Average Co-Inventor Count = 4.13
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. Nhk Spring Co., Ltd. (3 from 1,233 patents)
3 patents:
1. 10207602 - Reclining device and vehicle seat
2. 9937833 - Seatback frame and vehicle seat
3. 8936318 - Vehicle seat