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Takenaga; Katsuhiro Patent Filings

Takenaga; Katsuhiro

Patent Applications and Registrations

Patent applications and USPTO patent grants for Takenaga; Katsuhiro.The latest application filed is for "method for aligning multicore fiber, method for manufacturing multicore fiber connector, device for aligning multicore fiber, and multicore fiber fusion splicing machine".

Company Profile
8.58.61
  • Takenaga; Katsuhiro - Chiba JP
  • Takenaga; Katsuhiro - Sakura-shi JP
  • Takenaga; Katsuhiro - Sakura 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
Method For Aligning Multicore Fiber, Method For Manufacturing Multicore Fiber Connector, Device For Aligning Multicore Fiber, And Multicore Fiber Fusion Splicing Machine
App 20220291452 - Ohzeki; Masaki ;   et al.
2022-09-15
Optical Fiber Preform Production Method, Optical Fiber Preform, And Optical Fiber Production Method
App 20200369555 - Amma; Yoshimichi ;   et al.
2020-11-26
Optical Fiber Drawing Furnace Heating Element, Optical Fiber Drawing Furnace, And Method For Manufacturing Optical Fiber
App 20200308043 - Kitamura; Takayuki ;   et al.
2020-10-01
Multicore fiber
Grant 10,690,843 - Sasaki , et al.
2020-06-23
Multicore fiber for communication
Grant 10,663,653 - Takenaga , et al.
2020-05-26
Optical fiber
Grant 10,656,327 - Saito , et al.
2020-05-19
Characteristic-measuring apparatus and characteristic-measuring method for multi-core fiber
Grant 10,488,297 - Saito , et al. Nov
2019-11-26
Method of measuring crosstalk of multicore fiber and apparatus of measuring the same
Grant 10,444,113 - Saito , et al. Oc
2019-10-15
Multicore fiber and optical cable
Grant 10,365,429 - Saito , et al. July 30, 2
2019-07-30
Multi-core fiber
Grant 10,310,176 - Sasaki , et al.
2019-06-04
Multicore fiber
Grant 10,295,736 - Amma , et al.
2019-05-21
Multicore Fiber For Communication
App 20190072712 - Takenaga; Katsuhiro ;   et al.
2019-03-07
Optical Fiber
App 20190049658 - Saito; Shota ;   et al.
2019-02-14
Optical Device
App 20190033512 - Uemura; Hitoshi ;   et al.
2019-01-31
Multicore Fiber
App 20190033513 - Sasaki; Yusuke ;   et al.
2019-01-31
Optical transmission device and bidirectional optical transmission device
Grant 10,162,136 - Goi , et al. Dec
2018-12-25
Multicore fiber for communication
Grant 10,156,674 - Takenaga , et al. Dec
2018-12-18
Multicore Fiber
App 20180356590 - Amma; Yoshimichi ;   et al.
2018-12-13
Multicore fiber
Grant 10,101,526 - Sasaki , et al. October 16, 2
2018-10-16
Method Of Measuring Crosstalk Of Multicore Fiber And Apparatus Of Measuring The Same
App 20180246007 - Saito; Shota ;   et al.
2018-08-30
Multicore Fiber And Optical Cable
App 20180246275 - Saito; Shota ;   et al.
2018-08-30
Characteristic-measuring Apparatus And Characteristic-measuring Method For Multi-core Fiber
App 20180246008 - Saito; Shota ;   et al.
2018-08-30
Optical Transmission Device And Bidirectional Optical Transmission Device
App 20180224613 - Goi; Kazuhiro ;   et al.
2018-08-09
Multicore fiber for communication
Grant 10,042,114 - Takenaga , et al. August 7, 2
2018-08-07
Multi-core Fiber
App 20180120502 - Sasaki; Yusuke ;   et al.
2018-05-03
Multicore Fiber
App 20180120501 - Sasaki; Yusuke ;   et al.
2018-05-03
Multicore fiber and optical cable
Grant 9,891,377 - Saito , et al. February 13, 2
2018-02-13
Multicore fiber
Grant 9,817,183 - Amma , et al. November 14, 2
2017-11-14
Multicore Fiber
App 20170235043 - Amma; Yoshimichi ;   et al.
2017-08-17
Multicore fiber with different-mode interaction section
Grant 9,709,729 - Sasaki , et al. July 18, 2
2017-07-18
Multicore Fiber And Optical Cable
App 20170199325 - SAITO; Shota ;   et al.
2017-07-13
Optical fiber for amplification and optical fiber amplifier using the same
Grant 9,698,557 - Hosokawa , et al. July 4, 2
2017-07-04
Amplification optical fiber and optical fiber amplifier
Grant 9,673,589 - Hosokawa , et al. June 6, 2
2017-06-06
Multi-core fiber
Grant 9,588,284 - Sasaki , et al. March 7, 2
2017-03-07
