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Inventor

Tomio Yoshida

Inventor
Katano, JP

Overview

39→
Patents
1978–1995
Patent span
Physics
Primary field (CPC G)

Patents· 39 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 transducer48%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds6%
C08LCompositions of macromolecular compounds6%
G06FElectric digital data processing6%
C23CCoating metallic material4%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock4%
G02BOptical elements, systems or apparatus4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
D05BSewing2%
F16DCouplings for transmitting rotation2%
PatentTitleYear
5,444,645'Multi-channel pseudo random pattern generating device'19955,434,807'Parallel pseudo-random pattern generating method and pseudo-random pattern generator using the same'19955,408,617'Inter-system communication system for communicating between operating systems using virtual machine control program'19955,216,657'Method and apparatus for timing variable optical information recording'19935,131,273'Angular velocity sensor and a sensor apparatus incorporating the same'19925,119,363'Optical disk having an index mark'19924,912,519'Laser speckle velocity-measuring apparatus'19904,880,874'Resin of polycarbonate and graft copolymer of unsaturated epoxy monomer and ethylene-.alpha.-olefin base rubber'19894,855,355'Molding resin composition'19894,841,512'Optical disk apparatus with an erase checking function'19894,762,886'Weather resistant thermoplastic resin composition'19884,759,006'Abnormal track skipping detection and control arrangement'19884,757,111'Weather-resistant resin, and its production'19884,724,533'Optical head'19884,700,336'Optical recording and playback apparatus using plural light spots'19874,689,780'Optical recording and reproducing head'19874,679,184'Optical recording and reproducing apparatus having erasing beam spot with asymmetrical intensity distribution'19874,610,732'Method of inhibiting corrosion of zirconium or its alloy'19864,610,910'Printed circuit board, process for preparing the same and resist ink used therefor'19864,566,088'Optical and reversible recording and reproducing apparatus'19864,564,931'Optical recording and reproducing head'19864,546,462'Optical data recording and reproducing apparatus'19854,545,044'Method and apparatus for optically recording and reproducing information'19854,535,439'Optical having index mark and sector mark'19854,523,668'Power controlling apparatus using friction material'19854,523,304'Optical data recording and reproducing apparatus'19854,509,156'Semiconductor laser driving system'19854,484,319'Apparatus for locating a track on disc-like optical information carriers'19844,433,403'Optical disc recording and retrieval system'19844,426,693'Light source intensity control in an optical recording and reproducing apparatus'19844,420,828'Optical recording and/or reproducing device'19834,403,318'Apparatus and method for recording, reproducing and erasing on optical recording discs'19834,385,303'Optical recording and reproducing disc'19834,368,526'Servo control system for optical system which focuses a converging light beam on a recording disc'19834,328,506'Optical recording device'19824,297,231'Process for producing a positive electrode for a non-aqueous electrolytic cell'19814,272,651'Optical system having diode laser light source'19814,205,019'Process for producing thermoplastic resin'19804,112,021'Process for producing thermoplastic resin'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1989Patents assigned to SUMITOMO NAUGATUCK (6)· patent assignee history
1978–1989Based in Niihama, JP· patent location history
1981–1993Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (25)· patent assignee history
1981–1986Patents assigned to HITACHI LTD (4)· patent assignee history
1981–1993Based in Katano, JP· patent location history
1985–1986Based in Takahagi, JP· patent location history
1985–1992Based in Osaka, JP· patent location history
1995Patents assigned to ADVANTEST CORP (2)· patent assignee history
1995Patents assigned to FUJITSU LTD (1)· patent assignee history
1995Based in Sendai, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD251981–1993
SUMITOMO NAUGATUCK61978–1989
HITACHI LTD41981–1986
ADVANTEST CORP21995
FUJITSU LTD11995
Locations
LocationPatentsSpan
Katano, JP221981–1993
Niihama, JP61978–1989
Takahagi, JP31985–1986
Sendai, JP21995
Osaka, JP21985–1992