Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5476730 | Air cell | Masayuki Wakasa, Yoshihito Tamanoi | 1995-12-19 |
| 5462816 | Air cell | Katsuma Sakai, Mitsunori Yoshimura | 1995-10-31 |
| 5240785 | Air cell | Kazuaki Nakaura, Yoshihito Tamanoi | 1993-08-31 |
| 4295092 | Apparatus for and method of detecting and measuring corrosion damage in pipe | — | 1981-10-13 |