Inventor
Akira Naka
Inventor
Yokosuka, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Bprimary
H04BTransmission78%
H04JMultiplex communication11%
H04LTransmission of digital information, e.g. telegraphic communication11%
PatentTitleYear
9,749,061'Digital signal processing device'20179,692,543'Optical transmission system'20177,792,430'Automatic power restoring method and optical communication system'20107,664,392'Automatic power restoring method and optical communication system'20107,437,069'Automatic power restoring method and optical communication system'20087,420,666'Measurement method by OTDR and terminal station apparatus'20087,215,415'Measurement method by OTDR and terminal station apparatus'2007Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2007–2017Patents assigned to NIPPON TELEGRAPH & TELEPHONE (6)· patent assignee history
2007–2010Based in Yokosuka, JP· patent location history
2008–2010Patents assigned to FUJITSU LTD (4)· patent assignee history
2017Based in Musashino, JP· patent location history
2017Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON TELEGRAPH & TELEPHONE | 6 | 2007–2017 |
| FUJITSU LTD | 4 | 2008–2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokosuka, JP | 5 | 2007–2010 |
| Musashino, JP | 1 | 2017 |
| Tokyo, JP | 1 | 2017 |