Inventor
Takashi Saka
Inventor
Nagoya, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Jprimary
H01JElectric discharge tubes or discharge lamps63%
H10HInorganic light-emitting semiconductor devices having potential barriers25%
G21KHandling of particles or ionising radiation not otherwise provided for13%
PatentTitleYear
8,344,354'Spin-polarized electron source'20135,834,791'Process of emitting highly spin-polarized electron beam and semiconductor device therefor'19985,723,871'Process of emitting highly spin-polarized electron beam and semiconductor device therefor'19985,523,572'Process of emitting highly spin-polarized electron beam and semiconductor device therefor'19965,315,127'Semiconductor device for emitting highly spin-polarized electron beam'19945,260,589'Semiconductor device having reflecting layers made of varying unit semiconductors'19935,132,750'Light-emitting diode having light reflecting layer'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–1998Patents assigned to DAIDO STEEL CO LTD (6)· patent assignee history
1992–2013Based in Nagoya, JP· patent location history
2013Patents assigned to JIN XIUGUANG (1)· patent assignee history
2013Patents assigned to KATO TOSHIHIRO (1)· patent assignee history
2013Patents assigned to NAKANISHI TSUTOMU (1)· patent assignee history
2013Patents assigned to SAKA TAKASHI (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DAIDO STEEL CO LTD | 6 | 1992–1998 |
| JIN XIUGUANG | 1 | 2013 |
| KATO TOSHIHIRO | 1 | 2013 |
| NAKANISHI TSUTOMU | 1 | 2013 |
| SAKA TAKASHIself | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Nagoya, JP | 7 | 1992–2013 |