Average Co-Inventor Count = 2.25
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. Hoya Corporation (3 from 2,528 patents)
3 patents:
1. 12203007 - Polishing liquid
2. 11098224 - Method for polishing glass substrate, method for manufacturing glass substrate, method for manufacturing magnetic-disk glass substrate, method for manufacturing magnetic disk, polishing liquid, and method for reducing cerium oxide
3. 8974561 - Manufacturing method of glass substrate for magnetic disk, magnetic disk, and magnetic recording / reproducing device