Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5401473 | Method and apparatus for treatment of NF.sub.3 gas | Akira Yoshino | 1995-03-28 |
| 5399211 | Method of plating steel | Akira Yoshino, Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano | 1995-03-21 |
| 5176889 | Method and apparatus for treatment of NF.sub.3 gas | Akira Yoshino | 1993-01-05 |
| 5141567 | Method of nitriding steel | Masaaki Tahara, Kenzo Kitano, Teruo Minato | 1992-08-25 |
| 5013371 | Method of nitriding steel | Masaaki Tahara, Kenzo Kitano, Teruo Minato | 1991-05-07 |
| 4975147 | Method of pretreating metallic works | Masaaki Tahara, Kenzo Kitano | 1990-12-04 |