Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6439552 | Overhead wire tensioning device | Satoshi Ageishi, Hiroshi Amano, Yoshio Narumiya, Toru Uchikoshi, Shoji Konta +2 more | 2002-08-27 |
| 4921223 | Car suspension system | Takeo Fukumura, Nobuya Ezure | 1990-05-01 |
| 4921224 | Car suspension system | Takeo Fukumura, Nobuya Ezure | 1990-05-01 |
| 4921227 | Car suspension system | Takeo Fukumura, Nobuya Ezure | 1990-05-01 |
| 4886256 | Vehicle suspension device with a coil spring embedded in an open cell foam | Masakazu Nishiyama, Hideo Yamamoto | 1989-12-12 |
| 4880213 | Gas spring apparatus | Ichiro Takadera, Kohei Taguchi | 1989-11-14 |
| 4828231 | Car suspension system | Takeo Fukumura, Nobuya Ezure | 1989-05-09 |
| 4720085 | Vehicle suspension apparatus | Takeo Fukumura, Yoshio Kimura | 1988-01-19 |
| 4463936 | Apparatus for controlling friction between the leaf springs of a laminated leaf spring assembly of a vehicle | Ichiro Takadera, Takeo Fukumura | 1984-08-07 |
| 4456232 | Apparatus for controlling friction between leaf springs of a laminated leaf spring assembly | Susumu Matsuoka | 1984-06-26 |
| 4452435 | Apparatus for controlling friction between leaf springs of a laminated leaf spring assembly | Yoshio Kimura | 1984-06-05 |
| 4433833 | Apparatus for controlling the spring constant of a laminated leaf spring assembly | Takayuki Tabe | 1984-02-28 |
| 4418896 | Apparatus for controlling the friction between the leaf springs of a laminated leaf spring assembly | — | 1983-12-06 |