Takayuki Hiyoshi

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Layered piezoelectric element realizing stable operating characteri...
- Patent number 7,196,458
- Issue date Mar 27, 2007
- Ricoh Company, Ltd.
- Takayuki Hiyoshi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical write apparatus including a plurality of substrates
- Patent number 7,038,706
- Issue date May 2, 2006
- Ricoh Company Ltd.
- Takayuki Hiyoshi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Liquid drop jet head and ink jet recording apparatus
- Patent number 6,729,716
- Issue date May 4, 2004
- Ricoh Company, Ltd.
- Hirotoshi Eguchi
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Optical writing device and image forming apparatus properly operabl...
- Patent number 6,538,679
- Issue date Mar 25, 2003
- Ricoh Company, Ltd.
- Takayuki Hiyoshi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method and apparatus for optical writing capable of effectively per...
- Patent number 6,456,313
- Issue date Sep 24, 2002
- Ricoh Company Ltd.
- Takayuki Hiyoshi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
Layered piezoelectric element realizing stable operating characteri...
- Publication number 20050017601
- Publication date Jan 27, 2005
- Takayuki Hiyoshi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Liquid drop jet head and ink jet recording apparatus
- Publication number 20030067513
- Publication date Apr 10, 2003
- Ricoh Company, Ltd.
- Hirotoshi Eguchi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Optical writing device and image forming apparatus properly operabl...
- Publication number 20020051049
- Publication date May 2, 2002
- Takayuki Hiyoshi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS