Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698717 | Process for preparing hydroxyflavan compounds | Hironobu Iyama, Kyoko Tsuta, Hideo Nagasaki, Manji Sasaki | 1997-12-16 |
| 5688871 | Rubber composition containing a flavan compound and a method for producing a vulcanized rubber containing same | Hironobu Iyama, Kyoko Tsuta, Hideo Nagasaki | 1997-11-18 |
| 5665799 | Rubber composition and a vulcanizing adhesion method using the same | Hironobu Iyama, Kyoko Tsuta, Hideo Nagasaki | 1997-09-09 |