Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6129994 | Member having composite coating and process for producing the same | Yoshio Harada, Hirofumi Hisano | 2000-10-10 |
| 5161306 | Roll for use in heat treating furnace and method of producing the same | Akira Nakahira, Yoshio Harada | 1992-11-10 |
| 5070587 | Roll for use in heat treating furnace and method of producing the same | Akira Nakahira, Yoshio Harada | 1991-12-10 |