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Inventor

Tetsuo Ohishi

Inventor
Ise, JP

Overview

4→
Patents
1981–1993
Patent span
Electricity
Primary field (CPC H)

Patents· 4 as inventor

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

H02Kprimary
H02KDynamo-electric machines33%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients17%
F16CShafts17%
G03GElectrography17%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters17%
PatentTitleYear
5,237,229'Magnetic bearing device with a rotating magnetic field'19934,947,209'Copying machine control apparatus'19904,837,493'System for driving drum'19894,298,522'Diphenylamine derivatives and degradation inhibitors for rubber polymers'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to NIPPON ZEON CO (1)· patent assignee history
1981Based in Tokyo, JP· patent location history
1989–1993Patents assigned to SHINKO ELECTRIC CO LTD (3)· patent assignee history
1989–1993Based in Ise, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHINKO ELECTRIC CO LTD31989–1993
NIPPON ZEON CO11981
Locations
LocationPatentsSpan
Ise, JP31989–1993
Tokyo, JP11981