Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8507143 | Fuel cell system and method of reducing decrease in power generation efficiency of fuel cell | Keiko Tanaka, Kei Okamoto, Seiji Tanaka | 2013-08-13 |
| 5971844 | Air conditioning system for automotive vehicles | Katsuhiko Samukawa, Yuji Honda, Tatsumi Kumada | 1999-10-26 |