Tadashi Fukuzawa

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical link module, optical interconnection method, information pr...
- Patent number 7,903,911
- Issue date Mar 8, 2011
- International Business Machines Corporation
- Kazuo Sekiya
- G02 - OPTICS
Information Patent Grant
Optical link module, optical interconnection method, information pr...
- Patent number 7,489,840
- Issue date Feb 10, 2009
- International Business Machines Corporation
- Kazuo Sekiya
- G02 - OPTICS
Information Patent Grant
Optical transmission substrate, method for manufacturing optical tr...
- Patent number 7,421,858
- Issue date Sep 9, 2008
- International Business Machines Corporation
- Tadashi Fukuzawa
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Optical link module, optical interconnection method, information pr...
- Patent number 7,373,044
- Issue date May 13, 2008
- International Business Machines Corporation
- Kazuo Sekiya
- G02 - OPTICS
Information Patent Grant
Optical transmission substrate, method for manufacturing optical tr...
- Patent number 7,212,713
- Issue date May 1, 2007
- International Business Machines Corporation
- Tadashi Fukuzawa
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Optical link module, optical interconnection method, information pr...
- Patent number 6,947,671
- Issue date Sep 20, 2005
- International Business Machines Corp.
- Kazuo Sekiya
- G02 - OPTICS
Information Patent Grant
Energy-efficient full-color liquid crystal display
- Patent number 6,295,106
- Issue date Sep 25, 2001
- International Business Machines Corporation
- Tadashi Fukuzawa
- G02 - OPTICS
Information Patent Grant
Liquid crystal display device having red, green, and blue fluoresce...
- Patent number 6,249,328
- Issue date Jun 19, 2001
- International Business Machines Corporation
- Tadashi Fukuzawa
- G02 - OPTICS
Information Patent Grant
Flare-prevention optical system, flare-prevention method, and flyin...
- Patent number 5,638,207
- Issue date Jun 10, 1997
- International Business Machines Corporation
- Tadashi Fukuzawa
- G02 - OPTICS
Information Patent Grant
Nonlinear optical device and method of manufacturing same
- Patent number 5,547,705
- Issue date Aug 20, 1996
- International Business Machine Corporation
- Tadashi Fukuzawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method and apparatus for measuring the flying height of a magnetic...
- Patent number 5,502,565
- Issue date Mar 26, 1996
- International Business Machines Corporation
- Tadashi Fukuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Head flying height measuring apparatus
- Patent number 5,475,488
- Issue date Dec 12, 1995
- Tadashi Fukuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Coupled quantum well tunable laser
- Patent number 5,287,377
- Issue date Feb 15, 1994
- International Business Machines Corporation
- Tadashi Fukuzawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Fabrication method for quantum devices in compound semiconductor la...
- Patent number 5,281,543
- Issue date Jan 25, 1994
- International Business Machines Corporation
- Tadashi Fukuzawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Fabrication of quantum devices in compound semiconductor layers and...
- Patent number 5,170,226
- Issue date Dec 8, 1992
- International Business Machines Corporation
- Tadashi Fukuzawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical beam deflector
- Patent number 5,157,543
- Issue date Oct 20, 1992
- International Business Machines Corporation
- Tadashi Fukuzawa
- G02 - OPTICS
Information Patent Grant
Optical quantum interference device/optical computer and method of...
- Patent number 5,091,980
- Issue date Feb 25, 1992
- Hitachi, Ltd.
- Kensuke Ogawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor device
- Patent number 5,001,536
- Issue date Mar 19, 1991
- Hitachi, Ltd.
- Tadashi Fukuzawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical quantum interference device and method of modulating light...
- Patent number 4,957,337
- Issue date Sep 18, 1990
- Hitachi, Ltd.
- Kensuke Ogawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor optical device
- Patent number 4,933,728
- Issue date Jun 12, 1990
- Hitachi, Ltd.
- Tadashi Fukuzawa
- 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 laser having quantum well active region doped with im...
- Patent number 4,881,238
- Issue date Nov 14, 1989
- Hitachi, Ltd.
- Naoki Chinone
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical modulating device utilizing polariton substance
- Patent number 4,861,130
- Issue date Aug 29, 1989
- Hitachi, Ltd.
- Toshio Katsuyama
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical modulator
- Patent number 4,847,573
- Issue date Jul 11, 1989
- Hitachi, Ltd.
- Tadashi Fukuzawa
- 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
Semiconductor laser device and method of fabricating the same
- Patent number 4,827,483
- Issue date May 2, 1989
- Hitachi, Ltd.
- Tadashi Fukuzawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Waveguide optical switches
- Patent number 4,784,451
- Issue date Nov 15, 1988
- Hitachi, Ltd.
- Hitoshi Nakamura
- G02 - OPTICS
Information Patent Grant
Fabrication process of semiconductor lasers
- Patent number 4,783,425
- Issue date Nov 8, 1988
- Hitachi, Ltd.
- Tadashi Fukuzawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Distributed-feedback semiconductor laser device
- Patent number 4,775,980
- Issue date Oct 4, 1988
- Hitachi, Ltd.
- Naoki Chinone
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High speed switching field effect transistor
- Patent number 4,772,925
- Issue date Sep 20, 1988
- Hitachi, Ltd.
- Tadashi Fukuzawa
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL LINK MODULE, OPTICAL INTERCONNECTION METHOD, INFORMATION PR...
- Publication number 20090148099
- Publication date Jun 11, 2009
- International Business Machines Corporation
- KAZUO SEKIYA
- G02 - OPTICS
Information Patent Application
OPTICAL TRANSMISSION SUBSTRATE, METHOD FOR MANUFACTURING OPTICAL TR...
- Publication number 20070137254
- Publication date Jun 21, 2007
- Tadashi Fukuzawa
- G02 - OPTICS
Information Patent Application
Optical link module, optical interconnection method, information pr...
- Publication number 20060002713
- Publication date Jan 5, 2006
- International Business Machines Corporation
- Kazuo Sekiya
- G02 - OPTICS
Information Patent Application
Optical link module, optical interconnection method, information pr...
- Publication number 20050284180
- Publication date Dec 29, 2005
- International Business Machines Corporation
- Kazuo Sekiya
- G02 - OPTICS
Information Patent Application
Optical transmission substrate, method for manufacturing optical tr...
- Publication number 20050117833
- Publication date Jun 2, 2005
- International Business Machines Corporation
- Tadashi Fukuzawa
- G02 - OPTICS
Information Patent Application
Optical link module, optical interconnection method, information pr...
- Publication number 20040258354
- Publication date Dec 23, 2004
- International Business Machines Corporation
- Kazuo Sekiya
- G02 - OPTICS

