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Odawara, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical pickup device and optical disc apparatus
Patent number
8,295,144
Issue date
Oct 23, 2012
Hitachi Media Electronics Co., Ltd.
Kazuyoshi Yamazaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup having radially arranged lenses in a low profile con...
Patent number
8,169,880
Issue date
May 1, 2012
Hitachi Media Electronics Co., Ltd.
Tomoto Kawamura
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup and optical information recording and reproducing de...
Patent number
8,154,962
Issue date
Apr 10, 2012
Hitachi Media Electronics Co., Ltd.
Hiromitsu Mori
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup device and optical disc apparatus
Patent number
8,040,780
Issue date
Oct 18, 2011
Hitachi Media Electronics Co., Ltd.
Kazuyoshi Yamazaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup having radially arranged lenses in a low profile con...
Patent number
8,014,258
Issue date
Sep 6, 2011
Hitachi Media Electronics Co., Ltd.
Tomoto Kawamura
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup apparatus and optical disc apparatus with a single b...
Patent number
7,978,587
Issue date
Jul 12, 2011
Hitachi Media Electronics Co., Ltd.
Toshimasa Kamisada
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pick up apparatus with a single beam system and having a di...
Patent number
7,940,630
Issue date
May 10, 2011
Hitachi Media Electronics Co., Ltd.
Toshimasa Kamisada
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pick up apparatus with a single beam system and having a di...
Patent number
7,885,166
Issue date
Feb 8, 2011
Hitachi Media Electronics Co., Ltd.
Toshimasa Kamisada
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup having radially arranged lenses in a low profile con...
Patent number
7,733,760
Issue date
Jun 8, 2010
Hitachi Media Electronics Co., Ltd.
Tomoto Kawamura
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup apparatus and optical disc apparatus using same
Patent number
7,567,495
Issue date
Jul 28, 2009
Hitachi Media Electronics Co., Ltd.
Toshimasa Kamisada
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical head and its adjusting method and optical disk device using...
Patent number
7,245,574
Issue date
Jul 17, 2007
Hitachi, Ltd.
Toshimasa Kamisada
G11 - INFORMATION STORAGE
Information
Patent Grant
Multi-beam split-type optical head for use in optical disk apparatus
Patent number
5,555,539
Issue date
Sep 10, 1996
Hitachi, Ltd.
Toshimasa Kamisada
G11 - INFORMATION STORAGE
Information
Patent Grant
2-laser optical head and recording/reproducing apparatus
Patent number
5,493,554
Issue date
Feb 20, 1996
Hitachi, Ltd.
Tooru Sasaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical head device for recording/reproduction for recording medium...
Patent number
5,295,125
Issue date
Mar 15, 1994
Hitachi, Ltd.
Kunikazu Oonishi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic clamp for a disk medium
Patent number
5,050,158
Issue date
Sep 17, 1991
Hitachi, Ltd.
Yasuo Kitada
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Optical Pickup Device And Optical Disc Apparatus
Publication number
20120002532
Publication date
Jan 5, 2012
Kazuyoshi Yamazaki
G11 - INFORMATION STORAGE
Information
Patent Application
Optical Pickup Having Radially Arranged Lenses in a Low Profile Con...
Publication number
20110299378
Publication date
Dec 8, 2011
Hitachi Media Electronics Co., Ltd.
Tomoto Kawamura
G11 - INFORMATION STORAGE
Information
Patent Application
Optical Pickup Having Radially Arranged Lenses in a Low Profile Con...
Publication number
20100214904
Publication date
Aug 26, 2010
Hitachi Media Electronics Co., Ltd.
Tomoto Kawamura
G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS
Publication number
20100061202
Publication date
Mar 11, 2010
Kazuyoshi Yamazaki
G11 - INFORMATION STORAGE
Information
Patent Application
Optical Pickup Apparatus And Optical Disc Apparatus Using Same
Publication number
20090268584
Publication date
Oct 29, 2009
Toshimasa Kamisada
G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL PICKUP APPARATUS AND OPTICAL DISC APPARATUS USING SAME
Publication number
20080094948
Publication date
Apr 24, 2008
Toshimasa Kamisada
G11 - INFORMATION STORAGE
Information
Patent Application
Optical pickup apparatus and optical disc apparatus using same
Publication number
20080093569
Publication date
Apr 24, 2008
Toshimasa Kamisada
G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL PICKUP AND OPTICAL INFORMATION RECORDING AND REPRODUCING DE...
Publication number
20080095014
Publication date
Apr 24, 2008
Hiromitsu Mori
G11 - INFORMATION STORAGE
Information
Patent Application
Optical pickup apparatus and optical disc apparatus using same
Publication number
20080094976
Publication date
Apr 24, 2008
Toshimasa Kamisada
G11 - INFORMATION STORAGE
Information
Patent Application
Optical pickup and optical disc drive
Publication number
20080095017
Publication date
Apr 24, 2008
Hitachi Media Electronics., Ltd.
Tomoto Kawamura
G11 - INFORMATION STORAGE
Information
Patent Application
Optical pickup apparatus and optical disc apparatus using same
Publication number
20080094949
Publication date
Apr 24, 2008
Toshimasa Kamisada
G11 - INFORMATION STORAGE
Information
Patent Application
Optical pickup apparatus and optical disc apparatus using same
Publication number
20080094951
Publication date
Apr 24, 2008
Toshimasa Kamisada
G11 - INFORMATION STORAGE
Information
Patent Application
Disk video camera
Publication number
20060103759
Publication date
May 18, 2006
Hitachi, Ltd
Toshimasa Kamisada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Video camera using optical disc
Publication number
20040252221
Publication date
Dec 16, 2004
Yoshiro Konishi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical head and its adjusting method and optical disk device using...
Publication number
20030161249
Publication date
Aug 28, 2003
Hitachi, Inc.
Toshimasa Kamisada
G11 - INFORMATION STORAGE