Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9061689 | Air spring | Kenji Fujimoto, Keiichiro Kamura | 2015-06-23 |
| 8794160 | Low-floor railcar bogie and low-floor railcar including the same | Keiichiro Kamura, Junichi Sakamoto | 2014-08-05 |
| 8656839 | Railcar bogie | Shunichi Nakao, Takeyoshi Kusunoki | 2014-02-25 |
| 8297199 | Railcar primary suspension | Yasufumi Okumura | 2012-10-30 |
| 7004078 | Truck for railroad car | Keisuke Takahashi, Yasufumi Okumura, Junichi Sakamoto | 2006-02-28 |
| 6257561 | Air spring | Kazuo Nakayama, Ichiro Maruyama, Hideki Kitada | 2001-07-10 |
| 5146779 | Indentation hardness tester | Takao Sugimoto, Yohichi Fujikake, Akiomi Yamaguchi | 1992-09-15 |