Tadashi Fukuzawa

Person

Patents Grantslast 30 patents

Optical link module, optical interconnection method, information pr...

Optical link module, optical interconnection method, information pr...

Optical transmission substrate, method for manufacturing optical tr...

Optical link module, optical interconnection method, information pr...

Optical transmission substrate, method for manufacturing optical tr...

Optical link module, optical interconnection method, information pr...

Energy-efficient full-color liquid crystal display

Liquid crystal display device having red, green, and blue fluoresce...

Flare-prevention optical system, flare-prevention method, and flyin...

Nonlinear optical device and method of manufacturing same

Method and apparatus for measuring the flying height of a magnetic...

Head flying height measuring apparatus

Coupled quantum well tunable laser

Fabrication method for quantum devices in compound semiconductor la...

Fabrication of quantum devices in compound semiconductor layers and...

Optical beam deflector

Optical quantum interference device/optical computer and method of...

Semiconductor device

Optical quantum interference device and method of modulating light...

Semiconductor optical device

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

Semiconductor laser having quantum well active region doped with im...

Optical modulating device utilizing polariton substance

Optical modulator

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

Semiconductor laser device and method of fabricating the same

Waveguide optical switches

Fabrication process of semiconductor lasers

Distributed-feedback semiconductor laser device

High speed switching field effect transistor

Patents Applicationslast 30 patents

OPTICAL LINK MODULE, OPTICAL INTERCONNECTION METHOD, INFORMATION PR...

OPTICAL TRANSMISSION SUBSTRATE, METHOD FOR MANUFACTURING OPTICAL TR...

Optical link module, optical interconnection method, information pr...

Optical link module, optical interconnection method, information pr...

Optical transmission substrate, method for manufacturing optical tr...

Optical link module, optical interconnection method, information pr...