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Inventor

Shunji Harigae

Inventor
Neyagawa, JP

Overview

9→
Patents
1981–2021
Patent span
Physics
Primary field (CPC G)

Patents· 9 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 transducer89%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters11%
PatentTitleYear
11,005,398Motor drive controller and motor drive control method20214,523,304'Optical data recording and reproducing apparatus'19854,484,319'Apparatus for locating a track on disc-like optical information carriers'19844,426,693'Light source intensity control in an optical recording and reproducing apparatus'19844,420,828'Optical recording and/or reproducing device'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'19824,272,651'Optical system having diode laser light source'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1985Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (8)· patent assignee history
1981–1985Based in Neyagawa, JP· patent location history
1983Based in Nara, JP· patent location history
2021Patents assigned to MINEBEA MITSUMI INC (1)· patent assignee history
2021Based in Sakura, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD81981–1985
MINEBEA MITSUMI INC12021
Locations
LocationPatentsSpan
Neyagawa, JP71981–1985
Sakura, JP12021
Nara, JP11983