Average Co-Inventor Count = 2.89
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 (7 from 2,002 patents)
2. Toyota Jidosha Kabushiki Kaisha (2 from 36,499 patents)
3. Toyota Jidosha Kogyo Kabushiki Kaisha (2 from 1,838 patents)
4. Ricoh Elemex Corporation (2 from 34 patents)
5. Tokai Rika Co., Ltd. (2 from 6 patents)
13 patents:
1. 7008225 - Tooth brusher
2. 6876900 - Unit designing apparatus and method
3. 6839602 - Device and method for designing shaped material production process
4. 6412125 - Head/face washing device, shower nozzle with hood, comb-shaped scalp washer and head washing shower brush
5. 4649286 - Power supply circuit for vehicle
6. 4577117 - Light responsive switch structure for use in a motor vehicle or the like
7. 4376896 - Switching assembly
8. 4370638 - Double-function solenoid operated switch
9. 4368393 - Rotational direction sensor
10. 4284295 - Webbing hanging device
11. 4262270 - Electromagnetic relay switch assembly
12. 4199670 - Manually re-set inertia switch assembly
13. 4074226 - Brake malfunction warning and indicating system for automobiles