Tamotsu Akashi

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical module, transmission device, and operating point control me...
- Patent number 11,387,910
- Issue date Jul 12, 2022
- Fujitsu Optical Components Limited
- Shuichi Yasuda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical modulator including electro-optic polymer in grooves having...
- Patent number 11,112,625
- Issue date Sep 7, 2021
- Fujitsu Optical Components Limited
- Masaki Sugiyama
- G02 - OPTICS
Information Patent Grant
Optical communication system, optical transmitter, and optical rece...
- Patent number 9,450,680
- Issue date Sep 20, 2016
- Fujitsu Optical Components Limited
- Yoshio Sakai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmitter and control apparatus of optical modulator
- Patent number 9,450,677
- Issue date Sep 20, 2016
- Fujitsu Optical Components Limited
- Tamotsu Akashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical receiver and light receiving method
- Patent number 9,344,199
- Issue date May 17, 2016
- Fujitsu Optical Components Limited
- Kenichi Kawazoe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmitter and modulated optical signal generating method
- Patent number 9,130,680
- Issue date Sep 8, 2015
- Fujitsu Limited
- Yuichi Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical modulation device and control method in optical modulation...
- Patent number 9,063,355
- Issue date Jun 23, 2015
- Fujitsu Optical Components Limited
- Tamotsu Akashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical apparatus and optical transmission apparatus
- Patent number 8,243,372
- Issue date Aug 14, 2012
- Fujitsu Limited
- Hirofumi Aota
- G02 - OPTICS
Information Patent Grant
Wavelength selecting switch
- Patent number 8,165,470
- Issue date Apr 24, 2012
- Fujitsu Limited
- Hirofumi Aota
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical apparatus using a lens array
- Patent number 7,982,957
- Issue date Jul 19, 2011
- Fujitsu Limited
- Shinichi Takeuchi
- G02 - OPTICS
Information Patent Grant
Optical attenuator
- Patent number 7,948,670
- Issue date May 24, 2011
- Fujitsu Limited
- Tamotsu Akashi
- G02 - OPTICS
Information Patent Grant
Mirror, mirror unit, and optical switch
- Patent number 7,787,721
- Issue date Aug 31, 2010
- Fujitsu Limited
- Hirofumi Aota
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Mirror device and optical apparatus
- Patent number 7,706,049
- Issue date Apr 27, 2010
- Fujitsu Limited
- Hirofumi Aota
- G02 - OPTICS
Information Patent Grant
Optical switch
- Patent number 7,653,273
- Issue date Jan 26, 2010
- Fujitsu Limited
- Shinji Yamashita
- G02 - OPTICS
Information Patent Grant
Wavelength selective switch
- Patent number 7,636,503
- Issue date Dec 22, 2009
- Fujitsu Limited
- Tsuyoshi Yamamoto
- G02 - OPTICS
Information Patent Grant
Optical switch and method of adjusting optical switch
- Patent number 7,613,370
- Issue date Nov 3, 2009
- Fujitsu Limited
- Kohei Shibata
- G02 - OPTICS
Information Patent Grant
Optical switch and MEMS package
- Patent number 7,580,599
- Issue date Aug 25, 2009
- Fujitsu Limited
- Hirofumi Aota
- G02 - OPTICS
Information Patent Grant
Mirror controller for optical switch
- Patent number 7,466,915
- Issue date Dec 16, 2008
- Fujitsu Limited
- Yuji Ishii
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical switch, and apparatus and method for controlling optical sw...
- Patent number 7,447,399
- Issue date Nov 4, 2008
- Fujitsu Limited
- Hirofumi Aota
- G02 - OPTICS
Information Patent Grant
Collimator array and method for manufacturing the same
- Patent number 7,424,183
- Issue date Sep 9, 2008
- Fujitsu Limited
- Tamotsu Akashi
- G02 - OPTICS
Information Patent Grant
Wavelength selection device
- Patent number 7,340,128
- Issue date Mar 4, 2008
- Fujitsu Limited
- Kohei Shibata
- G01 - MEASURING TESTING
Information Patent Grant
Wavelength selective optical switch, and optical device provided wi...
- Patent number 7,330,617
- Issue date Feb 12, 2008
- Fujitsu Limited
- Hirofumi Aota
- G02 - OPTICS
Information Patent Grant
Optical switch
- Patent number 7,302,133
- Issue date Nov 27, 2007
- Fujitsu Limited
- Tamotsu Akashi
- G02 - OPTICS
Information Patent Grant
Optical switch and control method therefor
- Patent number 7,263,254
- Issue date Aug 28, 2007
- Fujitsu Limited
- Shinji Yamashita
- G02 - OPTICS
Information Patent Grant
Optical switch
- Patent number 7,233,716
- Issue date Jun 19, 2007
- Fujitsu Limited
- Tamotsu Akashi
- G02 - OPTICS
Information Patent Grant
Photonic switch
- Patent number 7,031,565
- Issue date Apr 18, 2006
- Fujitsu Limited
- Tamotsu Akashi
- G02 - OPTICS
Information Patent Grant
Photonic switch
- Patent number 6,925,222
- Issue date Aug 2, 2005
- Fujitsu Limited
- Tamotsu Akashi
- G02 - OPTICS
Information Patent Grant
Optical transmission system and terminal device applicable to the s...
- Patent number 6,901,222
- Issue date May 31, 2005
- Fujitsu Limited
- Shinji Yamashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Input-output optical system of spatially optical coupled type, and...
- Patent number 6,771,426
- Issue date Aug 3, 2004
- Fujitsu Limited
- Tsuyoshi Yamamoto
- G02 - OPTICS
Information Patent Grant
Optical receiver for burst transmission system
- Patent number 6,671,074
- Issue date Dec 30, 2003
- Fujitsu Limited
- Tamotsu Akashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL DEVICE, TRANSMITTER, AND TRANSCEIVER
- Publication number 20250172848
- Publication date May 29, 2025
- FUJITSU OPTICAL COMPONENTS LIMITED
- Tamotsu AKASHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL MODULATOR
