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Inventor

Ryosaku Kanzawa

Inventor
Ibaraki, JP

Overview

4→
Patents
1981–1991
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

G01Lprimary
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure43%
B41JTypewriters14%
H10DInorganic electric semiconductor devices14%
H10HInorganic light-emitting semiconductor devices having potential barriers14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
4,984,035'Monolithic light emitting diode array'19914,556,807'Pressure transducer with temperature compensation circuit'19854,550,612'Integrated pressure sensor'19854,291,293'Semiconductor absolute pressure transducer assembly and method'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1985Patents assigned to HITACHI LTD (3)· patent assignee history
1981–1991Based in Ibaraki, JP· patent location history
1985Based in Hitachi, JP· patent location history
1991Patents assigned to HITACHI CABLE (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD31981–1985
HITACHI CABLE11991
Locations
LocationPatentsSpan
Ibaraki, JP21981–1991
Hitachi, JP21985