Average Co-Inventor Count = 1.48
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. Oki Electric Industry Co., Ltd. (4 from 4,979 patents)
4 patents:
1. 4746787 - IC card with display and card recording and reading device
2. 4697708 - Automatic bank note depositing and dispensing machine
3. 4612436 - Reading and writing apparatus for ID cards
4. 4590365 - Automatic transaction system