Average Co-Inventor Count = 1.14
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 Instruments Inc (3 from 2,899 patents)
2. Seiko Instruments & Electronics Ltd. (1 from 127 patents)
4 patents:
1. D559303 - Label printer
2. D469086 - Electronic dictionary
3. D308638 - Card watch
4. D304930 - Portable data input terminal