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YAMAMOTO; Masaaki Patent Filings

YAMAMOTO; Masaaki

Patent Applications and Registrations

Patent applications and USPTO patent grants for YAMAMOTO; Masaaki.The latest application filed is for "position estimation system and position estimation method".

Company Profile
12.95.107
  • YAMAMOTO; Masaaki - Tokyo JP
  • Yamamoto; Masaaki - Osaka JP
  • Yamamoto; Masaaki - Chiba JP
  • Yamamoto; Masaaki - Inzai JP
  • Yamamoto; Masaaki - Nagoya N/A JP
  • YAMAMOTO; Masaaki - Toyota-Shi JP
  • Yamamoto; Masaaki - Yokohama JP
  • Yamamoto; Masaaki - Oita Oita JP
  • Yamamoto; Masaaki - Yokohama-shi JP
  • Yamamoto; Masaaki - Aichi N/A JP
  • Yamamoto; Masaaki - Ibaraki JP
  • Yamamoto; Masaaki - Kanagawa JP
  • Yamamoto; Masaaki - Ibaraki-shi JP
  • Yamamoto; Masaaki - Nagoya-shi JP
  • YAMAMOTO; Masaaki - Ibarahki-shi JP
  • Yamamoto; Masaaki - Osaka-shi JP
  • Yamamoto; Masaaki - Kyoto N/A JP
  • Yamamoto; Masaaki - Kanagawa-ken JP
  • Yamamoto; Masaaki - Aichi-ken JP
  • Yamamoto; Masaaki - Tachikawa JP
  • Yamamoto; Masaaki - Kokubunji JP
  • Yamamoto; Masaaki - Oita-ken JP
  • YAMAMOTO; Masaaki - Inzai-Shi JP
  • Yamamoto; Masaaki - Chiba-ken JP
  • Yamamoto; Masaaki - Fukuyama JP
  • Yamamoto; Masaaki - Hyogo JP
  • Yamamoto; Masaaki - Amagasaki JP
*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.
Patent Activity
PatentDate
Position Estimation System And Position Estimation Method
App 20220312365 - YAMAMOTO; Masaaki
2022-09-29
Heat-resistant Magnesium Alloy For Casting
App 20220205069 - YAMORI; KEISUKE ;   et al.
2022-06-30
Portable attachment and communication system
Grant 11,189,205 - Yamamoto , et al. November 30, 2
2021-11-30
Work Support System And Work Support Method
App 20210224752 - OKADA; Mitsuhiro ;   et al.
2021-07-22
Implementing time display on a watch based on whether a wearer has looked at the watch
Grant 11,024,068 - Mitsugi , et al. June 1, 2
2021-06-01
Shovel
App 20200362532 - SHIRATANI; Ryuji ;   et al.
2020-11-19
Heat sink
Grant 10,809,011 - Chu , et al. October 20, 2
2020-10-20
Decorative Apparatus, Drive Control Method, And Communication System
App 20200320920 - SUGIUE; Yuki ;   et al.
2020-10-08
Apparatus and Method for Displaying Information, Program, and Communication System
App 20200118321 - Mitsugi; Masakazu ;   et al.
2020-04-16
Implementing display on a wristwatch according to a residual voltage of the wristwatch
Grant 10,573,047 - Mitsugi , et al. Feb
2020-02-25
Heat Sink
App 20200049418 - CHU; Kuang Yu ;   et al.
2020-02-13
Speech Dialogue System, Model Creating Device, Model Creating Method
App 20190392005 - YAMAMOTO; Masaaki ;   et al.
2019-12-26
Portable Attachment and Communication System
App 20190353974 - Yamamoto; Masaaki ;   et al.
2019-11-21
Apparatus and Method for Displaying Information, Program, and Communication System
App 20190304153 - Mitsugi; Masakazu ;   et al.
2019-10-03
Flattened heat pipe and manufacturing method thereof
Grant 10,408,547 - Kameoka , et al. Sept
2019-09-10
Apparatus, method, program and communication system for displaying information according to a residual voltage of a power supply of an information display apparatus
Grant 10,395,406 - Mitsugi , et al. A
2019-08-27
Portable attachment and communication system
Grant 10,359,683 - Yamamoto , et al. July 23, 2
2019-07-23
Adapter for a power outlet and a power plug
Grant 10,199,785 - Higashiura , et al. Fe
2019-02-05
Storage Battery Apparatus And Vehicle
App 20180366791 - KONDO; Atsumi ;   et al.
