Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D786132 | Rolling stock doors | Masahisa Masukawa, Mitsuaki Hoshi, Ryuji Karasawa | 2017-05-09 |
| D757604 | End part of rolling stock | Masahisa Masukawa, Mitsuaki Hoshi, Ryuji Karasawa | 2016-05-31 |
| D755672 | Rolling stock | Masahisa Masukawa, Mitsuaki Hoshi, Ryuji Karasawa | 2016-05-10 |