Inventor

Esao Hishinuma

Inventor

Tokyo, JP

Overview

1→

Patents

1980

Patent span

Electricity

Primary field (CPC H)

Patents· 1 as inventor

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

H04Mprimary

H04MTelephonic communication50%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use50%

PatentTitleYear

4,233,474'Telephone transmitter amplifier'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980Patents assigned to NIPPON ELECTRIC CO (1)· patent assignee history

1980Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON ELECTRIC CO	1	1980

Locations

Location	Patents	Span
Tokyo, JP	1	1980