Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5981415 | Ceramic composite material and porous ceramic material | Yoshiharu Waku, Narihito Nakagawa, Kazutoshi Shimizu, Hideki Ohtsubo, Yasuhiko Kohtoku | 1999-11-09 |
| 5902763 | Fused ceramic composite | Yoshiharu Waku, Narihito Nakagawa, Hideki Ohtsubo, Kazutoshi Shimizu, Yasuhiko Kohtoku | 1999-05-11 |