Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4995765 | Method of collecting wastes and system therefor | Tomoya Tokuhiro, Nobutaka Koibuchi, Teruhiko Miyauchi, Koshin Kikuchi, Jun Hirokawa +5 more | 1991-02-26 |
| 4993882 | Waste collection method | Sakae Nishizuka, Shozo Maruo, Yohichiro Tsutsui, Sadahito Ishikawa, Nobutaka Koibuchi +2 more | 1991-02-19 |