Average Co-Inventor Count = 5.00
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. Other (1 from 832,891 patents)
2. Dainippon Screen Mfg. Co., Ltd. (1 from 1,306 patents)
2 patents:
1. 4916482 - Apparatus for composing a plurality of original films on a base sheet
2. 4821078 - Apparatus for composing a plurality of original films on a base sheet