Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834700 | Method of and apparatus for forming filter element | Naohiko Kondo, Mineo Hanai, Yoshiaki Miyagawa, Ikuo Mochizuki, Takatoshi Iwase | 1989-05-30 |
| 4799111 | Video signal recording and/or reproducing apparatus with a function for re-recording a search control-index signal | — | 1989-01-17 |