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Masayuki Ohta
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Numazu, JP
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last 30 patents
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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
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 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
Thermosensitive stencil paper and the method of producing the same
Patent number
5,707,712
Issue date
Jan 13, 1998
Ricoh Company, Ltd.
Manabu Fujimura
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS