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Inventor

Yasuyuki Shingu

Inventor
Kanagawa, JP

Overview

3→
Patents
1988–2005
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 3 as inventor

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

Y10Tprimary
Y10TTechnical subjects covered by former us classification33%
F04BPositive-displacement machines for liquids17%
F16KValves17%
G05DSystems for controlling or regulating non-electric variables17%
H01FMagnets17%
PatentTitleYear
6,968,859'Electromagnetic operating device'20054,801,247'Variable displacement piston pump'19894,724,865'Control circuit for proportional electro-hydraulic fluid control valves'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2005Patents assigned to YUKEN KOGYO CO LTD (3)· patent assignee history
1988–2005Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
YUKEN KOGYO CO LTD31988–2005
Locations
LocationPatentsSpan
Kanagawa, JP31988–2005