Average Co-Inventor Count = 6.00
ph-index = 2
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. Toppan Printing Co., Ltd. (2 from 1,268 patents)
2. Nippon Petrochemicals Company, Limited (2 from 327 patents)
2 patents:
1. 6136414 - Embossed sheet and a method of producing a laminate including that sheet
2. 5928762 - Laminate of a base material and an embossed sheet