Amplification Optical Fiber And Optical Fiber Amplifier
App 20170054266 - Hosokawa; Tsukasa ;   et al.
2017-02-23
Amplifying optical fiber and optical amplifier
Grant 9,515,450 - Matsuo , et al. December 6, 2
2016-12-06
Optical device
Grant 9,477,035 - Uemura , et al. October 25, 2
2016-10-25
Optical Fiber For Amplification And Optical Fiber Amplifier Using The Same
App 20160268757 - Hosokawa; Tsukasa ;   et al.
2016-09-15
Optical device
Grant 9,435,943 - Takenaga , et al. September 6, 2
2016-09-06
Multicore Fiber For Communication
App 20160245993 - Takenaga; Katsuhiro ;   et al.
2016-08-25
Optical Device
App 20160245992 - Takenaga; Katsuhiro ;   et al.
2016-08-25
Multicore Fiber For Communication
App 20160245994 - Takenaga; Katsuhiro ;   et al.
2016-08-25
Multi-core Fiber
App 20160187576 - Sasaki; Yusuke ;   et al.
2016-06-30
Multicore Fiber
App 20160187577 - Sasaki; Yusuke ;   et al.
2016-06-30
Method of producing preform for coupled multi-core fiber, method of producing coupled multi-core fiber, and coupled multi-core fiber
Grant 9,366,807 - Tanigawa , et al. June 14, 2
2016-06-14
Amplifying optical fiber and optical amplifier
Grant 9,252,556 - Matsuo , et al. February 2, 2
2016-02-02
Multi-core Fiber
App 20160004009 - Takenaga; Katsuhiro ;   et al.
2016-01-07
Sold photonic band gap fiber, fiber module using sold photonic band gap fiber, fiber amplifier, and fiber laser
Grant 9,229,157 - Tanigawa , et al. January 5, 2
2016-01-05
Method of connecting multi-core fibers
Grant 9,199,411 - Arakawa , et al. December 1, 2
2015-12-01
Amplifying Optical Fiber And Optical Amplifier
App 20150318661 - Matsuo; Shoichiro ;   et al.
2015-11-05
Amplifying Optical Fiber And Optical Amplifier
App 20150318659 - Matsuo; Shoichiro ;   et al.
2015-11-05
Optical fiber having holes
Grant 9,121,995 - Tanigawa , et al. September 1, 2
2015-09-01
Optical Device
App 20150234120 - Uemura; Hitoshi ;   et al.
2015-08-20
Multi-core fiber, and multi-core fiber connection method using the same
Grant 9,086,519 - Arakawa , et al. July 21, 2
2015-07-21
Optical fan-in/fan-out device
Grant 9,069,118 - Matsuo , et al. June 30, 2
2015-06-30
Fan-in/fan-out device for multicore fiber
Grant 9,069,116 - Uemura , et al. June 30, 2
2015-06-30
Method Of Producing Preform For Coupled Multi-core Fiber, Method Of Producing Coupled Multi-core Fiber, And Coupled Multi-core Fiber
App 20150139600 - Tanigawa; Shoji ;   et al.
2015-05-21
Multicore fiber
Grant 9,008,479 - Tanigawa , et al. April 14, 2
2015-04-14
Multicore fiber
Grant 8,971,685 - Matsuo , et al. March 3, 2
2015-03-03
Method of producing preform for coupled multi-core fiber, method of producing coupled multi-core fiber, and coupled multi-core fiber
Grant 8,971,684 - Tanigawa , et al. March 3, 2
2015-03-03
Multicore fiber
Grant 8,965,165 - Sasaki , et al. February 24, 2
2015-02-24
Fan-in/fan-out Device For Multicore Fiber
App 20140369659 - UEMURA; Hitoshi ;   et al.
2014-12-18
Multicore Fiber For Communication
App 20140178024 - Takenaga; Katsuhiro ;   et al.
2014-06-26
Coupled multicore fiber
Grant 8,750,663 - Tanigawa , et al. June 10, 2
2014-06-10
Optical fiber communication system
Grant 8,718,468 - Takenaga , et al. May 6, 2
2014-05-06
Multi-cladding optical fiber, optical fiber module, fiber laser, and fiber amplifier
Grant 8,660,396 - Tanigawa , et al. February 25, 2
2014-02-25
Optical Fan-in/fan-out Device
App 20140010508 - Matsuo; Shoichiro ;   et al.
2014-01-09
Multicore Fiber
App 20140010507 - Sasaki; Yusuke ;   et al.
2014-01-09
Multi-core Fiber, And Multi-core Fiber Connection Method Using The Same
App 20140003779 - Arakawa; Yoko ;   et al.
2014-01-02
Method Of Connecting Multi-core Fibers
App 20130312899 - Arakawa; Yoko ;   et al.
2013-11-28
Multicore Fiber
App 20130308913 - Tanigawa; Shoji ;   et al.
2013-11-21
Multicore Fiber
App 20130243384 - Matsuo; Shoichiro ;   et al.
2013-09-19
Fiber fuse terminator with optical fiber with a core and a cladding having longitudinal holes therein
Grant 8,526,775 - Takenaga September 3, 2
2013-09-03
