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Shinji Nagatsuna
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Ohta-ku, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Photoreceptor regenerating apparatus and image forming apparatus us...
Patent number
6,763,208
Issue date
Jul 13, 2004
Ricoh Company, Ltd.
Shinji Nagatsuna
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Reusable photoreceptor and image forming apparatus using the reusab...
Patent number
6,560,414
Issue date
May 6, 2003
Ricoh Company, Ltd.
Takeo Suda
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Recyclable article and sheet-like member included therein
Patent number
6,127,012
Issue date
Oct 3, 2000
Ricoh Company, Ltd.
Shinji Nagatsuna
B32 - LAYERED PRODUCTS
Information
Patent Grant
Product including parts which can be recycled
Patent number
6,124,014
Issue date
Sep 26, 2000
Ricoh Company, Ltd.
Shinji Nagatsuna
B44 - DECORATIVE ARTS
Information
Patent Grant
Device for driving a rotary body
Patent number
4,989,037
Issue date
Jan 29, 1991
Ricoh Company, Ltd.
Shinji Nagatsuna
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image recording having a removable image forming case
Patent number
4,876,572
Issue date
Oct 24, 1989
Ricoh Company, Ltd.
Shinji Nagatsuna
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Device for driving rotary body
Patent number
4,794,420
Issue date
Dec 27, 1988
Ricoh Company, Ltd.
Michihito Ohashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Photoreceptor regenerating apparatus and image forming apparatus us...
Publication number
20020136565
Publication date
Sep 26, 2002
Shinji Nagatsuna
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Reusable photoreceptor and image forming apparatus using the reusab...
Publication number
20020090221
Publication date
Jul 11, 2002
Takeo Suda
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC