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Norio Koizumi
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Suwa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Display controller, display unit and electronic apparatus
Patent number
7,061,459
Issue date
Jun 13, 2006
Seiko Epson Corporation
Norio Koizumi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Display driver, and display unit and electronic instrument using th...
Patent number
6,975,309
Issue date
Dec 13, 2005
Seiko Epson Cpropration
Tsuyoshi Tamura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Semiconductor device, liquid crystal display, and electronic equipm...
Patent number
6,552,712
Issue date
Apr 22, 2003
Seiko Epson Corporation
Norio Koizumi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Semiconductor device, and liquid crystal device and electronic equi...
Patent number
6,525,567
Issue date
Feb 25, 2003
Seiko Epson Corporation
Norio Koizumi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Electrical device with booster circuit
Patent number
6,317,344
Issue date
Nov 13, 2001
Seiko Epson Corporation
Norio Koizumi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Semiconductor device, and liquid crystal device and electronic equi...
Patent number
6,300,797
Issue date
Oct 9, 2001
Seiko Epson Corporation
Norio Koizumi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Semiconductor device with internal power supply circuit, together w...
Patent number
6,181,584
Issue date
Jan 30, 2001
Seiko Epson Corporation
Norio Koizumi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Oscillators with charging and discharging circuits
Patent number
6,075,420
Issue date
Jun 13, 2000
Seiko Epson Corporation
Yoichi Imamura
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Matrix type display device, electronic system including the same an...
Patent number
5,896,114
Issue date
Apr 20, 1999
Seiko Epson Corporation
Yohichi Imamura
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Oscillation device, display data processing device, matrix-type dis...
Patent number
5,784,072
Issue date
Jul 21, 1998
Seiko Epson Corporation
Yoichi Imamura
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Matrix type display device, electronic system including the same an...
Patent number
5,742,271
Issue date
Apr 21, 1998
Seiko Epson Corporaiton
Yohichi Imamura
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Patents Applications
last 30 patents
Information
Patent Application
Semiconductor device, liquid crystal display, and electronic equipm...
Publication number
20030155577
Publication date
Aug 21, 2003
SEIKO EPSON CORPORATION
Norio Koizumi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Display controller, display unit and electronic apparatus
Publication number
20020186213
Publication date
Dec 12, 2002
SEIKO EPSON CORPORATION
Norio Koizumi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Display driver, and display unit and electronic instrument using th...
Publication number
20020057265
Publication date
May 16, 2002
SEIKO EPSON CORPORATION
Tsuyoshi Tamura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Semiconductor device and electronic equipment using same
Publication number
20020055215
Publication date
May 9, 2002
SEIKO EPSON CORPORATION
Tsuyoshi Tamura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Semiconductor device, and liquid crystal device and electronic equi...
Publication number
20010048322
Publication date
Dec 6, 2001
Seiko Epson Corporation
Norio Koizumi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS