Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10556660 | Ballast water treatment device | Tomoaki TANGE | 2020-02-11 |
| 10370263 | Ballast water treatment device | Tomoaki TANGE | 2019-08-06 |
| 10058806 | Ballast water treatment device | Tomoaki TANGE, Hitoshi Shiraishi, Yasutomo ZENMAN, Yasuhiko Saito, Takamichi Ide | 2018-08-28 |
| 9475566 | Ballast water treatment device | Tomoaki TANGE | 2016-10-25 |
| 6269782 | Water-tube boiler | Toshihiro Kayahara, Takashi Morimatsu, Koichi Wakae, Kanta Kondou, Tomohiro Ookubo +1 more | 2001-08-07 |
| 5353748 | Combustion method and apparatus for reducing emission concentrations of NO.sub.x and CO | Toshihiro Kayahara, Osamu Tanaka, Tetsushi Nakai, Kazuhiro Ikeda | 1994-10-11 |
| 4825813 | Multi-pipe once-through type boiler | Yuji Yoshinari, Hitoshi Shiraishi, Osamu Tanaka, Akiyoshi Kawahito, Toshihiro Kayahara +2 more | 1989-05-02 |