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Shoichi Ozeki
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Hitachi, JP
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last 30 patents
Information
Patent Grant
Insulated gate bipolar transistor decreasing the gate resistance
Patent number
6,580,108
Issue date
Jun 17, 2003
Hitachi, Ltd.
Tomoyuki Utsumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Driver circuit, driver integrated circuit, and display device and e...
Patent number
6,040,827
Issue date
Mar 21, 2000
Hitachi, Ltd.
Kazuhiro Shiina
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Semiconductor circuit having turn-on prevention capability of switc...
Patent number
5,818,281
Issue date
Oct 6, 1998
Hitachi, Ltd.
Hitoshi Ohura
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
High-side switch with overcurrent protecting circuit
Patent number
5,184,272
Issue date
Feb 2, 1993
Hitachi, Ltd.
Koichi Suda
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Write circuit for use in semiconductor storage device
Patent number
4,665,505
Issue date
May 12, 1987
Hitachi, Ltd.
Nobuaki Miyakawa
G11 - INFORMATION STORAGE