Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4665736 | Stirring device for automatically measuring dissolved oxygen | Tadashi Yokoyama, Toshio Kaizuka, Junichi Naito, Kenichi Numazawa, Minoru Ohashi | 1987-05-19 |
| 4232939 | Screen with high luminance and wide angle | — | 1980-11-11 |