Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10354863 | Seed crystal for growth of gallium nitride bulk crystal in supercritical ammonia and fabrication method | Tadao Hashimoto, Daryl Key | 2019-07-16 |
| 10316431 | Method of growing group III nitride crystals | Tadao Hashimoto, Sierra Hoff | 2019-06-11 |
| 10287709 | Seed crystal for growth of gallium nitride bulk crystal in supercritical ammonia and fabrication method | Tadao Hashimoto, Daryl Key | 2019-05-14 |
| 10242868 | Seed crystal for growth of gallium nitride bulk crystal in supercritical ammonia and fabrication method | Tadao Hashimoto, Daryl Key | 2019-03-26 |
| 10161059 | Group III nitride bulk crystals and their fabrication method | Tadao Hashimoto | 2018-12-25 |
| 10087548 | High-pressure vessel for growing group III nitride crystals and method of growing group III nitride crystals using high-pressure vessel and group III nitride crystal | Tadao Hashimoto, Masanori Ikari | 2018-10-02 |
| 9985102 | Methods for producing improved crystallinity group III-nitride crystals from initial group III-nitride seed by ammonothermal growth | Tadao Hashimoto, Masanori Ikari | 2018-05-29 |
| 9909230 | Seed selection and growth methods for reduced-crack group III nitride bulk crystals | Tadao Hashimoto, Daryl Key | 2018-03-06 |
| 9834863 | Group III nitride bulk crystals and fabrication method | Tadao Hashimoto | 2017-12-05 |
| 9803293 | Method for producing group III-nitride wafers and group III-nitride wafers | Tadao Hashimoto, Masanori Ikari | 2017-10-31 |
| 9790617 | Group III nitride bulk crystals and their fabrication method | Tadao Hashimoto | 2017-10-17 |
| 9543393 | Group III nitride wafer and its production method | Tadao Hashimoto, Sierra Hoff | 2017-01-10 |
| 9518340 | Method of growing group III nitride crystals | Tadao Hashimoto, Sierra Hoff | 2016-12-13 |
| 9441311 | Growth reactor for gallium-nitride crystals using ammonia and hydrogen chloride | Tadao Hashimoto | 2016-09-13 |
| 9435051 | Bismuth-doped semi-insulating group III nitride wafer and its production method | Tadao Hashimoto, Sierra Hoff | 2016-09-06 |
| 9255342 | Bismuth-doped semi-insulating group III nitride wafer and its production method | Tadao Hashimoto, Sierra Hoff | 2016-02-09 |
| 9202872 | Method of growing group III nitride crystals | Tadao Hashimoto, Sierra Hoff | 2015-12-01 |
| 8921231 | Group III nitride wafer and its production method | Tadao Hashimoto, Sierra Hoff | 2014-12-30 |
| 8852341 | Methods for producing GaN nutrient for ammonothermal growth | Tadao Hashimoto, Masanori Ikari | 2014-10-07 |
| 8764903 | Growth reactor for gallium-nitride crystals using ammonia and hydrogen chloride | Tadao Hashimoto | 2014-07-01 |
| 8728234 | Methods for producing improved crystallinity group III-nitride crystals from initial group III-nitride seed by ammonothermal growth | Tadao Hashimoto, Masanori Ikari | 2014-05-20 |
| 8585822 | Method for testing group III-nitride wafers and group III-nitride wafers with test data | Tadao Hashimoto, Masanori Ikari | 2013-11-19 |
| 8557043 | Method for testing group III-nitride wafers and group III-nitride wafers with test data | Tadao Hashimoto, Masanori Ikari | 2013-10-15 |
| 8420041 | High-pressure vessel for growing group III nitride crystals and method of growing group III nitride crystals using high-pressure vessel and group III nitride crystal | Tadao Hashimoto, Masanori Ikari | 2013-04-16 |
| 8357243 | Method for testing group III-nitride wafers and group III-nitride wafers with test data | Tadao Hashimoto, Masanori Ikari | 2013-01-22 |