2018-12-20
Turning control apparatus
Grant 10,106,955 - Shiratani , et al. October 23, 2
2018-10-23
Rubber vibration isolator composition and rubber vibration isolator
Grant 10,059,834 - Yamamoto August 28, 2
2018-08-28
Brass alloy for tap water supply member
Grant 9,982,327 - Yamada , et al. May 29, 2
2018-05-29
Rubber Composition, Vibration Reduction Rubber Composition, And Vibration Reduction Rubber
App 20180142085 - YAMAMOTO; Masaaki
2018-05-24
Method for producing colloidal crystal and colloidal crystal
Grant 9,976,228 - Yamanaka , et al. May 22, 2
2018-05-22
Copper alloy for use in a member for use in water works
Grant 9,963,765 - Yamamoto , et al. May 8, 2
2018-05-08
Copper Alloy For Use In A Member For Water Works
App 20180087130 - MIYAMOTO; Takeaki ;   et al.
2018-03-29
Adapter
App 20180083402 - HIGASHIURA; Takashi ;   et al.
2018-03-22
Wearable device
Grant D810,739 - Mitsugi , et al. February 20, 2
2018-02-20
Head mount display and display control method
Grant 9,813,697 - Yamamoto , et al. November 7, 2
2017-11-07
Air Blowing Device
App 20170276389 - YAMAMOTO; Masaaki ;   et al.
2017-09-28
Apparatus And Method For Displaying Information, Program, And Communication System
App 20170243385 - Mitsugi; Masakazu ;   et al.
2017-08-24
Anti-vibration rubber composition and anti-vibration rubber
Grant 9,725,524 - Yamamoto August 8, 2
2017-08-08
Wearable device
Grant D794,012 - Mitsugi , et al. August 8, 2
2017-08-08
Low-lead Brass Alloy For Use In Member For Water Works
App 20170121791 - YAMADA; Hiroshi ;   et al.
2017-05-04
Portable Attachment And Communication System
App 20170045797 - Yamamoto; Masaaki ;   et al.
2017-02-16
Rubber Vibration Isolator Composition And Rubber Vibration Isolator
App 20170029602 - YAMAMOTO; Masaaki
2017-02-02
Head mount display and display control method
Grant 9,495,029 - Yamamoto , et al. November 15, 2
2016-11-15
Electromagnet device and electromagnetic relay using the same
Grant 9,437,382 - Kato , et al. September 6, 2
2016-09-06
Antivibration rubber composition, and antivibration rubber
Grant 9,416,257 - Nagata , et al. August 16, 2
2016-08-16
Head Mount Display And Display Control Method
App 20160195952 - Yamamoto; Masaaki ;   et al.
2016-07-07
Contactless power feed equipment
Grant 9,362,048 - Yamamoto June 7, 2
2016-06-07
Secondary-side power receiving circuit for contactless power feed equipment
Grant 9,349,533 - Yamamoto May 24, 2
2016-05-24
Head mount display and display control method
Grant 9,341,847 - Yamamoto , et al. May 17, 2
2016-05-17
Copper Alloy For Use In A Member For Use In Water Works
App 20160130684 - YAMAMOTO; Masaaki ;   et al.
2016-05-12
Air Blowing Device
App 20160121697 - YAMAMOTO; Masaaki ;   et al.
2016-05-05
Air Blowing Device
App 20160121696 - YAMAMOTO; Masaaki ;   et al.
2016-05-05
Flattened Heat Pipe And Manufacturing Method Thereof
App 20160033206 - KAMEOKA; Hideaki ;   et al.
2016-02-04
Semiconductor Device And Method For Manufacturing The Same
App 20160027833 - Yamamoto; Masaaki ;   et al.
2016-01-28
Anti-vibration rubber composition, crosslinked anti-vibration rubber composition, and anti-vibration rubber
Grant 9,238,730 - Yamamoto January 19, 2
2016-01-19
Head mount display and method for controlling head mount display
Grant 9,197,840 - Yamamoto , et al. November 24, 2
2015-11-24
Flattened heat pipe and manufacturing method thereof
Grant 9,188,396 - Kameoka , et al. November 17, 2
2015-11-17
Antivibration Rubber Composition, And Antivibration Rubber
App 20150299434 - Nagata; Takeshi ;   et al.
