Inventor
Sumio Sugata
Inventor
Tokyo, JP
Overview
Patents· 2 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Sprimary
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light67%
H10HInorganic light-emitting semiconductor devices having potential barriers33%
PatentTitleYear
6,650,667'Semiconductor laser apparatus, semiconductor laser module, optical transmitter and wavelength division multiplexing communication system'20035,375,137'Semiconductor laser device featuring group III and IV compounds doped with amphoteric impurity to vary electrical resistance according to direction of crystal plane'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994–2003Patents assigned to FURUKAWA ELECTRIC CO LTD (2)· patent assignee history
1994Based in Yokohama, JP· patent location history
2003Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FURUKAWA ELECTRIC CO LTD | 2 | 1994–2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 1 | 2003 |
| Yokohama, JP | 1 | 1994 |