Average Co-Inventor Count = 3.27
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. Kabushiki Kaisha Sato (1 from 134 patents)
2. Toppan Insatsu Kabushiki Kaisha (1 from 1 patent)
2 patents:
1. 5326179 - Apparatus for producing an information recording card
2. 4557169 - Continuous tag cutting/feeding apparatus