Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876006 | Hollow fiber filter device | Kazuo Ohkubo, Tadamasa Hayashi | 1989-10-24 |
| 4859523 | Viscoelastic resin for vibration damping material | Hiroshi Endoh, Yoshimasa Zama, Nobuo Kadowaki, Takeshi Yatuka, Yutaka Mizumura | 1989-08-22 |
| 4809068 | Clock signal generating circuit for television receiver | — | 1989-02-28 |