Masaharu Doi

Person

Sapporo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical waveguide device
- Patent number 11,693,290
- Issue date Jul 4, 2023
- Fujitsu Optical Components Limited
- Shuntaro Makino
- G02 - OPTICS
Information Patent Grant
Optical waveguide device and method of manufacturing optical wavegu...
- Patent number 11,693,291
- Issue date Jul 4, 2023
- Fujitsu Optical Components Limited
- Shuntaro Makino
- G02 - OPTICS
Information Patent Grant
Optical waveguide device
- Patent number 11,624,965
- Issue date Apr 11, 2023
- Fujitsu Optical Components Limited
- Shuntaro Makino
- G02 - OPTICS
Information Patent Grant
Electro-optic device
- Patent number 11,086,149
- Issue date Aug 10, 2021
- TDK Corporation
- Shinji Iwatsuka
- G02 - OPTICS
Information Patent Grant
Optical modulator
- Patent number 11,003,043
- Issue date May 11, 2021
- TDK Corporation
- Yasuhiro Ohmori
- G02 - OPTICS
Information Patent Grant
Electro-optic device
- Patent number 11,003,044
- Issue date May 11, 2021
- TDK Corporation
- Hiroki Hara
- G02 - OPTICS
Information Patent Grant
Optical modulator
- Patent number 10,989,980
- Issue date Apr 27, 2021
- TDK Corporation
- Shinji Iwatsuka
- G02 - OPTICS
Information Patent Grant
Optical modulator, optical modulator module, and optical transmitte...
- Patent number 10,754,179
- Issue date Aug 25, 2020
- Fujitsu Optical Components Limited
- Yasuhiro Ohmori
- G02 - OPTICS
Information Patent Grant
Optical modulator
- Patent number 10,303,036
- Issue date May 28, 2019
- Fujitsu Optical Components Limited
- Shintaro Takeuchi
- G02 - OPTICS
Information Patent Grant
Optical module and optical modulator
- Patent number 10,295,883
- Issue date May 21, 2019
- Fujitsu Optical Components Limited
- Shinji Maruyama
- G02 - OPTICS
Information Patent Grant
Optical modulator and optical module
- Patent number 10,268,099
- Issue date Apr 23, 2019
- Fujitsu Optical Components Limited
- Masaharu Doi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical module
- Patent number 10,175,553
- Issue date Jan 8, 2019
- Fujitsu Optical Components Limited
- Akira Ishii
- G02 - OPTICS
Information Patent Grant
Optical modulator and optical module
- Patent number 10,095,080
- Issue date Oct 9, 2018
- Fujitsu Optical Components Limited
- Yasuhiro Ohmori
- G02 - OPTICS
Information Patent Grant
Optical modulator that is formed using ferroelectric substrate
- Patent number 10,082,683
- Issue date Sep 25, 2018
- Fujitsu Optical Components Limited
- Yoshihiko Yoshida
- G02 - OPTICS
Information Patent Grant
Optical module and optical fiber assembly
- Patent number 10,054,744
- Issue date Aug 21, 2018
- Fujitsu Optical Components Limited
- Masaharu Doi
- G02 - OPTICS
Information Patent Grant
Optical modulator module that includes a plurality of optical modul...
- Patent number 9,740,077
- Issue date Aug 22, 2017
- Fujitsu Optical Components Limited
- Masaharu Doi
- G02 - OPTICS
Information Patent Grant
Optical modulator
- Patent number 9,709,743
- Issue date Jul 18, 2017
- Fujitsu Optical Components Limited
- Masaharu Doi
- G02 - OPTICS
Information Patent Grant
Optical transmission device
- Patent number 9,520,948
- Issue date Dec 13, 2016
- Fujitsu Optical Components Limited
- Masaharu Doi
- G02 - OPTICS
Information Patent Grant
Optical waveguide device, manufacturing method therefor, optical mo...
- Patent number 8,805,127
- Issue date Aug 12, 2014
- Fujitsu Limited
- Tetsuya Miyatake
- G02 - OPTICS
Information Patent Grant
Polarization multiplexing modulator
- Patent number 8,774,567
- Issue date Jul 8, 2014
- Fujitsu Limited
- Masaharu Doi
- G02 - OPTICS
Information Patent Grant
Optical device and optical transmitter
- Patent number 8,774,583
- Issue date Jul 8, 2014
- Fujitsu Limited
- Takashi Shiraishi
