Average Co-Inventor Count = 2.00
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. Gradco Japan Ltd. (1 from 60 patents)
2. Nagano Japan Radio Co., Ltd. (1 from 25 patents)
1 patent:
1. 5711219 - Releasing apparatus for use in treating roller of printing machine