Average Co-Inventor Count = 1.00
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. Iseto Shiko Co., Ltd. (1 from 4 patents)
1 patent:
1. 4972655 - Apparatus for manufacturing sealed postal mails or the like envelope