Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7294680 | Method of producing conjugated diene polymers with narrow molecular weight distribution and polymer produced | Takuo Sone, Katsutoshi Nonaka, Iwakazu Hattori | 2007-11-13 |
| 6255416 | Method of producing conjugated diene polymers | Takuo Sone, Katsutoshi Nonaka, Iwakazu Hattori | 2001-07-03 |
| 6130299 | Method for preparing conjugated diene polymer | Takuo Sone, Katsutoshi Nonaka, Iwakazu Hattori | 2000-10-10 |
| 5686543 | Process for producing polybutadiene rubber | Kyouyu Yasuda | 1997-11-11 |
| 5086136 | Process for producing high trans low vinyl conjugated diene (co)polymer | Iwakazu Hattori, Takashi Imamura | 1992-02-04 |
| 4463133 | Rubber compositions suitable for use in tire tread | Yasumasa Takeuchi, Mitsuhiko Sakakibara, Fumio Tsutsumi, Tatsuo Fujimaki, Shinsuke Yamaguchi +1 more | 1984-07-31 |
| 4433109 | Styrene-butadiene block copolymer | Yasumasa Takeuchi, Mitsuhiko Sakakibara, Fumio Tsutsumi, Iwakazu Hattori | 1984-02-21 |