Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883196 | Heat-insulating packaging box | Katsumi Kuboshima, Tomoyuki Kaneko | 1989-11-28 |
| 4875665 | Accumulator | Masanori Kadotani, Yoshikazu Sakaguchi, Seitoku Kubo, Kunihiro Iwatsuki, Hiroji Taniguchi +1 more | 1989-10-24 |