Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6387564 | Non-aqueous secondary battery having an aggregation layer | Masaya Yamashita, Yuko Ogawa | 2002-05-14 |
| 6287720 | Nonaqueous battery having porous separator and production method thereof | Masaya Yamashita | 2001-09-11 |