Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5560815 | Electrolytic chromium plating method using trivalent chromium | Masao Sekimoto, Yukiei Matsumoto, Kyohei Kuroda, Akio Nishi, Mitsuo Shibata | 1996-10-01 |
| 5141606 | Method for the electrolytic pickling or degreasing of steel plate | Yukiei Matsumoto, Yoshiaki Suganuma, Kuniaki Yamada | 1992-08-25 |
| 5059297 | Durable electrode for use in electrolysis and process for producing the same | Kazuhiro Hirao | 1991-10-22 |
| 5051187 | Process for recovering sulfuric acid | Yukiei Matsumoto | 1991-09-24 |