Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9815707 | Method of processing discharge gas discharged from production process | Masanori Iwaki, Yasusada Miyano, Toshio Akiyama | 2017-11-14 |
| 8889090 | Method of recovering ammonia and method of recycling ammonia by using the same | Masanori Iwaki, Toshio Akiyama | 2014-11-18 |
| 5244621 | Process for shaping ceramic composites | Fumihiro Wakai, Yasuharu Kodama, Takamasa Kawakami | 1993-09-14 |
| 5134097 | Silicon nitride-silicon carbide composite material and process for production thereof | Koichi Niihara, Takamasa Kawakami | 1992-07-28 |
| 4800182 | Silicon nitride-silicon carbide composite material and process for production thereof | Takamasa Kawakami, Kouichi Hakkei, Kazuhiro Ando | 1989-01-24 |
| 4613490 | Process for preparing silicon nitride, silicon carbide or fine powdery mixture thereof | Takashi Suzuki, Takamasa Kawakami, Rieko Nakano, Takeshi Koyama, Akira Mori +1 more | 1986-09-23 |
| 4594330 | Fine amorphous powder and process for preparing fine powdery mixture of silicon nitride and silicon carbide | Takashi Suzuki, Takamasa Kawakami, Takeshi Koyama, Masami Orisaku, Rieko Nakano +1 more | 1986-06-10 |