Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8172041 | Machine room-less elevator | Kan Kawasaki, Ikuo Asami, Takashi Ishii, Shun Fujimura | 2012-05-08 |
| 7562745 | Elevator with an operation space in a center of a machine room | Takashi Ishii, Kazuaki Miyakoshi, Shigeru Takaishi, Hiroshi Sano, Kan Kawasaki +6 more | 2009-07-21 |
| 7413055 | Elevator | Kan Kawasaki, Ikuo Asami, Takashi Ishii, Kazuaki Miyakoshi, Masahiro Kuramitsu +6 more | 2008-08-19 |
| 7350623 | Elevator door apparatus | Tooru Kinoshita, Seiichi Someya, Shin Murakami, Yoshinobu Ishikawa | 2008-04-01 |