Average Co-Inventor Count = 4.80
ph-index = 1
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. Aisin Seiki Kabushiki Kaisha (1 from 5,207 patents)
2. Hoya Corporation (1 from 2,532 patents)
3. Tsuyoshi Masumoto (1 from 8 patents)
2 patents:
1. 5100869 - Process for producing metal oxide-type superconductive material
2. 4944183 - Level gauge for liquid helium