Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871819 | Ethylene copolymer and process for the production thereof | Akiyoshi Oonishi, Takeo Shimada, Yuji Ozeki | 1989-10-03 |
| 4829119 | Self-extinguishing polymer composition | Noriaki Hattori | 1989-05-09 |
| 4802892 | Fuel oil additive and fuel oil having improved flowability | Takeo Shimada, Tsutomu Isaka, Noriyuki Okada, Nobuhiro Usami | 1989-02-07 |