Average Co-Inventor Count = 2.57
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. Meiwa Gravure Co., Ltd. (3 from 10 patents)
3 patents:
1. 5866233 - Decorative sheet with changeable color or density
2. 5723200 - Decorative sheet
3. 5624732 - Bright printed sheet