Issued Patents All Time
Showing 1–25 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9691610 | Method for producing a group III nitride semiconductor crystal and method for producing a GaN substrate | Shohei Kumegawa, Yasuhide Yakushi, Miki Moriyama | 2017-06-27 |
| 9567693 | Method for producing a group III nitride semiconductor single crystal and method for producing a GaN substrate | Miki Moriyama, Shohei Kumegawa, Shiro Yamazaki | 2017-02-14 |
| 9388506 | Semiconductor crystal removal apparatus and production method for semiconductor crystal | Shiro Yamazaki, Miki Moriyama | 2016-07-12 |
| 9358510 | Planetary mixer | Masakazu Inoue, Tomoharu Kawahara | 2016-06-07 |
| 9346027 | Planetary mixer | Masakazu Inoue, Tomoharu Kawahara | 2016-05-24 |
| 9263258 | Method for producing group III nitride-based compound semiconductor, wafer, and group III nitride-based compound semiconductor device | Shiro Yamazaki, Takayuki Sato, Yasuhide Yakushi, Koji Okuno, Koichi Goshonoo | 2016-02-16 |
| 9153439 | Method for etching a group III nitride semiconductor, method for producing a group III nitride semiconductor crystal, and method for producing a GaN substrate | Shohei Kumegawa, Yasuhide Yakushi, Miki Moriyama | 2015-10-06 |
| 8507364 | N-type group III nitride-based compound semiconductor and production method therefor | Shiro Yamazaki, Yasuhide Yakushi, Takayuki Sato, Makoto Iwai, Katsuhiro Imai +2 more | 2013-08-13 |
| 8501141 | Method for producing group III nitride semiconductor | Takayuki Sato, Makoto Iwai, Shuhei Higashihara, Yusuke Mori, Yasuo Kitaoka | 2013-08-06 |
| 8361222 | Method for producing group III nitride-based compound semiconductor | Shiro Yamazaki, Takayuki Sato, Katsuhiro Imai, Makoto Iwai, Takatomo Sasaki +2 more | 2013-01-29 |
| 8216365 | Method for producing a semiconductor crystal | Shiro Yamazaki, Takayuki Sato, Katsuhiro Imai, Makoto Iwai, Takatomo Sasaki +2 more | 2012-07-10 |
| 7708833 | Crystal growing apparatus | Shiro Yamazaki, Koji Hirata, Takayuki Sato, Katsuhiro Imai, Makoto Iwai +4 more | 2010-05-04 |
| 7491984 | Method for fabricating group III nitride compound semiconductors and group III nitride compound semiconductor devices | Masayoshi Koike, Yuta Tezen, Toshio Hiramatsu | 2009-02-17 |
| 7163876 | Method for manufacturing group-III nitride compound semiconductor, and group-III nitride compound semiconductor device | Masayoshi Koike, Kazuyoshi Tomita | 2007-01-16 |
| 7141444 | Production method of III nitride compound semiconductor and III nitride compound semiconductor element | Masayoshi Koike, Yuta Tezen, Hiroshi Yamashita, Toshio Hiramatsu | 2006-11-28 |
| 7052979 | Production method for semiconductor crystal and semiconductor luminous element | Kazuyoshi Tomita, Shiro Yamazaki, Yuta Tezen, Toshio Hiramatsu | 2006-05-30 |
| 7011707 | Production method for semiconductor substrate and semiconductor element | Kazuyoshi Tomita, Yoshihiro Irokawa, Kenji Ito | 2006-03-14 |
| 6964705 | Method for producing semiconductor crystal | Akira Kojima, Kazuyoshi Tomita | 2005-11-15 |
| 6861305 | Methods for fabricating group III nitride compound semiconductors and group III nitride compound semiconductor devices | Masayoshi Koike, Yuta Tezen, Toshio Hiramatsu | 2005-03-01 |
| 6855620 | Method for fabricating Group III nitride compound semiconductor substrates and semiconductor devices | Masayoshi Koike, Yuta Tezen | 2005-02-15 |
| 6844246 | Production method of III nitride compound semiconductor, and III nitride compound semiconductor element based on it | Kazuyoshi Tomita, Masahito Kodama | 2005-01-18 |
| 6821800 | Semiconductor light-emitting device and manufacturing method thereof | Norikatsu Koide, Shinya Asami, Junichi Umezaki, Masayoshi Koike, Shiro Yamasaki | 2004-11-23 |
| 6790279 | Method for manufacturing group III nitride compound semiconductor and a light-emitting device using group III nitride compound semiconductor | Masayoshi Koike | 2004-09-14 |
| 6716655 | Group III nitride compound semiconductor element and method for producing the same | Masayoshi Koike, Kazuyoshi Tomita | 2004-04-06 |
| 6680957 | Group III nitride compound semiconductor laser | Masayoshi Koike, Shiro Yamasaki, Yuta Tezen, Akira Kojima, Toshio Hiramatsu | 2004-01-20 |