Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5608933 | Bed having mat support rolls rotated to move a mat for blood circulation of a person lying on the mat | Hideto Hanada, Tadashi Obara, Sigeyuki Takasugi, Nobumasa Imoto, Michiko Nakamura +4 more | 1997-03-11 |