Yoshihisa Hirayama

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Yamanashi-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Light emitting diode device
- Patent number 7,061,454
- Issue date Jun 13, 2006
- Citizen Electronics Co., Ltd.
- Masatoshi Sasuga
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Light emitting diode device
- Publication number 20040021629
- Publication date Feb 5, 2004
- CITIZEN ELECTRONICS CO., LTD.
- Masatoshi Sasuga
- G02 - OPTICS
Information Patent Application
Illuminating device for a display
- Publication number 20010013976
- Publication date Aug 16, 2001
- CITIZEN ELECTRONICS CO., LTD.
- Yoshihisa Hirayama
- G02 - OPTICS