Hiroyoshi Matsumura

Person

Iruma, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing GRIN lens
- Patent number 7,921,672
- Issue date Apr 12, 2011
- Toyo Glass Co., Ltd.
- Hiroyoshi Matsumura
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical fiber coupling part and manufacturing method thereof
- Patent number 7,603,008
- Issue date Oct 13, 2009
- Toyo Glass Co., Ltd.
- Hiroyoshi Matsumura
- G02 - OPTICS
Information Patent Grant
Fiber optic collimator system, fiber optic collimator array, and ma...
- Patent number 7,357,005
- Issue date Apr 15, 2008
- Toyo Glass Co., Ltd.
- Hiroyoshi Matsumura
- G02 - OPTICS
Information Patent Grant
Optical fiber coupling part
- Patent number 7,346,237
- Issue date Mar 18, 2008
- Toyo Glass Co., Ltd.
- Hiroyoshi Matsumura
- G02 - OPTICS
Information Patent Grant
Electric appliance, printed circuit board, remained life estimation...
- Patent number 5,867,809
- Issue date Feb 2, 1999
- Hitachi, Ltd.
- Tasao Soga
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical device diffraction gratings and a photomask for use in the...
- Patent number 5,340,637
- Issue date Aug 23, 1994
- Hitachi, Ltd.
- Makoto Okai
- G02 - OPTICS
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 devices
- Patent number 4,905,057
- Issue date Feb 27, 1990
- Hitachi, Ltd.
- Akio Ohishi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical device
- Patent number 4,900,134
- Issue date Feb 13, 1990
- Hitachi, Ltd.
- Hiroaki Inoue
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical devices and optical integrated circuits
- Patent number 4,887,877
- Issue date Dec 19, 1989
- Hitachi, Ltd.
- Hiroaki Inoue
- G02 - OPTICS
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 laser devices
- Patent number 4,841,536
- Issue date Jun 20, 1989
- Hitachi, Ltd.
- Aiko Ohishi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photo semiconductor device having a multi-quantum well structure
- Patent number 4,840,446
- Issue date Jun 20, 1989
- Hitachi Cable, Ltd.
- Hitoshi Nakamura
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor device with high speed signal transmission arrangemen...
- Patent number 4,838,633
- Issue date Jun 13, 1989
- Hitachi, Ltd.
- Toshio Katsuyama
- G02 - OPTICS
Information Patent Grant
Electron gas hole gas tunneling transistor device
- Patent number 4,835,581
- Issue date May 30, 1989
- Hitachi, Ltd.
- Takao Kuroda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical switch
- Patent number 4,832,430
- Issue date May 23, 1989
- Hitachi, Ltd.
- Kunio Tada
- G02 - OPTICS
Information Patent Grant
Polarization plane maintaining optical fiber fabricating method
- Patent number 4,828,592
- Issue date May 9, 1989
- Hitachi, Ltd.
- Hiroyoshi Matsumura
- G02 - OPTICS
Information Patent Grant
Semiconductor device
- Patent number 4,819,036
- Issue date Apr 4, 1989
- Hitachi, Ltd.
- Takao Kuroda
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical switch including bypass waveguide
- Patent number 4,813,757
- Issue date Mar 21, 1989
- Hitachi, Ltd.
- Shinji Sakano
- G02 - OPTICS
Information Patent Grant
Semiconductor device and method of manufacturing the same
- Patent number 4,814,838
- Issue date Mar 21, 1989
- Hitachi, Ltd.
- Takao Kuroda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser devices
- Patent number 4,803,692
- Issue date Feb 7, 1989
- Hitachi, Ltd.
- Shinji Sakano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fabrication method and equipment for diffraction gratings
- Patent number 4,792,197
- Issue date Dec 20, 1988
- Hitachi, Ltd.
- Hiroaki Inoue
- G02 - OPTICS
Information Patent Grant
Method of growing heteroepitaxial InP on Si using Sn substrate impl...
- Patent number 4,766,092
- Issue date Aug 23, 1988
- Hitachi, Ltd.
- Takao Kuroda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical switching device utilizing multiple quantum well structures...
- Patent number 4,737,003
- Issue date Apr 12, 1988
- Hitachi, Ltd.
- Hiroyoshi Matsumura
- G02 - OPTICS
Information Patent Grant
Optical waveguide having a silicon oxi-nitride layer
- Patent number 4,737,015
- Issue date Apr 12, 1988
- Hitachi, Ltd. Hitachi Cabel
- Koji Ishida
- G02 - OPTICS
Information Patent Grant
Member for infrared ray transmission
- Patent number 4,730,896
- Issue date Mar 15, 1988
- Hitachi, Ltd.
- Toshio Katsuyama
- G02 - OPTICS
Information Patent Grant
Distributed feedback semiconductor laser
- Patent number 4,720,836
- Issue date Jan 19, 1988
- Hitachi, Ltd.
- Tadashi Fukuzawa
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical integrated circuit
- Patent number 4,693,543
- Issue date Sep 15, 1987
- Hitachi, Ltd.
- Hiroyoshi Matsumura
- G02 - OPTICS
Information Patent Grant
Optical electric-field measuring apparatus
- Patent number 4,631,402
- Issue date Dec 23, 1986
- Hitachi, Ltd.
- Kazuyuki Nagatsuma
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Optical Fiber Coupling Part and Manufacturing Method Thereof
- Publication number 20080131052
- Publication date Jun 5, 2008
- Hiroyoshi Matsumura
- G02 - OPTICS
Information Patent Application
Method for manufacturing grin lens and grin lens
- Publication number 20070160854
- Publication date Jul 12, 2007
- Hiroyoshi Matsumura
- G02 - OPTICS
Information Patent Application
Fiber optic collimator system, fiber optic collimator array, and ma...
- Publication number 20070147733
- Publication date Jun 28, 2007
- Hiroyoshi Matsumura
- G02 - OPTICS
Information Patent Application
Optical fiber coupling componet
- Publication number 20060045419
- Publication date Mar 2, 2006
- Hiroyoshi Matsumura
- G02 - OPTICS

Hiroyoshi Matsumura

Person

Patents Grantslast 30 patents

Method for manufacturing GRIN lens

Optical fiber coupling part and manufacturing method thereof

Fiber optic collimator system, fiber optic collimator array, and ma...

Optical fiber coupling part

Electric appliance, printed circuit board, remained life estimation...

Optical device diffraction gratings and a photomask for use in the...

Semiconductor optical device

Semiconductor devices

Optical device

Optical devices and optical integrated circuits

Optical modulating device utilizing polariton substance

Optical modulator

Semiconductor laser devices

Photo semiconductor device having a multi-quantum well structure

Semiconductor device with high speed signal transmission arrangemen...

Electron gas hole gas tunneling transistor device

Optical switch

Polarization plane maintaining optical fiber fabricating method

Semiconductor device

Optical switch including bypass waveguide

Semiconductor device and method of manufacturing the same

Semiconductor laser devices

Fabrication method and equipment for diffraction gratings

Method of growing heteroepitaxial InP on Si using Sn substrate impl...

Optical switching device utilizing multiple quantum well structures...

Optical waveguide having a silicon oxi-nitride layer

Member for infrared ray transmission

Distributed feedback semiconductor laser

Optical integrated circuit

Optical electric-field measuring apparatus

Patents Applicationslast 30 patents

Optical Fiber Coupling Part and Manufacturing Method Thereof

Method for manufacturing grin lens and grin lens

Fiber optic collimator system, fiber optic collimator array, and ma...

Optical fiber coupling componet