Average Co-Inventor Count = 2.40
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. Kabushiki Kaisha Sankyo Seiki Seisakusho (2 from 307 patents)
2. Nippon Hoso' Kyokai (1 from 374 patents)
3. Nippon Hose Kyokai (1 from 2 patents)
2 patents:
1. 5027246 - Thin film magnetic head and a method for manufacturing thereof
2. 5014148 - Perpendicular magnetic recording and reproducing head