Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10294122 | Seawater desalination device and seawater desalination method | Masaaki Ohkawara, Yasuki Kansha, Atsushi Tsutsumi, Masanori Ishizuka, Hiroyuki Mizuno | 2019-05-21 |
| 6042636 | Method and apparatus of treating incinerator exhaust gas | Shizuo Aishima, Takahito Goshi, Masaaki Ohkawara, Toshiyuki Tanaka, Takashi Itoh +2 more | 2000-03-28 |