Issued Patents All Time
Showing 126–128 of 128 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4227868 | Single-curvature fan wheel of diagonal-flow fan | Yoshiyasu Nishikawa, Chosei Harada | 1980-10-14 |
| 4218190 | Flat-bladed fan wheel of diagonal-flow fan | Yoshiyasu Nishikawa | 1980-08-19 |
| 4185320 | Decoder circuit | Yoshihiro Takemae | 1980-01-22 |