Average Co-Inventor Count = 1.71
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. Teac Corporation (3 from 1,030 patents)
3 patents:
1. D438851 - Optical disc player
2. 6123373 - Lock device having an improved lock member
3. D429705 - Video tape recorder