Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5587239 | Ball-like structures and contacting materials for wastewater-treatment | Hisaaki Ueba, Tosio Nagasima | 1996-12-24 |
| 5427008 | Core material of string for instruments and string for instruments using the same | Hisaaki Ueba, Kazuaki Ohashi | 1995-06-27 |