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Tetsuo Tanaka
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Shizuoka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Heat-sensitive stencil, process of fabricating same and printer usi...
Patent number
6,889,605
Issue date
May 10, 2005
Ricoh Company, Ltd.
Yuji Natori
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Heat-sensitive stencil and method of fabricating same
Patent number
6,403,150
Issue date
Jun 11, 2002
Ricoh Company, Ltd.
Masayuki Ohta
B32 - LAYERED PRODUCTS
Information
Patent Grant
Stencil printing method and device
Patent number
6,145,434
Issue date
Nov 14, 2000
Ricoh Company, Ltd.
Tetsuo Tanaka
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Heat-sensitive stencil and method of fabricating same
Patent number
6,096,374
Issue date
Aug 1, 2000
Ricoh Company, Ltd.
Masayuki Ohta
B32 - LAYERED PRODUCTS
Information
Patent Grant
Heat-sensitive stencil, process of fabricating same and method of p...
Patent number
6,092,461
Issue date
Jul 25, 2000
Ricoh Company, Ltd.
Tetsuo Tanaka
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Heat-sensitive stencil, process of fabricating same and method of p...
Patent number
6,050,183
Issue date
Apr 18, 2000
Ricoh Company, Ltd.
Tetsuo Tanaka
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Smooth stencil base sheet, method of producing a printing master fr...
Patent number
5,924,360
Issue date
Jul 20, 1999
Ricoh Company, Ltd.
Hiroshi Adachi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Heat-sensitive stencil and method of fabricating same
Patent number
5,843,560
Issue date
Dec 1, 1998
Ricoh Company, Ltd.
Masayuki Ohta
B32 - LAYERED PRODUCTS
Information
Patent Grant
Printer for wrapping stencil around drum
Patent number
5,813,329
Issue date
Sep 29, 1998
Ricoh Company, Ltd.
Hiroshi Tateishi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Thermo-sensitive multi-color recording material and process for pre...
Patent number
4,311,750
Issue date
Jan 19, 1982
Ricoh Company Limited
Keishi Kubo
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS