Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D628705 | Chemical body warmer | Yasumasa Usui, Kenichi Iwamoto, Michio Aida, Takashi Morito | 2010-12-07 |
| D628706 | Chemical body warmer | Yasumasa Usui, Kenichi Iwamoto, Michio Aida, Takashi Morito | 2010-12-07 |