Average Co-Inventor Count = 3.18
ph-index = 2
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. Hitachi, Ltd. (5 from 42,485 patents)
2. Sega Enterprises, Ltd. (1 from 264 patents)
3. Hitachi-ge Nuclear Energy, Ltd. (1 from 153 patents)
4. Kabushiki Kaisha Sega (1 from 92 patents)
5. Yokogawa Medical Systems, Limited (1 from 73 patents)
9 patents:
1. 11513013 - Stress distribution measurement device and stress distribution measurement method
2. 9810743 - Deterioration diagnosis system
3. 9410929 - Inspection device and inspection method
4. 9274085 - Eddy current inspection device, eddy current inspection probe, and eddy current inspection method
5. 9222915 - Eddy current flaw detection system and eddy current flaw detection method
6. 8183862 - Eddy current testing device
7. 7131907 - System and method for superimposing an image on another image in a video game
8. 6424353 - Computer game apparatus
9. 4716426 - Method of and apparatus for photographing medical image