- G02 - OPTICS
Information Patent Grant
Optical waveguide device, manufacturing method therefor, optical mo...
- Patent number 8,582,928
- Issue date Nov 12, 2013
- Fujitsu Limited
- Tetsuya Miyatake
- G02 - OPTICS
Information Patent Grant
Polarization conversion device and polarization multiplexing modulator
- Patent number 8,280,200
- Issue date Oct 2, 2012
- Fujitsu Limited
- Masaharu Doi
- G02 - OPTICS
Information Patent Grant
Multilevel light intensity modulator
- Patent number 7,941,011
- Issue date May 10, 2011
- Fujitsu Limited
- Masaharu Doi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical waveguide device
- Patent number 7,787,717
- Issue date Aug 31, 2010
- Fujitsu Limited
- Yasuhiro Ohmori
- G02 - OPTICS
Information Patent Grant
Waveguide type optical device and manufacturing method of the waveg...
- Patent number 7,729,580
- Issue date Jun 1, 2010
- Fujitsu Limited
- Kazuhiro Tanaka
- G02 - OPTICS
Information Patent Grant
Optical device
- Patent number 7,689,078
- Issue date Mar 30, 2010
- Fujitsu Limited
- Akira Ishii
- G02 - OPTICS
Information Patent Grant
Optical module and optical switching device
- Patent number 7,643,712
- Issue date Jan 5, 2010
- Fujitsu Limited
- Masaharu Doi
- G02 - OPTICS
Information Patent Grant
Optical device
- Patent number 7,627,200
- Issue date Dec 1, 2009
- Fujitsu Limited
- Takashi Shiraishi
- G02 - OPTICS
Information Patent Grant
Optical device
- Patent number 7,551,820
- Issue date Jun 23, 2009
- Fujitsu Limited
- Akira Ishii
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL DEVICE AND OPTICAL COMMUNICATION APPARATUS
- Publication number 20220390775
- Publication date Dec 8, 2022
- FUJITSU OPTICAL COMPONENTS LIMITED
- Shuntaro Makino
- G02 - OPTICS
Information Patent Application
OPTICAL WAVEGUIDE DEVICE
- Publication number 20220050351
- Publication date Feb 17, 2022
- FUJITSU OPTICAL COMPONENTS LIMITED
- Shuntaro Makino
- G02 - OPTICS
Information Patent Application
OPTICAL WAVEGUIDE DEVICE
- Publication number 20210325760
- Publication date Oct 21, 2021
- FUJITSU OPTICAL COMPONENTS LIMITED
- Shuntaro Makino
- G02 - OPTICS
Information Patent Application
OPTICAL WAVEGUIDE DEVICE AND METHOD OF MANUFACTURING OPTICAL WAVEGU...
- Publication number 20210325761
- Publication date Oct 21, 2021
- FUJITSU OPTICAL COMPONENTS LIMITED
- Shuntaro MAKINO
- G02 - OPTICS
Information Patent Application
ELECTRO-OPTIC DEVICE
- Publication number 20210103165
- Publication date Apr 8, 2021
- TDK Corporation
- Shinji IWATSUKA
- G02 - OPTICS
Information Patent Application
ELECTRO-OPTIC DEVICE
- Publication number 20200310216
- Publication date Oct 1, 2020
- TDK Corporation
- Shinji IWATSUKA
- G02 - OPTICS
Information Patent Application
OPTICAL MODULATOR
- Publication number 20200271963
- Publication date Aug 27, 2020
- TDK Corporation
- Shinji Iwatsuka
- G02 - OPTICS
Information Patent Application
OPTICAL MODULATOR
- Publication number 20200272020
- Publication date Aug 27, 2020
- FUJITSU OPTICAL COMPONENTS LIMITED
- Yasuhiro Ohmori
- G02 - OPTICS
Information Patent Application
ELECTRO-OPTIC DEVICE
- Publication number 20200272021
- Publication date Aug 27, 2020
- FUJITSU OPTICAL COMPONENTS LIMITED
- Hiroki HARA
- G02 - OPTICS
Information Patent Application
OPTICAL MODULATOR, OPTICAL MODULATOR MODULE, AND OPTICAL TRANSMITTE...
- Publication number 20200041824
- Publication date Feb 6, 2020
- FUJITSU OPTICAL COMPONENTS LIMITED
- Yasuhiro Ohmori
- G02 - OPTICS
Information Patent Application
OPTICAL MODULATOR AND OPTICAL MODULE
- Publication number 20180120670
- Publication date May 3, 2018
- FUJITSU OPTICAL COMPONENTS LIMITED
- Masaharu DOI
- G02 - OPTICS
Information Patent Application
OPTICAL MODULE AND OPTICAL MODULATOR
- Publication number 20180095339
