Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6305499 | Drum drive elevator using flat belt | David Wayne Jones, Yuji Kanzaki, Tadaaki Nabetani, Toshimitsu Mori, Yasuhisa Shioda +1 more | 2001-10-23 |
| 5907136 | Adjustable double-deck elevator | Masaharu Hongo, Masashi Kawarasaki, Mitsuo Soekawa, Yuzo Tada, Seiichi Hayashida | 1999-05-25 |