Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5334339 | Boron nitride sinter and process for its production | Hiroshi Nakawara, Suminiko Kurita | 1994-08-02 |
| 5308044 | Boron nitride ceramics and molten metal container provided with members made of the same ceramics | Mitsunori Kusumoto, Sumihiko Kurita, Hiroshi Nakamura, Katsumi Ura, Akira Murata | 1994-05-03 |