Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366305 | Process for heat stabilizing oxymethylene copolymers | Akira Amemiya, Tadashi Kunii, Mutsuhiko Takeda, Katsumasa Tanaka, Toshikazu Umemura +4 more | 1982-12-28 |
| 4343929 | Process for continuously polymerizing trioxane | Akitoshi Sugio, Kazuyoshi Taka, Akira Amemiya, Mutsuhiko Takeda, Katsumasa Tanaka +2 more | 1982-08-10 |
| 4339569 | Process for continuous production of oxymethylene polymer or copolymer | Akitoshi Sugio, Akira Amemiya, Tadashi Kunii, Mutsuhiko Takeda, Katsumasa Tanaka +1 more | 1982-07-13 |
| 4301273 | Process for stabilizing oxymethylene copolymers | Akitoshi Sugio, Akira Amemiya, Tadashi Kunii, Mutsuhiko Takeda, Katsumasa Tanaka +1 more | 1981-11-17 |
| 4224435 | Method for mixing raw materials for producing oxymethylene copolymers | Akitoshi Sugio, Akira Amamiya, Tadashi Kunii, Mutsuhiko Takeda, Katsumasa Tanaka +2 more | 1980-09-23 |
| 4201849 | Acetal resin composition | Masaharu Kimura, Yoshiharu Otuki, Akitoshi Sugio | 1980-05-06 |
| 4189565 | Process for polymerizing trioxane | Akitoshi Sugio, Akira Amemiya, Tetsuya Abe, Takeo Suzumori, Mutsuhiko Takeda +6 more | 1980-02-19 |