Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7003820 | Supportive device for handicapped people | Yoshiyuki Tsukamura, Keiji Yamamoto | 2006-02-28 |
| 6568233 | Method and apparatus of diametrically expanding metal shafts | Keiji Yamamoto, Kazuki MORI | 2003-05-27 |
| 6547115 | Bicycle transporting device for vehicle | Tadahiko Kato, Kazuki MORI | 2003-04-15 |
| 6257036 | Metallic shaft material diameter increasing device | — | 2001-07-10 |
| 5638563 | Bed with dually positionable head support | — | 1997-06-17 |
| 5497518 | Rotary bed | — | 1996-03-12 |
| 5444883 | Rotary, invalid bed | — | 1995-08-29 |
| 5425151 | Rotary, invalid bed | — | 1995-06-20 |
| 5418988 | Rotary bed with inwardly pivotable handrails | — | 1995-05-30 |
| 5048133 | Stretcher | Yukio Yokohata, Hisashi Terao | 1991-09-17 |
| 4858261 | Movable bed vehicle | — | 1989-08-22 |