Susumu Suzuka

Person

Ibaraki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Aromatic polycarbonate resin, electrophotographic photoconductor, p...
- Patent number 7,071,285
- Issue date Jul 4, 2006
- Ricoh Company, Ltd.
- Shinichi Kawamura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
AROMATIC BLOCK POLYCARBONATE RESIN, DIPHENOL COMPOUND FOR PREPARATI...
- Patent number 6,919,419
- Issue date Jul 19, 2005
- Ricoh Company Ltd.
- Kohkoku Ri
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for purifying electronic item material
- Patent number 6,858,161
- Issue date Feb 22, 2005
- Hodogaya Chemical Co., Ltd.
- Katsumi Abe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aromatic polycarbonate resin, electrophotographic photoconductor, p...
- Patent number 6,790,571
- Issue date Sep 14, 2004
- Ricoh Company, Ltd.
- Shinichi Kawamura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Diphenol compound, aromatic polycarbonate and electrophotoconductiv...
- Patent number 6,664,361
- Issue date Dec 16, 2003
- Ricoh Company, Ltd.
- Masaomi Sasaki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
AROMATIC BLOCK POLYCARBONATE RESIN, DIPHENOL COMPOUND FOR PREPARATI...
- Patent number 6,576,386
- Issue date Jun 10, 2003
- Ricoh Company, Ltd.
- Kohkoku Ri
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Electrophotographic photoconductor and method of producing aromatic...
- Patent number 6,486,293
- Issue date Nov 26, 2002
- Ricoh Company, Ltd.
- Kohkoku Ri
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Electrophotographic photoconductor and aromatic polycarbonate resin...
- Patent number 6,303,736
- Issue date Oct 16, 2001
- Ricoh Company, Ltd.
- Shinichi Kawamura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoconductor and aromatic polycarbonate resin...
- Patent number 6,194,535
- Issue date Feb 27, 2001
- Ricoh Company, Ltd.
- Akira Katayama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Electrophotographic photoconductor and aromatic polycarbonate resin...
- Patent number 6,187,494
- Issue date Feb 13, 2001
- Ricoh Company, Ltd.
- Shinichi Kawamura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoconductor and method of producing aromatic...
- Patent number 6,187,492
- Issue date Feb 13, 2001
- Ricoh Company, Ltd.
- Kohkoku Ri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoconductor and aromatic polycarbonate resin...
- Patent number 6,172,176
- Issue date Jan 9, 2001
- Ricoh Company, Ltd.
- Chiaki Tanaka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Electrophotographic photoconductor and aromatic polycarbonate resin...
- Patent number 6,130,310
- Issue date Oct 10, 2000
- Ricoh Company, Ltd.
- Akira Katayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoconductor and aromatic polycarbonate resin...
- Patent number 6,066,428
- Issue date May 23, 2000
- Ricoh Company, Ltd.
- Akira Katayama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Electrophotographic photoconductor and aromatic polycarbonate resin...
- Patent number 6,045,959
- Issue date Apr 4, 2000
- Ricoh Company, Ltd.
- Akira Katayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoconductor and aromatic polycarbonate resin...
- Patent number 5,976,746
- Issue date Nov 2, 1999
- Ricoh Company, Ltd.
- Chiaki Tanaka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
1,3-pentadiene derivatives and electrophotographic photoconductor u...
- Patent number 5,260,156
- Issue date Nov 9, 1993
- Ricoh Company, Ltd.
- Mitsuru Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Polyolefin amino derivatives
- Patent number 5,252,750
- Issue date Oct 12, 1993
- Ricoh Company, Ltd.
- Mitsuru Hashimoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1,3-pentadiene derivatives and electrophotographic photoconductor u...
- Patent number 5,166,438
- Issue date Nov 24, 1992
- Ricoh Company, Ltd.
- Mitsuru Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Polyolefin derivatives
- Patent number 5,068,350
- Issue date Nov 26, 1991
- Ricoh Company, Ltd.
- Mitsuru Hashimoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Electrophotographic photoconductor and polyolefin derivatives emplo...
- Patent number 4,965,157
- Issue date Oct 23, 1990
- Ricoh Company, Ltd.
- Mitsuru Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Use of a resin powder composition for electrostatic coating
- Patent number 4,908,225
- Issue date Mar 13, 1990
- Hodogaya Chemical Co., Ltd.
- Isao Niimura
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Electrophotographic toner and compounds useful for the toner
- Patent number 4,780,553
- Issue date Oct 25, 1988
- Hodogaya Chemical Co., Ltd.
- Nobuo Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fluoran compounds
- Patent number 4,694,088
- Issue date Sep 15, 1987
- Hodogaya Chemical Co., Ltd.
- Kazuo Kaneko
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Electrophotographic toner containing metal complex charge control a...
- Patent number 4,683,188
- Issue date Jul 28, 1987
- Hodogaya Chemical Co., Ltd.
- Nobuo Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
6-tetrahydrofurfurylaminofluoran compound useful as a color former...
- Patent number 4,642,663
- Issue date Feb 10, 1987
- Hodogaya Chemical Co., Ltd.
- Hideyuki Sensui
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Fluoran compounds
- Patent number 4,612,558
- Issue date Sep 16, 1986
- Hodogaya Chemical Co., Ltd.
- Mitsutoshi Anzai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
6-tetrahydrofurfurylaminofluoran compound useful as a color former
- Patent number 4,597,795
- Issue date Jul 1, 1986
- Hodogaya Chemical Co., Ltd.
- Hideyuki Sensui
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Heat sensitive record material
- Patent number 4,550,329
- Issue date Oct 29, 1985
- Hodogaya Chemical Co., Ltd.
- Michihiro Gonda
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Heat sensitive record material
- Patent number 4,539,577
- Issue date Sep 3, 1985
- Hodogaya Chemical Co., Ltd.
- Kazuo Kaneko
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
Aromatic polycarbonate resin, electrophotographic photoconductor, p...
- Publication number 20050003287
- Publication date Jan 6, 2005
- Ricoh Company, Ltd.
- Shinichi Kawamura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Aromatic block polycarbonate resin, diphenol compound for preparati...
- Publication number 20040002574
- Publication date Jan 1, 2004
- RICOH COMPANY, LTD.
- Kohkoku Ri
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Method for purifying electronic item material
- Publication number 20030050489
- Publication date Mar 13, 2003
- Hodogaya Chemical Co., Ltd.
- Katsumi Abe
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Diphenol compound, aromatic polycarbonate and electrophotoconductiv...
- Publication number 20020147278
- Publication date Oct 10, 2002
- Masaomi Sasaki
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Aromatic polycarbonate resin, electrophotographic photoconductor, p...
- Publication number 20020098430
- Publication date Jul 25, 2002
- Ricoh Company, Ltd.
- Shinichi Kawamura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Susumu Suzuka

