Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850533 | Telescopic drinking straw | Katsumasa Hoshi, Yukihiro Nomura, Hiroshi Shibano, Takeshi Banba | 1989-07-25 |
| 4822668 | Elastic absorbent | Toyoaki Tanaka, Katuzi Ohira, Akira Nakamura, Akihiro Hashimoto | 1989-04-18 |