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Yoshio Tokuyama
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Yokohama, JP
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last 30 patents
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Patent Grant
Video signal recording/reproducing apparatus and reproducing apparatus
Patent number
6,621,981
Issue date
Sep 16, 2003
Victor Company of Japan, Ltd.
Yoshio Tokuyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Tracking error data detecting apparatus and VTR having the same app...
Patent number
5,771,132
Issue date
Jun 23, 1998
Victor Company of Japan, Ltd.
Naoto Hirohata
G11 - INFORMATION STORAGE
Information
Patent Grant
Helical scan type playback apparatus for video data recorded on mag...
Patent number
5,381,238
Issue date
Jan 10, 1995
Victor Company of Japan, Ltd.
Yasuomi Namiki
G11 - INFORMATION STORAGE
Information
Patent Grant
Helical scan type playback apparatus for video data recorded on mag...
Patent number
5,223,941
Issue date
Jun 29, 1993
Victor Company of Japan, Ltd.
Yasuomi Namiki
G11 - INFORMATION STORAGE
Information
Patent Grant
Control pulse recording circuit for dual tape speed recording and r...
Patent number
4,796,103
Issue date
Jan 3, 1989
Victor Company of Japan Ltd.
Yoshio Tokuyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Pseudo vertical synchronizing signal producing circuit
Patent number
4,725,898
Issue date
Feb 16, 1988
Victor Company of Japan, Ltd.
Yoshio Tokuyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Drum servo circuit
Patent number
4,688,114
Issue date
Aug 18, 1987
Victor Company of Japan, Ltd.
Yoshio Tokuyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Back-space editing control circuit for rotary-head magnetic tape re...
Patent number
4,680,649
Issue date
Jul 14, 1987
Victor Company of Japan, Ltd.
Yoshio Tokuyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Control signal generating circuit for a magnetic recording and/or r...
Patent number
4,577,243
Issue date
Mar 18, 1986
Victor Company of Japan, Ltd.
Yoshio Tokuyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Reproducing apparatus capable of performing high-speed reproduction...
Patent number
4,521,815
Issue date
Jun 4, 1985
Victor Company of Japan, Limited
Yoshio Tokuyama
G11 - INFORMATION STORAGE
Information
Patent Grant
D.C. Motor driving circuit
Patent number
4,514,668
Issue date
Apr 30, 1985
Victor Company of Japan, Ltd.
Yoshio Tokuyama
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
System for reproducing a video signal in a slow motion or still pic...
Patent number
4,510,533
Issue date
Apr 9, 1985
Victor Company of Japan, Ltd.
Yoshio Tokuyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Recording and reproducing video signals at selectable different tap...
Patent number
4,490,755
Issue date
Dec 25, 1984
Victor Company of Japan, Ltd.
Yoshio Tokuyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Video signal reproducing apparatus
Patent number
4,307,417
Issue date
Dec 22, 1981
Victor Company of Japan, Ltd.
Yoshio Tokuyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE