Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7336742 | Frequency error correction device and OFDM receiver with the device | Takeo OHSEKI, Yoshio Kunisawa, Hiroyasu Ishikawa, Hideyuki Shinonaga | 2008-02-26 |
| 4734640 | Welding current measuring apparatus | Reiji Kitahori | 1988-03-29 |
| 4647751 | Secondary conductor supervising device of resistance welder control system | Katsuo Yoshimura | 1987-03-03 |
| 4634828 | Control method of resistance welding | Yoshio Okabe | 1987-01-06 |
| 4634829 | Control method of spot welding | Yoshio Okabe | 1987-01-06 |
| 4634830 | Method of controlling constant-current for resistance welding machines | — | 1987-01-06 |