Average Co-Inventor Count = 3.43
ph-index = 1
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. Citizen Watch Company, Ltd. (2 from 2,002 patents)
2. Citizen Systems Japan Co., Ltd. (2 from 56 patents)
2 patents:
1. 11820617 - Printer
2. 11815840 - Printer with housing for rolled paper