Average Co-Inventor Count = 5.00
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. Nisshin Steel Co., Ltd. (1 from 342 patents)
2. Dai Nippon Printing (1 from 4 patents)
1 patent:
1. 4306172 - Shadow mask of braun tube for color TV and process for manufacturing the