Average Co-Inventor Count = 2.74
ph-index = 6
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. Kabushiki Kaisha Tokai Rika Denki Seisakusho (8 from 2,002 patents)
2. Toyota Jidosha Kogyo Kabushiki Kaisha (2 from 1,838 patents)
3. Toyota Jidosha Kabushiki Kaisha (1 from 36,499 patents)
4. Tokai Rika Co., Ltd. (1 from 6 patents)
9 patents:
1. 4890037 - Apparatus for controlling a vehicle headlamp
2. 4708365 - Apparatus for controlling seatbelt system
3. 4384270 - Turn indicator system for use in automobiles
4. 4368393 - Rotational direction sensor
5. 4365121 - Turn direction detector for a steering shaft
6. 4351991 - Direction indicator blinker light switching arrangement
7. 4323877 - Turn direction detector for use in automobile
8. 4275379 - Traffic indicator
9. 4236141 - Automatic fastening and alarming circuit for a vehicle seat belt