Keizo Takemasa
Inventor
Stats
- 3 US patents issued
- 7 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 3 US Patents Issued
- 7 US Applications Filed
- 8 Total Citation Count
- Mar 31, 2023 Most Recent Filing
- Mar 5, 2001 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| QD LASER, INC. | 2
| 2015
|
| NEOPHOTONICS SEMICONDUCTOR GK | 1
| 2010
|
| THE UNIVERSITY OF SHEFFIELD | 2
| 2015
|
| OKI ELECTRIC INDUSTRY CO., LTD. | 2
1 | 2001
2003 |
Inventor Addresses
| Address | Duration |
|---|---|
| Kanagawa, JP | Oct 02, 12 - Oct 02, 12 |
| Kawasaki, JP | Jan 09, 18 - Nov 19, 24 |
| Kawasaki-shi, JP | Nov 17, 16 - Oct 12, 23 |
| Tokyo, JP | Nov 01, 01 - Dec 18, 03 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| B82Y: | SPECIFIC USES OR APPLICATIONS OF NANO-STRUCTURES; MEASUREMENT OR ANALYSIS OF NANO-STRUCTURES; MANUFACTURE OR TREATMENT OF NANO-STRUCTURES | 1 |
| C09K: | MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR | 1 |
| G02B: | OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS | 1 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 12149053 | 2024 | Semiconductor device | 0 |
| 2023/0327,406 | 2023 | SEMICONDUCTOR DEVICE | 0 |
| 11764546 | 2023 | Semiconductor laser device | 0 |
| 2022/0344,906 | 2022 | OPTICAL SEMICONDUCTOR DEVICE AND SEMICONDUCTOR LASER DEVICE | 1 |
| 2022/0158,415 | 2022 | SEMICONDUCTOR LASER DEVICE | 0 |
We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level.
>
Upgrade to our Level for up to -1 portfolios!.