Average Co-Inventor Count = 6.43
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. Kanebo, Limited (2 from 305 patents)
2. Hisaka Works, Ltd. (1 from 46 patents)
2 patents:
1. 4830125 - Process and apparatus for automatically weighing and introducing
2. 4153766 - Continuous process for the production of ethylene terephthalate