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with provision for moving or switching or masking the transducers in or out of their operative position
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CPC
G11B11/10556
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Parent Industries
G
PHYSICS
G11
Information storage
G11B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B11/00
Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00 Record carriers therefor
Current Industry
G11B11/10556
with provision for moving or switching or masking the transducers in or out of their operative position
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Patents Grants
last 30 patents
Information
Patent Grant
Medium, apparatus, and method related to encryption resultant infor...
Patent number
6,859,427
Issue date
Feb 22, 2005
Matsushita Electric Industrial Co., Ltd.
Mitsuaki Oshima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information recording apparatus
Patent number
6,678,220
Issue date
Jan 13, 2004
Hitachi, Ltd.
Hideki Saga
G11 - INFORMATION STORAGE
Information
Patent Grant
Medium, apparatus, and method related to encryption resultant infor...
Patent number
6,674,703
Issue date
Jan 6, 2004
Matsushita Electric Industrial Co., Ltd.
Mitsuaki Oshima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Magneto-optical recording and reproduction apparatus exhibiting sup...
Patent number
6,560,169
Issue date
May 6, 2003
Sharp Kabushiki Kaisha
Tomoyuki Miyake
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk apparatus with enhanced focal positioning
Patent number
6,529,455
Issue date
Mar 4, 2003
Sanyo Electric Co., Ltd.
Tadashi Okajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Medium, apparatus, and method related to encryption resultant infor...
Patent number
6,243,330
Issue date
Jun 5, 2001
Matsushita Electric Industrial Co., Ltd.
Mitsuaki Oshima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Optical switch with coarse and fine deflectors
Patent number
6,212,151
Issue date
Apr 3, 2001
Iolon, Inc.
John F. Heanue
G02 - OPTICS
Information
Patent Grant
Recording and reproducing apparatus
Patent number
5,959,948
Issue date
Sep 28, 1999
Matsushita Electric Industrial Co., Ltd.
Mitsuaki Oshima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Focus drive circuit and focus search method based on relative posit...
Patent number
5,901,122
Issue date
May 4, 1999
Sony Corporation
Hiraku Inoue
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording/reproducing device having a controller for reduci...
Patent number
5,894,459
Issue date
Apr 13, 1999
Sony Corporation
Kazuhito Kurita
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for preventing illegal copy or illegal install...
Patent number
5,881,038
Issue date
Mar 9, 1999
Matsushita Electric Industrial Co., Ltd.
Mitsuaki Oshima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information recording and/or reproducing method and apparatus in wh...
Patent number
5,768,226
Issue date
Jun 16, 1998
Canon Kabushiki Kaisha
Tsukasa Ogino
G11 - INFORMATION STORAGE
Information
Patent Grant
Carriage locking mechanism for an optical disk drive including a yo...
Patent number
5,701,290
Issue date
Dec 23, 1997
Ricoh Company, Ltd.
Yasushi Okada
G11 - INFORMATION STORAGE
Information
Patent Grant
Apparatus operating with recording medium according to positional i...
Patent number
5,699,331
Issue date
Dec 16, 1997
Matsushita Electric Industrial Co., Ltd.
Mitsuaki Oshima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Optical recording/reproducing device having control for reducing vi...
Patent number
5,684,763
Issue date
Nov 4, 1997
Sony Corporation
Kazuhito Kurita
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical unit for optically scanning an information surface, and opt...
Patent number
5,661,704
Issue date
Aug 26, 1997
U.S. Philips Corporation
Gerard E. van Rosmalen
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Recording and reproducing apparatus with varying amounts of data in...
Patent number
5,526,328
Issue date
Jun 11, 1996
Matsushita Electric Industrial Co., Ltd.
Mitsuaki Oshima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Remote fine positioning mechanism
Patent number
5,504,731
Issue date
Apr 2, 1996
Quantum Corporation
Neville K. Lee
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording and reproducing apparatus
Patent number
5,473,584
Issue date
Dec 5, 1995
Matsushita Electric Industrial Co., Ltd.
Mitsuaki Oshima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Magnet-optical disc drive device with sure disc placement
Patent number
5,448,537
Issue date
Sep 5, 1995
Sony Corporation
Nobuhiko Tsukahara
G11 - INFORMATION STORAGE
Information
Patent Grant
Track compensation apparatus of magnetooptical disk apparatus
Patent number
5,428,591
Issue date
Jun 27, 1995
Samsung Electronics Co., Ltd.
Cheol-won Lee
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk recording and reproducing device
Patent number
5,420,838
Issue date
May 30, 1995
Sharp Kabushiki Kaisha
Shigemi Maeda
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical record medium having record/non-record areas and a...
Patent number
5,416,754
Issue date
May 16, 1995
Sharp Kabushiki Kaisha
Junichi Washo
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus of measuring seek time using optical disk appa...
Patent number
5,398,222
Issue date
Mar 14, 1995
Hyundai Electronics Industries Co., Ltd.
Won M. Kim
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup apparatus and a hologram element used for same
Patent number
5,331,621
Issue date
Jul 19, 1994
Sharp Kabushiki Kaisha
Takahiro Miyake
G02 - OPTICS
Information
Patent Grant
Magneto-optical recording/reproducing system having an electromagne...
Patent number
5,305,294
Issue date
Apr 19, 1994
Mitsubishi Denki Kabushiki Kaisha
Kenjiro Kime
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk device with floating-type magnetic head
Patent number
5,303,100
Issue date
Apr 12, 1994
Sharp Kabushiki Kaisha
Junichiro Nakayama
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording and reproducing disk device having a bimo...
Patent number
5,247,493
Issue date
Sep 21, 1993
Mitsubishi Denki Kabushiki Kaisha
Kenjiro Kime
G11 - INFORMATION STORAGE
Information
Patent Grant
Repositioning laser beams in information storage media
Patent number
5,235,573
Issue date
Aug 10, 1993
BASF Aktiengesellschaft
Klaus D. Schomann
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head lifting device for magneto-optical recording/reproduc...
Patent number
5,168,484
Issue date
Dec 1, 1992
Sony Corporation
Shigeaki Wachi
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Data transfer device and method
Publication number
20050201015
Publication date
Sep 15, 2005
Hewlett-Packard Development Company, L.P.
Nigel Kevin Rushton
G11 - INFORMATION STORAGE
Information
Patent Application
Information recording apparatus
Publication number
20040052178
Publication date
Mar 18, 2004
Hideki Saga
G11 - INFORMATION STORAGE
Information
Patent Application
Medium, apparatus, and method related to encryption resultant infor...
Publication number
20040022155
Publication date
Feb 5, 2004
Mitsuaki Oshima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Data transfer device and method
Publication number
20030028841
Publication date
Feb 6, 2003
Nigel Kevin Rushton
G11 - INFORMATION STORAGE
Information
Patent Application
Light intensity modulated direct overwrite magneto-optical microhea...
Publication number
20030007442
Publication date
Jan 9, 2003
Joseph Reid Henrichs
G11 - INFORMATION STORAGE
Information
Patent Application
Magneto-optic recording and reproduction device
Publication number
20020006082
Publication date
Jan 17, 2002
Tomoyuki Miyake
G11 - INFORMATION STORAGE
Information
Patent Application
Medium, apparatus, and method related to encryption resultant infor...
Publication number
20010038578
Publication date
Nov 8, 2001
Matsushita Electric Industrial Co., Ltd.
Mitsuaki Oshima
G06 - COMPUTING CALCULATING COUNTING