Average Co-Inventor Count = 3.13
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. Nikken Sohonsha Corporation (3 from 10 patents)
2. Nippon Koei Co., Ltd. (1 from 7 patents)
3 patents:
1. 11963485 - Natural invasion promoting method and spraying material
2. 8722057 - [object Object]
3. 7790175 - Strain of turkey tail mushroom, extract from the same, and use of the same