Tsukuru Ohtoshi

Person

Hanno-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Multi-wavelength light emitting device
- Patent number 8,449,160
- Issue date May 28, 2013
- Hitachi, Ltd.
- Kenichi Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Organic luminescent display device
- Patent number 8,390,549
- Issue date Mar 5, 2013
- Hitachi Displays, Ltd.
- Shingo Ishihara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical measurement instrument for living body semiconductor laser...
- Patent number 8,369,913
- Issue date Feb 5, 2013
- Hitachi, Ltd.
- Etsuko Nomoto
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor laser device
- Patent number 7,738,521
- Issue date Jun 15, 2010
- Opnext Japan, Inc.
- Shin'ichi Nakatsuka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser diode device
- Patent number 7,668,217
- Issue date Feb 23, 2010
- Hitachi, Ltd.
- Katsumi Kishino
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser diode
- Patent number 7,542,498
- Issue date Jun 2, 2009
- OpNext Japan, Inc.
- Etsuko Nomoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor optical devices and optical modules
- Patent number 7,038,233
- Issue date May 2, 2006
- Hitachi, Ltd.
- Tomonobu Tsuchiya
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical information processing equipment and semiconductor light em...
- Patent number 6,639,925
- Issue date Oct 28, 2003
- Hitachi, Inc.
- Atsuko Niwa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Burying type avalanche photodiode and fabrication method thereof
- Patent number 6,635,908
- Issue date Oct 21, 2003
- Hitachi, Ltd.
- Shigehisa Tanaka
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Optical information processor and semiconductor light emitting devi...
- Patent number 6,542,526
- Issue date Apr 1, 2003
- Hitachi, Ltd.
- Atsuko Niwa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Superlattice avalanche photodiode (APD)
- Patent number 5,543,629
- Issue date Aug 6, 1996
- Hitachi, Ltd.
- Hitoshi Nakamura
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor optical device having a heterointerface therein
- Patent number 5,324,959
- Issue date Jun 28, 1994
- Hitachi, Ltd.
- Hitoshi Nakamura
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor light-emitting device with cadmium zinc selenide layer
- Patent number 5,299,217
- Issue date Mar 29, 1994
- Hitachi, Ltd.
- Masahito Migita
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor laser device with plural active layers and changing o...
- Patent number 5,177,758
- Issue date Jan 5, 1993
- Hitachi, Ltd.
- Akihiko Oka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor laser device suitable for optical communications syst...
- Patent number 5,170,404
- Issue date Dec 8, 1992
- Hitachi, Ltd.
- Tsukuru Ohtoshi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor laser
- Patent number 5,136,601
- Issue date Aug 4, 1992
- Hitachi, Ltd.
- Takashi Kajimura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor optical device
- Patent number 5,132,981
- Issue date Jul 21, 1992
- Hitachi, Ltd.
- Kazuhisa Uomi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor laser device capable of controlling wavelength shift
- Patent number 5,119,393
- Issue date Jun 2, 1992
- Hitachi, Ltd.
- Akihiko Oka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor laser device
- Patent number 5,073,892
- Issue date Dec 17, 1991
- Hitachi, Ltd.
- Kazuhisa Uomi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor optical device
- Patent number 5,042,049
- Issue date Aug 20, 1991
- Hitachi, Ltd.
- Tsukuru Ohtoshi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor laser having a multiple quantum well structure doped...
- Patent number 4,881,235
- Issue date Nov 14, 1989
- Hitachi, Ltd.
- Naoki Chinone
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor device having a quantum wire and a method of producin...
- Patent number 4,835,578
- Issue date May 30, 1989
- Hitachi, Ltd.
- Tsukuru Ohtoshi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
High output semiconductor laser device utilizing a mesa-stripe opti...
- Patent number 4,602,371
- Issue date Jul 22, 1986
- Hitachi, Ltd.
- Toshihiro Kawano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser device
- Patent number 4,563,764
- Issue date Jan 7, 1986
- Hitachi, Ltd.
- Takao Kuroda
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
NITRIDE SEMICONDUCTOR DIODE
- Publication number 20160013327
- Publication date Jan 14, 2016
- Hitachi, Ltd
- Akihisa TERANO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Multi-Wavelength Light Emitting Device
- Publication number 20110063871
- Publication date Mar 17, 2011
- Hitachi, Ltd
- Kenichi TANAKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ORGANIC LUMINESCENT DISPLAY DEVICE
- Publication number 20100164842
- Publication date Jul 1, 2010
- Hitachi Displays, Ltd.
- Shingo ISHIHARA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR LASERS
- Publication number 20100111126
- Publication date May 6, 2010
- Junichiro Shimizu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Optical measurement instrument for living body semiconductor laser...
- Publication number 20080234560
- Publication date Sep 25, 2008
- Hitachi, Ltd.
- Etsuko Nomoto
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Semiconductor laser diode device
- Publication number 20080049803
- Publication date Feb 28, 2008
- Hitachi, Ltd.
- Katsumi Kishino
- B82 - NANO-TECHNOLOGY
Information Patent Application
Semiconductor laser device
- Publication number 20070121693
- Publication date May 31, 2007
- Shin'ichi Nakatsuka
- B82 - NANO-TECHNOLOGY
Information Patent Application
Semiconductor laser diode
- Publication number 20060187987
- Publication date Aug 24, 2006
- Opnext Japan, Inc.
- Etsuko Nomoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor optical devices and optical modules
- Publication number 20050127384
- Publication date Jun 16, 2005
- Hitachi., Ltd.
- Tomonobu Tsuchiya
- B82 - NANO-TECHNOLOGY
Information Patent Application
Avalanche photo-diode and fabrication method thereof
- Publication number 20020117697
- Publication date Aug 29, 2002
- Shigehisa Tanaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Optical information processing equipment and semiconductor light em...
- Publication number 20020031153
- Publication date Mar 14, 2002
- Atsuko Niwa
- B82 - NANO-TECHNOLOGY

Tsukuru Ohtoshi

Person

Patents Grantslast 30 patents

Multi-wavelength light emitting device

Organic luminescent display device

Optical measurement instrument for living body semiconductor laser...

Semiconductor laser device

Semiconductor laser diode device

Semiconductor laser diode

Semiconductor optical devices and optical modules

Optical information processing equipment and semiconductor light em...

Burying type avalanche photodiode and fabrication method thereof

Optical information processor and semiconductor light emitting devi...

Superlattice avalanche photodiode (APD)

Semiconductor optical device having a heterointerface therein

Semiconductor light-emitting device with cadmium zinc selenide layer

Semiconductor laser device with plural active layers and changing o...

Semiconductor laser device suitable for optical communications syst...

Semiconductor laser

Semiconductor optical device

Semiconductor laser device capable of controlling wavelength shift

Semiconductor laser device

Semiconductor optical device

Semiconductor laser having a multiple quantum well structure doped...

Semiconductor device having a quantum wire and a method of producin...

High output semiconductor laser device utilizing a mesa-stripe opti...

Semiconductor laser device

Patents Applicationslast 30 patents

NITRIDE SEMICONDUCTOR DIODE

Multi-Wavelength Light Emitting Device

ORGANIC LUMINESCENT DISPLAY DEVICE

SEMICONDUCTOR LASERS

Optical measurement instrument for living body semiconductor laser...

Semiconductor laser diode device

Semiconductor laser device

Semiconductor laser diode

Semiconductor optical devices and optical modules

Avalanche photo-diode and fabrication method thereof

Optical information processing equipment and semiconductor light em...