Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888701 | Apparatus for measuring vector voltage ratio | Tomio Wakasugi | 1989-12-19 |
| 4885528 | Apparatus which uses a simulated inductor in the measurement of an electrical parameter of a device under test | Kazuyuki Yagi, Shigeru Tanimoto, Yasuaki Komatsu, Koichi Yanagawa, Yoichi Kuboyama | 1989-12-05 |
| 4862255 | Color correcting circuit for thermal printer selectively outputting a second degree correction operation result and a modified result thereof | Itsuo Takanashi, Terumi Ohara, Kenichi Miyazaki, Toshinori Takahashi, Hiroki Kitamura +2 more | 1989-08-29 |