Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4956403 | Suppression of pressure water absorption of lightweight aggregate by aqueous dispersion therein of anionic polymers | Toshio Yonezawa, Takashi Iwashimizu, Yasuhiko Yoshioka, Koichi Ito, Tetsuo Nakase | 1990-09-11 |
| 4588025 | Aluminum heat exchanger provided with fins having hydrophilic coating | Takaichi Imai, Takeshi Yamada, Eizo Isoyama, Masaaki Mizoguchi, Katsumi Tanaka | 1986-05-13 |