Yukio Fukui

Person

Machida, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical head
- Patent number 6,934,228
- Issue date Aug 23, 2005
- Hitachi, Ltd.
- Takeshi Shimano
- G11 - INFORMATION STORAGE
Information Patent Grant
Information reproducing method which reproduces plural components o...
- Patent number 6,728,173
- Issue date Apr 27, 2004
- Hitachi, Ltd.
- Takeshi Shimano
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical detector having three light receiving areas
- Patent number 6,721,242
- Issue date Apr 13, 2004
- Hitachi, Ltd.
- Kunikazu Ohnishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical detector, signal processing circuit and optical information...
- Patent number 6,507,009
- Issue date Jan 14, 2003
- Hitachi, Ltd.
- Kunikazu Ohnishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head including electrical circuit which produces focus erro...
- Patent number 6,400,664
- Issue date Jun 4, 2002
- Hitachi, Ltd.
- Takeshi Shimano
- G11 - INFORMATION STORAGE
Information Patent Grant
Compact optical head including two light emitters having parallel o...
- Patent number 6,388,976
- Issue date May 14, 2002
- Hitachi, Ltd.
- Shinji Fujita
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording medium
- Patent number 6,383,595
- Issue date May 7, 2002
- Hitachi, Ltd.
- Akemi Hirotsune
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Information recording medium and information recording and reproduc...
- Patent number 6,340,555
- Issue date Jan 22, 2002
- Hitachi, Ltd.
- Makoto Miyamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording medium and information recording and reproduc...
- Patent number 6,132,932
- Issue date Oct 17, 2000
- Hitachi, Ltd.
- Makoto Miyamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup for optical disk apparatus
- Patent number 6,125,087
- Issue date Sep 26, 2000
- Hitachi, Ltd.
- Kunikazu Ohnishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Compact optical head including two light emitters having parallel o...
- Patent number 6,069,862
- Issue date May 30, 2000
- Hitachi, Ltd.
- Shinji Fujita
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk apparatus and optical head thereof
- Patent number 5,872,761
- Issue date Feb 16, 1999
- Hitachi, Ltd.
- Yasuyuki Sugi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk apparatus and optical head thereof
- Patent number 5,699,341
- Issue date Dec 16, 1997
- Hitachi, Ltd.
- Yasuyuki Sugi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical transmission and receiving module and optical communication...
- Patent number 5,555,334
- Issue date Sep 10, 1996
- Hitachi, Ltd.
- Kunikazu Ohnishi
- G02 - OPTICS
Information Patent Grant
Optical disc with phase pits and a reproducing apparatus for data r...
- Patent number 5,541,909
- Issue date Jul 30, 1996
- Hitachi, Ltd.
- Junji Nakajima
- G11 - INFORMATION STORAGE
Information Patent Grant
Tracking control apparatus for generating sawtooth tracking control...
- Patent number 5,327,407
- Issue date Jul 5, 1994
- Hitachi, Ltd.
- Motoyuki Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Phase change optical disk and method for using the same
- Patent number 5,276,670
- Issue date Jan 4, 1994
- Hitachi, Ltd.
- Hiroshi Nogami
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording method and apparatus and recording me...
- Patent number 5,107,482
- Issue date Apr 21, 1992
- Hitachi, Ltd.
- Norio Goto
- G11 - INFORMATION STORAGE
Information Patent Grant
Composite tracking servo system for optical disc apparatus with tra...
- Patent number 4,866,688
- Issue date Sep 12, 1989
- Hitachi, Ltd.
- Masatoshi Ohtake
- G11 - INFORMATION STORAGE
Information Patent Grant
Drop-out correction circuit in an apparatus for correcting time bas...
- Patent number 4,805,040
- Issue date Feb 14, 1989
- Hitachi, Ltd.
- Masuo Oku
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of recording and reproducing digital information and apparat...
- Patent number 4,783,776
- Issue date Nov 8, 1988
- Hitachi, Ltd.
- Masaji Ishigaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical reproducing apparatus
- Patent number 4,768,183
- Issue date Aug 30, 1988
- Hitachi, Ltd.
- Kunikazu Ohnishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc recording/reproducing apparatus with recorded track-se...
- Patent number 4,689,778
- Issue date Aug 25, 1987
- Hitachi, Ltd.
- Yoshio Miura
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording medium
- Patent number 4,645,712
- Issue date Feb 24, 1987
- Hitachi, Ltd.
- Masaji Ishigaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Servo circuit for a signal reproducing apparatus
- Patent number 4,580,255
- Issue date Apr 1, 1986
- Hitachi, Ltd.
- Shigeki Inoue
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical tracking system
- Patent number 4,525,823
- Issue date Jun 25, 1985
- Hitachi, Ltd.
- Toshio Sugiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Microwave oven
- Patent number 4,245,143
- Issue date Jan 13, 1981
- Hitachi Heating Appliances Co., Ltd.
- Yoshio Miura
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Inverter circuit
- Patent number 4,156,274
- Issue date May 22, 1979
- Hitachi, Ltd.
- Yukio Fukui
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Optical head
- Publication number 20040196771
- Publication date Oct 7, 2004
- Takeshi Shimano
- G11 - INFORMATION STORAGE
Information Patent Application
Optical pick-up device and optical disk apparatus
- Publication number 20040052509
- Publication date Mar 18, 2004
- Hitachi, Ltd
- Kenichi Shimada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Information reproducing method
- Publication number 20020150008
- Publication date Oct 17, 2002
- Takeshi Shimano
- G11 - INFORMATION STORAGE
Information Patent Application
Optical detector, signal processing circuit and optical information...
- Publication number 20020141301
- Publication date Oct 3, 2002
- Kunikazu Ohnishi
- G11 - INFORMATION STORAGE
Information Patent Application
Information recording medium and information recording and reproduc...
- Publication number 20020015914
- Publication date Feb 7, 2002
- Makoto Miyamoto
- G11 - INFORMATION STORAGE

Yukio Fukui

Person

Patents Grantslast 30 patents

Optical head

Information reproducing method which reproduces plural components o...

Optical detector having three light receiving areas

Optical detector, signal processing circuit and optical information...

Optical head including electrical circuit which produces focus erro...

Compact optical head including two light emitters having parallel o...

Information recording medium

Information recording medium and information recording and reproduc...

Information recording medium and information recording and reproduc...

Optical pickup for optical disk apparatus

Compact optical head including two light emitters having parallel o...

Optical disk apparatus and optical head thereof

Optical disk apparatus and optical head thereof

Optical transmission and receiving module and optical communication...

Optical disc with phase pits and a reproducing apparatus for data r...

Tracking control apparatus for generating sawtooth tracking control...

Phase change optical disk and method for using the same

Optical information recording method and apparatus and recording me...

Composite tracking servo system for optical disc apparatus with tra...

Drop-out correction circuit in an apparatus for correcting time bas...

Method of recording and reproducing digital information and apparat...

Optical reproducing apparatus

Optical disc recording/reproducing apparatus with recorded track-se...

Information recording medium

Servo circuit for a signal reproducing apparatus

Optical tracking system

Microwave oven

Inverter circuit

Patents Applicationslast 30 patents

Optical head

Optical pick-up device and optical disk apparatus

Information reproducing method

Optical detector, signal processing circuit and optical information...

Information recording medium and information recording and reproduc...