Shigenobu Sakai

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical device and three-dimensional display device
- Patent number 7,336,244
- Issue date Feb 26, 2008
- Nippon Telegraph and Telephone Corporation
- Shiro Suyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical device and three-dimensional display device
- Patent number 7,209,097
- Issue date Apr 24, 2007
- Nippon Telegraph and Telephone Corporation
- Shiro Suyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical device and three-dimensional display device
- Patent number 6,714,174
- Issue date Mar 30, 2004
- Nippon Telegraph and Telephone Corporation
- Shiro Suyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Liquid crystal optical device
- Patent number 6,469,683
- Issue date Oct 22, 2002
- Nippon Telegraph and Telephone Corporation
- Shiro Suyama
- G02 - OPTICS
Information Patent Grant
Optical devices with high polymer material and method of forming th...
- Patent number 5,751,452
- Issue date May 12, 1998
- Nippon Telegraph & Telephone Corporation
- Keiji Tanaka
- G02 - OPTICS
Information Patent Grant
Method for making an optical device using a laser beam interference...
- Patent number 5,748,272
- Issue date May 5, 1998
- Nippon Telegraph & Telephone Corporation
- Keiji Tanaka
- G02 - OPTICS
Information Patent Grant
Display and image capture apparatus
- Patent number 5,532,736
- Issue date Jul 2, 1996
- Nippon Telegraph & Telephone Corporation
- Makoto Kuriki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Display and image capture apparatus which enables eye contact
- Patent number 5,317,405
- Issue date May 31, 1994
- Nippon Telegraph & Telephone Corporation
- Makoto Kuriki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projector
- Patent number 5,300,966
- Issue date Apr 5, 1994
- Nippon Telegraph & Telephone Corporation
- Kazutake Uehira
- G02 - OPTICS
Information Patent Grant
Method of operation for an active matrix type display device
- Patent number 5,012,228
- Issue date Apr 30, 1991
- Nippon Telegraph & Telephone
- Kiyoshi Masuda
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
Optical device and three-dimensional display device
- Publication number 20040164927
- Publication date Aug 26, 2004
- Nippon Telegraph and Telephone Corporation
- Shiro Suyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical device and three-dimensional display device
- Publication number 20040160389
- Publication date Aug 19, 2004
- Nippon Telegraph and Telephone Corporation
- Shiro Suyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical device and three-dimensional display device
- Publication number 20020047837
- Publication date Apr 25, 2002
- Nippon Telegraph and Telephone Corporation
- Shiro Suyama
- G02 - OPTICS

Shigenobu Sakai

Person

Patents Grantslast 30 patents

Optical device and three-dimensional display device

Optical device and three-dimensional display device

Optical device and three-dimensional display device

Liquid crystal optical device

Optical devices with high polymer material and method of forming th...

Method for making an optical device using a laser beam interference...

Display and image capture apparatus

Display and image capture apparatus which enables eye contact

Projector

Method of operation for an active matrix type display device

Patents Applicationslast 30 patents

Optical device and three-dimensional display device

Optical device and three-dimensional display device

Optical device and three-dimensional display device