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Yasuhiko Hagihara
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Uninterruptible power supply apparatus and control method
Patent number
9,343,902
Issue date
May 17, 2016
NEC Corporation
Yasuhiko Hagihara
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Logic circuit, logic circuit design method, logic circuit design sy...
Patent number
8,065,645
Issue date
Nov 22, 2011
NEC Corporation
Shigeto Inui
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Stacked semiconductor device
Patent number
7,352,067
Issue date
Apr 1, 2008
NEC Corporation
Muneo Fukaishi
G11 - INFORMATION STORAGE
Information
Patent Grant
Three-dimensional semiconductor device provided with interchip inte...
Patent number
7,330,368
Issue date
Feb 12, 2008
NEC Corporation
Hideaki Saito
G11 - INFORMATION STORAGE
Information
Patent Grant
Logic circuit, logic circuit design method, logic circuit design sy...
Patent number
7,236,006
Issue date
Jun 26, 2007
NEC Corporation
Shigeto Inui
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Stacked semiconductor memory device
Patent number
7,221,614
Issue date
May 22, 2007
NEC Corporation
Hideaki Saito
G11 - INFORMATION STORAGE
Information
Patent Grant
Stacked semiconductor memory device
Patent number
7,209,376
Issue date
Apr 24, 2007
NEC Corporation
Hideaki Saito
G11 - INFORMATION STORAGE
Information
Patent Grant
Delay adjustment circuit and a clock generating circuit using the same
Patent number
6,918,050
Issue date
Jul 12, 2005
NEC Corporation
Atsushi Yoshikawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Semiconductor integrated circuit
Patent number
6,429,688
Issue date
Aug 6, 2002
NEC Corporation
Yasuhiko Hagihara
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Semiconductor integrated circuit
Patent number
6,329,844
Issue date
Dec 11, 2001
NEC Corporatation
Yasuhiko Hagihara
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Semiconductor integrated circuit
Patent number
6,229,340
Issue date
May 8, 2001
NEC Corporation
Yasuhiko Hagihara
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Floating point multiplier capable of easily performing a failure de...
Patent number
5,430,668
Issue date
Jul 4, 1995
NEC Corporation
Yasuhiko Hagihara
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Adder and multiplier circuit employing the same
Patent number
5,426,598
Issue date
Jun 20, 1995
NEC Corporation
Yasuhiko Hagihara
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Artificial random-number pattern generating circuit
Patent number
5,331,581
Issue date
Jul 19, 1994
NEC Corporation
Chie Ohkubo
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Booth's multiplying circuit
Patent number
5,231,415
Issue date
Jul 27, 1993
NEC Corporation
Yasuhiko Hagihara
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
UNINTERRUPTIBLE POWER SUPPLY APPARATUS AND CONTROL METHOD
Publication number
20140049104
Publication date
Feb 20, 2014
NEC Corporation
Yasuhiko Hagihara
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
SEMICONDUCTOR CHIP AND SEMICONDUCTOR DEVICE
Publication number
20090315147
Publication date
Dec 24, 2009
NEC Corporation
Hideaki Saito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LOGIC CIRCUIT, LOGIC CIRCUIT DESIGN METHOD, LOGIC CIRCUIT DESIGN SY...
Publication number
20070234242
Publication date
Oct 4, 2007
Shigeto Inui
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Semiconductor chip and semiconductor device
Publication number
20060145301
Publication date
Jul 6, 2006
NEC Corporation
Hideaki Saito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Stacked semiconductor device
Publication number
20060001176
Publication date
Jan 5, 2006
NEC Corporation
Muneo Fukaishi
G11 - INFORMATION STORAGE
Information
Patent Application
Stacked semiconductor memory device
Publication number
20050286334
Publication date
Dec 29, 2005
NEC Corporation
Hideaki Saito
G11 - INFORMATION STORAGE
Information
Patent Application
Stacked semiconductor memory device
Publication number
20050285174
Publication date
Dec 29, 2005
NEC Corporation
Hideaki Saito
G11 - INFORMATION STORAGE
Information
Patent Application
Three-dimensional semiconductor device provided with interchip inte...
Publication number
20050286286
Publication date
Dec 29, 2005
NEC Corporation
Hideaki Saito
G11 - INFORMATION STORAGE
Information
Patent Application
Logic circuit, logic circuit design method, logic circuit design sy...
Publication number
20050212578
Publication date
Sep 29, 2005
Shigeto Inui
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Semiconductor integrated circuit
Publication number
20010054915
Publication date
Dec 27, 2001
Yasuhiko Hagihara
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Semiconductor integrated circuit
Publication number
20010026171
Publication date
Oct 4, 2001
Yasuhiko Hagihara
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Delay adjustment circuit and a clock generating circuit using the same
Publication number
20010013101
Publication date
Aug 9, 2001
NEC Corporation
Atsushi Yoshikawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Semiconductor integrated circuit
Publication number
20010001229
Publication date
May 17, 2001
NEC Corporation
Yasuhiko Hagihara
H03 - BASIC ELECTRONIC CIRCUITRY