Average Co-Inventor Count = 5.00
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. Hoya Corporation (5 from 2,528 patents)
5 patents:
1. 8722138 - Method of manufacturing glass substrate and information recording medium
2. 8420154 - Method of manufacturing glass substrate and information recording medium
3. 7841210 - Method of manufacturing glass substrate and information recording medium
4. 7281394 - Method of manufacturing glass substrate and method of manufacturing information recording medium
5. 6523367 - Method of manufacturing glass substrate for use in information recording medium, and method of manufacturing information recording medium