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. Dainippon Screen Mfg. Co., Ltd. (1 from 1,306 patents)
2. Sanyo-kokusaku Pulp Co., Ltd. (1 from 65 patents)
1 patent:
1. 4728568 - Masking tape for use in manufacturing a printed board