Average Co-Inventor Count = 2.77
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. Riso Kagaku Corporation (5 from 1,074 patents)
2. Other (2 from 832,680 patents)
3. Hitachi, Ltd. (1 from 42,485 patents)
4. Kao Corporation (1 from 3,600 patents)
9 patents:
1. 11904356 - Ultrasonic transducer, manufacturing method thereof, and ultrasonic imaging device
2. 9688093 - Enclosing-sealing device and image formation system having the same
3. 8389606 - Asphalt mixture
4. 8346154 - Transfer control mechanism for printer and transfer control method
5. 6677230 - Method of manufacturing semiconductor device
6. 6461957 - Method of manufacturing semiconductor device
7. 5743182 - Stencil printing method and apparatus
8. 5713278 - Plate-making method and apparatus for stencil sheet
9. 5671669 - Stencil conveying means adapted to convey a stencil sheet parallel to