Average Co-Inventor Count = 3.00
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 (1 from 383 patents)
1 patent:
1. 12187068 - Fiber-bundled part for writing instruments, and pen tip and writing instrument using the fiber-bundled part