Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7652860 | Polymer PTC device | — | 2010-01-26 |
| 6862164 | Circuit protection arrangement | Takashi Hasunuma, Masatoshi Sakamoto, Takashi Sato | 2005-03-01 |
| 6713210 | Secondary cell protection circuit device and secondary cell assembly | Takashi Sato, Takashi Hasunuma | 2004-03-30 |
| 6114942 | PTC device and battery pack using the same | Yoshitaka Kitamoto, Takashi Hasunuma, Shozo Fukuyama | 2000-09-05 |
| 5909168 | PTC conductive polymer devices | Takashi Hasanuma, Syozo Fukuyama | 1999-06-01 |
| 5260750 | Image forming apparatus having integral developing agent storing and removing containers | Takao Ishida | 1993-11-09 |