2015-10-22
Register
Grant 9,162,551 - Yamamoto , et al. October 20, 2
2015-10-20
Electromagnet device
Grant 9,153,403 - Sumino , et al. October 6, 2
2015-10-06
Electromagnet device and electromagnetic relay using the same
Grant 9,136,080 - Sumino , et al. September 15, 2
2015-09-15
Method For Manufacturing Rubber Composition
App 20150240054 - Yamamoto; Masaaki
2015-08-27
Semiconductor Device And Method Of Manufacturing The Same
App 20150221593 - YAMAMOTO; Masaaki ;   et al.
2015-08-06
Electromagnet device, method of assembling the same, and electromagnetic relay using the same
Grant 9,070,501 - Sumino , et al. June 30, 2
2015-06-30
Brass Alloy For Tap Water Supply Member
App 20150071813 - Yamada; Hiroshi ;   et al.
2015-03-12
Electromagnet Device And Electromagnetic Relay Using The Same
App 20150054603 - Kato; Tatsuro ;   et al.
2015-02-26
Signal transmission device
Grant 8,963,544 - Imatani , et al. February 24, 2
2015-02-24
Contact Mechanism And Electromagnetic Relay
App 20150042425 - Sumino; Toshifumi ;   et al.
2015-02-12
Transfer device
Grant 8,949,319 - Yamamoto , et al. February 3, 2
2015-02-03
Anti-vibration Rubber Composition, Crosslinked Anti-vibration Rubber Composition, And Anti-vibration Rubber
App 20150031809 - Yamamoto; Masaaki
2015-01-29
Head Mount Display And Display Control Method
App 20140198193 - Yamamoto; Masaaki ;   et al.
2014-07-17
Display Device And Display Control Method
App 20140198192 - Yamamoto; Masaaki ;   et al.
2014-07-17
Electric Wire Connection Structure
App 20140194014 - Inagaki; Kazuhito ;   et al.
2014-07-10
Electrical plug-provided cord
Grant 8,734,178 - Inagaki , et al. May 27, 2
2014-05-27
Anti-vibration Rubber Composition And Anti-vibration Rubber
App 20140080979 - Yamamoto; Masaaki
2014-03-20
Method For Producing Colloidal Crystal And Colloidal Crystal
App 20140069326 - Yamanaka; Junpei ;   et al.
2014-03-13
Electromagnet Device, Method Of Assembling The Same, And Electromagnetic Relay Using The Same
App 20140055223 - SUMINO; Toshifumi ;   et al.
2014-02-27
Electromagnet Device
App 20140055220 - SUMINO; Toshifumi ;   et al.
2014-02-27
Electromagnet Device And Electromagnetic Relay Using The Same
App 20140055221 - SUMINO; Toshifumi ;   et al.
2014-02-27
Contactless Power Feed Equipment
App 20130334896 - Yamamoto; Masaaki
2013-12-19
Secondary-side Power Receiving Circuit For Contactless Power Feed Equipment
App 20130334895 - Yamamoto; Masaaki
2013-12-19
Head Mount Display And Method For Controlling Head Mount Display
App 20130300949 - Yamamoto; Masaaki ;   et al.
2013-11-14
Head Mount Display And Display Control Method
App 20130285884 - Yamamoto; Masaaki ;   et al.
2013-10-31
Turning Control Apparatus
App 20130255243 - SHIRATANI; Ryuji ;   et al.
2013-10-03
Electrical Plug-provided Cord
App 20130115799 - Inagaki; Kazuhito ;   et al.
2013-05-09
Transfer device
Grant 8,423,614 - Yamamoto , et al. April 16, 2
2013-04-16
Magnetic coupler device and magnetically coupled isolator
Grant 8,400,748 - Yamamoto , et al. March 19, 2
2013-03-19
Modular Data Center
App 20130058029 - Ootani; Hideyoshi ;   et al.
2013-03-07
Control device, control method, and control program
Grant 8,335,139 - Yamamoto December 18, 2
2012-12-18
Transfer device
Grant 8,326,940 - Yamamoto , et al. December 4, 2
2012-12-04
Register
App 20120291893 - Yamamoto; Masaaki ;   et al.
