Average Co-Inventor Count = 3.01
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. Seiko Epson Corporation (6 from 33,490 patents)
6 patents:
1. 8831982 - Fiscal board receiving case and fiscal printer
2. 8661270 - Electronic apparatus and method of controlling electronic apparatus
3. 8339632 - Fiscal printer
4. 5644341 - Ink jet head drive apparatus and drive method, and a printer using these
5. 5605407 - Printer and its control method
6. 5354136 - Printer feed mechanism