Person

Patents Grantslast 30 patents

Aromatic polycarbonate resin, electrophotographic photoconductor, p...

AROMATIC BLOCK POLYCARBONATE RESIN, DIPHENOL COMPOUND FOR PREPARATI...

Method for purifying electronic item material

Aromatic polycarbonate resin, electrophotographic photoconductor, p...

Diphenol compound, aromatic polycarbonate and electrophotoconductiv...

AROMATIC BLOCK POLYCARBONATE RESIN, DIPHENOL COMPOUND FOR PREPARATI...

Electrophotographic photoconductor and method of producing aromatic...

Electrophotographic photoconductor and aromatic polycarbonate resin...

Electrophotographic photoconductor and aromatic polycarbonate resin...

Electrophotographic photoconductor and aromatic polycarbonate resin...

Electrophotographic photoconductor and method of producing aromatic...

Electrophotographic photoconductor and aromatic polycarbonate resin...

Electrophotographic photoconductor and aromatic polycarbonate resin...

Electrophotographic photoconductor and aromatic polycarbonate resin...

Electrophotographic photoconductor and aromatic polycarbonate resin...

Electrophotographic photoconductor and aromatic polycarbonate resin...

1,3-pentadiene derivatives and electrophotographic photoconductor u...

Polyolefin amino derivatives

1,3-pentadiene derivatives and electrophotographic photoconductor u...

Polyolefin derivatives

Electrophotographic photoconductor and polyolefin derivatives emplo...

Use of a resin powder composition for electrostatic coating

Electrophotographic toner and compounds useful for the toner

Fluoran compounds

Electrophotographic toner containing metal complex charge control a...

6-tetrahydrofurfurylaminofluoran compound useful as a color former...

Fluoran compounds

6-tetrahydrofurfurylaminofluoran compound useful as a color former

Heat sensitive record material

Heat sensitive record material

Patents Applicationslast 30 patents

Aromatic polycarbonate resin, electrophotographic photoconductor, p...

Aromatic block polycarbonate resin, diphenol compound for preparati...

Method for purifying electronic item material

Diphenol compound, aromatic polycarbonate and electrophotoconductiv...

Aromatic polycarbonate resin, electrophotographic photoconductor, p...