Average Co-Inventor Count = 4.00
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. Mitsumi Electric Company Ltd. (2 from 1,572 patents)
2 patents:
1. 6115342 - Optical disk recording device and optical disk drive
2. 5742579 - Optical disk recording device and optical disk drive