Average Co-Inventor Count = 2.00
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. Tokai Kogyo Mishin Kabushiki Kaisha (2 from 72 patents)
2. Tism Co., Ltd (1 from 7 patents)
3 patents:
1. 11993881 - Sewing machine
2. 7793603 - Thread stand for sewing machine
3. D565608 - Thread stand for sewing machine