- Publication date Apr 5, 2018
- FUJITSU OPTICAL COMPONENTS LIMITED
- Shinji MARUYAMA
- G02 - OPTICS
Information Patent Application
OPTICAL MODULATOR
- Publication number 20180081251
- Publication date Mar 22, 2018
- FUJITSU OPTICAL COMPONENTS LIMITED
- Shintaro TAKEUCHI
- G02 - OPTICS
Information Patent Application
OPTICAL MODULATOR THAT IS FORMED USING FERROELECTRIC SUBSTRATE
- Publication number 20180031869
- Publication date Feb 1, 2018
- FUJITSU OPTICAL COMPONENTS LIMITED
- YOSHIHIKO YOSHIDA
- G02 - OPTICS
Information Patent Application
OPTICAL MODULATOR AND OPTICAL MODULE
- Publication number 20180031945
- Publication date Feb 1, 2018
- FUJITSU OPTICAL COMPONENTS LIMITED
- Yasuhiro OHMORI
- G02 - OPTICS
Information Patent Application
OPTICAL MODULE
- Publication number 20170212402
- Publication date Jul 27, 2017
- FUJITSU OPTICAL COMPONENTS LIMITED
- Akira ISHII
- G02 - OPTICS
Information Patent Application
OPTICAL MODULATOR MODULE THAT INCLUDES A PLURALITY OF OPTICAL MODUL...
- Publication number 20170115546
- Publication date Apr 27, 2017
- FUJITSU OPTICAL COMPONENTS LIMITED
- Masaharu Doi
- G02 - OPTICS
Information Patent Application
OPTICAL MODULATOR
- Publication number 20170045688
- Publication date Feb 16, 2017
- FUJITSU OPTICAL COMPONENTS LIMITED
- Masaharu DOI
- G02 - OPTICS
Information Patent Application
OPTICAL MODULATOR THAT INCLUDES OPTICAL WAVEGUIDE FORMED IN FERROEL...
- Publication number 20170017097
- Publication date Jan 19, 2017
- FUJITSU OPTICAL COMPONENTS LIMITED
- Masaharu DOI
- G02 - OPTICS
Information Patent Application
OPTICAL MODULE AND OPTICAL FIBER ASSEMBLY
- Publication number 20160313510
- Publication date Oct 27, 2016
- Fujitsu Optical Components Limited
- Masaharu Doi
- G02 - OPTICS
Information Patent Application
OPTICAL MODULATOR THAT INCLUDES OPTICAL WAVEGUIDE FORMED IN FERROEL...
- Publication number 20160223881
- Publication date Aug 4, 2016
- FUJITSU OPTICAL COMPONENTS LIMITED
- Masaharu DOI
- G02 - OPTICS
Information Patent Application
OPTICAL TRANSMISSION DEVICE
- Publication number 20150261017
- Publication date Sep 17, 2015
- FUJITSU OPTICAL COMPONENTS LIMITED
- Masaharu DOI
- G02 - OPTICS
Information Patent Application
OPTICAL MODULATOR
- Publication number 20150261019
- Publication date Sep 17, 2015
- FUJITSU OPTICAL COMPONENTS LIMITED
- Yoshihiko YOSHIDA
- G02 - OPTICS
Information Patent Application
OPTICAL WAVEGUIDE DEVICE, MANUFACTURING METHOD THEREFOR, OPTICAL MO...
- Publication number 20140034602
- Publication date Feb 6, 2014
- Fujitsu Limited
- Tetsuya MIYATAKE
- G02 - OPTICS
Information Patent Application
POLARIZATION MULTIPLEXING MODULATOR
- Publication number 20130010345
- Publication date Jan 10, 2013
- Fujitsu Limited
- Masaharu Doi
- G02 - OPTICS
Information Patent Application
OPTICAL WAVEGUIDE DEVICE, MANUFACTURING METHOD THEREFOR, OPTICAL MO...
- Publication number 20100195953
- Publication date Aug 5, 2010
- Fujitsu Limited
- Tetsuya MIYATAKE
- G02 - OPTICS
Information Patent Application
OPTICAL DEVICE AND OPTICAL TRANSMITTER
- Publication number 20100178064
- Publication date Jul 15, 2010
- FUJITSU LIMITED
- Takashi SHIRAISHI
- G02 - OPTICS
Information Patent Application
Polarization conversion device and polarization multiplexing modulator
- Publication number 20100142879
- Publication date Jun 10, 2010
- FUJITSU LIMITED
- Masaharu Doi
- G02 - OPTICS
Information Patent Application
Multilevel light intensity modulator
- Publication number 20100014801
- Publication date Jan 21, 2010
- FUJITSU LIMITED
- Masaharu Doi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Waveguide polarizer and optical waveguide device
- Publication number 20090190876
- Publication date Jul 30, 2009
- FUJITSU LIMITED
- Masaharu Doi
- G02 - OPTICS

