Issued Patents All Time
Showing 1–20 of 20 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, Kazunori Kamada, Hirotaka Ikeda, Kenji Fujito +3 more | 2024-10-01 |
| 11670687 | Gallium nitride substrate and manufacturing method of nitride semiconductor crystal | Yusuke Tsukada, Kazunori Kamada, 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, Kazunori Kamada, Hirotaka Ikeda, Kenji Fujito +3 more | 2023-05-30 |
| 11094572 | Substrate processing apparatus and recording medium | Osamu Morita, Yuji Yamaoka, Toshiro Koshimaki, Hiroyuki KITAMOTO | 2021-08-17 |
| 11038024 | Self-standing GaN substrate, GaN crystal, method for producing GaN single crystal, and method for producing semiconductor device | Satoru Nagao, Yusuke Tsukada, Kazunori Kamada, 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, Kazunori Kamada, Hirotaka Ikeda, Kenji Fujito +3 more | 2021-06-08 |
| 10734485 | Gallium nitride substrate and manufacturing method of nitride semiconductor crystal | Yusuke Tsukada, Kazunori Kamada, Hideo Fujisawa, Tatsuhiro Ohata, Hirotaka Ikeda +2 more | 2020-08-04 |
| 10570530 | Periodic table group 13 metal nitride crystals and method for manufacturing periodic table group 13 metal nitride crystals | Yuuki ENATSU, Satoru Nagao, Hirotaka Ikeda, Kenji Fujito | 2020-02-25 |
| 10475887 | Self-standing GaN substrate, GaN crystal, method for producing GaN single crystal, and method for producing semiconductor device | Satoru Nagao, Yusuke Tsukada, Kazunori Kamada, Hirotaka Ikeda, Kenji Fujito +3 more | 2019-11-12 |
| 10023976 | Periodic table group 13 metal nitride crystals and method for manufacturing periodic table group 13 metal nitride crystals | Yuuki ENATSU, Satoru Nagao, Hirotaka Ikeda, Kenji Fujito | 2018-07-17 |
| 9840791 | Periodic table group 13 metal nitride crystals and method for manufacturing periodic table group 13 metal nitride crystals | Yuuki ENATSU, Satoru Nagao, Hirotaka Ikeda, Kenji Fujito | 2017-12-12 |
| 9673046 | Gallium nitride substrate and manufacturing method of nitride semiconductor crystal | Yusuke Tsukada, Kazunori Kamada, Hideo Fujisawa, Tatsuhiro Ohata, Hirotaka Ikeda +2 more | 2017-06-06 |
| 8545626 | Nitride semiconductor crystal and its production method | Kenji Fujito, Yoko Mashige | 2013-10-01 |
| 8022413 | Group III nitride semiconductor substrate and method for cleaning the same | Kenji Fujito, Hirotaka Oota | 2011-09-20 |
| 7930922 | Soot generation amount estimation apparatus for internal combustion engine | Tomomi Onishi, Takao Fukuma, Shigeki Nakayama, Yoshiki Takatori, Satoshi Yamazaki | 2011-04-26 |
| 7928446 | Group III nitride semiconductor substrate and method for cleaning the same | Kenji Fujito, Hirotaka Oota | 2011-04-19 |
| 6911184 | Exhaust emission control system and method for internal combustion engines | Shinichi Matsunaga, Motohisa Saiki | 2005-06-28 |
| 6783877 | Fuel reforming apparatus | Takashi Shimazu, Satoshi Iguchi, Satoshi Aoyama, Koichi Numata, Kazuhisa Kunitake +2 more | 2004-08-31 |
| 6499294 | Exhaust gas purification device for an internal combustion engine | Kenji Katoh, Takaaki Itou, Hiroshi Tanaka, Yoshiyuki Mandokoro, Masahiro Taki | 2002-12-31 |
| 6206940 | Fuel formulations to extend the lean limit (law770) | Walter Weissman, John E. Johnston, Anthony M. Dean, Kazuhiro Akihama, Satoshi Iguchi | 2001-03-27 |