- Publication number 20210318588
- Publication date Oct 14, 2021
- FUJITSU OPTICAL COMPONENTS LIMITED
- Kazuyuki WAKABAYASHI
- G02 - OPTICS
Information Patent Application
OPTICAL DEVICE
- Publication number 20210063778
- Publication date Mar 4, 2021
- FUJITSU OPTICAL COMPONENTS LIMITED
- Masaki Sugiyama
- G02 - OPTICS
Information Patent Application
OPTICAL MODULE, TRANSMISSION DEVICE, AND OPERATING POINT CONTROL ME...
- Publication number 20200381895
- Publication date Dec 3, 2020
- FUJITSU OPTICAL COMPONENTS LIMITED
- Shuichi Yasuda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL TRANSMITTER AND CONTROL APPARATUS OF OPTICAL MODULATOR
- Publication number 20150188639
- Publication date Jul 2, 2015
- FUJITSU OPTICAL COMPONENTS LIMITED
- Tamotsu AKASHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL RECEIVER AND LIGHT RECEIVING METHOD
- Publication number 20140334831
- Publication date Nov 13, 2014
- FUJITSU OPTICAL COMPONENTS LIMITED
- Kenichi KAWAZOE
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
OPTICAL COMMUNICATION SYSTEM, OPTICAL TRANSMITTER, AND OPTICAL RECE...
- Publication number 20140328588
- Publication date Nov 6, 2014
- FUJITSU OPTICAL COMPONENTS LIMITED
- Yoshio SAKAI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMITTER AND MODULATED OPTICAL SIGNAL GENERATING METHOD
- Publication number 20140212136
- Publication date Jul 31, 2014
- Fujitsu Limited
- Yuichi Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL MODULATION DEVICE AND CONTROL METHOD IN OPTICAL MODULATION...
- Publication number 20130156444
- Publication date Jun 20, 2013
- FUJITSU OPTICAL COMPONENTS LIMITED
- Tamotsu AKASHI
- G02 - OPTICS
Information Patent Application
Wavelength selecting switch
- Publication number 20100021167
- Publication date Jan 28, 2010
- FUJITSU LIMITED
- Hirofumi Aota
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical attenuator
- Publication number 20090323167
- Publication date Dec 31, 2009
- FUJITSU LIMITED
- Tamotsu Akashi
- G02 - OPTICS
Information Patent Application
OPTICAL APPARATUS AND OPTICAL TRANSMISSION APPARATUS
- Publication number 20090290223
- Publication date Nov 26, 2009
- FUJITSU LIMITED
- Hirofumi AOTA
- G02 - OPTICS
Information Patent Application
OPTICAL DEVICE AND WAVELENGTH SELECTIVE SWITCH
- Publication number 20090135488
- Publication date May 28, 2009
- FUJITSU LIMITED
- Hirofumi AOTA
- G02 - OPTICS
Information Patent Application
Wavelength selective switch
- Publication number 20090060416
- Publication date Mar 5, 2009
- Fujitsu Litmited
- Tsuyoshi Yamamoto
- G02 - OPTICS
Information Patent Application
Optical switch and MEMS package
- Publication number 20080317405
- Publication date Dec 25, 2008
- FUJITSU LIMITED
- Hirofumi Aota
- G02 - OPTICS
Information Patent Application
Optical switch and method of adjusting optical switch
- Publication number 20080240650
- Publication date Oct 2, 2008
- Fujitsu Limited
- Kohei Shibata
- G02 - OPTICS
Information Patent Application
MIRROR DEVICE AND OPTICAL APPARATUS
- Publication number 20080239441
- Publication date Oct 2, 2008
- FUJITSU LIMITED
- Hirofumi AOTA
- G02 - OPTICS
Information Patent Application
Micro-electro-mechanical systems device
- Publication number 20080211044
- Publication date Sep 4, 2008
- FUJITSU LIMITED
- Tamotsu Akashi
- B81 - MICRO-STRUCTURAL TECHNOLOGY
Information Patent Application
Optical apparatus using a lens array
- Publication number 20080013183
- Publication date Jan 17, 2008
- FUJITSU LIMITED
- Shinichi Takeuchi
- G02 - OPTICS
Information Patent Application
Electronic apparatus
- Publication number 20070290422
- Publication date Dec 20, 2007
- FUJITSU LIMITED
- Tamotsu Akashi
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
OPTICAL SWITCH
- Publication number 20070211988
- Publication date Sep 13, 2007
- FUJITSU LIMITED
- Tamotsu Akashi
- G02 - OPTICS
Information Patent Application
Wavelength selection device
- Publication number 20070153352
- Publication date Jul 5, 2007
- FUJITSU LIMITED
- Kohei Shibata
- G02 - OPTICS
Information Patent Application
Wavelength selective optical switch, and optical device provided wi...
- Publication number 20070077003
- Publication date Apr 5, 2007
- FUJITSU LIMITED
- Hirofumi Aota
- G02 - OPTICS
Information Patent Application
Optical switch
- Publication number 20060239608
- Publication date Oct 26, 2006
- FUJITSU LIMITED
- Tamotsu Akashi
- G02 - OPTICS
Information Patent Application
Optical switch and control method therefor
- Publication number 20060222290
- Publication date Oct 5, 2006
- FUJITSU LIMITED
- Shinji Yamashita
- G02 - OPTICS
Information Patent Application
Optical switch, and apparatus and method for controlling optical sw...
- Publication number 20060140536
- Publication date Jun 29, 2006
- FUJITSU LIMITED
- Hirofumi Aota
- G02 - OPTICS
Information Patent Application
Collimator array and method for manufacturing the same
- Publication number 20060093263
- Publication date May 4, 2006
- FUJITSU LIMITED
- Tamotsu Akashi
- G02 - OPTICS
Information Patent Application
Optical switch
- Publication number 20060093256
- Publication date May 4, 2006
- FUJITSU LIMITED
- Shinji Yamashita
- G02 - OPTICS
Information Patent Application
Mirror, mirror unit, and optical switch
- Publication number 20060093257
- Publication date May 4, 2006
- FUJITSU LIMITED
- Hirofumi Aota
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Mirror controller for optical switch
- Publication number 20060088317
- Publication date Apr 27, 2006
- FUJITSU LIMITED
- Yuji Ishii
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Tamotsu Akashi

