Membership
Tour
Register
Log in
Masahide Harada
Follow
Person
Tokyo, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Developing device for an image forming apparatus
Patent number
6,795,674
Issue date
Sep 21, 2004
Ricoh Company, Ltd.
Shuuichi Endoh
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developing device for an image forming apparatus
Patent number
6,643,486
Issue date
Nov 4, 2003
Ricoh Company, Ltd.
Shuuichi Endoh
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method of controlling surface potential of photoconductive element
Patent number
5,072,258
Issue date
Dec 10, 1991
Ricoh Company, Ltd.
Masahide Harada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method of controlling surface potential of photoconductive element
Patent number
4,870,460
Issue date
Sep 26, 1989
Ricoh Company, Ltd.
Masahide Harada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image control device for electrophotographic copier
Patent number
4,583,835
Issue date
Apr 22, 1986
Ricoh Company, Ltd.
Masahide Harada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic light-sensitive member with thin overlayer
Patent number
4,469,771
Issue date
Sep 4, 1984
Ricoh Co., Ltd.
Haruo Hasegawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Magnetic brush development apparatus
Patent number
4,331,100
Issue date
May 25, 1982
Ricoh Company, Ltd.
Manabu Mochizuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Scorotron charging apparatus
Patent number
4,233,511
Issue date
Nov 11, 1980
Ricoh Company, Ltd.
Masahide Harada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic light-sensitive member
Patent number
4,225,648
Issue date
Sep 30, 1980
Ricoh Company, Ltd.
Haruo Hasegawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Developing device for an image forming apparatus
Publication number
20040071482
Publication date
Apr 15, 2004
Shuuichi Endoh
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY