Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5636402 | Apparatus spreading fluid on floor while moving | Naoki Kubo, Shigeru Oyokota | 1997-06-10 |
| 5613261 | Cleaner | Yuichi Kawakami, Takayuki Hamaguchi, Hideaki Nakanishi, Natsuko Waki | 1997-03-25 |