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Kazuhiko Sagara
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor memory having writing and reading transistors, method...
Patent number
5,357,464
Issue date
Oct 18, 1994
Hitachi, Ltd.
Shuji Shukuri
G11 - INFORMATION STORAGE
Information
Patent Grant
Capacitive memory having a PN junction writing and tunneling throug...
Patent number
5,355,330
Issue date
Oct 11, 1994
Hitachi, Ltd.
Dai Hisamoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Process of manufacturing semiconductor integrated circuit device ha...
Patent number
5,141,888
Issue date
Aug 25, 1992
Hitachi, Ltd.
Mikinori Kawaji
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for manufacturing a BiCMOS semiconductor device
Patent number
5,118,633
Issue date
Jun 2, 1992
Hitachi, Ltd.
Kazuhiko Sagara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Process of manufacturing semiconductor integrated circuit device an...
Patent number
5,011,788
Issue date
Apr 30, 1991
Hitachi, Ltd.
Mikinori Kawaji
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device with buried side contact
Patent number
4,984,048
Issue date
Jan 8, 1991
Hitachi, Ltd.
Kazuhiko Sagara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Radiation resistant bipolar memory
Patent number
4,958,320
Issue date
Sep 18, 1990
Hitachi, Ltd.
Noriyuki Homma
G11 - INFORMATION STORAGE
Information
Patent Grant
Radiation resistant bipolar memory
Patent number
4,956,688
Issue date
Sep 11, 1990
Hitachi, Ltd.
Noriyuki Honma
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device
Patent number
4,905,078
Issue date
Feb 27, 1990
Hitachi, Ltd.
Kazuhiko Sagara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Radiation resistant bipolar memory
Patent number
4,858,184
Issue date
Aug 15, 1989
Hitachi, Ltd.
Noriyuki Homma
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor device
Patent number
4,829,361
Issue date
May 9, 1989
Hitachi, Ltd.
Kazuhiko Sagara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor IC with dual groove isolation
Patent number
4,819,054
Issue date
Apr 4, 1989
Hitachi, Ltd.
Mikinori Kawaji
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device
Patent number
4,812,894
Issue date
Mar 14, 1989
Hitachi, Ltd.
Tohru Nakamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of forming extrinsic base by diffusion from polysilicon/sili...
Patent number
4,729,965
Issue date
Mar 8, 1988
Hitachi, Ltd.
Yoichi Tamaki
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
SENSITIVITY EVALUATION SYSTEM
Publication number
20160005058
Publication date
Jan 7, 2016
Hitachi, Ltd
Kazuhiko SAGARA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Distributed authentication system and communication control apparatus
Publication number
20070192484
Publication date
Aug 16, 2007
Hitachi, Ltd.
Ryouji Yamaoka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Communication node, communication network and method for updating d...
Publication number
20060198382
Publication date
Sep 7, 2006
Hitachi, Ltd.
Kazuhiko Sagara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Communication control apparatus, communication network and method o...
Publication number
20050232263
Publication date
Oct 20, 2005
Kazuhiko Sagara
H04 - ELECTRIC COMMUNICATION TECHNIQUE