Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D646222 | Battery | Atsuhiro Kumagai, Osamu Nagashima | 2011-10-04 |
| D635512 | Battery | Atsuhiro Kumagai, Osamu Nagashima | 2011-04-05 |
| D618171 | Rechargeable battery | Atsuhiro Kumagai, Osamu Nagashima, Akiko Hikita | 2010-06-22 |
| D592130 | Rechargeable battery | Akiko Hikita | 2009-05-12 |
| D590769 | Rechargeable battery | Akiko Hikita | 2009-04-21 |
| D590335 | Rechargeable battery | Akiko Hikita | 2009-04-14 |
| D590336 | Rechargeable battery | Akiko Hikita | 2009-04-14 |
| D590337 | Rechargeable battery | Akiko Hikita | 2009-04-14 |
| D590341 | Rechargeable battery | Akiko Hikita | 2009-04-14 |
| D590334 | Rechargeable battery | Akiko Hikita | 2009-04-14 |