Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692985 | Chain assembly with varying track levels | Takashi Hirata | 1997-12-02 |
| 5690197 | Power supply device for supplying a drive power to a movable object | Masanori Suganuma, Kohji Okamoto | 1997-11-25 |
| 5688175 | Game machine | Yuichiro Sagawa | 1997-11-18 |