Average Co-Inventor Count = 5.00
ph-index = 4
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 Maxell, Limited (6 from 1,112 patents)
6 patents:
1. 6688789 - Fluorescent substance, fluorescent composition, fluorescent mark carrier and optical reader therefor
2. 6471887 - Neodymium, ytterbium and/or erbium containing organic fluorescent compositions
3. 6458294 - Fluorescent ink compositions
4. 6436314 - Particulate fluorescent substance
5. 6303929 - Fluorescent substance, fluorescent composition, fluorescent mark carrier and optical reader therefor
6. 5932139 - Fluorescent substance, fluorescent composition, fluorescent mark carrier