LexDanaLexDanabeta
Inventor

Takumi Funahashi

Inventor
Yokohama, JP

Overview

4→
Patents
1981–1988
Patent span
Electricity
Primary field (CPC H)

Patents· 4 as inventor

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

H01Hprimary
H01HElectric switches100%
PatentTitleYear
4,736,078'Method for processing vacuum switch and vacuum switch processed by the method'19884,458,121'DC Circuit breaker'19844,442,469'DC Circuit breaker apparatus'19844,246,458'Vacuum interrupter'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1984Patents assigned to TOKYO SHIBAURA ELECTRIC CO (3)· patent assignee history
1981–1988Based in Yokohama, JP· patent location history
1988Patents assigned to TOSHIBA KK (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOKYO SHIBAURA ELECTRIC CO31981–1984
TOSHIBA KK11988
Locations
LocationPatentsSpan
Yokohama, JP41981–1988