Average Co-Inventor Count = 1.00
ph-index = NA
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. The Yokohama Rubber Co., Ltd. (2,760 patents)
2. Sika Hamatite Co., Ltd. (9 patents)
0 patent: