Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7770427 | Metal forged product, upper or lower arm, preform of the arm, production method for the metal forged product, forging die, and metal forged product production system | Mitsuharu Akiyama | 2010-08-10 |
| 7257981 | Closed forging method, forging production system using the method, forging die used in the method and system, and preform or yoke produced by the method and system | Masayuki Natsui | 2007-08-21 |
| 5054441 | Decompression device in a two-cycle engine | Yoshihide Nakatani, Shigeichi Okada, Eiji Yaezawa, Makoto Takata | 1991-10-08 |
| 4671752 | Air-pulverizing apparatus for high-temperature molten slag | Makoto Fujiwara, Motoe Kondo, Yoshiharu Miyawaki, Masayuki Hanmyo, Shinya Kinoshita +3 more | 1987-06-09 |