Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4952651 | Highly crosslinked polymer particles and process for producing the same | Kiyoshi Kasai, Masayuki Hattori, Hiroshi Tadenuma | 1990-08-28 |
| 4331784 | Polymer particles comprising ethylenically unsaturated monomers as main constituent and having localized thereon conjugated diolefin (co-)polymer layer | Yoshiyuki Ishibashi, Eijiro Tagami, Teruo Hiraharu | 1982-05-25 |