Inventor
Atsushi Takahara
Inventor
Kanagawa, JP
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H03Lprimary
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses20%
H04BTransmission20%
H04JMultiplex communication20%
H04LTransmission of digital information, e.g. telegraphic communication20%
H04QSelecting20%
PatentTitleYear
7,305,010'Multicast communication system'20076,643,463'Optical wavelength division multiplexing transmission network system using transmitting/receiving apparatuses having 2-input and 2-output optical path switching elements'20034,679,004'Frequency synthesizer of a phase-locked type with a sampling circuit'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to NEC CORP (1)· patent assignee history
1987Based in Tokyo, JP· patent location history
2003–2007Patents assigned to NIPPON TELEGRAPH & TELEPHONE (2)· patent assignee history
2003Based in Yokohama, JP· patent location history
2007Based in Kanagawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON TELEGRAPH & TELEPHONE | 2 | 2003–2007 |
| NEC CORP | 1 | 1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 1 | 2007 |
| Yokohama, JP | 1 | 2003 |
| Tokyo, JP | 1 | 1987 |