Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7352684 | Information medium and information recording and reproducing device | Hiroyuki Yamaguchi, Shoichi Okabayashi | 2008-04-01 |
| 7218585 | Information medium and information recording/reproduction apparatus | Hiroyuki Yamaguchi, Shoichi Okabayashi | 2007-05-15 |
| 5793741 | Optical information recording medium | Toshiaki Kashihara | 1998-08-11 |
| 5575426 | Process for disposing raw concrete sludge, apparatus for disposing the same, and aggregate forming apparatus using the same sludge | — | 1996-11-19 |
| 5554297 | Process of removing surfactant from uncured concrete by flotation | — | 1996-09-10 |
| 5110466 | Filter press | — | 1992-05-05 |