Mitsuru Kawakami

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Hitachinaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Liquid containing tank, liquid-jet head unit, and image forming app...
- Patent number 8,480,213
- Issue date Jul 9, 2013
- Ricoh Company, Ltd.
- Yoshitaka Akiyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid-ejection head unit and image forming apparatus
- Patent number 8,366,242
- Issue date Feb 5, 2013
- Ricoh Company, Ltd.
- Tomohiko Koda
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink ejection head unit and image forming apparatus
- Patent number 8,337,002
- Issue date Dec 25, 2012
- Ricoh Company, Ltd.
- Yoshitaka Akiyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method and device for limiting a number of times each print hammer...
- Patent number 5,826,990
- Issue date Oct 27, 1998
- Hitachi Koki Co., Ltd.
- Toshiyuki Suzuki
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
LIQUID CONTAINING TANK, LIQUID-JET HEAD UNIT, AND IMAGE FORMING APP...
- Publication number 20110128334
- Publication date Jun 2, 2011
- RICOH COMPANY, LTD.
- Yoshitaka AKIYAMA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIQUID-EJECTION HEAD UNIT AND IMAGE FORMING APPARATUS
- Publication number 20100328400
- Publication date Dec 30, 2010
- RICOH COMPANY, LTD.
- Tomohiko Koda
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INK EJECTION HEAD UNIT AND IMAGE FORMING APPARATUS
- Publication number 20100328408
- Publication date Dec 30, 2010
- RICOH COMPANY, LTD.
- Yoshitaka AKIYAMA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS