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Inventor

Seiichiro Kawashima

Inventor
Kanagawa, JP

Overview

3→
Patents
1999–2008
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.

H04Bprimary
H04BTransmission67%
H03CModulation33%
PatentTitleYear
7,382,986'Signal converter, optical transmitter and optical fiber transmission system'20086,556,327'Signal converter, optical transmitter and optical fiber transmission system'20035,973,820'FM modulation device'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2008Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (3)· patent assignee history
1999Patents assigned to NIPPON TELEGRAPH & TELEPHONE (1)· patent assignee history
1999Based in Yokohama, JP· patent location history
2003–2008Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD31999–2008
NIPPON TELEGRAPH & TELEPHONE11999
Locations
LocationPatentsSpan
Kanagawa, JP22003–2008
Yokohama, JP11999