LexDanaLexDanabeta
Inventor

Junjiro Kitano

Inventor
Yokohama, JP

Overview

6→
Patents
1981–1988
Patent span
Electricity
Primary field (CPC H)

Patents· 6 as inventor

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

H04Mprimary
H04MTelephonic communication50%
H03KPulse technique33%
H10DInorganic electric semiconductor devices17%
PatentTitleYear
4,794,441'Semiconductor switch circuit'19884,465,967'Current supply circuit'19844,385,336'Current supplying circuit with shorted-to-ground fault detecting function'19834,380,021'Semiconductor integrated circuit'19834,360,709'Loop detecting circuit'19824,277,696'Semiconductor switch circuit'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1988Patents assigned to HITACHI LTD (6)· patent assignee history
1981–1983Based in Yokohama, JP· patent location history
1983–1988Patents assigned to NIPPON TELEGRAPH & TELEPHONE (3)· patent assignee history
1984–1988Based in Fujisawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD61981–1988
NIPPON TELEGRAPH & TELEPHONE31983–1988
Locations
LocationPatentsSpan
Yokohama, JP41981–1983
Fujisawa, JP21984–1988