Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5172183 | Glow discharge atomic emission spectroscopy and apparatus thereof | Tetsuya Mega, Michio Katayama, Masao Yokoi | 1992-12-15 |
| 4690558 | Method of laser emission spectroscopical analysis and apparatus therefor | Kouzou Tsunoyama, Yoshiharu Ohashi, Motoyuki Konishi | 1987-09-01 |