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Inventor

Keiji Okahashi

Inventor
Ise, JP

Overview

2→
Patents
1983–1987
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

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

H01Hprimary
H01HElectric switches50%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests25%
Y10TTechnical subjects covered by former us classification25%
PatentTitleYear
4,688,010'Electromagnetic relay'19874,374,311'Electrical multilayer contact'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1987Patents assigned to MATSUSHITA ELECTRIC WORKS LTD (2)· patent assignee history
1983Based in Hirakata, JP· patent location history
1987Based in Ise, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC WORKS LTD21983–1987
Locations
LocationPatentsSpan
Ise, JP11987
Hirakata, JP11983