Average Co-Inventor Count = 4.00
ph-index = 1
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. Mitsubishi Pencil Company, Limited (4 from 384 patents)
4 patents:
1. 11472222 - Multifunction pen
2. 11467677 - Input pen and method of manufacturing input pen
3. 11221686 - Multifunction pen
4. 11112892 - Stylus pen