Average Co-Inventor Count = 5.77
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. Kabushiki Kaisha Kobe Seiko Sho (3 from 1,100 patents)
2. Kobe Steel, Ltd. (2 from 1,883 patents)
5 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. 5744017 - Vacuum arc deposition apparatus
5. 5730847 - Arc ion plating device and arc ion plating system