Average Co-Inventor Count = 3.43
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 Instruments Inc (1 from 2,899 patents)
2. Seiko Instruments & Electronics Ltd. (1 from 127 patents)
2 patents:
1. 6402314 - Inkjet recording apparatus
2. 4699850 - Ornamental part