Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6571834 | Gas charging device | Masaru Takeda | 2003-06-03 |
| 6047727 | Valve assembly for gas cylinder and pressure reducing valve used therefor | Keitaro Yonezawa | 2000-04-11 |
| 5738145 | Valve assembly for gas cylinder | Norio Daicho, Keitaro Yonezawa, Masakatsu Kawahara, Noriaki Arai | 1998-04-14 |
| 5309945 | Valve assembly for gas cylinder | Mitsunori Sakai, Masakatu Kawahara | 1994-05-10 |
| 4580450 | Valve with a level gauge for a liquefied carbon dioxide container | Shiro Ota, Jiro Nitta, Hajime Miyoshi, Akira Oi | 1986-04-08 |