Average Co-Inventor Count = 4.39
ph-index = 7
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Nippondenso Co., Ltd. (5 from 3,252 patents)
2. Toyota Jidosha Kabushiki Kaisha (2 from 36,499 patents)
3. Nippon Soken, Inc. (2 from 1,600 patents)
4. Toyota Jidosha Kogyo Kabushiki Kaisha (1 from 1,838 patents)
5. Nippondenso Kabushiki Kaisha (1 from 12 patents)
8 patents:
1. 4941353 - Gas rate gyro
2. 4925236 - Automotive air spoiler device
3. 4685437 - Intake air heater for internal combustion engine with perforated plate
4. 4671058 - Heating device
5. 4667644 - Intake air heating apparatus
6. 4519820 - Fitter apparatus for purifying exhaust gases
7. 4364369 - Method and apparatus for recirculating exhaust gases in diesel engine
8. 4295456 - Exhaust-gas-recirculation system for use in diesel engines