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Masaharu Kashii
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Kanagawa, JP
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last 30 patents
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Patent Grant
Portable graphic computer apparatus
Patent number
6,191,777
Issue date
Feb 20, 2001
Sony Corporation
Nae Yasuhara
G06 - COMPUTING CALCULATING COUNTING
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Patent Grant
Portable graphic computer apparatus
Patent number
5,670,992
Issue date
Sep 23, 1997
Sony Corporation
Nae Yasuhara
G06 - COMPUTING CALCULATING COUNTING
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Patent Grant
Graphic image generating apparatus with automatic demonstration ima...
Patent number
5,511,983
Issue date
Apr 30, 1996
Sony Corporation
Masaharu Kashii
A63 - SPORTS GAMES AMUSEMENTS