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Inventor

Isamu Shibata

Inventor
Fuchu, JP

Overview

13→
Patents
1977–1994
Patent span
Physics
Primary field (CPC G)

Patents· 13 as inventor

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

H01Sprimary
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light23%
G06KGraphical data reading18%
G11BInformation storage based on relative movement between record carrier and transducer18%
G02BOptical elements, systems or apparatus14%
H04NPictorial communication, e.g. television14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters5%
PatentTitleYear
5,341,355'Multibeam optical pickup and servo method thereof'19945,326,678'High dielectric polymeric optical recording medium'19945,059,774'Seek and track control for a rectangular optical card handling apparatus'19914,899,344'Semiconductor laser control apparatus'19904,856,011'Semiconductor laser control circuit'19894,763,334'Laser beam emitting apparatus'19884,729,617'Scanning clock generating device for optical scanner'19884,717,925'Optical scanner without extra convergent lens'19884,663,760'Semiconductor laser output control device'19874,618,958'Device for controlling the radiating output of a semiconductor laser'19864,585,297'Light deflector'19864,173,402'Optoelectronic sensing apparatus'19794,064,443'Control system for D.C. motor'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1994Patents assigned to RICOH KK (13)· patent assignee history
1977Based in Musashino, JP· patent location history
1979–1988Based in Tokyo, JP· patent location history
1987–1994Based in Fuchu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH KK131977–1994
Locations
LocationPatentsSpan
Fuchu, JP71987–1994
Tokyo, JP51979–1988
Musashino, JP11977