Average Co-Inventor Count = 5.00
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. Other (1 from 832,880 patents)
2. Koyo Seiko Company, Ltd. (1 from 772 patents)
3. Koyo Sealing Techno Co., Ltd. (1 from 10 patents)
2 patents:
1. 7215110 - Seal ring, sealing apparatus and bearing apparatus
2. 6499885 - Seal ring, sealing apparatus and bearing apparatus