Average Co-Inventor Count = 6.67
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. Osaka Gas Company Limited (2 from 352 patents)
2. Nikko Kasei Co., Ltd. (1 from 1 patent)
2 patents:
1. 5242723 - Formed thermal insulator and process for preparation of same
2. 5135893 - Carbonaceous ceramic composite for use in contact with molten nonferrous