Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8115162 | Sliding door apparatus and elevator including an obstruction detection system | Masahiro Shikai, Akihide Shiratsuki, Hiroyuki Kawano, Takaharu Ueda, Toshio Masuda | 2012-02-14 |
| 7581880 | Radiant-temperature measurement device, light-source temperature control device, image projection apparatus and radiant-temperature measurement method | Hiroyuki Kawano, Tatsuki Okamoto, Toshirou Nakashima | 2009-09-01 |
| 6962239 | Sliding door system with optical detector for safe door opening and closing | Masahiro Shikai, Toshiro Nakashima | 2005-11-08 |
| 6631788 | Elevator system with safety installation | Masahiro Shikai, Hajime Nakajima, Toshiro Nakashima, Tatsushi Takahashi, Shigeki Yamakawa +4 more | 2003-10-14 |
| 6054938 | Optical encoder | Hajime Nakajima, Masahiro Shikai, Toru Oka, Toshiro Nakashima | 2000-04-25 |
| 5426296 | Irregular pattern input device comprising an optical fiber bundle | Masahiro Shikai, Hajime Nakajima | 1995-06-20 |
| 4481534 | Configuration detecting device | Toyokazu Saito, Seietsu Sanmiya, Akio Hosooka, Minoru Tanaka | 1984-11-06 |