Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8025182 | Gas cartridge | Keijiro Murayama, Katsuhiko Murayama, Jyunichi Tamura | 2011-09-27 |
| 7938303 | Gas combustion-type driving tool | Junichi Tamura, Katsuhiko Murayama | 2011-05-10 |