Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363518 | Method and apparatus for fracturing rock beds | Shigetake Akanuma | 1982-12-14 |
| 4329665 | Noise suppressing connector | Senji Kawai, Yoshihumi Morimoto, Masayuki Watanabe, Hiroshi Yamaya, Hitoshi Kurohata | 1982-05-11 |