Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6472097 | Rechargeable battery using pressure-crush type protective device and portable electronic device using the rechargeable battery | Yoshiaki Ohbayashi, Naoya Takehara, Keiji Mine | 2002-10-29 |
| 6393892 | Impact sensor and impact-pressure sensor | Yoshiaki Ohbayashi, Keiji Mine | 2002-05-28 |