Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4207661 | Method of fabricating a catalyst converter for cleaning exhausts of cars | Yoshio Mase, Tadayoshi Hayashi, Yasuhisa Kobayashi, Yoshiyuki Moriya | 1980-06-17 |
| 4203949 | Catalyst converter for cleaning exhausts of cars | Yoshio Mase, Tadayoshi Hayashi, Yasuhisa Kobayashi, Yoshiyuki Moriya | 1980-05-20 |