Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5027646 | Method of evaluating air-fuel ratio sensor and apparatus therefor | Noriyuki Ina, Toshio Yamada | 1991-07-02 |
| 5028309 | Electrochemical device incorporating means for preventing reduction of solid electrolyte and insulating ceramics due to heater current leakage | Hitoshi Nishizawa, Kazuyoshi Shibata | 1991-07-02 |
| 4927517 | NOx sensor having catalyst for decomposing NOx | Hitoshi Nishizawa | 1990-05-22 |
| 4915815 | Sensor incorporating a heater | Kazuyoshi Shibata | 1990-04-10 |
| 4882033 | Electrochemical device | Kazuyoshi Shibata | 1989-11-21 |
| 4666566 | Method of detecting oxygen partial pressure | Kazuyoshi Shibata | 1987-05-19 |
| 4645572 | Method of determining concentration of a component in gases and electrochemical device suitable for practicing the method | Hitoshi Nishizawa | 1987-02-24 |
| 4582657 | Method of manufacturing electrochemical cell | Kazuyoshi Shibata | 1986-04-15 |