Average Co-Inventor Count = 3.69
ph-index = 4
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. Mrc Composite Product Co., Ltd. (2 from 2 patents)
2. Mitsubishi Rayon Company, Limited (1 from 1,357 patents)
3. Mrc Composite Products Co., Ltd. (1 from 5 patents)
4 patents:
1. D699801 - Golf club shaft
2. 8206238 - Shaft for golf club
3. D602107 - Golf club shaft
4. D596254 - Golf club shaft