Yuichi Matsushima

Person

Kamifukuoka-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Wavelength filter
- Patent number 6,327,404
- Issue date Dec 4, 2001
- KDD Corporation
- Masayoshi Horita
- G02 - OPTICS
Information Patent Grant
Semiconductor memory operating electrically and optically, retainin...
- Patent number 6,147,901
- Issue date Nov 14, 2000
- KDD Corporation
- Haruhisa Sakata
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical processing device
- Patent number 6,091,536
- Issue date Jul 18, 2000
- KDD Corporation
- Masashi Usami
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Coupled waveguide structure
- Patent number 6,084,997
- Issue date Jul 4, 2000
- Kokusai Denshin Denwa Kabushiki Kaisha
- Katsuyuki Utaka
- G02 - OPTICS
Information Patent Grant
Functional semiconductor element with avalanche multiplication
- Patent number 5,952,683
- Issue date Sep 14, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Haruhisa Sakata
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical short pulse reshaping device
- Patent number 5,912,911
- Issue date Jun 15, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masashi Usami
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical add/drop multiplexer device
- Patent number 5,859,941
- Issue date Jan 12, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masayoshi Horita
- G02 - OPTICS
Information Patent Grant
Reshaping device for optical short pulses
- Patent number 5,805,327
- Issue date Sep 8, 1998
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masashi Usami
- G02 - OPTICS
Information Patent Grant
Optical pulse generator
- Patent number 5,798,856
- Issue date Aug 25, 1998
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masatoshi Suzuki
- G02 - OPTICS
Information Patent Grant
Optical device
- Patent number 5,729,378
- Issue date Mar 17, 1998
- Kokusai Densin Denwa Kabusiki Kaisha
- Hideaki Tanaka
- G02 - OPTICS
Information Patent Grant
Optical functional semiconductor element
- Patent number 5,663,572
- Issue date Sep 2, 1997
- Kokusai Denshin Denwa Kabushiki Kaisha
- Haruhisa Sakata
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical short pulse generating device
- Patent number 5,434,693
- Issue date Jul 18, 1995
- Kokusai Denshin Denwa Kabushiki Kaisha
- Hideaki Tanaka
- G02 - OPTICS
Information Patent Grant
Optical waveform shaping device for peforming waveform equalization...
- Patent number 5,401,957
- Issue date Mar 28, 1995
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masatoshi Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical pulse generator
- Patent number 5,394,260
- Issue date Feb 28, 1995
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masatoshi Suzuki
- G02 - OPTICS
Information Patent Grant
Multiple quantum well structure and semiconductor device using the...
- Patent number 5,392,306
- Issue date Feb 21, 1995
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masashi Usami
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical modulator
- Patent number 5,359,679
- Issue date Oct 25, 1994
- Kokusai Denshin Denwa Kabushiki Kaisha
- Hideaki Tanaka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical Mach-Zehnder type logic element which performs an XOR opera...
- Patent number 5,315,422
- Issue date May 24, 1994
- Kokusai Denshin Denwa Kabushiki Kaisha
- Katsuyuki Utaka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor device with strained-layer superlattice
- Patent number 5,306,924
- Issue date Apr 26, 1994
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masashi Usami
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Tunable semiconductor laser
- Patent number 5,187,717
- Issue date Feb 16, 1993
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masayoshi Horita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Avalanche photo diode
- Patent number 5,132,747
- Issue date Jul 21, 1992
- Kokusai Denshin Denwa Kabushiki Kaisha
- Yuichi Matsushima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Quantum well structure and semiconductor device using the same
- Patent number 5,122,844
- Issue date Jun 16, 1992
- Kokusai Denshin Denwa Kabushiki Kaisha
- Shigeyuki Akiba
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Pn junction optical modulating device having a buffer layer with sm...
- Patent number 4,991,921
- Issue date Feb 12, 1991
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masatoshi Suzuki
- G02 - OPTICS
Information Patent Grant
Distributed feedback semiconductor laser device and current injection
- Patent number 4,932,034
- Issue date Jun 5, 1990
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masashi Usami
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Infrared emitting device with dislocation free layer
- Patent number 4,918,496
- Issue date Apr 17, 1990
- Kokusai Denshin Denwa Kabushiki Kaisha
- Yuichi Matsushima
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor optical amplifying element
- Patent number 4,897,845
- Issue date Jan 30, 1990
- Kokusai Denshin Denwa Kabushiki Kaisha
- Katsuyuki Utaka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Filter bag for microbiological examination
- Patent number 4,892,832
- Issue date Jan 9, 1990
- Toppan Printing Co., Ltd.
- Kiyotaka Omote
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Variable-waveguide optical branching filter
- Patent number 4,874,216
- Issue date Oct 17, 1989
- Kokusai Denshin Denwa Kabushiki Kaisha
- Katsuyuki Utaka
- G02 - OPTICS
Information Patent Grant
Wavelength tunable semiconductor laser with narrow band-pass active...
- Patent number 4,852,108
- Issue date Jul 25, 1989
- Kokusai Denshin Denwa Kabushiki Kaisha
- Katsuyuki Utaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for manufacturing diffraction grating
- Patent number 4,826,291
- Issue date May 2, 1989
- Kokusai Denshin Denwa Kabushiki Kaisha
- Katsuyuki Utaka
- G02 - OPTICS
Information Patent Grant
Distributed feedback semiconductor laser with monitor
- Patent number 4,815,090
- Issue date Mar 21, 1989
- Kokusai Denshin Denwa Kabushiki Kaisha
- Masashi Usami
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Optical device
- Publication number 20020136494
- Publication date Sep 26, 2002
- Tomonori Yazaki
- G02 - OPTICS

Yuichi Matsushima

Person

Patents Grantslast 30 patents

Wavelength filter

Semiconductor memory operating electrically and optically, retainin...

Optical processing device

Coupled waveguide structure

Functional semiconductor element with avalanche multiplication

Optical short pulse reshaping device

Optical add/drop multiplexer device

Reshaping device for optical short pulses

Optical pulse generator

Optical device

Optical functional semiconductor element

Optical short pulse generating device

Optical waveform shaping device for peforming waveform equalization...

Optical pulse generator

Multiple quantum well structure and semiconductor device using the...

Optical modulator

Optical Mach-Zehnder type logic element which performs an XOR opera...

Semiconductor device with strained-layer superlattice

Tunable semiconductor laser

Avalanche photo diode

Quantum well structure and semiconductor device using the same

Pn junction optical modulating device having a buffer layer with sm...

Distributed feedback semiconductor laser device and current injection

Infrared emitting device with dislocation free layer

Semiconductor optical amplifying element

Filter bag for microbiological examination

Variable-waveguide optical branching filter

Wavelength tunable semiconductor laser with narrow band-pass active...

Method for manufacturing diffraction grating

Distributed feedback semiconductor laser with monitor

Patents Applicationslast 30 patents

Optical device