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Inventor

Yotsuo Ishida

Inventor
Chofu, JP

Overview

4→
Patents
1976–1978
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.

H01Tprimary
H01TSpark gaps50%
H02HEmergency protective circuit arrangements33%
H01HElectric switches17%
PatentTitleYear
4,107,754'Discharge gap device'19784,023,076'Discharge gap device'19774,012,667'Protective device for series capacitor'19773,944,886'Protection apparatus for a capacitor connected in series with an electric power circuit'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to TOKYO ELECTRIC POWER CO (1)· patent assignee history
1976Based in Ebina, JP· patent location history
1977–1978Patents assigned to MITSUBISHI ELECTRIC CORP (3)· patent assignee history
1977–1978Based in Chofu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI ELECTRIC CORP31977–1978
TOKYO ELECTRIC POWER CO11976
Locations
LocationPatentsSpan
Chofu, JP31977–1978
Ebina, JP11976