Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885746 | Frequency converter | Takeo Fukushima, Masami Mizuguchi, Takahiro Furukawa, Yoshiaki Yato, Naonobu Fujimoto +1 more | 1989-12-05 |
| 4872320 | Refrigeration showcase | Yoshirou Ishizaka, Hiroshi Naganuma, Yuji Kishi, Yoshihisa Ishida, Kiyokazu Goto | 1989-10-10 |
| 4838976 | Method for manufacturing a steering wheel | — | 1989-06-13 |
| 4810939 | Top and bottom pincushion distortions correcting circuits to be used for picture tube having aspherical face plate | Toshimitsu Watanabe | 1989-03-07 |