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Tadashi Okamoto
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Ibaraki, JP
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last 30 patents
Information
Patent Grant
Apparatus and method for controlling a system process
Patent number
5,581,759
Issue date
Dec 3, 1996
Hitachi, Ltd.
Akihiro Ohhashi
G05 - CONTROLLING REGULATING
Information
Patent Grant
Microprogram load unit
Patent number
5,504,673
Issue date
Apr 2, 1996
Hitachi, Ltd.
Tadashi Okamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Apparatus and method for controlling a system process
Patent number
5,355,482
Issue date
Oct 11, 1994
Hitachi, Ltd.
Akihiro Ohhashi
G05 - CONTROLLING REGULATING
Information
Patent Grant
Microprogram load unit having alternative backup memory sources
Patent number
5,237,687
Issue date
Aug 17, 1993
Hitachi, Ltd.
Tadashi Okamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Multiplex control system with programmable logic for controlling si...
Patent number
4,998,194
Issue date
Mar 5, 1991
Hitachi, Ltd.
Tadashi Okamoto
G05 - CONTROLLING REGULATING
Information
Patent Grant
Programmable controller with direct to plant addressing
Patent number
4,694,419
Issue date
Sep 15, 1987
Hitachi, Ltd.
Tadashi Okamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Bit processing utilizing a row and column ladder sequence
Patent number
4,688,193
Issue date
Aug 18, 1987
Hitachi, Ltd.
Hiromasa Yamaoka
G05 - CONTROLLING REGULATING
Information
Patent Grant
Digital controller
Patent number
4,628,436
Issue date
Dec 9, 1986
Hitachi, Ltd.
Tadashi Okamoto
G06 - COMPUTING CALCULATING COUNTING