Patents per Year
Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5400204 | System for detecting a breakage of a power cable for an elevator system | Kenji Oshima | 1995-03-21 | $4,843,000 |
| 5298819 | Winding arrangement for a tubular linear motor | Keiichi Kohroki, Takayuki Mizuno, Masayukii Kawaguchi | 1994-03-29 | $3,423,000 |
| 5199532 | Electromagnetic elevator brake | Toshihiko Uematsu, Hisaki Kenmochi | 1993-04-06 | $5,905,000 |
| 5105109 | Support structure for a linear motor drive type of elevator | Keiichiro Nakai | 1992-04-14 | $5,082,000 |
| 5074384 | Rope weight compensating device for a linear motor driven elevator | Keiichiro Nakai | 1991-12-24 | $5,109,000 |
| 5052522 | Encoder installing structure | Keiichiro Nakai | 1991-10-01 | $7,088,000 |
| 5036955 | Column vibration system for a linear motor driven elevator | Keiichiro Nakai | 1991-08-06 | $4,578,000 |
| 5033587 | Braking system for a linear motor driven elevator | Keiichiro Nakai | 1991-07-23 | $4,238,000 |