Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888945 | Method for quality control of textured yarn | Yoshiyasu Maeda, Yasuhiro Inoue, Toshiyuki Uno | 1989-12-26 |
| 4832516 | Dot matrix print head | Hideo Nagasawa, Tadashi Ishizuka | 1989-05-23 |