Average Co-Inventor Count = 2.50
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. Nishikawa Rubber Co., Ltd. (3 from 231 patents)
2. Daio Paper Corporation (1 from 387 patents)
3 patents:
1. 11046831 - Sound-insulating sponge material, vehicle sealing material, and weather strip
2. 7977055 - Method for amplification of nucleotide sequence
3. 7632667 - Mutan endonuclease with substrate-specific cleavage activity