Inventor
Yuji Tochio
Inventor
Kawasaki, JP
Overview
Patents· 37 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication38%
G02BOptical elements, systems or apparatus15%
H04JMultiplex communication15%
H04QSelecting15%
H04BTransmission11%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light4%
G06FElectric digital data processing2%
H03HImpedance networks, e.g. resonant circuits2%
PatentTitleYear
10,917,350Transmission device and network system202110,848,840Communication apparatus and signal relay method202010,742,543Transmission apparatus and redundancy method202010,009,262Transmission apparatus and redundancy method20189,716,650'Communication system and transfer apparatus'20179,391,694'Protection path providing method and transmission device'20169,369,786'Optical transmission device and optical transmission network system'20169,264,283'Method of accommodating signals, frame generation apparatus, frame reception apparatus, and transmission system'20169,154,326'Transmission apparatus, failure recovery method, and network system'20159,075,769'Communication control device and communication control method'20159,048,966'Optical transmission apparatus'20158,917,592'Communication apparatus, system, and method'20148,873,380'System and method for setting redundant path segments in a multi-ring communication network'20148,737,201'Data relay apparatus, and ring-type communication system'20148,441,923'Communication path providing method and communication apparatus'20138,432,792'Node apparatus, ring network, and protection path bandwidth control method'20138,208,469'Communication system and apparatus'20128,174,963'Data relay apparatus and failure recovery method'20127,961,602'Method and device using a backup communication path to transmit excess traffic'20117,929,451'Switch and packet forwarding method'20117,912,329'Optical-switch testing apparatus, optical-signal switching apparatus, optical-switch testing method, and control method for optical-signal switching'20117,907,516'Node setting apparatus, network system, node setting method, and computer product'20117,821,971'Protection providing method and customer edge apparatus'20107,596,290'Optical-switch testing apparatus, optical-signal switching apparatus, optical-switch testing method, and control method for optical-signal switching'20097,467,171'Digital filter device'20087,398,019'Control apparatus and control method of optical signal exchanger'20087,239,773'Optical-switch testing apparatus, optical-signal switching apparatus, optical-switch testing method, and control method for optical-signal switching'20077,158,551'Driver circuit and driving method for semiconductor laser'20077,122,786'Controlling apparatus and controlling method of optical switching device'20066,968,102'Node device of optical ring network'20056,795,656'Optical transmission circuit using a semiconductor laser'20046,760,147'Control apparatus and control method of optical signal exchanger'20046,711,314'Optical switch control method and apparatus thereof'20046,563,613'Optical subscriber network, and delay measurement method'20036,429,976'Optical switch using tilt mirrors'20026,215,567'Optical transmitting apparatus and optical receiving apparatus, and optical communicating method'20016,069,892'Fixed-length cell transmission system, fixed-length cell transmitting unit, and fixed-length cell receiving unit'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2021Patents assigned to FUJITSU LTD (37)· patent assignee history
2000–2015Based in Kawasaki, JP· patent location history
2012–2016Patents assigned to TOCHIO YUJI (10)· patent assignee history
2013Patents assigned to FUJII YASUKI (1)· patent assignee history
2013Patents assigned to KANO SHINYA (1)· patent assignee history
2015Patents assigned to KATAGIRI TORU (1)· patent assignee history
2015–2021Based in Yokohama, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJITSU LTD | 37 | 2000–2021 |
| TOCHIO YUJIself | 10 | 2012–2016 |
| FUJII YASUKI | 1 | 2013 |
| KANO SHINYA | 1 | 2013 |
| KATAGIRI TORU | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kawasaki, JP | 27 | 2000–2015 |
| Yokohama, JP | 10 | 2015–2021 |