Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6852460 | Toner and image forming method using the same | Yukinori Nakayama, Yojiro Sato, Hiroaki Moriyama, Masaki Ishii | 2005-02-08 |
| 6760560 | Developing apparatus and image forming apparatus employing it | Takashi Nagai, Hidekazu Tamura, Seiji Kikushima, Toru Takatsuna, Hiroko Higuchi +2 more | 2004-07-06 |
| 6028501 | Ignition coil having a toroidal magnet | Shinichi Amano | 2000-02-22 |
| 6025770 | Ignition coil with counter magnetic field | Shinichi Amano | 2000-02-15 |
| 5679011 | Spark plug device | Yoshinao Kobayashi, Mika Okada | 1997-10-21 |
| 5476695 | Sparking plug cap | Mika Okada | 1995-12-19 |