Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5902534 | Method of injection-molding thermoplastic resins | Takeshi Fujishiro, Toshiaki Izumida, Yoshiaki Yamamoto | 1999-05-11 |
| 5676896 | Process for the production of molded article with sealed pattern | Toshiaki Izumida, Katsumi Yoshida, Hisashi Tahara | 1997-10-14 |
| 5073313 | Process for producing low-dust-level polycarbonate molded article | Toshikazu Umemura, Makoto Matsumura, Toshiaki Izumida | 1991-12-17 |
| 4631334 | Optical articles of branched polycarbonate resin | Mituhiko Masumoto, Shigeo Yanada, Toshiaki Izumida | 1986-12-23 |