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Masahiro Ishigami
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Saitama, JP
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last 30 patents
Information
Patent Grant
Cellular phone allowing a hand-written character to be entered on t...
Patent number
6,944,472
Issue date
Sep 13, 2005
NEC Corporation
Masahiro Ishigami
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data transfer method and system
Patent number
6,625,445
Issue date
Sep 23, 2003
NEC Corporation
Masahiro Ishigami
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Color liquid crystal display and display method thereof
Patent number
6,542,140
Issue date
Apr 1, 2003
NEC Corporation
Masahiro Ishigami
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Portable telephone device with additional display and data inputtin...
Patent number
6,415,165
Issue date
Jul 2, 2002
NEC Corporation
Masahiro Ishigami
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Portable transceiver and ESN transfer system therefor
Patent number
5,535,436
Issue date
Jul 9, 1996
NEC Corporation
Ikio Yoshida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System for detecting the malfunction of a CPU including a watchdog...
Patent number
5,398,332
Issue date
Mar 14, 1995
NEC Corporation
Motoyoshi Komoda
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Telephone having receive call indicating function and mute/light key
Patent number
4,982,424
Issue date
Jan 1, 1991
NEC Corporation
Akio Saito
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Volume control circuit for use in portable telephone or the like
Patent number
4,924,193
Issue date
May 8, 1990
NEC Corporation
Akio Saito
H04 - ELECTRIC COMMUNICATION TECHNIQUE