Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8203413 | Winding component | Kiyoshi Hironaka, Hideyuki Akiyama, Katsuo Yamada, Akihiro Fujii | 2012-06-19 |
| 7345567 | Inverter transformer | Akihiro Fujii, Nobuaki Ito, Kiyoshi Hironaka, Katsuo Yamada, Akihiro Sudo +1 more | 2008-03-18 |
| 6809622 | Coil Device | Kiyoshi Hironaka, Yasuo Yamashita, Masaki Shinoda | 2004-10-26 |