Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4708016 | Method for measuring volume and apparatus therefor | — | 1987-11-24 |
| 4701222 | Process for producing an artificial light-weight aggregate | Waichi Kobayashi, Kazuhiro Iwata | 1987-10-20 |