Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12377888 | Railway axle | Chihiro KOZUKA, Yuichiro Yamamoto, Toshiyuki Hata, Akihito Yamane | 2025-08-05 |
| 12305597 | Steel pipe for fuel injection pipe, and fuel injection pipe using same | Masahiro Yamazaki, Tomohiko Omura, Yuji Arai, Osamu Endo, Naoki Serizawa +1 more | 2025-05-20 |
| 12000028 | Rail vehicle axle | Takayuki Kamimura, Yuichiro Yamamoto, Yutaka Wakasu, Kiyonobu Sugae, Yukiteru Takeshita +1 more | 2024-06-04 |
| 12000364 | Steel pipe for fuel injection pipe and fuel injection pipe using the same | Tatsuya Masuda, Tsugumi Yamazaki, Katsunori Nagao, Tsutomu Okuyama | 2024-06-04 |
| 11203793 | Steel pipe for fuel injection pipe and method for producing the same | Tatsuya Masuda, Tsugumi Yamazaki, Hiroaki Kondo, Masahiro Yamazaki, Katsunori Nagao | 2021-12-21 |
| 10392683 | Rail vehicle axle | Yukiteru Takeshita, Naomitsu Mizui, Yutaka Wakasu | 2019-08-27 |
| 10066281 | Age-hardenable steel | Masashi Higashida, Masato YUYA, Hitoshi Matsumoto, Tatsuya Hasegawa, Yutaka Neishi +5 more | 2018-09-04 |
| 9994943 | Rolled steel bar for hot forging, hot-forged section material, and common rail and method for producing the same | Naoki Matsui, Masashi Higashida, Hitoshi Matsumoto, Yutaka Neishi, Kouji Morita +3 more | 2018-06-12 |
| 9951403 | Hot-forged section material and common rail | Naoki Matsui, Masashi Higashida, Hitoshi Matsumoto, Yutaka Neishi, Kouji Morita +3 more | 2018-04-24 |
| 9574255 | Rolled steel bar for hot forging | Masashi Higashida, Hitoshi Matsumoto, Naoki Matsui, Yutaka Neishi | 2017-02-21 |
| 6663727 | Steel alloy railway wheels | Takashi Fujimura | 2003-12-16 |
| 6372057 | Steel alloy railway wheels | Takashi Fujimura | 2002-04-16 |
| 6357297 | Method for preventing shattered-rim fracture in railway wheels | Takashi Fujimura | 2002-03-19 |
| 5899516 | Railway wheel and manufacturing method of the railway wheel | Takashi Fujimura, Manao Anjiki, Yoshihiro Daitoh | 1999-05-04 |