Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6668637 | Tire air pressure estimating apparatus | Eiichi Ono, Takaji Umeno | 2003-12-30 |
| 6591670 | Device for detecting wheel speed signal frequency | Takaji Umeno | 2003-07-15 |
| 6585867 | Production system of electrolyzed water | — | 2003-07-01 |
| 6522968 | Device for estimating road friction state | Shoji Ito, Masaki Yamamoto, Takaji Umeno, Yasushi Amano, Satoru Onozawa +1 more | 2003-02-18 |