Average Co-Inventor Count = 3.00
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. Toyobo Co., Ltd. (1 from 395 patents)
2. Shoei Printing Co., Ltd. (1 from 4 patents)
3. Marusho Co., Ltd. (1 from 1 patent)
1 patent:
1. 5701002 - Identification card and its manufacture