Average Co-Inventor Count = 1.33
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. IP Co., Ltd. (2 from 15 patents)
2. Ushio Co. Ltd. (1 from 11 patents)
2 patents:
1. 5174242 - Facility for raising chickens
2. 5152605 - Apparatus for making cooled concrete