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Noboru Azusawa
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Hitachi, 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
Motor speed controller for suppressing shaft torsion vibration
Patent number
5,545,957
Issue date
Aug 13, 1996
Hitachi, Ltd.
Kenji Kubo
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Programmable controller and sequence control method
Patent number
5,504,930
Issue date
Apr 2, 1996
Hitachi, Ltd.
Mitsuaki Kobayashi
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
System for partially erasing thermally written liquid crystal element
Patent number
5,268,776
Issue date
Dec 7, 1993
Hitachi, Ltd.
Makoto Tachikawa
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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
Liquid crystal projection display
Patent number
4,952,034
Issue date
Aug 28, 1990
Hitachi, Ltd.
Noboru Azusawa
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Liquid crystal projection display having laser intensity varied acc...
Patent number
4,810,064
Issue date
Mar 7, 1989
Hitachi, Ltd.
Noboru Azusawa
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Pulse width modulation pulse generator
Patent number
4,628,475
Issue date
Dec 9, 1986
Hitachi, Ltd.
Noboru Azusawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Apparatus and method for controlling a thyristor converter in respo...
Patent number
4,571,668
Issue date
Feb 18, 1986
Hitachi, Ltd.
Noboru Azusawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Control system for commutatorless motor
Patent number
4,271,385
Issue date
Jun 2, 1981
Hitachi, Ltd.
Noboru Azusawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Control system for commutatorless motor driven through frequency co...
Patent number
4,262,241
Issue date
Apr 14, 1981
Hitachi, Ltd.
Noboru Azusawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER