Average Co-Inventor Count = 5.00
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. Pioneer Electronic Corporation (3 from 2,861 patents)
3 patents:
1. 5114093 - Brake mechanism for reel stands of a tape recorder
2. 4949203 - Tape recorder having an improved cassette mounting device
3. 4930028 - Tape recorder