Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12107129 | Self-standing GaN substrate, GaN crystal, method for producing GaN single crystal, and method for producing semiconductor device | Satoru Nagao, Yusuke Tsukada, Shuichi Kubo, Hirotaka Ikeda, Kenji Fujito +3 more | 2024-10-01 |
| 11670687 | Gallium nitride substrate and manufacturing method of nitride semiconductor crystal | Yusuke Tsukada, Shuichi Kubo, Hideo Fujisawa, Tatsuhiro Ohata, Hirotaka Ikeda +2 more | 2023-06-06 |
| 11664428 | Self-standing GaN substrate, GaN crystal, method for producing GaN single crystal, and method for producing semiconductor device | Satoru Nagao, Yusuke Tsukada, Shuichi Kubo, Hirotaka Ikeda, Kenji Fujito +3 more | 2023-05-30 |
| 11162190 | Method for producing nitride crystal and nitride crystal | Yutaka Mikawa, Hideo Fujisawa, Hirobumi Nagaoka, Shinichiro Kawabata, Yuji Kagamitani | 2021-11-02 |
| 11038024 | Self-standing GaN substrate, GaN crystal, method for producing GaN single crystal, and method for producing semiconductor device | Satoru Nagao, Yusuke Tsukada, Shuichi Kubo, Hirotaka Ikeda, Kenji Fujito +3 more | 2021-06-15 |
| 11031475 | Self-standing GaN substrate, GaN crystal, method for producing GaN single crystal, and method for producing semiconductor device | Satoru Nagao, Yusuke Tsukada, Shuichi Kubo, Hirotaka Ikeda, Kenji Fujito +3 more | 2021-06-08 |
| 10995421 | Crystal of nitride of group-13 metal on periodic table, and method for producing the same | Yutaka Mikawa, Hideo Namita, Hirotaka Ikeda, Hideo Fujisawa, Atsuhiko Kojima | 2021-05-04 |
| 10734485 | Gallium nitride substrate and manufacturing method of nitride semiconductor crystal | Yusuke Tsukada, Shuichi Kubo, Hideo Fujisawa, Tatsuhiro Ohata, Hirotaka Ikeda +2 more | 2020-08-04 |
| 10655244 | GaN substrate, method for producing GaN substrate, method for producing GaN crystal, and method for manufacturing semiconductor device | Yusuke Tsukada, Satoru Nagao, Masayuki Tashiro, Kenji Fujito, Hideo Fujisawa +3 more | 2020-05-19 |
| 10526726 | Method for producing nitride crystal and nitride crystal | Yutaka Mikawa, Hideo Fujisawa, Hirobumi Nagaoka, Shinichiro Kawabata, Yuji Kagamitani | 2020-01-07 |
| 10475887 | Self-standing GaN substrate, GaN crystal, method for producing GaN single crystal, and method for producing semiconductor device | Satoru Nagao, Yusuke Tsukada, Shuichi Kubo, Hirotaka Ikeda, Kenji Fujito +3 more | 2019-11-12 |
| 10309038 | Crystal of nitride of group-13 metal on periodic table, and method for producing the same | Yutaka Mikawa, Hideo Namita, Hirotaka Ikeda, Hideo Fujisawa, Atsuhiko Kojima | 2019-06-04 |
| 10066319 | GaN substrate, method for producing GaN substrate, method for producing GaN crystal, and method for manufacturing semiconductor device | Yusuke Tsukada, Satoru Nagao, Masayuki Tashiro, Kenji Fujito, Hideo Fujisawa +3 more | 2018-09-04 |
| 9890474 | Crystal of nitride of group-13 metal on periodic table, and method for producing the same | Yutaka Mikawa, Hideo Namita, Hirotaka Ikeda, Hideo Fujisawa, Atsuhiko Kojima | 2018-02-13 |
| 9673046 | Gallium nitride substrate and manufacturing method of nitride semiconductor crystal | Yusuke Tsukada, Shuichi Kubo, Hideo Fujisawa, Tatsuhiro Ohata, Hirotaka Ikeda +2 more | 2017-06-06 |
| 9518337 | Method for producing nitride crystal and nitride crystal | Yutaka Mikawa, Hideo Fujisawa, Hirobumi Nagaoka, Shinichiro Kawabata, Yuji Kagamitani | 2016-12-13 |
| 9163324 | Method for producing nitride crystal | Hideo Fujisawa, Yutaka Mikawa | 2015-10-20 |
| 9096945 | Method for producing nitride crystal and nitride crystal | Yutaka Mikawa, Hideo Fujisawa, Hirobumi Nagaoka, Shinichiro Kawabata, Yuji Kagamitani | 2015-08-04 |
| 4319016 | Ultraviolet-absorbing amino compound and method of making | Moriji Kurobe, Ryusuke Tsuji, Eiichi Imao, Takayuki Masuyama, Eizi Nagata | 1982-03-09 |