Average Co-Inventor Count = 2.66
ph-index = 9
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. (6 from 42,485 patents)
2. Hitachi-high-technologies Corporation (6 from 2,874 patents)
3. Laurel Bank Machines Company, Ltd. (3 from 138 patents)
4. The University of Tokyo (2 from 1,278 patents)
5. Laurel Precision Machines Co., Ltd. (2 from 53 patents)
6. The Foundation for the Promotion of Industrial Science (2 from 29 patents)
7. Kyoto Electronics Manufacturing Company, Limited (2 from 17 patents)
8. Other (1 from 832,680 patents)
9. Canon Kabushiki Kaisha (1 from 90,594 patents)
10. Hitachi Maxell, Limited (1 from 1,112 patents)
19 patents:
1. 10184872 - Viscosity/elasticity measurement device and measurement method
2. 10168267 - Rotational speed detection device, viscosity measurement device using the device, rotational speed detection method, and rotating object used in the method
3. 9518908 - Fluid mechanical property measurement method and measurement device
4. 9372141 - Viscosity measuring apparatus
5. 8757348 - Paper money input and output device
6. 8365582 - Device for measuring viscosity/elasticity and method for measuring viscosity/elasticity
7. 7940383 - Method of detecting defects on an object
8. 7882942 - Coin bar storage
9. 7692779 - Apparatus and method for testing defects
10. 7639350 - Apparatus and method for testing defects
11. 7625673 - Electrode material for electrochemical element and method for production thereof, and electrochemical element
12. 7486403 - Droplet shape measuring method and apparatus
13. 7443496 - Apparatus and method for testing defects
14. 7098055 - Apparatus and method for testing defects
15. 7037735 - Apparatus and method for testing defects