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name:-0.045578956604004
name:-0.025734186172485
name:-0.021860122680664
Nakajima; Kazuhide Patent Filings

Nakajima; Kazuhide

Patent Applications and Registrations

Patent applications and USPTO patent grants for Nakajima; Kazuhide.The latest application filed is for "optical transmission system".

Company Profile
16.24.33
  • Nakajima; Kazuhide - Tokyo JP
  • NAKAJIMA; Kazuhide - Musashino-shi Tokyo
  • Nakajima; Kazuhide - Tsukuba JP
  • NAKAJIMA; Kazuhide - Tsukuba-shi Ibaraki-ken
  • Nakajima; Kazuhide - Ibaraki JP
  • Nakajima, Kazuhide - Mito-shi 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
Multi-core fiber connector
Grant 11,454,757 - Sakamoto , et al. September 27, 2
2022-09-27
Optical Communication System And Optical Communication Method
App 20220294536 - SAGAE; Yuto ;   et al.
2022-09-15
Optical Transmission System
App 20220294537 - SAKAMOTO; Taiji ;   et al.
2022-09-15
Multicore Optical Fiber And Design Method
App 20220276430 - SAKAMOTO; Taiji ;   et al.
2022-09-01
Multi-core Optical Fiber And Design Method
App 20220214496 - SAKAMOTO; Taiji ;   et al.
2022-07-07
Optical fiber and optical transmission system
Grant 11,366,266 - Sagae , et al. June 21, 2
2022-06-21
Acoustic Mode Propagation Speed Measurement Method And Acoustic Mode Propagation Speed Measurement Device
App 20220170817 - SAGAE; Yuto ;   et al.
2022-06-02
Multicore Optical Fiber And Design Method
App 20220120961 - Matsui; Takashi ;   et al.
2022-04-21
Optical fiber manufacturing method using relative bulk densities
Grant 11,237,322 - Arai , et al. February 1, 2
2022-02-01
Multicore Optical Fiber, Method Of Designing Multicore Optical Fiber, And Optical Transmission Method
App 20220003920 - MATSUI; Takashi ;   et al.
2022-01-06
Optical Connector Ferrule, Sleeve, And Method For Manufacturing Ferrule Member
App 20210389528 - Takaya; Masaaki ;   et al.
2021-12-16
Optical amplifier
Grant 11,196,227 - Wada , et al. December 7, 2
2021-12-07
Optical fiber and optical transmission system
Grant 11,156,767 - Urushibara , et al. October 26, 2
2021-10-26
Multi-core Fiber Connector
App 20210263213 - Sakamoto; Taiji ;   et al.
2021-08-26
Intermode Loss Difference Compensation Fiber, Optical Amplifier, And Transmission Path Design Method
App 20210234326 - YAMASHITA; Yoko ;   et al.
2021-07-29
Connection device, optical connector manufacturing device, connection method, and method for manufacturing optical connector
Grant 10,955,622 - Matsui , et al. March 23, 2
2021-03-23
Optical fiber design method
Grant 10,871,648 - Matsui , et al. December 22, 2
2020-12-22
Connection Device, Optical Connector Manufacturing Device, Connection Method, And Method For Manufacturing Optical Connector
App 20200379187 - MATSUI; Takashi ;   et al.
2020-12-03
Optical fiber and optical transmission system
Grant 10,790,905 - Mori , et al. September 29, 2
2020-09-29
Inter-mode loss difference compensator and optical amplifier
Grant 10,782,478 - Wada , et al. Sept
2020-09-22
Optical Fiber And Optical Transmission System
App 20200225407 - URUSHIBARA; Azusa ;   et al.
2020-07-16
Optical transmission system
Grant 10,705,291 - Urushibara , et al.
2020-07-07
Optical Fiber And Optical Transmission System
App 20200192022 - WADA; Masaki ;   et al.
2020-06-18
Optical Fiber And Optical Transmission System
App 20200116925 - SAGAE; Yuto ;   et al.
2020-04-16
Alignment apparatus and alignment method
Grant 10,620,372 - Matsui , et al.
2020-04-14
Optical connector
Grant 10,585,235 - Sakamoto , et al.
2020-03-10
Photonic crystal fiber and high-power light transmission system
Grant 10,545,333 - Matsui , et al. Ja
