Average Co-Inventor Count = 2.93
ph-index = 1
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. Nippon Piston Ring Co., Ltd. (2 from 229 patents)
2. Dowa Mining Co., Ltd. (2 from 217 patents)
4 patents:
1. 11051904 - Marker for use in living body and instrument set for inserting marker for use in living body
2. 10583217 - Implant and method for producing implant
3. 7641817 - Silver powder and method for producing same
4. 7462301 - Silver powder