Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12288686 | GaN substrate wafer and method for manufacturing same | Kenji Iso, Yuuki ENATSU | 2025-04-29 |
| 11027398 | Grinding material and production method of grinding material | Kazuo Saito, Tomoki Iwanaga, Toshikazu Taura | 2021-06-08 |
| 9853182 | Gallium nitride-based light emitting diode | Seung Kyu Choi, Chae Hon Kim, Jung Whan Jung, Ki Bum Nam, Kaori Kurihara | 2017-12-26 |
| 9783708 | Conductive paste | Miki MATSUI, Takuya Tomura, Tomofumi Watanabe | 2017-10-10 |
| 9365592 | Bonding composition | Tomofumi Watanabe | 2016-06-14 |
| 9362449 | High efficiency light emitting diode and method of fabricating the same | Chang Yeon Kim, Dae-sung Cho, Ki Bum Nam, Young-Wug Kim, Jong Kyun You +2 more | 2016-06-07 |
| 9257595 | Nitride light-emitting diode element and method of manufacturing same | Yuki HARUTA, Tadahiro Katsumoto | 2016-02-09 |
| 7794541 | Gallium nitride-based material and method of manufacturing the same | Hiroyuki Shibata, Yoshio Waseda, Kazumasa Kiyomi, Hirobumi Nagaoka | 2010-09-14 |
| 6807213 | Semiconductor optical device apparatus | Nobuyuki Hosoi, Kazumasa Kiyomi, Yoshihito Sato, Satosi Kikuchi | 2004-10-19 |
| 6744066 | Semiconductor device and method for manufacturing the same | Kazumasa Kiyomi, Hideki Gotoh, Satoru Nagao | 2004-06-01 |
| 6707071 | Semiconductor light-emitting device | Makiko Hashimoto, Nobuyuki Hosoi, Katsushi Fujii, Yoshihito Sato, Kazumasa Kiyomi | 2004-03-16 |
| 6639926 | Semiconductor light-emitting device | Satoru Nagao, Katsushi Fujii, Hideki Goto | 2003-10-28 |
| 6589807 | Semiconductor device and method for manufacturing the same | Kazumasa Kiyomi, Hideki Gotoh, Satoru Nagao | 2003-07-08 |
| 6387721 | Semiconductor light-emitting device and manufacturing method for the same | Makiko Hashimoto, Nobuyuki Hosoi, Katsushi Fujii, Yoshihito Sato, Kazumasa Kiyomi | 2002-05-14 |
| 6278137 | Semiconductor light-emitting devices | Nobuyuki Hosoi, Katsushi Fujii, Atsunori Yamauchi, Hideki Gotoh, Yoshihito Sato | 2001-08-21 |
| 6265733 | Semiconductor device and method for manufacturing the same | Kazumasa Kiyomi, Hideki Gotoh, Satoru Nagao | 2001-07-24 |
| 6023483 | Semiconductor light-emitting device | Katsushi Fujii, Satoru Nagao, Hideki Goto | 2000-02-08 |
| 5868834 | Method of manufacturing a group II-VI compound semiconductor | Toshinari Fujimori, Hideki Goto | 1999-02-09 |
| 5827365 | Compound semiconductor and its fabrication | Hideki Gotoh | 1998-10-27 |
| 5811839 | Semiconductor light-emitting devices | Nobuyuki Hosoi, Katsushi Fujii, Atsunori Yamauchi, Hideki Gotoh, Yoshihito Sato | 1998-09-22 |
| 5804834 | Semiconductor device having contact resistance reducing layer | Hideki Gotoh | 1998-09-08 |
| 5622559 | Method of preparing compound semiconductor | Hideki Goto, Katsushi Fujii | 1997-04-22 |
| 5619518 | Semiconductor laser diode | Hideyoshi Horie, Yuichi Inoue, Nobuyuki Hosoi, Goto Hideki | 1997-04-08 |
| 5608751 | Laser diode and process for producing the same | Toshinari Fujimori, Satoru Nagao, Hideki Gotoh | 1997-03-04 |
| 5606180 | III-V compound semiconductor with high crystal quality and luminous efficiency | Nobuyuki Hosoi, Hideki Goto | 1997-02-25 |