Average Co-Inventor Count = 5.14
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. Seiko Epson Corporation (3 from 33,464 patents)
3 patents:
1. 6336758 - Printer
2. 5913626 - Printer having noise noise reduction structure
3. 5478162 - Printer