Average Co-Inventor Count = 2.40
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. Tanaka Seiki Co., Ltd. (2 from 12 patents)
2 patents:
1. 4092919 - Card selecting and address printing apparatus
2. 4069754 - Transfer-printing apparatus