Masaharu Doi

Person

Patents Grantslast 30 patents

Optical waveguide device

Optical waveguide device and method of manufacturing optical wavegu...

Optical waveguide device

Electro-optic device

Optical modulator

Electro-optic device

Optical modulator

Optical modulator, optical modulator module, and optical transmitte...

Optical modulator

Optical module and optical modulator

Optical modulator and optical module

Optical module

Optical modulator and optical module

Optical modulator that is formed using ferroelectric substrate

Optical module and optical fiber assembly

Optical modulator module that includes a plurality of optical modul...

Optical modulator

Optical transmission device

Optical waveguide device, manufacturing method therefor, optical mo...

Polarization multiplexing modulator

Optical device and optical transmitter

Optical waveguide device, manufacturing method therefor, optical mo...

Polarization conversion device and polarization multiplexing modulator

Multilevel light intensity modulator

Optical waveguide device

Waveguide type optical device and manufacturing method of the waveg...

Optical device

Optical module and optical switching device

Optical device

Optical device

Patents Applicationslast 30 patents

OPTICAL DEVICE AND OPTICAL COMMUNICATION APPARATUS

OPTICAL WAVEGUIDE DEVICE

OPTICAL WAVEGUIDE DEVICE

OPTICAL WAVEGUIDE DEVICE AND METHOD OF MANUFACTURING OPTICAL WAVEGU...

ELECTRO-OPTIC DEVICE

ELECTRO-OPTIC DEVICE

OPTICAL MODULATOR

OPTICAL MODULATOR

ELECTRO-OPTIC DEVICE

OPTICAL MODULATOR, OPTICAL MODULATOR MODULE, AND OPTICAL TRANSMITTE...

OPTICAL MODULATOR AND OPTICAL MODULE

OPTICAL MODULE AND OPTICAL MODULATOR

OPTICAL MODULATOR

OPTICAL MODULATOR THAT IS FORMED USING FERROELECTRIC SUBSTRATE

OPTICAL MODULATOR AND OPTICAL MODULE

OPTICAL MODULE

OPTICAL MODULATOR MODULE THAT INCLUDES A PLURALITY OF OPTICAL MODUL...

OPTICAL MODULATOR

OPTICAL MODULATOR THAT INCLUDES OPTICAL WAVEGUIDE FORMED IN FERROEL...

OPTICAL MODULE AND OPTICAL FIBER ASSEMBLY

OPTICAL MODULATOR THAT INCLUDES OPTICAL WAVEGUIDE FORMED IN FERROEL...

OPTICAL TRANSMISSION DEVICE

OPTICAL MODULATOR

OPTICAL WAVEGUIDE DEVICE, MANUFACTURING METHOD THEREFOR, OPTICAL MO...

POLARIZATION MULTIPLEXING MODULATOR

OPTICAL WAVEGUIDE DEVICE, MANUFACTURING METHOD THEREFOR, OPTICAL MO...

OPTICAL DEVICE AND OPTICAL TRANSMITTER

Polarization conversion device and polarization multiplexing modulator

Multilevel light intensity modulator

Waveguide polarizer and optical waveguide device