Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6288001 | Graphite-containing monolithic refractory material | Yoshisato Kiyota, Masato Kumagai, Masao Nanbu, Masakazu Iida, Noboru Komatsubara +1 more | 2001-09-11 |
| 6210091 | Lock nut | Rikio Ono, Keiji Matsuda | 2001-04-03 |