Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11919550 | Rail breakage detection device and rail breakage result management system | Tomoaki Takewa, Takafumi Nagano, Yoshitsugu Sawa, Wataru Tsujita, Kenzo Makino +1 more | 2024-03-05 |
| 11572088 | Rail break detection device | Masashi Asuka, Wataru Tsujita, Tomoaki Takewa, Yoshitsugu Sawa | 2023-02-07 |
| 11345379 | Train location measurement system, onboard device, ground device, and train location measurement method | — | 2022-05-31 |
| 11325623 | Rail breakage detection device and rail breakage detection system | Masashi Asuka, Wataru Tsujita, Tomoaki Takewa, Yoshitsugu Sawa | 2022-05-10 |
| 10946879 | Rail fracture detection device | Masashi Asuka, Tomoaki Takewa, Wataru Tsujita, Yoshitsugu Sawa | 2021-03-16 |
| 10857652 | Electroplated tool, screw-shaped grindstone for grinding gear, method for manufacturing electroplated tool, and method for manufacturing screw-shaped grindstone for grinding gear | Yuichi Tomizawa, Yu Kubodera, Shogo Nagayoshi, Takahiro Otsuka | 2020-12-08 |
| 10300523 | Crankshaft and method of strengthening shaft component | Toshiyuki Tanaka, Daisuke Miura, Takuro Yoshimura, Yutaka Takeuchi | 2019-05-28 |
| 8517801 | Method for producing pulley for belt-type continuously variable transmission | Nobuhiro Asai, Satoshi Kaneko, Masaharu Kitafuji, Tsuyoshi Kubota | 2013-08-27 |
| 8487207 | Apparatus and method for cutting hollow cylindrical workpiece | Katsuyuki Nakajima, Akihiro Nemoto | 2013-07-16 |