Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5891224 | Rubber modified asphalt type of water-proofing compositions | Tsuyoshi Aoyama, Yoshimasa Hayashi, Tadashi Nouchi, Kazuhiko Shichiku, Hiroyuki Ishii +3 more | 1999-04-06 |
| 5866211 | Rubber modified asphalt type of water-proofing compositions | Tsuyoshi Aoyama, Yoshimasa Hayashi, Tadashi Nouchi, Kazuhiko Shichiku, Hiroyuki Ishii +3 more | 1999-02-02 |
| 5674313 | Rubber modified asphalt type of water-proofing composition | Tsuyoshi Aoyama, Yoshimasa Hayashi, Tadashi Nouchi, Kazuhiko Shichiku, Hiroyuki Ishii +3 more | 1997-10-07 |