Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6326796 | Harmonic measuring method and a current injection device for harmonic measurement | Isao Koda, Shoji Nishimura, Katsuhiko Uno, Yasuyuki Natsuda, Yoshifumi Minowa | 2001-12-04 |
| 6208945 | Harmonic component measuring method for power system | Isao Koda, Hideki Fujita, Toshihiro Nakamura, Shoji Nishimura, Yasuyuki Natsuda +1 more | 2001-03-27 |
| 6114859 | Harmonic characteristic measuring method and harmonic characteristic measuring apparatus | Isao Koda, Yasuhiro Fuwa, Shoji Nishimura, Yoshifumi Minowa, Yasuyuki Natsuda | 2000-09-05 |
| D285069 | Telephone unit | Satoru Tsukiyama | 1986-08-12 |
| D279981 | Mobile telephone unit | Kiyoshi Ishii | 1985-08-06 |
| D277281 | Mobile telephone unit | Satoru Tsukiyama | 1985-01-22 |