Average Co-Inventor Count = 2.40
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. Kasei Optonix, Ltd. (2 from 87 patents)
2. Mitsubishi Chemical Industries Limited (1 from 614 patents)
2 patents:
1. 4551397 - Zinc silicate phosphor and electron excited fluorescent display device
2. 4473518 - Process for preparing a phosphor