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Inventor

Shigefumi Hosokawa

Inventor
Saitama, JP

Overview

3→
Patents
1991–1996
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

H04Qprimary
H04QSelecting38%
H02BBoards, substations or switching arrangements for the supply or distribution of electric power25%
G02BOptical elements, systems or apparatus13%
H05KPrinted circuits13%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
5,544,004'Pin-board matrix switch'19965,204,921'Automated optical main distributing frame system'19935,017,145'Matrix switching device and method of manufacturing the same'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1996Patents assigned to NIPPON TELEGRAPH & TELEPHONE (3)· patent assignee history
1991Based in Iruma, JP· patent location history
1993–1996Based in Saitama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON TELEGRAPH & TELEPHONE31991–1996
Locations
LocationPatentsSpan
Saitama, JP21993–1996
Iruma, JP11991