Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6921797 | Method of reducing metal content in fluorine-containing elastomer | Yoshiyuki Tanaka, Masanori Kitaichi, Tatsuya Morikawa, Toshio Sogabe, Mitsuru Kishine | 2005-07-26 |
| 6703461 | Method of reducing metal content in fluoroelastomer | Yoshiyuki Tanaka, Masanori Kitaichi, Tatsuya Morikawa, Toshio Sogabe, Mitsuru Kishine | 2004-03-09 |
| 6350426 | Method of determining component concentrations in three-component mixture and method of continuous production of hydrogen fluoride using the method | Toshinobu Takeuchi, Ichiro Morioka | 2002-02-26 |
| 5814713 | Method for emulsion polymerization of tetrafluoroethylene and method for prevention of irregular polymerization thereof | Takuo Kawamura, Shigeru Ichiba | 1998-09-29 |
| 5546182 | Method for determination of trace metal impurity in fluorine-containing polymer and process for production of fluorine-containing polymer using the method | — | 1996-08-13 |
| 5122356 | Process for purification of hydrochloric acid | Takuo Kawamura | 1992-06-16 |