Average Co-Inventor Count = 5.84
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. Tokyo Electric Co. (3 from 492 patents)
2. Kabushiki Kaisha Tec (1 from 122 patents)
4 patents:
1. 5594487 - Thermal head supporting device
2. 4839514 - Optical reader with shading correcting means
3. 4784289 - Ticket issuing device for a ticket machine
4. 4711443 - Sheet supply device