Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674313 | Rubber modified asphalt type of water-proofing composition | Tsuyoshi Aoyama, Yoshimasa Hayashi, Kazuhiko Shichiku, Akira Ito, Hiroyuki Ishii +3 more | 1997-10-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674313 | Rubber modified asphalt type of water-proofing composition | Tsuyoshi Aoyama, Yoshimasa Hayashi, Kazuhiko Shichiku, Akira Ito, Hiroyuki Ishii +3 more | 1997-10-07 |