Average Co-Inventor Count = 1.50
ph-index = 3
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. Shimano Industrial Co., Ltd. (3 from 444 patents)
3 patents:
1. 4222534 - Fishing reel
2. 4202508 - Spinning type fishing reel
3. 4171108 - Spinning type fishing reel