Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5149659 | Method and apparatus for analyzing fluorine containing gases | Kohzo Hakuta, Takashi Suen. A, Mitsuo Kodama, Hisaji Nakano, Shinsuke Nakagawa | 1992-09-22 |
| 5017499 | Method for analyzing fluorine containing gases | Kohzo Hakuta, Takashi Suenaga, Mitsuo Kodama, Hisaji Nakano, Shinsuke Nakagawa | 1991-05-21 |
| 5004829 | Method of preparing trifluoromethanesulfonic acid anhydride | Takashi Suenaga, Hiroaki Sakaguchi, Takanori Hamana | 1991-04-02 |
| 4964137 | Method of refining rare gas fluoride excimer laser gas | Shinsuke Nakagawa, Hisaji Nakano, Hiroshi Ichimura, Masahiro Tainaka | 1990-10-16 |
| 4927962 | Process of preparing fluorocarbon carboxylic or sulfonic acid from its fluoride | Hiroaki Sakaguchi, Tamio Nakamura | 1990-05-22 |
| 4925975 | Method of preparing alkali metal fluoroalkylsulfonates of high purity | Kimitaka Okamoto, Hiroaki Sakaguchi, Tamio Nakamura | 1990-05-15 |
| 4908415 | Method of converting fluorine-containing polymer into lower molecular weight polymer | Hisazi Nakano, Masahiro Kubo | 1990-03-13 |
| 4863762 | Method of forming coating film of fluororesin by physical vapor deposition | Masahiro Kubo, Hisaji Nakano, Hiroyuki Kurashige | 1989-09-05 |
| 4740982 | Method of refining rare gas halide excimer laser gas | Kohzo Hakuta, Takashi Suenaga | 1988-04-26 |
| 4711949 | Method of converting fluorine-containing high polymer into lower molecular weight polymer | Hiroaki Sakaguchi | 1987-12-08 |
| 4543242 | Process of preparing nitrogen trifluoride by gas-solid reaction | Yoshiyuki Kobayashi, Tamio Nakamura, Hisaji Nakano, Takashi Suenaga | 1985-09-24 |
| 4438086 | Method for preparation of graphite fluoride by contact reaction between carbon and fluorine gas | Yasushi Kita, Hishagi Nakano, Shiro Moroi | 1984-03-20 |
| 4312718 | Method for producing fluorine | Nobuatsu Watanabe, Yasushi Kita | 1982-01-26 |