Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5708112 | Styrene copolymers, polystyrene compositions, and injection-molded articles | Hayato Kihara, Satoshi Nakagawa, Shuji Yoshimi | 1998-01-13 |
| 5534580 | Styrenic resin composition and injection- and extrusion-molded articles | Hayato Kihara, Shuji Yoshimi | 1996-07-09 |