Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8869879 | Pipe/filler unit, internal heat exchanging type distillation column and production method thereof | Toshinari Nakanishi, Kazumasa Aso, Kinpei Horiuchi, Masaru Nakaiwa | 2014-10-28 |
| 8030419 | Process for producing polymer for semiconductor lithography | Takanori Yamagishi, Ichiro Kato, Satoshi Yamaguchi, Kouzo Osaki, Yasuo Shibata +2 more | 2011-10-04 |
| 5240613 | Process for regenerating clogged filters | Masatoshi Tsuchitani, Sakae Naito, Ryoichi Nakajima, Shintaro Hasebe | 1993-08-31 |