Average Co-Inventor Count = 1.36
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. Kabushiki Kaisha Tec (3 from 122 patents)
3 patents:
1. 5923357 - Line thermal printer
2. 5564846 - Printer with sheet positioning marks control
3. 5479467 - History recording apparatus