Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6474449 | Elevator and guide device for elevator | Kenji Utsunomiya, Takashi Yumura | 2002-11-05 |
KO
Kenichi Okamoto
Overall (2002): #175,211 of 266,432Top 70%
1
Patents 2002