Tadashi Ishikawa

Person

Yotsukaido, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Camera shutter and driving device having piezoelectric element for...
- Patent number 6,027,260
- Issue date Feb 22, 2000
- Seiko Precision Inc.
- Hajime Oda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Drive member sensing arrangement for an automatic focusing system o...
- Patent number 5,175,577
- Issue date Dec 29, 1992
- Seikosha Co., Ltd.
- Nobuo Shinozaki
- G02 - OPTICS
Information Patent Grant
Flash photography changeover device
- Patent number 4,929,977
- Issue date May 29, 1990
- Seikosha Co., Ltd.
- Tadashi Ishikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Time recorder with printing wheels and impression hammer
- Patent number 4,755,835
- Issue date Jul 5, 1988
- Seikosha Co., Ltd.
- Masuo Ogihara
- G07 - CHECKING-DEVICES
Information Patent Grant
Time recorder with automatic correction for momentary discontinuati...
- Patent number 4,751,521
- Issue date Jun 14, 1988
- Seikosha Co., Ltd.
- Masuo Ogihara
- G07 - CHECKING-DEVICES
Information Patent Grant
Alarm signaling time indicating mechanism for an alarm clock
- Patent number 4,657,404
- Issue date Apr 14, 1987
- Seikosha Co., Ltd.
- Masuo Ogihara
- G04 - HOROLOGY
Information Patent Grant
Mode switching device in an electronic timepiece
- Patent number 4,444,511
- Issue date Apr 24, 1984
- Seiko Koki Kabushiki Kaisha
- Masuo Ogihara
- G04 - HOROLOGY
Information Patent Grant
Alarm control system for alarm clock
- Patent number 4,423,966
- Issue date Jan 3, 1984
- Seiko Koki Kabushiki Kaisha
- Masuo Ogihara
- G04 - HOROLOGY
Information Patent Grant
Second stop device of clock
- Patent number 4,400,091
- Issue date Aug 23, 1983
- Seiko Koki Kabushiki Kaisha
- Musuo Ogihara
- G04 - HOROLOGY
Information Patent Grant
Time detecting device for alarm clock
- Patent number 4,376,994
- Issue date Mar 15, 1983
- Seiko Koki Kabushiki Kaisha
- Masuo Ogihara
- G04 - HOROLOGY
Information Patent Grant
Time detecting device for alarm clock
- Patent number 4,371,267
- Issue date Feb 1, 1983
- Seiko Koki Kabushiki Kaisha
- Masuo Ogihara
- G04 - HOROLOGY

Tadashi Ishikawa

Person

Patents Grantslast 30 patents

Camera shutter and driving device having piezoelectric element for...

Drive member sensing arrangement for an automatic focusing system o...

Flash photography changeover device

Time recorder with printing wheels and impression hammer

Time recorder with automatic correction for momentary discontinuati...

Alarm signaling time indicating mechanism for an alarm clock

Mode switching device in an electronic timepiece

Alarm control system for alarm clock

Second stop device of clock

Time detecting device for alarm clock

Time detecting device for alarm clock