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Inventor

Jun-ichi Yasuma

Inventor
Saitama, JP

Overview

4→
Patents
1989–1991
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.

Y10Tprimary
Y10TTechnical subjects covered by former us classification38%
G05DSystems for controlling or regulating non-electric variables25%
F15BSystems acting by means of fluids in general13%
G06KGraphical data reading13%
H01RElectrically-conductive connections13%
PatentTitleYear
5,062,454'Spool control valve'19914,971,114'Electromagnetic proportional pressure control valve'19904,875,501'Electromagnetic proportional control valve apparatus'19894,839,509'Connector device for connecting IC card to reading and/or writing apparatus'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1990Patents assigned to DIESEL KIKI CO (3)· patent assignee history
1989Based in Higashimatsuyama, JP· patent location history
1990–1991Based in Saitama, JP· patent location history
1991Patents assigned to DIESEL KIKI CO L T D (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DIESEL KIKI CO31989–1990
DIESEL KIKI CO L T D11991
Locations
LocationPatentsSpan
Saitama, JP21990–1991
Higashimatsuyama, JP21989