Average Co-Inventor Count = 3.20
ph-index = 3
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. (3 from 1,306 patents)
2. Dainippon Screen Manufacturing Co., Ltd. (1 from 48 patents)
4 patents:
1. 5686999 - Punch apparatus for improved registration of image receiving material in
2. 5422737 - Device for mounting an original onto an image reading drum
3. 5103319 - Image processing condition setting apparatus
4. 4812916 - Visual monitoring device which projects an image of a register mark onto