Average Co-Inventor Count = 4.57
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. Fujitsu Isotec Limited (3 from 26 patents)
2. Kao Corporation (1 from 3,600 patents)
4 patents:
1. 11142661 - Ink jet recording method
2. 5409275 - Magnetic retaining device for electronic apparatus
3. 5312144 - Magnetic retaining device for electronic apparatus
4. 5248208 - Method for setting ink ribbon into cassette body and ink ribbon cassette