Issued Patents 1997
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680503 | Honeycomb heater having a portion that is locally quickly heated | Tomoharu Kondo | 1997-10-21 |
| 5662869 | Exhaust gas purification method and apparatus therefor | Junichi Suzuki, Masato Ogawa | 1997-09-02 |
| 5651088 | Resistive honeycomb heater having locally quickly heated regions for use in an exhaust gas purification system | Shigeharu Hashimoto, Tomoharu Kondo | 1997-07-22 |
| 5647203 | Exhaust gas purification system and exhaust gas purification method | Shigeharu Hashimoto, Masato Ogawa | 1997-07-15 |
| 5649049 | Honeycomb heater having large hydraulic diameter orifices to narrow current flow | Tomoharu Kondo, Keiji Noda | 1997-07-15 |
| 5614155 | Heater unit and catalytic converter | Shigeharu Hashimoto, Tomoharu Kondo | 1997-03-25 |