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Inventor

Ikuo Yokoyama

Inventor
Nobeoka, JP

Overview

5→
Patents
1988–1995
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 5 as inventor

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

F16Kprimary
F16KValves38%
Y10TTechnical subjects covered by former us classification31%
G05DSystems for controlling or regulating non-electric variables23%
F16LPipes8%
PatentTitleYear
5,476,118'Non-stagnant piping system'19955,312,085'Control valve'19945,181,539'Ball valve'19935,174,332'Constant flow valve'19924,791,956'Constant flow valve'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1995Patents assigned to ASAHI ORGANIC CHEM IND (5)· patent assignee history
1988–1995Based in Nobeoka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ASAHI ORGANIC CHEM IND51988–1995
Locations
LocationPatentsSpan
Nobeoka, JP51988–1995