Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6988515 | Ultra-low permeation hose and method of manufacture | Hideyuki Oishi, Yuuji Kawamori, Hiroaki Shibano | 2006-01-24 |
| 5372855 | Treatment of inorganic building materials | Keishi Hamada, Shigemasa Otani, Kanemasa Nomaguchi, Tomiguyu Murakami, Sadayoshi Iijima | 1994-12-13 |
| 5023136 | Treated inorganic building materials | Keishi Hamada, Shigemasa Otani, Kanemasa Nomaguchi, Tomiguyu Murakami, Sadayoshi Iijima | 1991-06-11 |