Average Co-Inventor Count = 2.67
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. Sanwa Kagaku Kenkyusho Co., Ltd. (1 from 108 patents)
2. Kikusui Seisakusho Ltd. (1 from 42 patents)
2 patents:
1. 9902087 - Powder filling device with redundant powder collection mechanism, and rotary compression molding machine
2. 8657594 - Punch of compression molding machine