Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4549523 | Heating apparatus | Kazuhiro Nakano, Toyohei Harada | 1985-10-29 |
| 4548575 | Oil heating equipment | — | 1985-10-22 |
YH
Yukio Hirauchi
Overall (All Time): #2,355,203 of 4,157,543Top 60%
2
Patents All Time