Average Co-Inventor Count = 5.06
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. Mitsubishi Paper Mills Limited (3 from 622 patents)
2. Dainippon Screen Mfg. Co., Ltd. (2 from 1,306 patents)
3. Sony Corporation (1 from 58,132 patents)
4 patents:
1. 5887214 - Apparatus for processing photosensitive material
2. 5839011 - Apparatus for processing photosensitive material
3. 5834156 - Method for processing photosensitive material and apparatus therefor
4. 4420779 - Automatic cassette changer