Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8519305 | Polymer heating element | Keizo Nakajima, Takahito Ishii, Katsuhiko Uno, Hiroshi Fukuda | 2013-08-27 |
| 6931204 | Vacuum heat insulator, hot insulating device using vacuum heat insulator, and electric water heater | Takayuki Urata, Mitsuhiro Sano, Kiyoyoshi Takada, Izuo Hirota | 2005-08-16 |
| 5909985 | Drill having plate-like cutter member fixed at proximal end to shank and having cutting edge at distal portion | Kiyotaka Shiga, Akio Fukui, Kazuaki Terada, Takahiro Yamada, Haruyasu Toyoda +1 more | 1999-06-08 |