Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886004 | Needle thread tension control including separate stopping and adjustable pre-tension devices | Masao Ogawa | 1989-12-12 |
| 4820775 | Alpha-olefin block copolymer particles and process for the production thereof | Akinobu Shiga, Masahiro Kakugo, Hajime Sadatoshi, Hiroyuki Kora, Junpei Kojima +2 more | 1989-04-11 |
| 4806433 | Process for producing olefin polymer | Takeshi Ebera, Kiyoshi Kawai, Akinobu Shiga | 1989-02-21 |