Inventor
Yuji Obana
Inventor
Shimotsuga-gun, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Jprimary
H04JMultiplex communication44%
H04LTransmission of digital information, e.g. telegraphic communication33%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses11%
H04BTransmission11%
PatentTitleYear
9,735,907'Transmission device'20178,606,118'Optical digital coherent receiver'20138,000,429'Jitter correction method and circuit'20117,397,882'Digital phase locked circuit capable of dealing with input clock signal provided in burst fashion'20086,788,684'Cell bridge apparatus and cell bridging method as well as information transmission system having cell bridge apparatus'20045,136,587'Digital signal multiplexing apparatus and demultiplexing apparatus'19925,001,711'Complex multiplexer/demultiplexer apparatus'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–2017Patents assigned to FUJITSU LTD (7)· patent assignee history
1991–2017Based in Shimotsuga-gun, JP· patent location history
1992Based in Mibu, JP· patent location history
2004–2008Based in Yokohama, JP· patent location history
2011–2013Based in Kawasaki, JP· patent location history
2013Patents assigned to HATAE KAZUHIKO (1)· patent assignee history
2013Patents assigned to KOIZUMI NOBUKAZU (1)· patent assignee history
2013Patents assigned to NAKAYAMA NORIYASU (1)· patent assignee history
2013Patents assigned to OBANA YUJI (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJITSU LTD | 7 | 1991–2017 |
| HATAE KAZUHIKO | 1 | 2013 |
| KOIZUMI NOBUKAZU | 1 | 2013 |
| NAKAYAMA NORIYASU | 1 | 2013 |
| OBANA YUJIself | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Shimotsuga-gun, JP | 2 | 1991–2017 |
| Kawasaki, JP | 2 | 2011–2013 |
| Yokohama, JP | 2 | 2004–2008 |
| Mibu, JP | 1 | 1992 |