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Inventor

Yukio Fukui

Inventor
Machida, JP

Overview

45→
Patents
1979–2019
Patent span
Physics
Primary field (CPC G)

Patents· 45 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer20%
G06FElectric digital data processing9%
G06TImage data processing or generation, in general8%
A63FCard, board, or roulette games7%
B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general7%
G08BSignalling systems, e.g. personal calling systems7%
G09GArrangements or circuits for control of indicating devices using static means to present variable information7%
G10KSound-producing devices7%
H04BTransmission7%
G05DSystems for controlling or regulating non-electric variables6%
PatentTitleYear
10,416,767Haptic information presentation system and method201910,216,278Haptic information presentation system and method20199,495,803'Haptic information presentation system and method'20169,495,804'Haptic information presentation system and method'20169,171,437'Haptic information presentation system and method'20159,142,104'Haptic information presentation system and method'20159,135,791'Haptic information presentation system and method'20159,041,520'Haptic information presentation system and method'20157,962,371'Commodity presenting method and system therefor'20117,653,565'Processing program edition conferencing method and system'20107,487,117'Sales support system'20097,003,371'Apparatus for processing electronic drawing data'20066,970,754'Sales supporting apparatus'20056,934,228'Optical head'20056,728,173'Information reproducing method which reproduces plural components of a focus error signal and a tracking error signal from plural detection regions of plural reflected light beams'20046,721,242'Optical detector having three light receiving areas'20046,507,009'Optical detector, signal processing circuit and optical information reproduction apparatus thereof'20036,400,664'Optical head including electrical circuit which produces focus error signal and tracking error signal unaffected by variations in intensity distributions of reflected light beams'20026,388,976'Compact optical head including two light emitters having parallel optical axes'20026,383,595'Information recording medium'20026,340,555'Information recording medium and information recording and reproducing apparatus using the same'20026,132,932'Information recording medium and information recording and reproducing apparatus using the same'20006,125,087'Optical pickup for optical disk apparatus'20006,069,862'Compact optical head including two light emitters having parallel optical axes'20005,872,761'Optical disk apparatus and optical head thereof'19995,754,433'Computer-aided design system'19985,699,341'Optical disk apparatus and optical head thereof'19975,555,334'Optical transmission and receiving module and optical communication system using the same'19965,541,909'Optical disc with phase pits and a reproducing apparatus for data recorded on the optical disc'19965,412,770'Cad free-form reshaping method'19955,327,407'Tracking control apparatus for generating sawtooth tracking control signal from sinusoidal tracking error signal'19945,276,670'Phase change optical disk and method for using the same'19945,107,482'Optical information recording method and apparatus and recording medium used therefor'19924,866,688'Composite tracking servo system for optical disc apparatus with track offset correction'19894,805,040'Drop-out correction circuit in an apparatus for correcting time base error with inhibition of time-base information during dropout'19894,783,776'Method of recording and reproducing digital information and apparatus therefor'19884,772,114'Dynamic optometer'19884,768,183'Optical reproducing apparatus'19884,689,778'Optical disc recording/reproducing apparatus with recorded track-section detector'19874,645,712'Information recording medium'19874,580,255'Servo circuit for a signal reproducing apparatus'19864,550,294'Pattern indication using laser beam'19854,525,823'Optical tracking system'19854,245,143'Microwave oven'19814,156,274'Inverter circuit'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–2005Patents assigned to HITACHI LTD (27)· patent assignee history
1981–1986Based in Yokohama, JP· patent location history
1985–1998Patents assigned to AGENCY IND SCIENCE TECHN (4)· patent assignee history
1985–2019Based in Ibaraki, JP· patent location history
1987–2005Based in Machida, JP· patent location history
1987–2002Based in Tokyo, JP· patent location history
2000–2004Patents assigned to HITACHI MEDIA ELECTRON KK (4)· patent assignee history
2005–2011Patents assigned to AMADA CO LTD (4)· patent assignee history
2006–2011Based in Isehara, JP· patent location history
2015–2019Patents assigned to MIRAISENS INC (7)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD271979–2005
MIRAISENS INC72015–2019
AGENCY IND SCIENCE TECHN41985–1998
AMADA CO LTD42005–2011
HITACHI MEDIA ELECTRON KK42000–2004
Locations
LocationPatentsSpan
Machida, JP141987–2005
Ibaraki, JP91985–2019
Tokyo, JP91987–2002
Isehara, JP32006–2011
Yokohama, JP31981–1986