2012-11-22
Transfer Device
App 20120284368 - Yamamoto; Masaaki ;   et al.
2012-11-08
Transfer Device
App 20120284179 - Yamamoto; Masaaki ;   et al.
2012-11-08
Transfer device
Grant 8,260,878 - Yamamoto , et al. September 4, 2
2012-09-04
Flattened Heat Pipe And Manufacturing Method Thereof
App 20120118537 - KAMEOKA; Hideaki ;   et al.
2012-05-17
System for managing program applications storable in a mobile terminal
Grant 8,166,291 - Natsuno , et al. April 24, 2
2012-04-24
System for managing program applications storable in a mobile terminal
Grant 8,140,846 - Natsuno , et al. March 20, 2
2012-03-20
Control Device, Control Method, And Control Program
App 20120002522 - YAMAMOTO; Masaaki
2012-01-05
Damper Plate
App 20110319005 - Sawada; Koji ;   et al.
2011-12-29
Information Distribution System, Fixed Station, Mobile Station, And Information Distribution Method
App 20110306378 - Himori; Yuki ;   et al.
2011-12-15
Magnetic Field Detection Element And Signal Transmission Element
App 20110273174 - Imatani; Hirofumi ;   et al.
2011-11-10
System for managing program applications storable in a mobile terminal
Grant 8,010,095 - Natsuno , et al. August 30, 2
2011-08-30
Playback device and management information acquiring method
Grant 7,969,842 - Yamamoto , et al. June 28, 2
2011-06-28
Terminal communication system
Grant 7,962,744 - Yamamoto , et al. June 14, 2
2011-06-14
Transfer Device
App 20110119349 - Yamamoto; Masaaki ;   et al.
2011-05-19
Process for producing membrane electrode assembly, and fuel cell using the membrane electrode assembly produced by the process
Grant 7,931,935 - Yamamoto , et al. April 26, 2
2011-04-26
RFID system and reader writer
Grant 7,902,961 - Yamazoe , et al. March 8, 2
2011-03-08
Recording apparatus and recording method
Grant 7,830,769 - Yamamoto , et al. November 9, 2
2010-11-09
Copper alloy water supply member
Grant 7,819,992 - Yamamoto , et al. October 26, 2
2010-10-26
Communication Network
App 20100228654 - Yamamoto; Masaaki ;   et al.
2010-09-09
System for managing program applications storable in a mobile terminal
Grant 7,742,756 - Natsuno , et al. June 22, 2
2010-06-22
Magnetic Coupler Device And Magnetically Coupled Isolator
App 20100134944 - Yamamoto; Masaaki ;   et al.
2010-06-03
System for managing program applications storable in a mobile terminal
Grant 7,706,786 - Natsuno , et al. April 27, 2
2010-04-27
Authentication method, communication apparatus, and relay apparatus
Grant 7,707,403 - Yamamoto , et al. April 27, 2
2010-04-27
Method and device for managing access to network
Grant 7,676,575 - Yamada , et al. March 9, 2
2010-03-09
System For Managing Program Applications Storable In A Mobile Terminal
App 20090327825 - Natsuno; Takeshi ;   et al.
2009-12-31
Wireless IC tag, wireless IC tag system and operation method for wireless IC tag
App 20090109001 - Watanabe; Kazuki ;   et al.
2009-04-30
Semiconductor Device And Method For Manufacturing Same
App 20090085128 - Nakamura; Yuki ;   et al.
2009-04-02
Hydrogen absorbing alloy and secondary battery
Grant 7,501,207 - Sakai , et al. March 10, 2
2009-03-10
Process For Producing Membrane Electrode Assembly, And Fuel Cell Using The Membrane Electrode Assembly Produced By The Process
App 20090050484 - YAMAMOTO; Masaaki ;   et al.
2009-02-26
Foaming Composition
App 20090036560 - SUZUKI; Akiko ;   et al.
2009-02-05
Catalyst, Process For Producing The Catalyst, Membrane Electrode Assembly, And Fuel Cell
App 20090029219 - FUKAZAWA; Taishi ;   et al.
2009-01-29
Communication terminal having a function to inhibit connection to a particular site and program thereof
Grant 7,483,690 - Muramatsu , et al. January 27, 2
2009-01-27
Playback Device And Management Information Acquiring Method
App 20080304383 - YAMAMOTO; Masaaki ;   et al.
