Toshitaka Aoyagi

Person

Itami, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical waveguide and semiconductor optical element
- Patent number 7,733,934
- Issue date Jun 8, 2010
- Mitsubishi Electric Corporation
- Takeshi Yamatoya
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photodiode array configured to increase electrical output power and...
- Patent number 7,723,666
- Issue date May 25, 2010
- Mitsubishi Electric Corporation
- Tsutomu Nagatsuka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical wavelength converter
- Patent number 7,365,904
- Issue date Apr 29, 2008
- Mitsubishi Denki Kabushiki Kaisha
- Keisuke Matsumoto
- G02 - OPTICS
Information Patent Grant
Semiconductor laser
- Patent number 7,277,465
- Issue date Oct 2, 2007
- Mitsubishi Denki Kabushiki Kaisha
- Toshitaka Aoyagi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser device
- Patent number 6,788,725
- Issue date Sep 7, 2004
- Mitsubishi Denki Kabushiki Kaisha
- Toshitaka Aoyagi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical module and method of fabricating optical module
- Patent number 5,909,523
- Issue date Jun 1, 1999
- Mitsubishi Denki Kabushiki Kaisha
- Go Sakaino
- G02 - OPTICS
Information Patent Grant
Method of making optical semi-conductor device
- Patent number 5,906,753
- Issue date May 25, 1999
- Mitsubishi Denki Kabushiki Kaisha
- Toshitaka Aoyagi
- G02 - OPTICS
Information Patent Grant
Optical semiconductor device
- Patent number 5,790,737
- Issue date Aug 4, 1998
- Mitsubishi Denki Kabushiki Kaisha
- Toshitaka Aoyagi
- G02 - OPTICS
Information Patent Grant
Semiconductor laser device and optical disc apparatus provided with...
- Patent number 5,638,391
- Issue date Jun 10, 1997
- Mitsubishi Denki Kabushiki Kaisha
- Akihiro Shima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical modulator
- Patent number 5,550,855
- Issue date Aug 27, 1996
- Mitsubishi Denki Kabushiki Kaisha
- Toshitaka Aoyagi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of manufacturing semi conductor device mounted on a heat sink
- Patent number 5,332,695
- Issue date Jul 26, 1994
- Mitsubishi Denki Kabushiki Kaisha
- Kimio Shigihara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser structure having a non-reflection film
- Patent number 5,282,219
- Issue date Jan 25, 1994
- Mitsubishi Denki Kabushiki Kaisha
- Kimio Shigihara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device mounted on a heat sink with an intervening amo...
- Patent number 5,247,203
- Issue date Sep 21, 1993
- Mitsubishi Denki Kabushiki Kaisha
- Kimio Shigihara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser
- Patent number 5,214,663
- Issue date May 25, 1993
- Mitsubishi Denki Kabushiki Kaisha
- Syoichi Kakimoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for producing a quantum well structure
- Patent number 5,185,287
- Issue date Feb 9, 1993
- Mitsubishi Denki Kabushiki Kaisha
- Toshitaka Aoyagi
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of coating facet of semiconductor optical element
- Patent number 5,185,290
- Issue date Feb 9, 1993
- Mitsubishi Denki Kabushiki Kaisha
- Toshitaka Aoyagi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser device
- Patent number 5,177,749
- Issue date Jan 5, 1993
- Mitsubishi Denki Kabushiki Kaisha
- Kimio Shigihara
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical fiber light-amplifier system
- Patent number 5,170,458
- Issue date Dec 8, 1992
- Mitsubishi Denki Kabushiki Kaisha
- Toshitaka Aoyagi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser device
- Patent number 5,161,164
- Issue date Nov 3, 1992
- Mitsubishi Deni Kabushiki Kaisha
- Kimio Shigihara
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Wavelength-tunable distributed Bragg reflector semiconductor laser
- Patent number 5,157,681
- Issue date Oct 20, 1992
- Mitsubishi Denki Kabushiki Kaisha
- Toshitaka Aoyagi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser device
- Patent number 5,048,037
- Issue date Sep 10, 1991
- Mitsubishi Denki Kabushiki Kaisha
- Satoshi Arimoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser device
- Patent number 5,025,450
- Issue date Jun 18, 1991
- Mitsubishi Denki Kabushiki Kaisha
- Toshitaka Aoyagi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of producing a primary diffraction grating
- Patent number 4,988,404
- Issue date Jan 29, 1991
- Mitsubishi Denki Kabushiki Kaisha
- Toshitaka Aoyagi
- G02 - OPTICS
Information Patent Grant
Laser device with high oscillation efficiency
- Patent number 4,924,474
- Issue date May 8, 1990
- Mitsubishi Denki Kabushiki Kaisha
- Shigenori Yagi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser
- Patent number 4,868,837
- Issue date Sep 19, 1989
- Mitsubishi Denki Kabushiki Kaisha
- Yoshito Seiwa
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR LASER AND METHOD FOR MANUFACTURING THE SAME
- Publication number 20090225804
- Publication date Sep 10, 2009
- Mitsubishi Electric Corporation
- Yoshifumi Sasahata
- B82 - NANO-TECHNOLOGY
Information Patent Application
OPTICAL WAVEGUIDE, SEMICONDUCTOR OPTICAL INTEGRATED ELEMENT, AND ME...
- Publication number 20080037605
- Publication date Feb 14, 2008
- Mitsubishi Electric Corporation
- Takeshi Yamatoya
- B82 - NANO-TECHNOLOGY
Information Patent Application
Optical wavelength converter
- Publication number 20060291038
- Publication date Dec 28, 2006
- Mitsubishi Denki Kabushiki Kaisha
- Keisuke Matsumoto
- G02 - OPTICS
Information Patent Application
Ridge type distributed feedback semiconductor laser
- Publication number 20050123018
- Publication date Jun 9, 2005
- Mitsubishi Denki Kabushiki Kaisha
- Kazuhisa Takagi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor laser device
- Publication number 20050025210
- Publication date Feb 3, 2005
- Mitsubishi Denki Kabushiki Kaisha
- Toshitaka Aoyagi
- B82 - NANO-TECHNOLOGY
Information Patent Application
Semiconductor laser
- Publication number 20040057484
- Publication date Mar 25, 2004
- Mitsubishi Denki Kabushiki Kaisha
- Toshitaka Aoyagi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor laser device
- Publication number 20030091080
- Publication date May 15, 2003
- Mitsubishi Denki Kabushiki Kaisha
- Toshitaka Aoyagi
- B82 - NANO-TECHNOLOGY

