Kohji Takahashi

Person

Mobara, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Multiple-tone display system
- Patent number 7,106,289
- Issue date Sep 12, 2006
- Hitachi, Ltd.
- Naruhiko Kasai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Multiple-tone display system
- Patent number 6,888,525
- Issue date May 3, 2005
- Hitachi, Ltd.
- Naruhiko Kasai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Multiple-tone display system
- Patent number 6,587,088
- Issue date Jul 1, 2003
- Hitachi, Ltd.
- Naruhiko Kasai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Liquid-crystal halftone display system
- Patent number 6,542,141
- Issue date Apr 1, 2003
- Hitachi, Ltd.
- Hiroyuki Mano
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Multiple-tone display system
- Patent number 6,437,765
- Issue date Aug 20, 2002
- Hitachi, Ltd.
- Naruhiko Kasai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Multiple-tone display system
- Patent number 6,320,564
- Issue date Nov 20, 2001
- Hitachi, Ltd.
- Naruhiko Kasai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Multiple-tone display system
- Patent number 6,191,766
- Issue date Feb 20, 2001
- Hitachi, Ltd.
- Naruhiko Kasai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Multiple-tone display system
- Patent number 6,100,864
- Issue date Aug 8, 2000
- Hitachi, Ltd.
- Naruhiko Kasai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Liquid-crystal halftone display system
- Patent number 6,072,451
- Issue date Jun 6, 2000
- Hitachi, Ltd.
- Hiroyuki Mano
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Method of and apparatus for driving liquid-crystal display device
- Patent number 5,841,416
- Issue date Nov 24, 1998
- Hitachi, Ltd.
- Hiroyuki Mano
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Multiple-tone display system
- Patent number 5,786,798
- Issue date Jul 28, 1998
- Hitachi, Ltd.
- Naruhiko Kasai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Multiple-tone display system
- Patent number 5,610,626
- Issue date Mar 11, 1997
- Hitachi, Ltd.
- Naruhiko Kasai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Multiple-tone display system
- Patent number 5,495,287
- Issue date Feb 27, 1996
- Hitachi, Ltd.
- Naruhiko Kasai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Information processing equipment capable of multicolor display
- Patent number 5,390,293
- Issue date Feb 14, 1995
- Hitachi, Ltd.
- Kiyokazu Nishioka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Half tone liquid crystal display circuit with an A.C. voltage divid...
- Patent number 5,250,937
- Issue date Oct 5, 1993
- Hitachi, Ltd.
- Ono Kikuo
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
Multiple-tone display system
- Publication number 20060221032
- Publication date Oct 5, 2006
- Naruhiko Kasai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
Multiple-tone display system
- Publication number 20050062700
- Publication date Mar 24, 2005
- Naruhiko Kasai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
Multiple-tone display system
- Publication number 20030206148
- Publication date Nov 6, 2003
- Naruhiko Kasai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
Multiple-tone display system
- Publication number 20020196222
- Publication date Dec 26, 2002
- Naruhiko Kasai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
Multiple-tone display system
- Publication number 20020033816
- Publication date Mar 21, 2002
- Naruhiko Kasai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Kohji Takahashi

Person

Patents Grantslast 30 patents

Multiple-tone display system

Multiple-tone display system

Multiple-tone display system

Liquid-crystal halftone display system

Multiple-tone display system

Multiple-tone display system

Multiple-tone display system

Multiple-tone display system

Liquid-crystal halftone display system

Method of and apparatus for driving liquid-crystal display device

Multiple-tone display system

Multiple-tone display system

Multiple-tone display system

Information processing equipment capable of multicolor display

Half tone liquid crystal display circuit with an A.C. voltage divid...

Patents Applicationslast 30 patents

Multiple-tone display system

Multiple-tone display system

Multiple-tone display system

Multiple-tone display system

Multiple-tone display system