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. Akiyama Printing Machinery Manufacturing Corp. (1 from 2 patents)
2. Kamo Denki Research Institute Ltd. (1 from 1 patent)
1 patent:
1. 4833985 - Apparatus for matching register marks and punching U-holes for press