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Tokorozawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Crosstalk detector for optically read signals
Patent number
5,481,369
Issue date
Jan 2, 1996
Pioneer Electronic Corporation
Toru Akiyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Reproducing system for an optical disc
Patent number
5,420,847
Issue date
May 30, 1995
Pioneer Electronic Corporation
Takanori Maeda
G11 - INFORMATION STORAGE
Information
Patent Grant
Crosstalk detector for optically read signals
Patent number
5,321,519
Issue date
Jun 14, 1994
Pioneer Electronic Corporation
Toru Akiyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Apparatus and method of high vision signal recording using expansio...
Patent number
5,283,659
Issue date
Feb 1, 1994
Pioneer Electronic Corporation
Toru Akiyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Component video signal transmitting apparatus
Patent number
5,251,042
Issue date
Oct 5, 1993
Pioneer Electronic Corporation
Toru Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System for reproducing a stationary picture
Patent number
5,204,744
Issue date
Apr 20, 1993
Pioneer Electronic Corporation
Toru Akiyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk player with a blanking during fast scanning
Patent number
5,166,805
Issue date
Nov 24, 1992
Pioneer Electronic Corporation
Toru Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus for suppressing noises in a video signal
Patent number
4,928,166
Issue date
May 22, 1990
Pioneer Electronic Corporation
Toru Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Improved definition television set with external luminance and chro...
Patent number
4,882,625
Issue date
Nov 21, 1989
Pioneer Electronic Corporation
Toru Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Phase synchronizing circuit for a time axis shift correcting circuit
Patent number
4,866,394
Issue date
Sep 12, 1989
Pioneer Electronic Corporation
Takashi Okano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time base correction system with coarse and fine correction
Patent number
4,853,914
Issue date
Aug 1, 1989
Pioneer Electronic Corporation
Takashi Okano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Video format signal processing system
Patent number
4,853,781
Issue date
Aug 1, 1989
Pioneer Electronic Corporation
Takashi Okano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time-base error correction apparatus for video tape or disk player
Patent number
4,841,379
Issue date
Jun 20, 1989
Pioneer Electronic Corporation
Toru Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Scanning method for disk player
Patent number
4,837,637
Issue date
Jun 6, 1989
Pioneer Electronic Corporation
Toru Akiyama
G11 - INFORMATION STORAGE
Information
Patent Grant
System for playing video information recording disks, capable of sp...
Patent number
4,835,623
Issue date
May 30, 1989
Pioneer Electronic Corporation
Takashi Okano
G11 - INFORMATION STORAGE
Information
Patent Grant
System for playing video information recording disks, capable of sp...
Patent number
4,743,979
Issue date
May 10, 1988
Pioneer Electronic Corporation
Takashi Okano
G11 - INFORMATION STORAGE
Information
Patent Grant
Color burst phase detection system for use in a video disk player s...
Patent number
4,734,757
Issue date
Mar 29, 1988
Pioneer Electronic Corporation
Toru Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus for the color synchronization of reproduced video signals
Patent number
4,688,103
Issue date
Aug 18, 1987
Pioneer Electronic Corporation
Toru Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Chroma signal phase correction circuitry to be used in a color vide...
Patent number
4,584,614
Issue date
Apr 22, 1986
Pioneer Electronic Corporation
Toru Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Tracking servo system of recording disc information recording and r...
Patent number
4,512,002
Issue date
Apr 16, 1985
Universal Pioneer Corporation
Minoru Kosaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Pickup control device and method for fast or slow reproduction in a...
Patent number
4,494,154
Issue date
Jan 15, 1985
Universal Pioneer Corporation
Toru Akiyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Tangential error signal generator in PAL type video disc player
Patent number
4,477,838
Issue date
Oct 16, 1984
Universal Pioneer Corporation
Toru Akiyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and system for a disc player tracking servo
Patent number
4,344,165
Issue date
Aug 10, 1982
Universal Pioneer Corporation
Toru Akiyama
G11 - INFORMATION STORAGE