Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5308044 | Boron nitride ceramics and molten metal container provided with members made of the same ceramics | Masazumi Nakashima, Mitsunori Kusumoto, Sumihiko Kurita, Hiroshi Nakamura, Akira Murata | 1994-05-03 |