Average Co-Inventor Count = 3.16
ph-index = 4
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. Fuji Xerox Co., Ltd. (5 from 11,665 patents)
2. Seiko Epson Corporation (1 from 33,442 patents)
6 patents:
1. 9131091 - Document reading device and image forming apparatus
2. 8908241 - Document reading device and image forming apparatus
3. 8265520 - Image forming apparatus
4. 7155148 - Image forming apparatus
5. D491979 - Toner cartridge
6. D459388 - Toner cartridge