Average Co-Inventor Count = 2.00
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. Kyowa Sangyo Co., Ltd. (2 from 42 patents)
2. Shinwa Seiko Co., Ltd. (2 from 15 patents)
2 patents:
1. 7338108 - Sun visor for vehicles
2. 7118156 - Sun visor for vehicle