Average Co-Inventor Count = 4.29
ph-index = 4
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. Kobe Steel, Ltd. (3 from 1,887 patents)
2. Kabushiki Kaisha Kobe Seiko Sho (1 from 1,100 patents)
4 patents:
1. 7186324 - Hard film cutting tools, cutting tool coated with hard film, process for forming hard film and target used to form hard film
2. 6919288 - Hard film for cutting tools, cutting tool coated with hard film, process for forming hard film, and target used to form hard film
3. 6824601 - Hard film for cutting tools, cutting tool coated with hard film, process for forming hard film, and target used to form hard film
4. 6767627 - Hard film, wear-resistant object and method of manufacturing wear-resistant object