Average Co-Inventor Count = 3.00
ph-index = 1
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. Kowa Company Limited (2 from 591 patents)
2 patents:
1. D306068 - Automatic perimeter for eyesight examination
2. D288822 - Fundus camera