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Yukinori Okazaki
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Osaka, JP
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last 30 patents
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Patent Grant
Information recording/reproducing unit and information recording/re...
Patent number
6,223,302
Issue date
Apr 24, 2001
Matsushita Electric Industrial Co., Ltd.
Yoshimitsu Nakamura
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium having both serial data and random data re...
Patent number
5,896,364
Issue date
Apr 20, 1999
Matsushita Electric Industrial Co., Ltd.
Yukinori Okazaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Automatic medium changing apparatus using an automatic regulator ac...
Patent number
5,831,947
Issue date
Nov 3, 1998
Matsushita Electric Industrial Co., Ltd.
Yukinori Okazaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk information reading control apparatus having a variable read t...
Patent number
5,808,995
Issue date
Sep 15, 1998
Matsushita Electric Industrial Co., Ltd.
Nobuyuki Nakamura
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disk data recording and reproduction with opposed polarity...
Patent number
5,757,759
Issue date
May 26, 1998
Matsushita Electric Industrial Co., Ltd.
Toshihiko Takahashi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optic disk apparatus
Patent number
5,420,835
Issue date
May 30, 1995
Matsushita Electric Industrial Co., Ltd.
Toshiya Akagi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optic memory device for overwriting information on magneto-...
Patent number
5,357,493
Issue date
Oct 18, 1994
Matsushita Electric Industrial Co., Ltd.
Yukinori Okazaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Partial ROM type optical disk and its recording and reproducing app...
Patent number
5,321,673
Issue date
Jun 14, 1994
Matsushita Electric Industrial Co., Ltd.
Yukinori Okazaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Bias magnetic field generating apparatus for magneto-optical record...
Patent number
5,229,983
Issue date
Jul 20, 1993
Matsushita Electric Industrial Co., Ltd.
Ichiro Kawamura
G11 - INFORMATION STORAGE
Information
Patent Grant
Tracking system in recording/reproducing apparatus
Patent number
5,216,646
Issue date
Jun 1, 1993
Matsushita Electric Industrial Co., Ltd.
Ryoichi Imanaka
G11 - INFORMATION STORAGE