Kunitoshi Sugiyama

Person

Numazu-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
System for separating electrophotographic carrier compositions and...
- Patent number 7,182,861
- Issue date Feb 27, 2007
- Ricoh Company, Ltd.
- Kunitoshi Sugiyama
- B08 - CLEANING
Information Patent Grant
Reversible thermosensitive recording medium, method of producing th...
- Patent number 6,489,265
- Issue date Dec 3, 2002
- Ricoh Company, Ltd.
- Yoshihiko Hotta
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method of separating electrophotographic carrier compositions and r...
- Patent number 6,464,797
- Issue date Oct 15, 2002
- Ricoh Company, Ltd.
- Kunitoshi Sugiyama
- B08 - CLEANING
Information Patent Grant
Reversible thermosensitive recording medium, card, label, disk, dis...
- Patent number 6,362,130
- Issue date Mar 26, 2002
- Ricoh Company, Ltd.
- Yoshihiko Hotta
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Reversible thermosensitive recording medium, method of producing th...
- Patent number 6,174,836
- Issue date Jan 16, 2001
- Ricoh Company Ltd.
- Yoshihiko Hotta
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method for producing a reversible thermosensitive recording material
- Patent number 5,380,550
- Issue date Jan 10, 1995
- Ricoh Company, Ltd.
- Kunitoshi Sugiyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Reversible thermosensitive recording material and method for produc...
- Patent number 5,342,815
- Issue date Aug 30, 1994
- Ricoh Company, Ltd.
- Kunitoshi Sugiyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
Method of separating electrophotographic carrier compositions and r...
- Publication number 20030129103
- Publication date Jul 10, 2003
- Kunitoshi Sugiyama
- B08 - CLEANING

Kunitoshi Sugiyama

Person

Patents Grantslast 30 patents

System for separating electrophotographic carrier compositions and...

Reversible thermosensitive recording medium, method of producing th...

Method of separating electrophotographic carrier compositions and r...

Reversible thermosensitive recording medium, card, label, disk, dis...

Reversible thermosensitive recording medium, method of producing th...

Method for producing a reversible thermosensitive recording material

Reversible thermosensitive recording material and method for produc...

Patents Applicationslast 30 patents

Method of separating electrophotographic carrier compositions and r...