Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9849643 | Tire shaping drum | Yasunori Kawauchi, Syunichi Fujimura | 2017-12-26 |
| 6617949 | Choke coil | Atsushi Ishizuka, Masami Miyamoto, Tadashi Sato | 2003-09-09 |
| 4677401 | Noise filter for three-phase four-wire system | Noboru Kato, Kazuhiro Hibi | 1987-06-30 |