Yoshihiko Yanagawa

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Musashimurayama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Circuit for driving ink-jet head and method of driving the same
- Patent number 5,984,448
- Issue date Nov 16, 1999
- Citizen Watch Co., Ltd.
- Yoshihiko Yanagawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink jet head having dummy pressure chambers and inclined groups of...
- Patent number 5,499,042
- Issue date Mar 12, 1996
- Citizens Watch Co. Ltd.
- Yoshihiko Yanagawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink jet head with dummy slots
- Patent number 5,359,354
- Issue date Oct 25, 1994
- Citizen Watch Co., Ltd.
- Hisato Hiraishi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printing head for ink-jet printer
- Patent number 5,289,209
- Issue date Feb 22, 1994
- Citizen Watch Co., Ltd.
- Naomichi Suzuki
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS