Issued Patents 1989
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882715 | Surface acoustic wave convolver with dielectric film of high non-linear effect | Koichi Egara, Norihiro Mochizuki, Kazuo Yoshinaga | 1989-11-21 |
| 4872829 | Fire-extinguishing device for oil burner | Kazuharu Nakamura, Yoshio Mito, Yutaka Nakanishi, Toshihiko Yamada, Kiyonobu Itoh | 1989-10-10 |
| 4858062 | Charging device | Naoji Hayakawa, Masanori Takenouchi, Fumitaka Kan, Yasuo Kozato, Isao Hakamada | 1989-08-15 |
| 4848575 | Resealable dispenser-container for wet tissues | Koji Nakamura | 1989-07-18 |
| 4815802 | Surface acoustic wave generating apparatus including a positive feedback-type generator | — | 1989-03-28 |
| 4810185 | Fire-extinguishing device for oil burner | Kazuharu Nakamura, Yoshio Mito, Yutaka Nakanishi, Toshihiko Yamada, Kiyonobu Itoh | 1989-03-07 |
| 4809018 | Thermal transfer printer | Kenichi Hironaka, Nobuyuki Tottori, Junichi Matsumoto, Katsumi Imaizumi, Syoji Yokoyama +7 more | 1989-02-28 |
| 4807993 | Method and apparatus for measuring light by frequency modulation using a time-variable synchronous rectification signal | Yasutaka Tokuhara | 1989-02-28 |
| 4798987 | Surface acoustic wave generator | — | 1989-01-17 |