Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5998322 | Filter medium for molten metals | Kazutomo Hoshino, Toshiya Kunisaki, Hideaki Seto, Atsushi Kikuchi, Yukihisa Shiraishi +1 more | 1999-12-07 |
| 5667685 | Filter for the filtration of molten aluminum | Tadahiro Yoshida, Taro Kobayashi, Nobuhiro Okuzono | 1997-09-16 |
| 5036028 | High density metal boride-based ceramic sintered body | Tadahiko Watanabe, Tsuyoshi Doutsu, Kazuhisa Shobu | 1991-07-30 |
| 4948425 | Titanium carbo-nitride and chromium carbide-based ceramics containing metals | Tadahiko Watanabe, Tsuyoshi Doutsu, Osamu Yagishita, Hideki Yamamoto | 1990-08-14 |
| 4929417 | Method of manufacture metal diboride ceramics | Tadahiko Watanabe, Kazuhisa Shobu, Hideki Yamamoto, Eiichi Sudoh, Osamu Yagishita +1 more | 1990-05-29 |