Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6627668 | Process for preparing polyolefin pre-expanded particles | Shinobu Ochikoshi, Yutaka Yanagihara | 2003-09-30 |
| 6596782 | Hydrous polyolefin resin composition, preexpanded particles produced therefrom, process for producing the same, and expanded molding | Kenji Mogami, Tsuyoshi Mihayashi, Kyoichi Nakamura | 2003-07-22 |
| 6593383 | Process for preparing polyolefin pre-expanded particles | Yutaka Yanagihara, Masahide Ebisui | 2003-07-15 |
| 6506807 | Process for preparing pre-expanded particles of thermoplastic resin | Yutaka Yanagihara, Kenji Mogami | 2003-01-14 |
| 6273347 | Pre-expanded particles of propylene resin, process for preparing the same and flow-restricting device | Tsuyoshi Mihayashi, Nobuhisa Ota, Yutaka Yanagihara, Takeshi Satoh | 2001-08-14 |
| 6130266 | Pre-expanded particles of propylene resin, process for preparing the same and flow-restricting device | Tsuyoshi Mihayashi, Nobuhisa Ota, Yutaka Yanagihara, Takeshi Satoh | 2000-10-10 |
| 5821272 | Method for post-treatment of polyolefin resin pre-expanded particles | Shinobu Ochikoshi, Hisatoshi Fukui, Kyoichi Nakamura, Hideya Mizuike | 1998-10-13 |
| 4937271 | Process for post-treating pre-expanded polyolefin resin particles | Hiroyuki Yoshida, Masakazu Taniguchi, Takatsugu Yamamoto | 1990-06-26 |
| 4682989 | Method of recovering volatile foaming agent from prefoamed beads of polyolefin resins | Hirofumi Maeda | 1987-07-28 |
| 4631159 | Method of aging expansion-molded body of polyolefin | Hirofumi Maeda, Kazuyoshi Watanabe, Kenichi Senda, Shunichi Nishioka | 1986-12-23 |