Katsuhiro Morooka

Person

Kanagawa, 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
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 6,316,577
- Issue date Nov 13, 2001
- Hodogaya Chemical Co., Ltd.
- Tomoyuki Shimada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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 6,191,249
- Issue date Feb 20, 2001
- Ricoh Company, Ltd.
- Chiaki Tanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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 6,069,224
- Issue date May 30, 2000
- Ricoh Company, Ltd.
- Chihaya Adachi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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 6,027,846
- Issue date Feb 22, 2000
- Ricoh Company, Ltd.
- Tomoyuki Shimada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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
Electrophotographic photoconductor and aromatic polycarbonate resin...
- Patent number 5,942,363
- Issue date Aug 24, 1999
- Ricoh Company, Ltd.
- Chiaki Tanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoconductor and aromatic polycarbonate resin...
- Patent number 5,910,561
- Issue date Jun 8, 1999
- Ricoh Company, Ltd.
- Chihaya Adachi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoconductor and aromatic polycarbonate resin...
- Patent number 5,846,680
- Issue date Dec 8, 1998
- Ricoh Company, Ltd.
- Chihaya Adachi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoconductor and aromatic polycarbonate resin...
- Patent number 5,789,128
- Issue date Aug 4, 1998
- Ricoh Company, Ltd.
- Chihaya Adachi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

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
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-...

Katsuhiro Morooka

Person

Patents Grantslast 30 patents

Aromatic polycarbonate resin, electrophotographic photoconductor, p...

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

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 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...

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...

Electrophotographic photoconductor and aromatic polycarbonate resin...

Patents Applicationslast 30 patents

Aromatic polycarbonate resin, electrophotographic photoconductor, p...

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

Diphenol compound, aromatic polycarbonate and electrophotoconductiv...

Aromatic polycarbonate resin, electrophotographic photoconductor, p...