Hisao Watanabe

Person

Sagamihara-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
CLV optical disc, CLV optical disc format, and an optical disc medi...
- Patent number 6,940,792
- Issue date Sep 6, 2005
- Ricoh Company, Ltd.
- Hisao Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
CLV optical disc, CLV optical disc format, and an optical disc medi...
- Patent number 6,678,235
- Issue date Jan 13, 2004
- Ricoh Company, Ltd.
- Hisao Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Constant linear velocity (CLV) optical disc
- Patent number 6,452,898
- Issue date Sep 17, 2002
- Ricoh Company, Ltd.
- Hisao Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for exposing optical disc master plate and method of expo...
- Patent number 6,339,573
- Issue date Jan 15, 2002
- Ricoh Company, Ltd.
- Hisao Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for exposing optical disc master plate and method of expo...
- Patent number 6,212,146
- Issue date Apr 3, 2001
- Ricoh Company, Ltd.
- Hisao Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Device for removing a substance deposited on a sheet
- Patent number 6,189,173
- Issue date Feb 20, 2001
- Ricoh Company, Ltd.
- Masatoshi Saito
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method and apparatus for removing image forming substance from imag...
- Patent number 6,156,127
- Issue date Dec 5, 2000
- Ricoh Company, Ltd.
- Tohru Maruyama
- B08 - CLEANING
Information Patent Grant
Method for removing a substance deposited on a sheet
- Patent number 6,143,091
- Issue date Nov 7, 2000
- Ricoh Company, Ltd.
- Masatoshi Saito
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method and apparatus for removing image forming substance from imag...
- Patent number 5,896,612
- Issue date Apr 27, 1999
- Ricoh Company, Ltd.
- Tohru Maruyama
- B08 - CLEANING
Information Patent Grant
Device for removing a substance deposited on a sheet
- Patent number 5,855,734
- Issue date Jan 5, 1999
- Ricoh Company, Ltd.
- Masatoshi Saito
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Apparatus for removing image forming substance from image holding m...
- Patent number 5,835,837
- Issue date Nov 10, 1998
- Ricoh Company, Ltd.
- Masatoshi Saitoh
- B08 - CLEANING
Information Patent Grant
Device for removing a substance deposited on a sheet
- Patent number 5,735,009
- Issue date Apr 7, 1998
- Ricoh Company, Ltd.
- Masatoshi Saito
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Apparatus for removing image forming substance from image holding m...
- Patent number 5,642,550
- Issue date Jul 1, 1997
- Ricoh Company, Ltd.
- Tohru Maruyama
- B08 - CLEANING
Information Patent Grant
Apparatus for removing image forming substance from sheet and sheet...
- Patent number 5,534,063
- Issue date Jul 9, 1996
- Ricoh Company, Ltd.
- Tooru Maruyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Apparatus for exposing optical disc master plate and method of expo...
- Publication number 20010008508
- Publication date Jul 19, 2001
- RICOH COMPANY, LTD.
- Hisao Watanabe
- G11 - INFORMATION STORAGE

Hisao Watanabe

Person

Patents Grantslast 30 patents

CLV optical disc, CLV optical disc format, and an optical disc medi...

CLV optical disc, CLV optical disc format, and an optical disc medi...

Constant linear velocity (CLV) optical disc

Apparatus for exposing optical disc master plate and method of expo...

Apparatus for exposing optical disc master plate and method of expo...

Device for removing a substance deposited on a sheet

Method and apparatus for removing image forming substance from imag...

Method for removing a substance deposited on a sheet

Method and apparatus for removing image forming substance from imag...

Device for removing a substance deposited on a sheet

Apparatus for removing image forming substance from image holding m...

Device for removing a substance deposited on a sheet

Apparatus for removing image forming substance from image holding m...

Apparatus for removing image forming substance from sheet and sheet...

Patents Applicationslast 30 patents

Apparatus for exposing optical disc master plate and method of expo...