Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4348201 | Tanning process and tanning compositions | Saburo Hayashi, Syohiti Okada, Kazuyoshi Okamoto, Mochifumi Mizutani, Teizo Isono +2 more | 1982-09-07 |
| 4314803 | Tanning method | Shigeaki Mizutani, Saburo Hayashi | 1982-02-09 |