Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE42668 | Pearlitic steel rail having excellent wear resistance and method of producing the same | Masaharu Ueda, Hideaki Kageyama, Koji Babazono, Ken Kutaragi | 2011-09-06 |
| RE42360 | Pearlitic steel rail having excellent wear resistance and method of producing the same | Masaharu Ueda, Hideaki Kageyama, Koji Babazono, Ken Kutaragi | 2011-05-17 |
| RE41033 | Pearlitic steel rail having excellent wear resistance and method of producing the same | Masaharu Ueda, Hideaki Kageyama, Koji Babazono, Ken Kutaragi | 2009-12-08 |
| RE40263 | Pearlitic steel rail having excellent wear resistance and method of producing the same | Masaharu Ueda, Hideaki Kageyama, Koji Babazono, Ken Kutaragi | 2008-04-29 |
| 6254696 | Bainitic type rail excellent in surface fatigue damage resistance and wear resistance | Masaharu Ueda, Katsuya Iwano, Akira Kobayashi | 2001-07-03 |
| 5830286 | Steel rail having excellent wear resistance and internal breakage resistance, and method of producing the same | Masaharu Ueda | 1998-11-03 |
| 5762723 | Pearlitic steel rail having excellent wear resistance and method of producing the same | Masaharu Ueda, Hideaki Kageyama, Koji Babazono, Ken Kutaragi | 1998-06-09 |
| 5658400 | Rails of pearlitic steel with high wear resistance and toughness and their manufacturing methods | Toshiya Kuroki, Masaharu Ueda | 1997-08-19 |