Person

Patents Grantslast 30 patents

Optical module, transmission device, and operating point control me...

Optical modulator including electro-optic polymer in grooves having...

Optical communication system, optical transmitter, and optical rece...

Optical transmitter and control apparatus of optical modulator

Optical receiver and light receiving method

Optical transmitter and modulated optical signal generating method

Optical modulation device and control method in optical modulation...

Optical apparatus and optical transmission apparatus

Wavelength selecting switch

Optical apparatus using a lens array

Optical attenuator

Mirror, mirror unit, and optical switch

Mirror device and optical apparatus

Optical switch

Wavelength selective switch

Optical switch and method of adjusting optical switch

Optical switch and MEMS package

Mirror controller for optical switch

Optical switch, and apparatus and method for controlling optical sw...

Collimator array and method for manufacturing the same

Wavelength selection device

Wavelength selective optical switch, and optical device provided wi...

Optical switch

Optical switch and control method therefor

Optical switch

Photonic switch

Photonic switch

Optical transmission system and terminal device applicable to the s...

Input-output optical system of spatially optical coupled type, and...

Optical receiver for burst transmission system

Patents Applicationslast 30 patents

OPTICAL DEVICE, TRANSMITTER, AND TRANSCEIVER

OPTICAL MODULATOR

OPTICAL DEVICE

OPTICAL MODULE, TRANSMISSION DEVICE, AND OPERATING POINT CONTROL ME...

OPTICAL TRANSMITTER AND CONTROL APPARATUS OF OPTICAL MODULATOR

OPTICAL RECEIVER AND LIGHT RECEIVING METHOD

OPTICAL COMMUNICATION SYSTEM, OPTICAL TRANSMITTER, AND OPTICAL RECE...

OPTICAL TRANSMITTER AND MODULATED OPTICAL SIGNAL GENERATING METHOD

OPTICAL MODULATION DEVICE AND CONTROL METHOD IN OPTICAL MODULATION...

Wavelength selecting switch

Optical attenuator

OPTICAL APPARATUS AND OPTICAL TRANSMISSION APPARATUS

OPTICAL DEVICE AND WAVELENGTH SELECTIVE SWITCH

Wavelength selective switch

Optical switch and MEMS package

Optical switch and method of adjusting optical switch

MIRROR DEVICE AND OPTICAL APPARATUS

Micro-electro-mechanical systems device

Optical apparatus using a lens array

Electronic apparatus

OPTICAL SWITCH

Wavelength selection device

Wavelength selective optical switch, and optical device provided wi...

Optical switch

Optical switch and control method therefor

Optical switch, and apparatus and method for controlling optical sw...

Collimator array and method for manufacturing the same

Optical switch

Mirror, mirror unit, and optical switch

Mirror controller for optical switch