Shigeaki Wachi

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing tubular carbon molecule and tubular carbon...
- Patent number 7,892,063
- Issue date Feb 22, 2011
- Sony Corporation
- Dharam Pal Gosain
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method of manufacturing tubular carbon molecule and tubular carbon...
- Patent number 7,828,620
- Issue date Nov 9, 2010
- Sony Corporation
- Dharam Pal Gosain
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical disk capable of inhibiting from rental use
- Patent number 6,038,207
- Issue date Mar 14, 2000
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Temperature invariant, magneto-optic modulator coil driving circuit
- Patent number 5,970,026
- Issue date Oct 19, 1999
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus and method for adjusting a rotational velocity of a disk...
- Patent number 5,712,836
- Issue date Jan 27, 1998
- Sony Corporation
- Hidetoshi Kamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk capable of storing information data at difference cloc...
- Patent number 5,708,649
- Issue date Jan 13, 1998
- Sony Corporation
- Hidetoshi Kamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus and method for reproducing data from a record medium
- Patent number 5,640,383
- Issue date Jun 17, 1997
- Sony Corporation
- Hidetoshi Kamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium and recording and/or reproducing apparatus...
- Patent number 5,537,374
- Issue date Jul 16, 1996
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium and recording and/or reproducing apparatus...
- Patent number 5,504,727
- Issue date Apr 2, 1996
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium and recording and/or reproducing apparatus...
- Patent number 5,487,056
- Issue date Jan 23, 1996
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Seek circuit for optical disc
- Patent number 5,471,444
- Issue date Nov 28, 1995
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Seek control for information storage disc drive
- Patent number 5,471,447
- Issue date Nov 28, 1995
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
System for calculating focus servo control signal using focus error...
- Patent number 5,379,282
- Issue date Jan 3, 1995
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording and reproducing apparatus that cancels recording...
- Patent number 5,224,085
- Issue date Jun 29, 1993
- Sony Corporation
- Hiroyuki Shinkai
- G11 - INFORMATION STORAGE
Information Patent Grant
Spindle servo system for magneto-optical recording/playback apparatus
- Patent number 5,224,086
- Issue date Jun 29, 1993
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording medium with unembossed area indicating sector divisions
- Patent number 5,170,385
- Issue date Dec 8, 1992
- Sony Corporation
- Susumu Senshu
- 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
Information Patent Grant
Detrack detecting system in an optical recording/reproducing apparatus
- Patent number 5,148,424
- Issue date Sep 15, 1992
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Servo control circuit for optical disc apparatus
- Patent number 5,138,595
- Issue date Aug 11, 1992
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Linear motor
- Patent number 5,121,016
- Issue date Jun 9, 1992
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Servo circuit for an optical disk information recording and reprodu...
- Patent number 5,079,757
- Issue date Jan 7, 1992
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Seek apparatus for optical disc drive
- Patent number 5,056,072
- Issue date Oct 8, 1991
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Actuator driving circuits
- Patent number 5,015,932
- Issue date May 14, 1991
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for recording and reproducing information on an optical d...
- Patent number 5,003,523
- Issue date Mar 26, 1991
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk drive with servo loop for detecting defective disks
- Patent number 4,972,398
- Issue date Nov 20, 1990
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
System and method for accessing tracks for optical disc apparatus
- Patent number 4,951,272
- Issue date Aug 21, 1990
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Light beam control arrangements for optical disc apparatus
- Patent number 4,896,310
- Issue date Jan 23, 1990
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Control circuits operating with pulse-width modulated signals
- Patent number 4,820,940
- Issue date Apr 11, 1989
- Sony Corporation
- Shigeaki Wachi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Apparatus for driving a recording medium at a constant speed relati...
- Patent number 4,652,799
- Issue date Mar 24, 1987
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE
Information Patent Grant
Servo system
- Patent number 4,647,828
- Issue date Mar 3, 1987
- Sony Corporation
- Shigeaki Wachi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MANUFACTURING TUBULAR CARBON MOLECULE AND TUBULAR CARBON...
- Publication number 20090121605
- Publication date May 14, 2009
- SONY CORPORATION
- Dharam Pal Gosain
- B82 - NANO-TECHNOLOGY
Information Patent Application
Production method for tubular carbon molecule and tubular carbon mo...
- Publication number 20060108906
- Publication date May 25, 2006
- Dharam Pal Gosain
- B82 - NANO-TECHNOLOGY
Information Patent Application
Electrochemical device and gas storage apparatus
- Publication number 20050077172
- Publication date Apr 14, 2005
- Shigeaki Wachi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Shigeaki Wachi

Person

Patents Grantslast 30 patents

Method of manufacturing tubular carbon molecule and tubular carbon...

Method of manufacturing tubular carbon molecule and tubular carbon...

Optical disk capable of inhibiting from rental use

Temperature invariant, magneto-optic modulator coil driving circuit

Apparatus and method for adjusting a rotational velocity of a disk...

Optical disk capable of storing information data at difference cloc...

Apparatus and method for reproducing data from a record medium

Optical recording medium and recording and/or reproducing apparatus...

Optical recording medium and recording and/or reproducing apparatus...

Optical recording medium and recording and/or reproducing apparatus...

Seek circuit for optical disc

Seek control for information storage disc drive

System for calculating focus servo control signal using focus error...

Optical recording and reproducing apparatus that cancels recording...

Spindle servo system for magneto-optical recording/playback apparatus

Recording medium with unembossed area indicating sector divisions

Magnetic head lifting device for magneto-optical recording/reproduc...

Detrack detecting system in an optical recording/reproducing apparatus

Servo control circuit for optical disc apparatus

Linear motor

Servo circuit for an optical disk information recording and reprodu...

Seek apparatus for optical disc drive

Actuator driving circuits

Apparatus for recording and reproducing information on an optical d...

Optical disk drive with servo loop for detecting defective disks

System and method for accessing tracks for optical disc apparatus

Light beam control arrangements for optical disc apparatus

Control circuits operating with pulse-width modulated signals

Apparatus for driving a recording medium at a constant speed relati...

Servo system

Patents Applicationslast 30 patents

METHOD OF MANUFACTURING TUBULAR CARBON MOLECULE AND TUBULAR CARBON...

Production method for tubular carbon molecule and tubular carbon mo...

Electrochemical device and gas storage apparatus