Membership
Tour
Register
Log in
Akio Fujikawa
Follow
Person
Kyoto, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
D/A converter circuit, organic EL drive circuit and organic EL disp...
Patent number
7,477,217
Issue date
Jan 13, 2009
Rohm Co., Ltd.
Jun Maede
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
D/A converter circuit, organic EL drive circuit, and organic EL dis...
Patent number
7,456,767
Issue date
Nov 25, 2008
Rohm Co., Ltd.
Shinichi Abe
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Organic EL panel driving circuit, organic EL display device and org...
Patent number
7,446,737
Issue date
Nov 4, 2008
Rohm Co., Ltd.
Jun Maede
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Information recording apparatus
Patent number
7,426,087
Issue date
Sep 16, 2008
Rohm Co., Ltd.
Akio Fujikawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Organic EL panel drive circuit and organic EL display device
Patent number
7,420,529
Issue date
Sep 2, 2008
Rohm Co., Ltd.
Shinichi Abe
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Organic EL element drive circuit and organic EL display device usin...
Patent number
7,321,347
Issue date
Jan 22, 2008
Rohm Co., Ltd.
Hiroshi Yaguma
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Organic EL panel drive circuit and propriety test method for drive...
Patent number
7,084,575
Issue date
Aug 1, 2006
Rohm Co., Ltd.
Shinichi Abe
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Interface system between controller IC and driver IC, and IC suitab...
Patent number
7,042,270
Issue date
May 9, 2006
Rohm Co., Ltd.
Akio Fujikawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Disk recording apparatus with erroneous writing protection
Patent number
7,019,929
Issue date
Mar 28, 2006
Rohm Co., Ltd.
Akio Fujikawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Organic EL panel drive circuit and organic EL display device using...
Patent number
7,002,303
Issue date
Feb 21, 2006
Rohm Co., Ltd.
Jun Maede
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Organic EL element drive circuit and organic EL display device usin...
Patent number
6,963,172
Issue date
Nov 8, 2005
Rohm Co., Ltd.
Jun Maede
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Semiconductor integrated circuit device having a voltage regulator
Patent number
6,337,597
Issue date
Jan 8, 2002
Rohm Co., Ltd.
Akio Fujikawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor integrated circuit device for driving a magnetic disk...
Patent number
6,268,763
Issue date
Jul 31, 2001
Rohm Co., Ltd.
Akio Fujikawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Frequency and phase comparator
Patent number
5,631,582
Issue date
May 20, 1997
Rohm Co., Ltd.
Akio Fujikawa
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
D/a Converter Circuit, Organic el Drive Circuit, and Oragnic el Dis...
Publication number
20070273566
Publication date
Nov 29, 2007
Shinichi Abe
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Organic el panel dirving circuit, organic el display device and org...
Publication number
20070152935
Publication date
Jul 5, 2007
Jun Maede
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Organic el drive circuit and organic el display device using the same
Publication number
20070132672
Publication date
Jun 14, 2007
Jun Maede
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Interface system between controller IC and driver IC, and IC suitab...
Publication number
20060152271
Publication date
Jul 13, 2006
ROHM CO., LTD.
Akio Fujikawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Information recording apparatus
Publication number
20060119966
Publication date
Jun 8, 2006
ROHM CO., LTD.
Akio Fujikawa
G11 - INFORMATION STORAGE
Information
Patent Application
Information recording apparatus
Publication number
20060119967
Publication date
Jun 8, 2006
ROHM CO., LTD.
Akio Fujikawa
G11 - INFORMATION STORAGE
Information
Patent Application
D/A converter circuit, organic EL drive circuit and organic EL disp...
Publication number
20050067969
Publication date
Mar 31, 2005
Jun Maede
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Organic EL panel drive circuit and organic EL display device
Publication number
20050024300
Publication date
Feb 3, 2005
Shinichi Abe
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Organic EL panel drive circuit and propriety test method for drive...
Publication number
20050024299
Publication date
Feb 3, 2005
Shinichi Abe
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Organic EL panel drive circuit and organic EL display device using...
Publication number
20040263086
Publication date
Dec 30, 2004
Jun Maede
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Organic EL element drive circuit and organic EL display device usin...
Publication number
20040207580
Publication date
Oct 21, 2004
Hiroshi Yaguma
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Organic EL element drive circuit and organic EL display device usin...
Publication number
20040080279
Publication date
Apr 29, 2004
Jun Maede
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Interface system between controller IC and driver IC, and IC suitab...
Publication number
20030080797
Publication date
May 1, 2003
ROHM CO., LTD.
Akio Fujikawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Information recording apparatus
Publication number
20020159181
Publication date
Oct 31, 2002
Akio Fujikawa
G11 - INFORMATION STORAGE
Information
Patent Application
For driving a magnetic disk apparatus
Publication number
20010007517
Publication date
Jul 12, 2001
Rohm Co. Ltd.
Akio Fujikawa
G11 - INFORMATION STORAGE