| Patent | Date |
|---|
Light measurement apparatus
Grant 9,442,010 - Yanagawa September 13, 2 | 2016-09-13 |
Light Measurement Apparatus
App 20150124249 - Yanagawa; Naoharu | 2015-05-07 |
Information recording apparatus and method and computer program
Grant 8,018,803 - Yanagawa , et al. September 13, 2 | 2011-09-13 |
Optical pickup and information device
Grant 8,014,256 - Yanagawa , et al. September 6, 2 | 2011-09-06 |
Information reproduction apparatus
Grant 7,961,579 - Kuroda , et al. June 14, 2 | 2011-06-14 |
Information recording/reproducing device and the like
Grant 7,948,844 - Yanagawa , et al. May 24, 2 | 2011-05-24 |
Recording device and method, reproducing device and method, recording/reproducing device and method, and computer program
Grant 7,859,965 - Yanagawa , et al. December 28, 2 | 2010-12-28 |
Recording apparatus and recording medium, and computer program
Grant 7,852,726 - Yanagawa , et al. December 14, 2 | 2010-12-14 |
Information Recording Device And Information Recording Program
App 20100220579 - Yanagawa; Naoharu ; et al. | 2010-09-02 |
Recording apparatus and recording method, and computer program
Grant 7,760,606 - Yanagawa , et al. July 20, 2 | 2010-07-20 |
Information recording device and method, and computer program
Grant 7,746,741 - Yanagawa , et al. June 29, 2 | 2010-06-29 |
Information Reproduction Apparatus
App 20100037247 - Kuroda; Kazuo ; et al. | 2010-02-11 |
Optical Pickup And Information Device
App 20090323501 - Yanagawa; Naoharu ; et al. | 2009-12-31 |
Optical pickup device, and information recording and reproduction device
Grant 7,623,435 - Yanagawa , et al. November 24, 2 | 2009-11-24 |
Optical Pickup And Information Device
App 20090274029 - Izawa; Masataka ; et al. | 2009-11-05 |
Information Recording/reproducing Apparatus
App 20090196130 - Yanagawa; Naoharu ; et al. | 2009-08-06 |
Recording Apparatus And Recording Method, And Computer Program
App 20090147650 - Yanagawa; Naoharu ; et al. | 2009-06-11 |
Information Recording Apparatus And Method And Computer Program
App 20090116350 - Yanagawa; Naoharu ; et al. | 2009-05-07 |
Information Recording/reproducing Device And The Like
App 20090103405 - Yanagawa; Naoharu ; et al. | 2009-04-23 |
Information record apparatus and method, and computer program product
Grant 7,518,964 - Yanagawa April 14, 2 | 2009-04-14 |
Recording Device and Method, Reproducing Device and Method, Recording/Reproducing Device and Method, and Computer Program
App 20090067307 - Yanagawa; Naoharu ; et al. | 2009-03-12 |
Recording Apparatus and Recording Medium, and Computer Program
App 20090052302 - Yanagawa; Naoharu ; et al. | 2009-02-26 |
Information Recording Device and Method, and Computer Program
App 20080259755 - Yanagawa; Naoharu ; et al. | 2008-10-23 |
Optical recording device and aberration correction method
Grant 7,436,742 - Yanagawa October 14, 2 | 2008-10-14 |
Optical Pickup Device, and Information Recording and Reproduction Device
App 20070247997 - Yanagawa; Naoharu ; et al. | 2007-10-25 |
Device and method for controlling tilt servo
Grant 7,154,831 - Yanagawa , et al. December 26, 2 | 2006-12-26 |
Error counting apparatus for counting an error number of a pre-pit signal in an optical disc and method therefor
Grant 7,099,255 - Kato , et al. August 29, 2 | 2006-08-29 |
Information recording medium and information recording device
App 20060120232 - Yanagawa; Naoharu ; et al. | 2006-06-08 |
Device and method for controlling tilt servo
Grant 7,042,818 - Yanagawa , et al. May 9, 2 | 2006-05-09 |
Linking gap detecting device and method of optical recording medium
Grant 7,016,285 - Yanagawa , et al. March 21, 2 | 2006-03-21 |
Device and method for controlling tilt servo
Grant 6,975,574 - Yanagawa , et al. December 13, 2 | 2005-12-13 |
Device and method for controlling tilt servo
App 20050270924 - Yanagawa, Naoharu ; et al. | 2005-12-08 |
Information record apparatus and method, and computer program product
App 20050249074 - Yanagawa, Naoharu | 2005-11-10 |
Device and method for controlling tilt servo
App 20050243673 - Yanagawa, Naoharu ; et al. | 2005-11-03 |
Information recording apparatus and method, and computer program product
App 20050237884 - Yanagawa, Naoharu | 2005-10-27 |
Aperture ratio measuring apparatus for optical recording medium with pre-pits
