Katsumi Yamaguchi

Person

Fuchu, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Display apparatus for displaying an image
- Patent number 8,368,822
- Issue date Feb 5, 2013
- Hitachi, Ltd.
- Yasuhiko Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multiple beam scanning apparatus and light source unit therefor
- Patent number 6,133,566
- Issue date Oct 17, 2000
- Ricoh Company, Ltd.
- Katsumi Yamaguchi
- G02 - OPTICS
Information Patent Grant
Multi-beam pitch adjustment system and method
- Patent number 5,786,594
- Issue date Jul 28, 1998
- Ricoh Company, Ltd.
- Tatsuya Ito
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Multi-beam light source device and optical scanning apparatus using...
- Patent number 5,671,077
- Issue date Sep 23, 1997
- Ricoh Company, Ltd.
- Susumu Imakawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Optical recording apparatus capable of controlling optical power of...
- Patent number 5,432,537
- Issue date Jul 11, 1995
- Ricoh Company, Ltd.
- Susumu Imakawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Scanning optical system
- Patent number 5,233,455
- Issue date Aug 3, 1993
- Ricoh Company, Ltd.
- Katsumi Yamaguchi
- G02 - OPTICS
Information Patent Grant
Scanning optical system
- Patent number 5,155,616
- Issue date Oct 13, 1992
- Ricoh Company, Ltd.
- Katsumi Yamaguchi
- G02 - OPTICS
Information Patent Grant
Optical scanning system
- Patent number 5,005,928
- Issue date Apr 9, 1991
- Ricoh Company, Ltd.
- Seizo Suzuki
- G02 - OPTICS
Information Patent Grant
Scanning optical system
- Patent number 4,955,682
- Issue date Sep 11, 1990
- Ricoh Company, Ltd.
- Katsumi Yamaguchi
- G02 - OPTICS
Information Patent Grant
Semiconductor laser source unit
- Patent number 4,953,171
- Issue date Aug 28, 1990
- Ricoh Company, Ltd.
- Tomohiro Nakajima
- G02 - OPTICS
Information Patent Grant
Light beam scanning lens and light beam scanning device
- Patent number 4,934,772
- Issue date Jun 19, 1990
- Ricoh Company, Ltd.
- Nobuo Sakuma
- G02 - OPTICS
Information Patent Grant
Collimated light beam scanning method including curvature of field...
- Patent number 4,906,061
- Issue date Mar 6, 1990
- Ricoh Company, Ltd.
- Katsumi Yamaguchi
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
DISPLAY APPARATUS FOR DISPLAYING AN IMAGE
- Publication number 20090225240
- Publication date Sep 10, 2009
- Hitachi, Ltd.
- Yasuhiko Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Katsumi Yamaguchi

Person

Patents Grantslast 30 patents

Display apparatus for displaying an image

Multiple beam scanning apparatus and light source unit therefor

Multi-beam pitch adjustment system and method

Multi-beam light source device and optical scanning apparatus using...

Optical recording apparatus capable of controlling optical power of...

Scanning optical system

Scanning optical system

Optical scanning system

Scanning optical system

Semiconductor laser source unit

Light beam scanning lens and light beam scanning device

Collimated light beam scanning method including curvature of field...

Patents Applicationslast 30 patents

DISPLAY APPARATUS FOR DISPLAYING AN IMAGE