Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D290105 | Automobile tire | Tadanobu Nagumo, Tadayoshi Hiraga, Riichiro Mama, Izumi Kuramochi | 1987-06-02 |
| D283809 | Automobile tire | Izumi Kuramochi, Hiroshi Tokizaka, Isamu Irie, Atsunori Agari | 1986-05-13 |