Average Co-Inventor Count = 4.80
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. Dai Nippon Printing Co., Ltd. (1 from 3,202 patents)
2. Taisei Corporation (1 from 80 patents)
3. Showa Highpolymer Co., Ltd. (1 from 68 patents)
4. Taisei Kensetsu Kabushiki Kaisha (1 from 10 patents)
2 patents:
1. 4269869 - Method for improving surface properties of porous inorganic material by
2. 4213926 - Method for making a decorative plate used in a building