Average Co-Inventor Count = 4.32
ph-index = 3
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 (3 from 1,112 patents)
3 patents:
1. 5008152 - Ink composition for thermal transfer printing and film for thermal
2. 4808499 - Lithium secondary battery
3. 4018710 - Reduction catalysts and processes for reduction of nitrogen oxides