Average Co-Inventor Count = 1.00
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. Nippon Columbia Co., Ltd. (2 from 44 patents)
2. Denon, Ltd. (1 from 20 patents)
3 patents:
1. 6754150 - Contents data reproducing apparatus
2. 6434100 - Optical disc reproducing apparatus
3. 6058079 - Optical disc reproducing apparatus for pre-reading recording data to be