Average Co-Inventor Count = 5.22
ph-index = 3
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. (2 from 1,887 patents)
2. Kabushiki Kaisha Kobe Seiko Sho (2 from 1,100 patents)
3. Nissan Motor Company Limited (1 from 13,411 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. 6878218 - High strength gear and method of producing the same
4. 6824601 - Hard film for cutting tools, cutting tool coated with hard film, process for forming hard film, and target used to form hard film