Average Co-Inventor Count = 3.60
ph-index = 2
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 33,490 patents)
3 patents:
1. 6966624 - Liquid spraying device
2. 6595616 - Ink jet type recording apparatus
3. 6578949 - Ink jet recording device and method of driving and controlling the same