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Masami Hasegawa
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor device
Patent number
7,616,516
Issue date
Nov 10, 2009
Hitachi ULSI Systems Co., Ltd.
Masayuki Hirayama
G11 - INFORMATION STORAGE
Information
Patent Grant
Multiport memory, data processor and data processing system
Patent number
6,996,661
Issue date
Feb 7, 2006
Renesas Technology Corp.
Masami Hasegawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Multiport memory, data processor and data processing system
Patent number
6,625,686
Issue date
Sep 23, 2003
Hitachi, Ltd.
Masami Hasegawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Multiport memory, data processor and data processing system
Patent number
6,480,947
Issue date
Nov 12, 2002
Hitachi, Ltd.
Masami Hasegawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Multi-port memory device having precharged bit lines
Patent number
5,317,537
Issue date
May 31, 1994
Hitachi, Ltd.
Satoshi Shinagawa
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
SEMICONDUCTOR DEVICE
Publication number
20080266937
Publication date
Oct 30, 2008
Hitachi ULSI Systems Co., Ltd.
Masayuki HIRAYAMA
G11 - INFORMATION STORAGE
Information
Patent Application
Multiport memory, data processor and data processing system
Publication number
20040107307
Publication date
Jun 3, 2004
Hitachi, Ltd.
Masami Hasegawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Multiport memory, data processor and data processing system
Publication number
20020194424
Publication date
Dec 19, 2002
Hitachi, Ltd.
Masami Hasegawa
G06 - COMPUTING CALCULATING COUNTING