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Hidekazu Matsumoto
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Hitachi, JP
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last 30 patents
Information
Patent Grant
System for storing restart address of microprogram, determining the...
Patent number
5,146,569
Issue date
Sep 8, 1992
Hitachi, Ltd.
Shinichiro Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Suspended instruction restart processing system based on a checkpoi...
Patent number
5,003,458
Issue date
Mar 26, 1991
Hitachi, Ltd.
Shinichiro Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data processor provided with instructions which refer to both tagge...
Patent number
4,896,258
Issue date
Jan 23, 1990
Hitachi, Ltd.
Shinichiro Yamaguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Apparatus for performing floating point arithmetic operations and r...
Patent number
4,839,846
Issue date
Jun 13, 1989
Hitachi, Ltd.
Kenji Hirose
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Bit slice multiplication circuit
Patent number
4,811,269
Issue date
Mar 7, 1989
Hitachi, Ltd.
Kenji Hirose
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Microprogrammed control data processing apparatus in which operand...
Patent number
4,807,113
Issue date
Feb 21, 1989
Hitachi, Ltd.
Hidekazu Matsumoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Floating point data adder
Patent number
4,644,490
Issue date
Feb 17, 1987
Hitachi, Ltd.
Takao Kobayashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Central processing unit for executing instructions of variable leng...
Patent number
4,530,050
Issue date
Jul 16, 1985
Hitachi, Ltd.
Yasushi Fukunaga
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Bus selection control in a data transmission apparatus for a multip...
Patent number
4,523,272
Issue date
Jun 11, 1985
Hitachi, Ltd.
Yasushi Fukunaga
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Input/output control device with memory device for storing variable...
Patent number
4,523,276
Issue date
Jun 11, 1985
Hitachi, Ltd.
Hideo Maejima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data processing system
Patent number
4,520,441
Issue date
May 28, 1985
Hitachi, Ltd.
Tadaaki Bandoh
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Shared virtual address translation unit for a multiprocessor system
Patent number
4,481,573
Issue date
Nov 6, 1984
Hitachi, Ltd.
Yasushi Fukunaga
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data processing unit with pipelined operands
Patent number
4,454,578
Issue date
Jun 12, 1984
Hitachi, Ltd.
Hidekazu Matsumoto
G06 - COMPUTING CALCULATING COUNTING