Masahiro Oikawa

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Multilayer structure and method for manufacturing the same
- Patent number 7,666,492
- Issue date Feb 23, 2010
- Nippon Sheet Glass Company, Limited
- Katsuhide Shimmo
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Light detection device
- Patent number 7,238,935
- Issue date Jul 3, 2007
- Nippon Sheet Glass Co., LTD
- Kenichi Asada
- G01 - MEASURING TESTING
Information Patent Grant
Optical device, optical path switching device and optical path swit...
- Patent number 7,058,254
- Issue date Jun 6, 2006
- Nippon Sheet Glass Co., Ltd.
- Noriaki Nagahata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication system
- Patent number 6,856,451
- Issue date Feb 15, 2005
- Nippon Sheet Glass Co., Ltd.
- Masahiro Oikawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical circuit with harmonic generator
- Patent number 6,845,186
- Issue date Jan 18, 2005
- Nippon Sheet Glass Co., Ltd.
- Masahiro Oikawa
- G02 - OPTICS
Information Patent Grant
Optical device
- Patent number 6,807,337
- Issue date Oct 19, 2004
- Nippon Sheet Glass Co., Ltd.
- Shigeo Kittaka
- G02 - OPTICS
Information Patent Grant
Method of changing the surface of a glass substrate containing silv...
- Patent number 6,470,712
- Issue date Oct 29, 2002
- Nippon Sheet Glass Co., LTD
- Tadashi Koyama
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of changing the surface of a glass substrate containing silv...
- Patent number 6,220,058
- Issue date Apr 24, 2001
- Nippon Sheet Glass Co., LTD
- Tadashi Koyama
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Transmissive image display device
- Patent number 5,337,186
- Issue date Aug 9, 1994
- Nippon Sheet Glass, Inc.
- Masahiro Oikawa
- G02 - OPTICS
Information Patent Grant
Process of producing a magnetic disk substrate
- Patent number 5,268,071
- Issue date Dec 7, 1993
- Nippon Sheet Glass
- Kenzou Sono
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of making a plate microlens
- Patent number 5,104,435
- Issue date Apr 14, 1992
- Nippon Sheet Glass Co., Ltd.
- Masahiro Oikawa
- G02 - OPTICS
Information Patent Grant
Plate microlens and method for manufacturing the same
- Patent number 4,952,037
- Issue date Aug 28, 1990
- Nippon Sheet Glass Co., Ltd.
- Masahiro Oikawa
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Light detection device
- Publication number 20060065817
- Publication date Mar 30, 2006
- Nippon Sheet Glass Company, Limited
- Kenichi Asada
- G01 - MEASURING TESTING
Information Patent Application
Multilayer structure and method for manufacturing the same
- Publication number 20050153105
- Publication date Jul 14, 2005
- Katsuhide Shimmo
- G02 - OPTICS
Information Patent Application
Optical device, optical path switching device and optical path swit...
- Publication number 20040131307
- Publication date Jul 8, 2004
- Noriaki Nagahata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical communication module for demultiplexing wavelength division...
- Publication number 20030185569
- Publication date Oct 2, 2003
- Hisao Nagata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical communication system
- Publication number 20030174386
- Publication date Sep 18, 2003
- Masahiro Oikawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical circuit
- Publication number 20030174926
- Publication date Sep 18, 2003
- Masahiro Oikawa
- G02 - OPTICS
Information Patent Application
Optical device
- Publication number 20030035621
- Publication date Feb 20, 2003
- Shigeo Kittaka
- G02 - OPTICS
Information Patent Application
Method of changing the surface of a glass substrate containing silv...
- Publication number 20020017116
- Publication date Feb 14, 2002
- NIPPON SHEET GLASS CO., LTD.
- Tadashi Koyama
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Method of changing the surface of a glass substrate containing silv...
- Publication number 20010028502
- Publication date Oct 11, 2001
- NIPPON SHEET GLASS CO., LTD.
- Tadashi Koyama
- C03 - GLASS MINERAL OR SLAG WOOL

Masahiro Oikawa

Person

Patents Grantslast 30 patents

Multilayer structure and method for manufacturing the same

Light detection device

Optical device, optical path switching device and optical path swit...

Optical communication system

Optical circuit with harmonic generator

Optical device

Method of changing the surface of a glass substrate containing silv...

Method of changing the surface of a glass substrate containing silv...

Transmissive image display device

Process of producing a magnetic disk substrate

Method of making a plate microlens

Plate microlens and method for manufacturing the same

Patents Applicationslast 30 patents

Light detection device

Multilayer structure and method for manufacturing the same

Optical device, optical path switching device and optical path swit...

Optical communication module for demultiplexing wavelength division...

Optical communication system

Optical circuit

Optical device

Method of changing the surface of a glass substrate containing silv...

Method of changing the surface of a glass substrate containing silv...