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Keiichi Kurakazu
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Microcomputer and dividing circuit
Patent number
6,996,700
Issue date
Feb 7, 2006
Renesas Technology Corp.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Single-chip microcomputer with integral clock generating unit provi...
Patent number
6,748,507
Issue date
Jun 8, 2004
Hitachi, Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Single-chip microcomputer with hierarchical internal bus structure...
Patent number
6,735,683
Issue date
May 11, 2004
Hitachi, Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Processing system with microcomputers each operable in master and s...
Patent number
6,591,294
Issue date
Jul 8, 2003
Hitachi, Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data processor and data processing system
Patent number
6,351,788
Issue date
Feb 26, 2002
Hitachi, Ltd.
Takanaga Yamazaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Microcomputer and dividing circuit
Patent number
6,343,357
Issue date
Jan 29, 2002
Hitachi, Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Microcomputer system with at least first and second microcomputers...
Patent number
6,279,063
Issue date
Aug 21, 2001
Hitachi Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Central processing unit having instruction queue of 32-bit length f...
Patent number
6,272,620
Issue date
Aug 7, 2001
Hitachi, Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Microcomputer having variable bit width area for displacement and c...
Patent number
6,253,308
Issue date
Jun 26, 2001
Hitachi, Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Single-chip microcomputer synchronously controlling external synchr...
Patent number
6,223,265
Issue date
Apr 24, 2001
Hitachi, Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Single-chip microcomputer operable in master and slave modes and ha...
Patent number
6,212,620
Issue date
Apr 3, 2001
Hitachi, Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Branch instruction having different field lengths for unconditional...
Patent number
6,205,535
Issue date
Mar 20, 2001
Hitachi, Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Microcomputer having variable bit width area for displacement
Patent number
6,131,154
Issue date
Oct 10, 2000
Hitachi, Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Central processing unit having instruction queue of 32-bit length f...
Patent number
6,122,724
Issue date
Sep 19, 2000
Hitachi, Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Microcomputer having variable bit width area for displacement and c...
Patent number
5,991,545
Issue date
Nov 23, 1999
Hitachi, Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Division circuit and the division method thereof
Patent number
5,969,976
Issue date
Oct 19, 1999
Hitachi, Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Microcomputer having multiple bus structure coupling CPU to other p...
Patent number
5,930,523
Issue date
Jul 27, 1999
Hitachi Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Microcomputer having 16 bit fixed length instruction format
Patent number
5,682,545
Issue date
Oct 28, 1997
Hitachi, Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data processor providing fast break in program execution
Patent number
5,644,703
Issue date
Jul 1, 1997
Hitachi, Ltd.
Keiichi Kurakazu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
RISC system with instructions which include register area and displ...
Patent number
5,517,664
Issue date
May 14, 1996
Hitachi, Ltd.
Tan Watanabe
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data processor providing fast break in program execution
Patent number
5,493,659
Issue date
Feb 20, 1996
Hitachi, Ltd.
Keiichi Kurakazu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
RISC system capable of performing calls and returns without advanci...
Patent number
5,450,610
Issue date
Sep 12, 1995
Hitachi, Ltd.
Tan Watanabe
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Bus error processing system having direct bus master/CPU communication
Patent number
5,375,211
Issue date
Dec 20, 1994
Hitachi, Ltd.
Takashi Maruyama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data processing system having multiple register management for call...
Patent number
5,307,502
Issue date
Apr 26, 1994
Hitachi, Ltd.
Tan Watanabe
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data processor
Patent number
5,305,460
Issue date
Apr 19, 1994
Hitachi, Ltd.
Susumu Kaneko
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
RISC system performing calls and returns without saving or restorin...
Patent number
5,214,786
Issue date
May 25, 1993
Hitachi, Ltd.
Tan Watanabe
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data processing system
Patent number
5,187,782
Issue date
Feb 16, 1993
Hitachi, Ltd.
Ikuya Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Microprocessor
Patent number
5,070,473
Issue date
Dec 3, 1991
Hitachi, Ltd.
Makoto Takano
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data processor with fast break in program execution by selectively...
Patent number
4,998,197
Issue date
Mar 5, 1991
Hitachi, Ltd.
Keiichi Kurakazu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Microcomputer with synchronized data transfer
Patent number
4,975,593
Issue date
Dec 4, 1990
Hitachi, Ltd.
Keiichi Kurakazu
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
Single-chip microcomputer
Publication number
20120023281
Publication date
Jan 26, 2012
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
MICROCOMPUTER AND DIVIDING CIRCUIT
Publication number
20100191934
Publication date
Jul 29, 2010
Renesas Technology Corp.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
MICROCOMPUTER AND DIVIDING CIRCUIT
Publication number
20080313444
Publication date
Dec 18, 2008
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Single-chip microcomputer
Publication number
20080263228
Publication date
Oct 23, 2008
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Microcomputer and dividing circuit
Publication number
20050251651
Publication date
Nov 10, 2005
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Single-chip microcomputer
Publication number
20040199716
Publication date
Oct 7, 2004
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Single-chip microcomputer
Publication number
20030233527
Publication date
Dec 18, 2003
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Single-chip microcomputer
Publication number
20030046514
Publication date
Mar 6, 2003
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Microcomputer and dividing circuit
Publication number
20020078325
Publication date
Jun 20, 2002
Hitachi, Ltd.
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Single-chip microcomputer
Publication number
20020007430
Publication date
Jan 17, 2002
Shumpei Kawasaki
G06 - COMPUTING CALCULATING COUNTING