Average Co-Inventor Count = 3.60
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. Hitachi, Ltd. (3 from 42,488 patents)
3 patents:
1. 4187109 - Strontium barium niobate single crystal doped with Ce
2. 4149989 - Process for producing phosphors
3. 3953503 - Method of manufacturing triglycine series ferroelectric crystals