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Inventor

Shuji Fujitsuka

Inventor
Hino, JP

Overview

3→
Patents
1998–2004
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
H04QSelecting60%
H04MTelephonic communication40%
PatentTitleYear
6,731,721'Telephone exchange apparatus'20046,243,442'Telephone exchange apparatus'20015,825,866'Private electronic exchange apparatus having a plurality of extension terminals and office line terminals'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2001Patents assigned to TOSHIBA KK (2)· patent assignee history
1998Based in Tokyo, JP· patent location history
2001–2004Based in Hino, JP· patent location history
2004Patents assigned to KABUHSIKI KAISHA TOSHIBA (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOSHIBA KK21998–2001
KABUHSIKI KAISHA TOSHIBA12004
Locations
LocationPatentsSpan
Hino, JP22001–2004
Tokyo, JP11998