Grant 6,956,802 - Kato , et al. October 18, 2 | 2005-10-18 |
Apparatus For Adjusting Signal Levels Derived From An Optical Disc To Become Equal To A Reference Level Determined From At Least One Of The Signal Levels Of The Signals And For Synthesizing The Signals
Grant 6,954,418 - Yanagawa , et al. October 11, 2 | 2005-10-11 |
Pre-pit detecting apparatus for optical recording medium
Grant 6,928,041 - Kato , et al. August 9, 2 | 2005-08-09 |
Device and method for controlling tilt servo
Grant 6,925,039 - Yanagawa , et al. August 2, 2 | 2005-08-02 |
Data reading device and pre-pit detection circuit
App 20050117503 - Yanagawa, Naoharu ; et al. | 2005-06-02 |
Apparatus and method for re-executing pre-pit detection if pre-pits are not detected after changing reference level
Grant 6,891,784 - Yanagawa , et al. May 10, 2 | 2005-05-10 |
Optical recording device and aberration correction method
App 20050094535 - Yanagawa, Naoharu | 2005-05-05 |
Optical device including a calibrating unit for calibrating a level adjusting unit
Grant 6,865,143 - Yanagawa , et al. March 8, 2 | 2005-03-08 |
Pre-pit detecting apparatus for optical recording medium
Grant 6,801,488 - Kato , et al. October 5, 2 | 2004-10-05 |
Laser light intensity controller
Grant 6,731,662 - Yanagawa , et al. May 4, 2 | 2004-05-04 |
Laser light intensity controller
Grant 6,697,398 - Yanagawa , et al. February 24, 2 | 2004-02-24 |
Linking gap detecting device and method of optical
App 20040004924 - Yanagawa, Naoharu ; et al. | 2004-01-08 |
Information recording/reproducing apparatus, and pre-pit detecting method
App 20030072230 - Yanagawa, Naoharu ; et al. | 2003-04-17 |
Error counting apparatus and method
App 20020172120 - Kato, Masahiro ; et al. | 2002-11-21 |
Optical device and optically recorded information recording/reading apparatus
App 20020159344 - Yanagawa, Naoharu ; et al. | 2002-10-31 |
Aperture ratio measuring apparatus for optical recording medium with pre-pits
App 20020123862 - Kato, Masahiro ; et al. | 2002-09-05 |
Apparatus for synthesizing signals derived from an optical disc
App 20020114261 - Yanagawa, Naoharu ; et al. | 2002-08-22 |
Pre-pit detecting apparatus for optical recording medium
App 20020114249 - Kato, Masahiro ; et al. | 2002-08-22 |
Pre-pit detecting apparatus for optical recording medium
App 20020114248 - Kato, Masahiro ; et al. | 2002-08-22 |
Optical pickup device minimizing an undesirable astigmatism
App 20020071365 - Yanagawa, Naoharu | 2002-06-13 |
Device and method for controlling tilt servo
App 20020071364 - Yanagawa, Naoharu ; et al. | 2002-06-13 |
Device and method for controlling tilt servo
App 20020067672 - Yanagawa, Naoharu ; et al. | 2002-06-06 |
Laser light intensity controller
App 20020044577 - Yanagawa, Naoharu ; et al. | 2002-04-18 |
Laser light intensity controller
App 20020044576 - Yanagawa, Naoharu ; et al. | 2002-04-18 |
Optical Pickup Device
App 20010048063 - YANAGAWA, NAOHARU ; et al. | 2001-12-06 |
Optical pickup device
App 20010026522 - Yanagawa, Naoharu | 2001-10-04 |
Optical pickup for recording or reproducing system
App 20010024417 - Yanagawa, Naoharu ; et al. | 2001-09-27 |
Device for controlling the power of a recording optical beam in an information storage apparatus
Grant 6,246,660 - Yanagawa June 12, 2 | 2001-06-12 |
Floating optical pickup and information recording and reproducing apparatus including the same
Grant 6,160,768 - Yanagawa December 12, 2 | 2000-12-12 |
Pickup for an optical system including a blazed hologram for dividing a laser
Grant 6,088,310 - Yanagawa July 11, 2 | 2000-07-11 |
Optical information recording and reproducing apparatus
Grant 6,075,759 - Yanagawa , et al. June 13, 2 | 2000-06-13 |
Optical pickup apparatus having means to eliminate crosstalk in a focus error signal
Grant 5,610,883 - Yanagawa March 11, 1 | 1997-03-11 |
Position control system for a read-write head of a magneto-optical disc player having heads which move independently from each other
Grant 5,371,725 - Yanagawa , et al. December 6, 1 | 1994-12-06 |
Optical head having a prism for splitting a beam of light into two polarized light beams
Grant 5,132,950 - Sato , et al. July 21, 1 | 1992-07-21 |
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