Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4909633 | Multi-channel spectral light measuring device | Yoshihiro Okui, Masami Sugiyama | 1990-03-20 |
| 4771265 | Double integration analog to digital converting device | Yoshihiro Okui | 1988-09-13 |