Shigeru Obara

Follow

Person

Saitama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Crystal unit
- Patent number 8,030,827
- Issue date Oct 4, 2011
- Nihon Dempa Kogyo Co., Ltd.
- Takahiko Iwasaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Crystal unit
- Patent number 7,939,768
- Issue date May 10, 2011
- Nihon Dempa Kogyo Co., Ltd.
- Kouichi Hara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Quartz crystal element made of double-rotation Y-cut quartz crystal...
- Patent number 7,863,802
- Issue date Jan 4, 2011
- Nihon Dempa Kogyo Co., Ltd.
- Akio Chiba
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Crystal oscillator
- Patent number 7,061,164
- Issue date Jun 13, 2006
- Nihon Dempa Kogyo Co., Ltd.
- Takahiko Iwasaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
IT-cut quartz crystal unit
- Patent number 7,011,887
- Issue date Mar 14, 2006
- Nihon Dempa Kogyo Co., Ltd.
- Shigeru Obara
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Heat resistant quartz-crystal unit
- Patent number 6,680,560
- Issue date Jan 20, 2004
- Nihon Dempa Kogyo Co., Ltd.
- Genwa Koki
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Quartz crystal unit
- Patent number 6,300,707
- Issue date Oct 9, 2001
- Nihon Dempa Kogyo Co., Ltd.
- Sachiko Takehana
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Crystal unit
- Publication number 20090252983
- Publication date Oct 8, 2009
- NIHON DEMPA KOGYO CO., LTD.
- Kouichi Hara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CRYSTAL UNIT
- Publication number 20090195126
- Publication date Aug 6, 2009
- NIHON DEMPA KOGYO CO., LTD.
- Takahiko IWASAKI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
METAL BASE FOR CRYSTAL UNIT AND CRYSTAL UNIT USING THE SAME
- Publication number 20090167116
- Publication date Jul 2, 2009
- NIHON DEMPA KOGYO CO., LTD.
- Keisuke MIYASHITA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
QUARTZ CRYSTAL ELEMENT MADE OF DOUBLE-ROTATION Y-CUT QUARTZ CRYSTAL...
- Publication number 20090102326
- Publication date Apr 23, 2009
- NIHON DEMPA KOGYO CO., LTD.
- Akio Chiba
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Crystal oscillator
- Publication number 20050269912
- Publication date Dec 8, 2005
- Takahiko Iwasaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
IT-cut quartz crystal unit
- Publication number 20040173141
- Publication date Sep 9, 2004
- NIHON DEMPA KOGYO CO., LTD.
- Shigeru Obara
- C30 - CRYSTAL GROWTH
Information Patent Application
Heat resistant quartz-crystal unit
- Publication number 20030102778
- Publication date Jun 5, 2003
- Genwa Koki
- H03 - BASIC ELECTRONIC CIRCUITRY