Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366418 | Spectral source, particularly for atomic absorption spectrometry | Yoji Arai | 1982-12-28 |
| 4198589 | Spectral source, particularly for atomic absorption spectrometry | Masataka Koga, Yoji Arai, Konosuke Oishi | 1980-04-15 |