Average Co-Inventor Count = 1.00
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. Bell & Howell Japan, Ltd. (1 from 2 patents)
2. Mochizuki Shoten, Limited (1 from 1 patent)
2 patents:
1. 4531819 - Device for storing exposed film for photographing and developing
2. 4370041 - Combination photographing and developing apparatus