Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5695625 | Oxygen concentration detector | Masayuki Hiroshima | 1997-12-09 |
| 5622531 | Polyurethane fiber-containing textile product improved in sweat absorption/exhalation properties, and production thereof | Kiyokazu Shuku, Toshio Hagihara | 1997-04-22 |