2020-01-28
Photonic crystal fiber and high-power light transmission system
Grant 10,539,784 - Matsui , et al. Ja
2020-01-21
Optical Fiber Manufacturing Method
App 20200012042 - ARAI; Shinichi ;   et al.
2020-01-09
Optical Fiber And Optical Transmission System
App 20190386748 - MORI; Takayoshi ;   et al.
2019-12-19
Photonic Crystal Fiber And High-power Light Transmission System
App 20190339513 - MATSUI; Takashi ;   et al.
2019-11-07
Optical Amplifier
App 20190245317 - WADA; Masaki ;   et al.
2019-08-08
Inter-mode Loss Difference Compensator And Optical Amplifier
App 20190196106 - WADA; Masaki ;   et al.
2019-06-27
Optical Transmission System
App 20190187365 - URUSHIBARA; Azusa ;   et al.
2019-06-20
Optical Connector
App 20190170931 - SAKAMOTO; Taiji ;   et al.
2019-06-06
Alignment Apparatus And Alignment Method
App 20180372954 - MATSUI; Takashi ;   et al.
2018-12-27
Optical Fiber Design Method
App 20180341104 - MATSUI; Takashi ;   et al.
2018-11-29
Photonic Crystal Fiber And High-power Light Transmission System
App 20180321439 - MATSUI; Takashi ;   et al.
2018-11-08
Measuring method of longitudinal distribution of bending loss of optical fiber, measuring method of longitudinal distribution of actual bending loss value of optical fiber, test method of optical line, manufacturing method of optical fiber cable, manufacturing method of optical fiber cord, and manuf
Grant 9,562,827 - Tanigawa , et al. February 7, 2
2017-02-07
Crosstalk measuring method and crosstalk measuring device
Grant 9,252,872 - Hamaguchi , et al. February 2, 2
2016-02-02
Measuring method of hole diameter, hole position, hole surface roughness, or bending loss of holey optical fiber, manufacturing method of holey optical fiber, and test method of optical line of holey optical fiber
Grant 9,175,946 - Ishida , et al. November 3, 2
2015-11-03
Hole-assisted optical fiber
Grant 9,075,185 - Kumano , et al. July 7, 2
2015-07-07
Optical connector and method for assembling same
Grant 8,702,317 - Koyama , et al. April 22, 2
2014-04-22
Crosstalk Measuring Method And Crosstalk Measuring Device
App 20140003807 - Hamaguchi; Hiroki ;   et al.
2014-01-02
Hole-assisted Optical Fiber
App 20130136409 - Kumano; Naomi ;   et al.
2013-05-30
Optical Connector And Method For Assembling Same
App 20120128303 - Koyama; Ryo ;   et al.
2012-05-24
Optical fiber preform manufacturing method
Grant 8,181,487 - Sugizaki , et al. May 22, 2
2012-05-22
Measuring Method Of Hole Diameter, Hole Position, Hole Surface Roughness, Or Bending Loss Of Holey Optical Fiber, Manufacturing Method Of Holey Optical Fiber, And Test Method Of Optical Line Of Holey Optical Fiber
App 20120044482 - ISHIDA; Itaru ;   et al.
2012-02-23
Measuring Method Of Longitudinal Distribution Of Bending Loss Of Optical Fiber, Measuring Method Of Longitudinal Distribution Of Actual Bending Loss Value Of Optical Fiber, Test Method Of Optical Line, Manufacturing Method Of Optical Fiber Cable, Manufacturing Method Of Optical Fiber Cord, And Manuf
App 20120042696 - TANIGAWA; Shoji ;   et al.
2012-02-23
Holey Single-mode Optical Fiber And Optical Transmission System Using Same
App 20120033923 - TAKENAGA; Katsuhiro ;   et al.
2012-02-09
Optical Fiber Preform Manufacturing Method
App 20100326139 - SUGIZAKI; Ryuichi ;   et al.
2010-12-30
Hole-assisted single mode optical fiber
Grant 7,228,040 - Nakajima , et al. June 5, 2
2007-06-05
Single mode optical fiber with electron vacancies
App 20060045448 - Nakajima; Kazuhide ;   et al.
2006-03-02
Method for manufacturing optical fiber using ultrasonic drill
App 20030136154 - Tajima, Katsusuke ;   et al.
2003-07-24

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