Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8485452 | Guard rail apparatus for guiding derailed wheels | Masaki Seki, Takashi Kachi, Tomomi Funada, Katsunari Konishi, Tetsuya Hanazaki | 2013-07-16 |
| 8418932 | Wheel guard apparatus | Masaki Seki, Kazuhiro Miwa, Tomomi Funada, Hironari Muramatsu, Yoshio Morikawa +2 more | 2013-04-16 |
| 8302877 | Wheel guard device | Masaki Seki, Takashi Kachi, Tomomi Funada, Katsunari Konishi, Tetsuya Hanazaki | 2012-11-06 |
| 7891577 | Safety device for a train | Masaki Seki, Takashi Kachi, Tomomi Funada, Katsunari Konishi, Tetsuya Hanazaki | 2011-02-22 |
| 6257494 | Base structure of a turnout | Kenzo Tokuoka, Masafumi Demura, Mitsuki Ego, Yoshihiro Fukui, Tomokazu Yano +2 more | 2001-07-10 |
| 6138958 | Spring rail frog | Katunari Konishi | 2000-10-31 |
| 5820702 | Welded nose rail used for crossing | Hisashi Takahata | 1998-10-13 |
| 5782437 | Spring rail frog having bendable rail with modified cross-section | Katunari Konishi | 1998-07-21 |
| 5704570 | Welded nose rail used for crossing | Hisashi Takahata | 1998-01-06 |