Inventor
Junichi Kumasako
Inventor
Kawasaki, JP
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Bprimary
H04BTransmission88%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light13%
PatentTitleYear
7,936,993'Chromatic dispersion compensating apparatus'20117,751,706'Chromatic dispersion compensating apparatus'20107,466,920'Chromatic dispersion compensating apparatus'20087,372,622'Optical transmission system, optical repeater, and optical transmission method'20087,307,782'Raman amplifier and optical communication system including the same'20077,075,709'Optical transmission system, optical repeater, and optical transmission method'20066,941,074'Bidirectionally transmittable optical wavelength division multiplexed transmission system'20056,741,389'Optical transmission system and optical transmission method utilizing Raman amplification'2004Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2004–2011Patents assigned to FUJITSU LTD (7)· patent assignee history
2004–2008Based in Kawasaki, JP· patent location history
2007Patents assigned to FUJITU LTD (1)· patent assignee history
2007Patents assigned to SUMITOMO ELECTRIC INDUSTRIES (1)· patent assignee history
2008–2011Based in Yasu, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJITSU LTD | 7 | 2004–2011 |
| FUJITU LTD | 1 | 2007 |
| SUMITOMO ELECTRIC INDUSTRIES | 1 | 2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kawasaki, JP | 5 | 2004–2008 |
| Yasu, JP | 3 | 2008–2011 |