Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7677997 | Double piston and belt type continuously variable transmission | Takeo Hiramatsu, Seiichiro Takahashi, Jonggap Kim, Yasushi Yabe | 2010-03-16 |
| 7291078 | Control of belt-type continuously variable transmission | Yoshiaki Katou | 2007-11-06 |
| 6804065 | Working method of die for use for Fresnel lens, cutting tool for use with the working method, die worked through execution of the working method, and Fresnel lens worked from the die | — | 2004-10-12 |
| 6192644 | Frame structure and method for forming the same | Haruo Kunieda | 2001-02-27 |