Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8042446 | Pressure-resistant vessel and blasting facility having the same | Shuzo Fujiwara, Takehiro Matsunaga, Kiyoshi Asahina, Kenji Tamai, Kenji Koide | 2011-10-25 |
| 7497165 | Blasting method by controlling oxygen supply | Shuzo Fujiwara, Takehiro Matsunaga, Kiyoshi Asahina, Kenji Koide | 2009-03-03 |
| 7398720 | Blasting method | Shuzo Fujiwara, Takehiro Matsunaga, Ken Okada, Kenji Koide | 2008-07-15 |
| 5597037 | Heat exchanging apparatus | Kazuhiko Asada, Koichi Ueno, Shin-ichiro Kashihara, Shigemi Okamoto, Kazuhiko Kuwahara +1 more | 1997-01-28 |