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Toshimasa Kamisada
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Hiratuka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Distance measurement image pickup apparatus
Patent number
11,531,102
Issue date
Dec 20, 2022
Hitachi-LG Data Storage, Inc.
Toshimasa Kamisada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Distance measurement apparatus and angle adjustment method of the same
Patent number
10,838,063
Issue date
Nov 17, 2020
Hitachi-LG Data Storage, Inc.
Naoya Matsuura
G01 - MEASURING TESTING
Information
Patent Grant
Three-dimensional distance measurement apparatus
Patent number
10,614,584
Issue date
Apr 7, 2020
Hitachi-LG Data Storage, Inc.
Katsuhiko Izumi
G06 - COMPUTING CALCULATING COUNTING
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 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
Information recording apparatus, information recording medium and i...
Patent number
7,542,396
Issue date
Jun 2, 2009
Hitachi, Ltd.
Motoyasu Terao
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup and optical disc apparatus provided with the same
Patent number
7,379,397
Issue date
May 27, 2008
Hitachi, Ltd.
Hiromitsu Mori
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
Optical pickup and optical disc apparatus provided with the same
Patent number
7,076,791
Issue date
Jul 11, 2006
Hiromitsu Mori
G11 - INFORMATION STORAGE
Information
Patent Grant
Laser module and optical head
Patent number
6,985,424
Issue date
Jan 10, 2006
Hitachi, Ltd.
Shigeru Nakamura
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optic disk apparatus having means for eliminating fluctuati...
Patent number
5,668,786
Issue date
Sep 16, 1997
Hitachi, Ltd.
Tohru Sasaki
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
Separation type optical head
Patent number
5,060,213
Issue date
Oct 22, 1991
Hitachi, Ltd.
Toshimasa Kamisada
G11 - INFORMATION STORAGE
Information
Patent Grant
Apparatus and method for detecting focus error signal and tracking...
Patent number
4,841,509
Issue date
Jun 20, 1989
Hitachi, Ltd.
Toshimasa Kamisada
G11 - INFORMATION STORAGE
Information
Patent Grant
Focus error detection apparatus utilizing focusing an front and rea...
Patent number
4,742,218
Issue date
May 3, 1988
Hitachi, Ltd.
Shigeru Nakamura
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
DISTANCE MEASUREMENT IMAGE PICKUP APPARATUS
Publication number
20200110177
Publication date
Apr 9, 2020
Hitachi-LG Data Storage, Inc.
Toshimasa KAMISADA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
THREE-DIMENSIONAL DISTANCE MEASUREMENT APPARATUS
Publication number
20190073781
Publication date
Mar 7, 2019
Hitachi-LG Data Storage, Inc.
Katsuhiko Izumi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
DISTANCE MEASUREMENT APPARATUS AND ANGLE ADJUSTMENT METHOD OF THE SAME
Publication number
20190011560
Publication date
Jan 10, 2019
Hitachi-LG Data Storage, Inc.
Naoya Matsuura
G01 - MEASURING TESTING
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 Apparatus And Optical Disc Apparatus Using Same
Publication number
20090268584
Publication date
Oct 29, 2009
Toshimasa Kamisada
G11 - INFORMATION STORAGE
Information
Patent Application
Optical head and apparatus for optically recording and reproducing...
Publication number
20080198730
Publication date
Aug 21, 2008
Hitachi Media Electronics Co., Ltd.
Hiromitsu Mori
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
Optical pickup and optical disc apparatus provided with the same
Publication number
20060233069
Publication date
Oct 19, 2006
Hitachi, Ltd
Hiromitsu Mori
G11 - INFORMATION STORAGE
Information
Patent Application
Information recording apparatus, information recording medium and i...
Publication number
20060227670
Publication date
Oct 12, 2006
Motoyasu Terao
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
Information recording medium and manufacturing process
Publication number
20050276211
Publication date
Dec 15, 2005
Akemi Hirotsune
G11 - INFORMATION STORAGE
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
Information
Patent Application
Optical pickup and optical disc apparatus provided with the same
Publication number
20030117934
Publication date
Jun 26, 2003
Hitachi, Ltd
Hiromitsu Mori
G11 - INFORMATION STORAGE