Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6010786 | Polypropylene fiber for reinforcing cement | — | 2000-01-04 |
| 5487944 | Non-woven fabric sheet separator material for storage batteries and method for making the same | Isao Ikkanzaka, Kazuhiro Ikeda | 1996-01-30 |
| 5356572 | Method for manufacturing sheath-core ion exchange fibers | — | 1994-10-18 |
| 5354617 | Non-woven fabric sheet separator material for storage batteries and method for making the same | Isao Ikkanzaka, Kazuhiro Ikeda | 1994-10-11 |
| 5314922 | Ion exchange fibers and method for manufacturing the same | — | 1994-05-24 |
| 5204197 | Separator material for storage batteries and method for making the same | Toyohiko Sano, Isao Ikkanzaka | 1993-04-20 |