2008-12-11
Recording Apparatus And Recording Method
App 20080304378 - YAMAMOTO; Masaaki ;   et al.
2008-12-11
Copper Alloy Water Supply Member
App 20080286142 - Yamamoto; Masaaki ;   et al.
2008-11-20
System For Managing Program Applications Storable In A Mobile Terminal
App 20080235359 - Natsuno; Takeshi ;   et al.
2008-09-25
System For Managing Program Applications Storable In A Mobile Terminal
App 20080222162 - Natsuno; Takeshi ;   et al.
2008-09-11
System For Managing Program Applications Storable In A Mobile Terminal
App 20080222411 - Natsuno; Takeshi ;   et al.
2008-09-11
System For Managing Program Applications Storable In A Mobile Terminal
App 20080214167 - Natsuno; Takeshi ;   et al.
2008-09-04
Mobile communication terminal
Grant 7,412,223 - Yamamoto , et al. August 12, 2
2008-08-12
Radio Frequency Identification Device
App 20080143488 - Yamamoto; Masaaki ;   et al.
2008-06-19
System for managing program applications storable in a mobile terminal
Grant 7,379,731 - Natsuno , et al. May 27, 2
2008-05-27
RFID system and reader writer
App 20080018430 - Yamazoe; Takanori ;   et al.
2008-01-24
RFID system
App 20070279191 - Yamamoto; Masaaki ;   et al.
2007-12-06
Hydrogen absorbing alloy and secondary battery
Grant 7,300,720 - Sakai , et al. November 27, 2
2007-11-27
Hydrogen Absorbing Alloy And Secondary Battery
App 20070259264 - Sakai; Isao ;   et al.
2007-11-08
Foaming composition
App 20070224149 - Suzuki; Akiko ;   et al.
2007-09-27
Hydrogen Absorbing Alloy And Secondary Battery
App 20070190417 - Sakai; Isao ;   et al.
2007-08-16
Recording apparatus and recording method
App 20070047398 - Yamamoto; Masaaki ;   et al.
2007-03-01
Abrasive water jet cutting machine
App 20070037495 - Matsubara; Masayuki ;   et al.
2007-02-15
Data obtaining method and terminals
Grant 7,174,333 - Yamada , et al. February 6, 2
2007-02-06
Portable telephone and terminal equipment
Grant 7,151,952 - Nakatsuchi , et al. December 19, 2
2006-12-19
Hydrogen absorbing alloy and secondary battery
App 20060254678 - Sakai; Isao ;   et al.
2006-11-16
Methods and devices for carrying out user authentication
Grant 7,096,492 - Yamamoto , et al. August 22, 2
2006-08-22
Communication terminal having a function to inhibit connection to a particular site and program thereof
App 20060155803 - Muramatsu; Naoki ;   et al.
2006-07-13
Hydrogen absorbing alloy and secondary battery
Grant 7,005,212 - Sakai , et al. February 28, 2
2006-02-28
Heat sink with fins and manufacturing method thereof
Grant 6,956,740 - Shimura , et al. October 18, 2
2005-10-18
Portable telephone and terminal equipment
App 20050136984 - Nakatsuchi, Masaharu ;   et al.
2005-06-23
Plate-type heat pipe and method for manufacturing the same
App 20050126759 - Ueki, Tatsuhiko ;   et al.
2005-06-16
Communication network
App 20050102205 - Yamamoto, Masaaki ;   et al.
2005-05-12
Plate-type heat pipe and method for manufacturing the same
Grant 6,871,701 - Ueki , et al. March 29, 2
2005-03-29
Portable telephone and terminal equipment
Grant 6,826,413 - Nakatsuchi , et al. November 30, 2
2004-11-30
Hydrogen-absorbing alloy, secondary battery, hybrid car and electromobile
Grant 6,703,164 - Hayashida , et al. March 9, 2
2004-03-09
Heat sink with fins and manufacturing method thereof
App 20040037039 - Shimura, Takahiro ;   et al.
2004-02-26
System for managing program stored in storage block of mobile terminal
App 20030236867 - Natsuno, Takeshi ;   et al.
2003-12-25
Plate-type heat pipe and method for manufacturing the same
App 20030173064 - Ueki, Tatsuhiko ;   et al.