Sold Photonic Band Gap Fiber, Fiber Module Using Sold Photonic Band Gap Fiber, Fiber Amplifier, And Fiber Laser
App 20130209046 - TANIGAWA; Shoji ;   et al.
2013-08-15
Fiber laser device
Grant 8,391,323 - Takenaga March 5, 2
2013-03-05
Method of manufacturing photonic band gap fiber base material and fiber
Grant 8,381,548 - Takenaga February 26, 2
2013-02-26
Coupled Multicore Fiber
App 20130044988 - Tanigawa; Shoji ;   et al.
2013-02-21
Method Of Producing Preform For Coupled Multi-core Fiber, Method Of Producing Coupled Multi-core Fiber, And Coupled Multi-core Fiber
App 20130044989 - Tanigawa; Shoji ;   et al.
2013-02-21
Fiber Fuse Terminator
App 20130010817 - TAKENAGA; Katsuhiro
2013-01-10
Optical Fiber
App 20120288247 - TANIGAWA; Shoji ;   et al.
2012-11-15
Multicore fiber
Grant 8,285,094 - Takenaga , et al. October 9, 2
2012-10-09
Fiber fuse terminator
Grant 8,244,091 - Takenaga August 14, 2
2012-08-14
Multicore Fiber
App 20120195563 - Takenaga; Katsuhiro ;   et al.
2012-08-02
Optical Fiber Communication System
App 20120163801 - Takenaga; Katsuhiro ;   et al.
2012-06-28
Method Of Manufacturing Photonic Band Gap Fiber Base Material And Method Of Manufacturing Photonic Band Gap Fiber
App 20120151968 - Takenaga; Katsuhiro
2012-06-21
Holey Single-mode Optical Fiber And Optical Transmission System Using Same
App 20120033923 - TAKENAGA; Katsuhiro ;   et al.
2012-02-09
Multi-cladding Optical Fiber, Optical Fiber Module, Fiber Laser, And Fiber Amplifier
App 20110305251 - TANIGAWA; Shoji ;   et al.
2011-12-15
Fiber Laser Device
App 20110286474 - Takenaga; Katsuhiro
2011-11-24
Extended triangular lattice type photonic bandgap fiber
Grant 7,831,121 - Guan , et al. November 9, 2
2010-11-09
Method for measuring a differential mode delay of a multimode optical fiber
Grant 7,817,257 - Takenaga , et al. October 19, 2
2010-10-19
Photonic Bandgap Fiber
App 20100254669 - TAKENAGA; Katsuhiro ;   et al.
2010-10-07
Fiber Fuse Terminator, Fiber Laser, And Optical Transmission Line
App 20100177792 - TAKENAGA; Katsuhiro
2010-07-15
Photonic band gap fiber and method of producing the same
Grant 7,593,611 - Guan , et al. September 22, 2
2009-09-22
Extended Triangular Lattice Type Photonic Bandgap Fiber
App 20090208176 - GUAN; Ning ;   et al.
2009-08-20
Extended triangular lattice type photonic bandgap fiber
Grant 7,551,824 - Guan , et al. June 23, 2
2009-06-23
Photonic Band Gap Fiber And Method Of Producing The Same
App 20080247721 - GUAN; Ning ;   et al.
2008-10-09
Graded-index multimode fiber and manufacturing method therefor
Grant 7,406,235 - Guan , et al. July 29, 2
2008-07-29
Photonic Band Gap Fiber And Method Of Producing The Same
App 20080170830 - Guan; Ning ;   et al.
2008-07-17
Hole-assisted holey fiber and low bending loss multimode holey fiber
Grant 7,292,762 - Guan , et al. November 6, 2
2007-11-06
Extended Triangular Lattice Type Photonic Bandgap Fiber
App 20070230885 - GUAN; Ning ;   et al.
2007-10-04
Method for measuring multimode optical fiber
App 20070159620 - Takenaga; Katsuhiro
2007-07-12
Wavelength division multiplexing system
Grant 7,242,870 - Guan , et al. July 10, 2
2007-07-10
Method for compensating modal dispersion in multimode optical fiber transmission path
Grant 7,139,457 - Guan , et al. November 21, 2
2006-11-21
Graded-index multimode fiber and manufacturing method therefor
Grant 7,043,126 - Guan , et al. May 9, 2
2006-05-09
Method for compensating modal dispersion in multimode optical fiber transmission path
App 20060034573 - Guan; Ning ;   et al.
2006-02-16
Hole-assisted holey fiber and low bending loss multimode holey fiber
App 20060034574 - Guan; Ning ;   et al.
2006-02-16
Wavelength division multiplexing system
App 20050157995 - Guan, Ning ;   et al.
2005-07-21
Graded-index multimode fiber and manufacturing method therefor
App 20050053351 - Guan, Ning ;   et al.
2005-03-10
Graded-index multimode fiber and manufacturing method therefor
App 20050013570 - Guan, Ning ;   et al.
2005-01-20

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