Average Co-Inventor Count = 3.27
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. Sharp Kabushiki Kaisha Corporation (3 from 25,537 patents)
3 patents:
1. 5740135 - Disc reproducing apparatus capable of selecting a predetermined disc
2. 5524002 - Disc reproduction apparatus
3. 5191490 - Auto reverse type tape player capable of selectively switching between a