Average Co-Inventor Count = 2.67
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. The Yokohama Rubber Co., Ltd. (1 from 2,760 patents)
2. Kajima Keneetus Kabushiki Kaisha (1 from 1 patent)
2 patents:
1. D528972 - Automobile tire
2. 4607687 - Heat storage device