Hirohisa Sano

Person

Fukaya, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical head with lasers and mirrors in a recess formed in a substrate
- Patent number 7,292,519
- Issue date Nov 6, 2007
- Hitachi, Ltd.
- Kimio Tatsuno
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical waveguide apparatus
- Patent number 7,289,702
- Issue date Oct 30, 2007
- Hitachi, Ltd.
- Makoto Takahashi
- G02 - OPTICS
Information Patent Grant
Mounting method for optical device and optical head equipment
- Patent number 6,965,552
- Issue date Nov 15, 2005
- Hitachi, Ltd.
- Masahide Tokuda
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical waveguide and their application of the optical communicatio...
- Patent number 6,868,210
- Issue date Mar 15, 2005
- Hitachi, Ltd.
- Makoto Takahashi
- G02 - OPTICS
Information Patent Grant
Diode laser module and application equipment
- Patent number 6,782,018
- Issue date Aug 24, 2004
- Hitachi, Litd.
- Kimio Tatsuno
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical module, board mounted optical module, and assembly method o...
- Patent number 6,488,416
- Issue date Dec 3, 2002
- Hitachi, Ltd.
- Masato Shishikura
- G02 - OPTICS
Information Patent Grant
Semiconductor optical device, fiber optical amplifier and optical t...
- Patent number 6,111,998
- Issue date Aug 29, 2000
- Hitachi, Ltd.
- Tatemi Ido
- G02 - OPTICS
Information Patent Grant
Non-uniform thickness or bandgap superlattice betweeen cladding lay...
- Patent number 5,763,897
- Issue date Jun 9, 1998
- Hitachi, Ltd.
- Hirohisa Sano
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Semiconductor optical modulator
- Patent number 5,742,423
- Issue date Apr 21, 1998
- Hitachi, Ltd.
- Tatemi Ido
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor optical functional device
- Patent number 5,710,847
- Issue date Jan 20, 1998
- Hitachi, Ltd.
- Hideaki Takano
- G02 - OPTICS
Information Patent Grant
Semiconductor optical integrated device and light receiver using sa...
- Patent number 5,574,289
- Issue date Nov 12, 1996
- Hitachi, Ltd.
- Masahiro Aoki
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical waveguide device and optical transmission system
- Patent number 5,570,439
- Issue date Oct 29, 1996
- Hitachi, Ltd.
- Tatemi Ido
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical intensity and phase modulators in an optical transmitter ap...
- Patent number 5,515,196
- Issue date May 7, 1996
- Hitachi, Ltd.
- Shigeki Kitajima
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Self-routing optical switch and optical switch array
- Patent number 5,422,967
- Issue date Jun 6, 1995
- Hitachi, Ltd.
- Hiroaki Inoue
- G02 - OPTICS
Information Patent Grant
Optical modulator and optical communication system utilizing the same
- Patent number 5,339,370
- Issue date Aug 16, 1994
- Hitachi, Ltd.
- Hirohisa Sano
- G02 - OPTICS
Information Patent Grant
Optical receiving method utilizing polarization diversity and appar...
- Patent number 5,140,453
- Issue date Aug 18, 1992
- Hitachi, Ltd.
- Hideaki Tsushima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Waveguide type light merging and branching device
- Patent number 4,953,934
- Issue date Sep 4, 1990
- Hitachi, Ltd.
- Katsuyuki Imoto
- G02 - OPTICS
Information Patent Grant
Optical multi/demultiplexer and optical module using the same
- Patent number 4,909,584
- Issue date Mar 20, 1990
- Hitachi, Ltd.
- Katsuyuki Imoto
- G02 - OPTICS
Information Patent Grant
Waveguide type optical device with thermal compensation layers
- Patent number 4,904,037
- Issue date Feb 27, 1990
- Hitachi, Ltd.
- Katsuyuki Imoto
- G02 - OPTICS
Information Patent Grant
Optical fiber star coupler and method of manufacturing the same
- Patent number 4,822,128
- Issue date Apr 18, 1989
- Hitachi, Ltd.
- Katsuyuki Imoto
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Optical filter and optical device using same
- Patent number 4,790,614
- Issue date Dec 13, 1988
- Hitachi, Ltd.
- Katsuyuki Imoto
- G02 - OPTICS
Information Patent Grant
Optical multi/demultiplexer
- Patent number 4,756,587
- Issue date Jul 12, 1988
- Hitachi, Ltd.
- Hirohisa Sano
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Optical waveguide apparatus
- Publication number 20060153501
- Publication date Jul 13, 2006
- Makoto Takahashi
- G02 - OPTICS
Information Patent Application
Optical head with lasers and mirrors in a recess formed in a substrate
- Publication number 20050122880
- Publication date Jun 9, 2005
- Hitachi, Ltd.
- Kimio Tatsuno
- G11 - INFORMATION STORAGE
Information Patent Application
Optical waveguide and their application of the optical communicatio...
- Publication number 20040175075
- Publication date Sep 9, 2004
- Makoto Takahashi
- G02 - OPTICS
Information Patent Application
Mounting method for optical device and optical head equipment
- Publication number 20030147333
- Publication date Aug 7, 2003
- Masahide Tokuda
- G11 - INFORMATION STORAGE
Information Patent Application
Diode laser module and application equipment
- Publication number 20030128726
- Publication date Jul 10, 2003
- Hitachi, Ltd.
- Kimio Tatsuno
- G11 - INFORMATION STORAGE

Hirohisa Sano

Person

Patents Grantslast 30 patents

Optical head with lasers and mirrors in a recess formed in a substrate

Optical waveguide apparatus

Mounting method for optical device and optical head equipment

Optical waveguide and their application of the optical communicatio...

Diode laser module and application equipment

Optical module, board mounted optical module, and assembly method o...

Semiconductor optical device, fiber optical amplifier and optical t...

Non-uniform thickness or bandgap superlattice betweeen cladding lay...

Semiconductor optical modulator

Semiconductor optical functional device

Semiconductor optical integrated device and light receiver using sa...

Optical waveguide device and optical transmission system

Optical intensity and phase modulators in an optical transmitter ap...

Self-routing optical switch and optical switch array

Optical modulator and optical communication system utilizing the same

Optical receiving method utilizing polarization diversity and appar...

Waveguide type light merging and branching device

Optical multi/demultiplexer and optical module using the same

Waveguide type optical device with thermal compensation layers

Optical fiber star coupler and method of manufacturing the same

Optical filter and optical device using same

Optical multi/demultiplexer

Patents Applicationslast 30 patents

Optical waveguide apparatus

Optical head with lasers and mirrors in a recess formed in a substrate

Optical waveguide and their application of the optical communicatio...

Mounting method for optical device and optical head equipment

Diode laser module and application equipment