Average Co-Inventor Count = 5.00
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. Musashi Seimitsu Kogyo Kabushiki Kaisha (1 from 14 patents)
2. Oiles Industries Co., Ltd. (1 from 1 patent)
3. Oiless Industry Co., Ltd. (1 from 1 patent)
2 patents:
1. 4699530 - Thrust ball bearing unit
2. 4231673 - Ball joint and a method for manufacturing the ball joint