Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10259683 | Method for controlling an elevator system | Takahiro Yamada, Naoki Taniguchi, Keiji Hashimoto | 2019-04-16 |
| 9994429 | Handrail with a built-in RBI | Naoki Taniguchi, Takahiro Yamada, Keiji Hashimoto | 2018-06-12 |
| 8069957 | Elevator display system providing an indication of an estimated arrival of an elevator car | Hiromitsu Miyajima, Toshimitsu Mori | 2011-12-06 |
| 5248839 | Preparation process of bisphenol A | Shigeru Iimuro, Akira Yamada, Toshio Houri, Tsuguo Kawamura | 1993-09-28 |
| 5245088 | Process for crystallizing adduct of bisphenol A with phenol | Shigeru Fimuro, Akira Yamada | 1993-09-14 |