Tsutomu YAMAKAWA

Person

Sayama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Surface mount type crystal oscillator
- Patent number 8,008,980
- Issue date Aug 30, 2011
- Nihon Dempa Kogyo Co., Ltd.
- Kouichi Moriya
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Surface mount type crystal oscillator
- Patent number 7,932,786
- Issue date Apr 26, 2011
- Nihon Dempa Kogyo Co., Ltd.
- Kouichi Moriya
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Surface-mount type crystal oscillator
- Patent number 7,768,357
- Issue date Aug 3, 2010
- Nihon Dempa Kogyo Co., Ltd.
- Tsutomu Yamakawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High-frequency radio apparatus
- Patent number 7,603,100
- Issue date Oct 13, 2009
- Nihon Dempa Kogyo Co., Ltd.
- Kazuo Akaike
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Surface mount type crystal oscillator
- Patent number 7,602,107
- Issue date Oct 13, 2009
- Nihon Dempa Kogyo Co., Ltd.
- Kouichi Moriya
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Digital temperature compensation oscillator
- Patent number 5,170,136
- Issue date Dec 8, 1992
- Nihon Dempa Kogyo Co., Ltd.
- Tsutomu Yamakawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digital temperature-compensated oscillator
- Patent number 5,081,431
- Issue date Jan 14, 1992
- Nihon Dempa Kogyo Co., Ltd.
- Kuichi Kubo
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Piezoelectric resonator mountings
- Patent number 4,639,632
- Issue date Jan 27, 1987
- Nihon Dempa Kogyo Co., Ltd.
- Hozumi Nakata
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Surface mount type crystal oscillator
- Publication number 20100026398
- Publication date Feb 4, 2010
- Kouichi Moriya
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Surface mount type crystal oscillator
- Publication number 20100013565
- Publication date Jan 21, 2010
- Kouichi Moriya
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SURFACE-MOUNT TYPE CRYSTAL OSCILLATOR
- Publication number 20090167448
- Publication date Jul 2, 2009
- NIHON DEMPA KOGYO CO., LTD.
- Tsutomu YAMAKAWA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SURFACE MOUNT TYPE CRYSTAL OSCILLATOR
- Publication number 20070176517
- Publication date Aug 2, 2007
- Kouichi MORIYA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Surface mount type crystal oscillator
- Publication number 20070120614
- Publication date May 31, 2007
- Kouichi Moriya
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
High-frequency radio apparatus
- Publication number 20060063489
- Publication date Mar 23, 2006
- Kazuo Akaike
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Tsutomu YAMAKAWA

Person

Patents Grantslast 30 patents

Surface mount type crystal oscillator

Surface mount type crystal oscillator

Surface-mount type crystal oscillator

High-frequency radio apparatus

Surface mount type crystal oscillator

Digital temperature compensation oscillator

Digital temperature-compensated oscillator

Piezoelectric resonator mountings

Patents Applicationslast 30 patents

Surface mount type crystal oscillator

Surface mount type crystal oscillator

SURFACE-MOUNT TYPE CRYSTAL OSCILLATOR

SURFACE MOUNT TYPE CRYSTAL OSCILLATOR

Surface mount type crystal oscillator

High-frequency radio apparatus