2003-09-18
Method and device for authenticating user
App 20030139910 - Yamamoto, Masaaki ;   et al.
2003-07-24
Authentication method, communication apparatus, and relay apparatus
App 20030140226 - Yamamoto, Masaaki ;   et al.
2003-07-24
Terminal communication system
App 20030110374 - Yamamoto, Masaaki ;   et al.
2003-06-12
Method and device for managing access to network
App 20030101264 - Yamada, Kazuhiro ;   et al.
2003-05-29
Data obtaining method and terminals
App 20030097373 - Yamada, Kazuhiro ;   et al.
2003-05-22
Hydrogen absorbing alloy and secondary battery
App 20030096164 - Sakai, Isao ;   et al.
2003-05-22
Flat type heat pipe
Grant 6,397,935 - Yamamoto , et al. June 4, 2
2002-06-04
Nickel-metal hydride secondary battery
Grant 6,399,247 - Kitayama , et al. June 4, 2
2002-06-04
Flat type heat pipe
App 20020056542 - Yamamoto, Masaaki ;   et al.
2002-05-16
Logistics management system managing distribution and schedule of product form order-acceptance to delivery, using a computer
App 20020059110 - Yamamoto, Masaaki ;   et al.
2002-05-16
Plate type heat pipe, method of manufacturing same and cooling apparatus using plate type heat pipe
App 20020007555 - Ikeda, Masami ;   et al.
2002-01-24
Hydrogen-absorbing alloy, secondary battery, hybrid car and electromobile
App 20010041292 - Hayashida, Hirotaka ;   et al.
2001-11-15
Plate type heat pipe and a cooling system using same
Grant 6,317,322 - Ueki , et al. November 13, 2
2001-11-13
Plate Type Heat Pipe And Its Mounting Structure
App 20010022219 - IKEDA, MASAMI ;   et al.
2001-09-20
Cooling device with heat pipe
Grant 6,269,866 - Yamamoto , et al. August 7, 2
2001-08-07
Plate type heat pipe and cooling structure using it
Grant 6,263,959 - Ikeda , et al. July 24, 2
2001-07-24
Plate type heat pipe method of manufacturing same and cooling apparatus using plate type heat pipe
Grant 6,256,201 - Ikeda , et al. July 3, 2
2001-07-03
Compressed mesh wick, method for manufacturing same, and plate type heat pipe including compressed mesh wick
App 20010004934 - Yamamoto, Masaaki ;   et al.
2001-06-28
Nickel-hydrogen secondary battery
Grant 6,248,475 - Hayashida , et al. June 19, 2
2001-06-19
Hydrogen-absorbing alloy, electrode and secondary battery
Grant 6,214,492 - Kono , et al. April 10, 2
2001-04-10
Nickel-hydrogen secondary battery
Grant 6,200,705 - Hayashida , et al. March 13, 2
2001-03-13
Method for manufacturing cooling unit comprising heat pipes and cooling unit
Grant 6,189,213 - Kimura , et al. February 20, 2
2001-02-20
Hydrogen-absorbing alloy
Grant 6,130,006 - Kohno , et al. October 10, 2
2000-10-10
Cooling device with heat pipe
Grant 6,082,443 - Yamamoto , et al. July 4, 2
2000-07-04
Method for manufacturing cooling unit comprising heat pipes and cooling unit
Grant 5,960,866 - Kimura , et al. October 5, 1
1999-10-05
Method for making hot-rolled steel sheet and apparatus therefor
Grant 5,927,118 - Minote , et al. July 27, 1
1999-07-27
Nickel-hydrogen secondary battery
Grant 5,798,189 - Hayashida , et al. August 25, 1
1998-08-25
Spin coating apparatus with an upper spin plate cleaning nozzle
Grant 5,209,180 - Shoda , et al. May 11, 1
1993-05-11
Ultra high molecular weight concurrently sintered and cross-linked polyethylene product
Grant 4,731,199 - Matsuo , et al. March 15, 1
1988-03-15
Method of producing accurately sized material of ultra high molecular weight polyethylene
Grant 4,518,552 - Matsuo , et al. May 21, 1
1985-05-21
Process for the preparation of Limulina lysate
Grant 3,954,663 - Yamamoto , et al. May 4, 1
1976-05-04

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