Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12264410 | Aluminum nitride crystals having low urbach energy and high transparency to deep-ultraviolet wavelengths | Robert T. Bondokov, Jianfeng Chen, Shichao Wang, Toru Kimura, Thomas Miebach +2 more | 2025-04-01 |
| 12163250 | Control of basal plane dislocations in large aluminum nitride crystals | Robert T. Bondokov, Sean P. Branagan, Kasey Hogan, Justin Mark, Jianfeng Chen | 2024-12-10 |
| 11939700 | Impurity control during formation of aluminum nitride crystals and thermal treatment of aluminum nitride crystals | Robert T. Bondokov, Jianfeng Chen, Shichao Wang, Toru Kimura, Thomas Miebach +2 more | 2024-03-26 |
| 11840773 | Aluminum nitride single crystals having controllable color and methods of forming them | Robert T. Bondokov, Jianfeng Chen, Sean P. Branagan, Shichao Wang, Toru Kimura +3 more | 2023-12-12 |
| 11555256 | Aluminum nitride crystals having low urbach energy and high transparency to deep-ultraviolet wavelengths | Robert T. Bondokov, Jianfeng Chen, Shichao Wang, Toru Kimura, Thomas Miebach +2 more | 2023-01-17 |
| 11515455 | Photon extraction from ultraviolet light-emitting devices | Ken Kitamura, Masato Toita, Hironori Ishii, Yuting Wang, Leo J. Schowalter +1 more | 2022-11-29 |
| 11384449 | Two-stage seeded growth of large aluminum nitride single crystals | Leo J. Schowalter, Robert T. Bondokov | 2022-07-12 |
| 11355664 | Aluminum nitride substrate removal for ultraviolet light-emitting devices | Leo J. Schowalter, Craig Moe | 2022-06-07 |
| 11251330 | Pseudomorphic electronic and optoelectronic devices having planar contacts | Leo J. Schowalter, Muhammad Jamil, Mark C. Mendrick, Shawn R. Gibb | 2022-02-15 |
| 11168411 | Impurity control during formation of aluminum nitride crystals and thermal treatment of aluminum nitride crystals | Robert T. Bondokov, Jianfeng Chen, Shichao Wang, Toru Kimura, Thomas Miebach +2 more | 2021-11-09 |
| 10971665 | Photon extraction from nitride ultraviolet light-emitting devices | Leo J. Schowalter, Jianfeng Chen | 2021-04-06 |
| 10854797 | Photon extraction from ultraviolet light-emitting devices | Ken Kitamura, Masato Toita, Hironori Ishii, Yuting Wang, Leo J. Schowalter +1 more | 2020-12-01 |
| 10756234 | Aluminum nitride substrate removal for ultraviolet light-emitting devices | Leo J. Schowalter, Craig Moe | 2020-08-25 |
| 10700237 | Ultraviolet light-emitting devices incorporating graded layers and compositional offsets | Craig Moe, Shawn R. Gibb, Leo J. Schowalter, Kosuke Sato, Tomohiro Morishita | 2020-06-30 |
| 10615322 | Photon extraction from nitride ultraviolet light-emitting devices | Leo J. Schowalter, Jianfeng Chen | 2020-04-07 |
| 10612156 | Two-stage seeded growth of large aluminum nitride single crystals | Leo J. Schowalter, Robert T. Bondokov | 2020-04-07 |
| 10446391 | Thick pseudomorphic nitride epitaxial layers | Leo J. Schowalter, Shawn R. Gibb, Joseph A. Smart, Shiwen Liu | 2019-10-15 |
| 10407798 | Two-stage seeded growth of large aluminum nitride single crystals | Leo J. Schowalter, Robert T. Bondokov | 2019-09-10 |
| 10347805 | Photon extraction from ultraviolet light-emitting devices | Ken Kitamura, Masato Toita, Hironori Ishii, Yuting Wang, Leo J. Schowalter +1 more | 2019-07-09 |
| 10211369 | Ultraviolet light-emitting devices incorporating two-dimensional hole gases | Craig Moe, Shawn R. Gibb, Leo J. Schowalter, Kosuke Sato, Tomohiro Morishita | 2019-02-19 |
| 10211368 | Ultraviolet light-emitting devices incorporating graded layers and compositional offsets | Craig Moe, Shawn R. Gibb, Leo J. Schowalter, Kosuke Sato, Tomohiro Morishita | 2019-02-19 |
| 10074784 | Photon extraction from nitride ultraviolet light-emitting devices | Leo J. Schowalter, Jianfeng Chen | 2018-09-11 |
| 9935247 | Photon extraction from ultraviolet light-emitting devices | Ken Kitamura, Masato Toita, Hironori Ishii, Yuting Wang, Leo J. Schowalter +1 more | 2018-04-03 |
| 9806227 | Ultraviolet light-emitting devices incorporating graded layers and compositional offsets | Craig Moe, Shawn R. Gibb, Leo J. Schowalter, Kosuke Sato, Tomohiro Morishita | 2017-10-31 |
| 9680057 | Ultraviolet light-emitting devices incorporating two-dimensional hole gases | Craig Moe, Shawn R. Gibb, Leo J. Schowalter, Kosuke Sato, Tomohiro Morishita | 2017-06-13 |