Toshitaka Aoyagi

Person

Patents Grantslast 30 patents

Optical waveguide and semiconductor optical element

Photodiode array configured to increase electrical output power and...

Optical wavelength converter

Semiconductor laser

Semiconductor laser device

Optical module and method of fabricating optical module

Method of making optical semi-conductor device

Optical semiconductor device

Semiconductor laser device and optical disc apparatus provided with...

Optical modulator

Method of manufacturing semi conductor device mounted on a heat sink

Semiconductor laser structure having a non-reflection film

Semiconductor device mounted on a heat sink with an intervening amo...

Semiconductor laser

Method for producing a quantum well structure

Method of coating facet of semiconductor optical element

Semiconductor laser device

Optical fiber light-amplifier system

Semiconductor laser device

Wavelength-tunable distributed Bragg reflector semiconductor laser

Semiconductor laser device

Semiconductor laser device

Method of producing a primary diffraction grating

Laser device with high oscillation efficiency

Semiconductor laser

Patents Applicationslast 30 patents

SEMICONDUCTOR LASER AND METHOD FOR MANUFACTURING THE SAME

OPTICAL WAVEGUIDE, SEMICONDUCTOR OPTICAL INTEGRATED ELEMENT, AND ME...

Optical wavelength converter

Ridge type distributed feedback semiconductor laser

Semiconductor laser device

Semiconductor laser

Semiconductor laser device