Haruhisa Okumura

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Level converter circuit and a liquid crystal display device employi...
- Patent number 8,159,486
- Issue date Apr 17, 2012
- Hitachi Displays, Ltd.
- Haruhisa Okumura
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Level converter circuit and a liquid crystal display device employi...
- Patent number 7,408,544
- Issue date Aug 5, 2008
- Hitachi, Ltd.
- Haruhisa Okumura
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Level converter circuit and a liquid crystal display device employi...
- Patent number 6,995,757
- Issue date Feb 7, 2006
- Hitachi, Ltd.
- Haruhisa Okumura
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Level converter circuit and a liquid crystal display device employi...
- Patent number 6,593,920
- Issue date Jul 15, 2003
- Hitachi, Ltd.
- Haruhisa Okumura
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
Level converter circuit and a liquid crystal display device employi...
- Publication number 20080273001
- Publication date Nov 6, 2008
- Hitachi, Ltd.
- Haruhisa Okumura
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
Level converter circuit and a liquid crystal display device employi...
- Publication number 20060077198
- Publication date Apr 13, 2006
- Hitachi, Ltd.
- Haruhisa Okumura
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
Level converter circuit and a liquid crystal display device employi...
- Publication number 20040004593
- Publication date Jan 8, 2004
- Hitachi, Ltd.
- Haruhisa Okumura
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
Level converter circuit and aliquid crystal display device employin...
- Publication number 20010017609
- Publication date Aug 30, 2001
- Hitachi, Ltd. and Hitachi Device Engineering Co., Ltd.
- Haruhisa Okumura
- H03 - BASIC ELECTRONIC CIRCUITRY