Inventor

Katsuhiro Morooka

Inventor

Kawasaki, JP

Overview

1998–2006

Patent span

Physics

Primary field (CPC G)

Patents· 23 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Gprimary

G03GElectrography56%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds32%

C09DCoating compositions, e.g. paints, varnishes or lacquers10%

C07CAcyclic or carbocyclic compounds2%

PatentTitleYear

7,071,285'Aromatic polycarbonate resin, electrophotographic photoconductor, process cartridge, and electrophotographic image forming method and apparatus'2006 6,919,419'AROMATIC BLOCK POLYCARBONATE RESIN, DIPHENOL COMPOUND FOR PREPARATION OF THE POLYCARBONATE RESIN, ELECTRO-PHOTOGRAPHIC PHOTOCONDUCTOR, ELECTRO-PHOTOGRAPHIC IMAGE FORMING APPARATUS AND PROCESS, AND PROCESS CARTRIDGE'2005 6,790,571'Aromatic polycarbonate resin, electrophotographic photoconductor, process cartridge, and electrophotographic image forming method and apparatus'2004 6,664,361'Diphenol compound, aromatic polycarbonate and electrophotoconductive photoconductor'2003 6,576,386'AROMATIC BLOCK POLYCARBONATE RESIN, DIPHENOL COMPOUND FOR PREPARATION OF THE POLYCARBONATE RESIN, ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS AND PROCESS, AND PROCESS CARTRIDGE'2003 6,486,293'Electrophotographic photoconductor and method of producing aromatic polycarbonate resin for use in the photoconductor'2002 6,316,577'Electrophotographic photoconductor and aromatic polycarbonate resin for use therein'2001 6,303,736'Electrophotographic photoconductor and aromatic polycarbonate resin for use in the photoconductor'2001 6,194,535'Electrophotographic photoconductor and aromatic polycarbonate resin for use therein'2001 6,191,249'Electrophotographic photoconductor and aromatic polycarbonate resin for use therein'2001 6,187,494'Electrophotographic photoconductor and aromatic polycarbonate resin for use in the photoconductor'2001 6,187,492'Electrophotographic photoconductor and method of producing aromatic polycarbonate resin for use in the photoconductor'2001 6,172,176'Electrophotographic photoconductor and aromatic polycarbonate resin for use therein'2001 6,130,310'Electrophotographic photoconductor and aromatic polycarbonate resin for use therein'2000 6,069,224'Electrophotographic photoconductor and aromatic polycarbonate resin for use therein'2000 6,066,428'Electrophotographic photoconductor and aromatic polycarbonate resin for use therein'2000 6,045,959'Electrophotographic photoconductor and aromatic polycarbonate resin for use therein'2000 6,027,846'Electrophotographic photoconductor and aromatic polycarbonate resin for use therein'2000 5,976,746'Electrophotographic photoconductor and aromatic polycarbonate resin for use therein'1999 5,942,363'Electrophotographic photoconductor and aromatic polycarbonate resin for use therein'1999 5,910,561'Electrophotographic photoconductor and aromatic polycarbonate resin for use therein'1999 5,846,680'Electrophotographic photoconductor and aromatic polycarbonate resin for use therein'1998 5,789,128'Electrophotographic photoconductor and aromatic polycarbonate resin for use therein'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2006Patents assigned to RICOH KK (21)· patent assignee history

1998–2005Patents assigned to HODOGAYA CHEMICAL CO LTD (9)· patent assignee history

1998–2003Based in Kawasaki, JP· patent location history

1999–2001Based in Ibaraki, JP· patent location history

2001–2006Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RICOH KK	21	1998–2006
HODOGAYA CHEMICAL CO LTD	9	1998–2005

Locations

Location	Patents	Span
Kawasaki, JP	9	1998–2003
Kanagawa, JP	8	2001–2006
Ibaraki, JP	6	1999–2001