Average Co-Inventor Count = 2.25
ph-index = 2
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. Shachihata Industrial Co., Ltd. (2 from 25 patents)
2. Toyota Jidosha Kabushiki Kaisha (1 from 36,546 patents)
3 patents:
1. 6726594 - Control system and method for vehicle having continuously variable transmission
2. 4970952 - Date-stamping apparatus
3. D268598 - Felt pen