Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890481 | System for measuring foreign materials in liquid | Masayoshi Ezawa, Akira Misumi, Yoshifumi Tomita, Yutaka Hiratsuka | 1990-01-02 |
| 4779451 | System for measuring foreign materials in liquid | Masayoshi Ezawa, Akira Misumi, Yoshifumi Tomita, Yutaka Hiratsuka | 1988-10-25 |
| 4717853 | Projection tube whose coolant contains an ethylene oligomer | Masayoshi Ezawa, Hiroko Wakui, Toshikazu Morishita, Akira Misumi | 1988-01-05 |