Inventor
Kazuaki Otsuka
Inventor
Kanagawa, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Wprimary
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1029%
C09KMaterials for miscellaneous applications, not provided for elsewhere21%
H10HInorganic light-emitting semiconductor devices having potential barriers21%
B41JTypewriters7%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables7%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light7%
H05BElectric heating7%
PatentTitleYear
10,913,292Recording apparatus20218,106,579'Semiconductor light emitting device'20127,808,007'Optical semiconductor device'20107,611,780'Lighting device, image pickup apparatus and portable terminal unit'20097,201,858'Fluorescent substance, method of manufacturing fluorescent substance, and light emitting device using the fluorescent substance'20075,321,716'Distributed Feedback semiconductor laser with controlled phase shift'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994–2012Patents assigned to TOSHIBA KK (4)· patent assignee history
1994Based in Yokohama, JP· patent location history
2007Patents assigned to TOSHIBA MATERIALS CO LTD (1)· patent assignee history
2007–2009Based in Yokosuka, JP· patent location history
2010–2012Based in Kanagawa, JP· patent location history
2012Patents assigned to OTSUKA KAZUAKI (1)· patent assignee history
2021Patents assigned to SEIKO EPSON CORP (1)· patent assignee history
2021Based in Azumino, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOSHIBA KK | 4 | 1994–2012 |
| OTSUKA KAZUAKIself | 1 | 2012 |
| SEIKO EPSON CORP | 1 | 2021 |
| TOSHIBA MATERIALS CO LTD | 1 | 2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 2 | 2010–2012 |
| Yokosuka, JP | 2 | 2007–2009 |
| Azumino, JP | 1 | 2021 |
| Yokohama, JP | 1 | 1994 |