Masaaki Ohyama

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical waveguide device with reduced driving voltage
- Patent number 7,239,764
- Issue date Jul 3, 2007
- Fujitsu Limited
- Masaharu Doi
- G02 - OPTICS
Information Patent Grant
Optical device
- Patent number 6,865,306
- Issue date Mar 8, 2005
- Fujitsu Limited
- Masaharu Doi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical modulator
- Patent number 6,801,675
- Issue date Oct 5, 2004
- Fujitsu Limited
- Masaharu Doi
- G02 - OPTICS
Information Patent Grant
Optical modulator having ridge and associated structure on substrate
- Patent number 6,584,240
- Issue date Jun 24, 2003
- Fujitsu Limited
- Masaharu Doi
- G02 - OPTICS
Information Patent Grant
Optical device
- Patent number 6,580,843
- Issue date Jun 17, 2003
- Fujitsu Limited
- Masaharu Doi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Double-sided printing apparatus
- Patent number 6,175,715
- Issue date Jan 16, 2001
- Fujitsu Limited
- Naoto Hirao
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic image-forming apparatus having developing devic...
- Patent number 6,055,401
- Issue date Apr 25, 2000
- Fujitsu Limited
- Yoshihiro Tonomoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 5,905,930
- Issue date May 18, 1999
- Fujitsu Limited
- Toshimasa Toyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 5,887,236
- Issue date Mar 23, 1999
- Fujitsu Limited
- Naoto Hirao
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Optical modulator
- Publication number 20030194164
- Publication date Oct 16, 2003
- FUJITSU LIMITED
- Masaharu Doi
- G02 - OPTICS
Information Patent Application
Optical device
- Publication number 20030147581
- Publication date Aug 7, 2003
- FUJITSU LIMITED
- Masaharu Doi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical waveguide device
- Publication number 20030147576
- Publication date Aug 7, 2003
- FUJITSU LIMITED
- Masaharu Doi
- G02 - OPTICS
Information Patent Application
Optical device
- Publication number 20020146190
- Publication date Oct 10, 2002
- Masaharu Doi
- G02 - OPTICS
Information Patent Application
Optical modulator
- Publication number 20020141679
- Publication date Oct 3, 2002
- Masaharu Dol
- G02 - OPTICS

Masaaki Ohyama

Person

Patents Grantslast 30 patents

Optical waveguide device with reduced driving voltage

Optical device

Optical modulator

Optical modulator having ridge and associated structure on substrate

Optical device

Double-sided printing apparatus

Electrophotographic image-forming apparatus having developing devic...

Image forming apparatus

Image forming apparatus

Patents Applicationslast 30 patents

Optical modulator

Optical device

Optical waveguide device

Optical device

Optical modulator