Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4230762 | Asphalt water-proofing material | Hajime Iwasaki, Kuninori Mizuta, Yoshinori Kobayashi, Tadayoshi Yoshikawa | 1980-10-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4230762 | Asphalt water-proofing material | Hajime Iwasaki, Kuninori Mizuta, Yoshinori Kobayashi, Tadayoshi Yoshikawa | 1980-10-28 |