Average Co-Inventor Count = 4.30
ph-index = 11
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. (19 from 42,485 patents)
2. Renesas Technology Corp. (2 from 3,781 patents)
3. Hitachi Chubu Software, Ltd. (2 from 13 patents)
4. Hitachi Software Engineering Company, Ltd. (1 from 228 patents)
5. Hitachisoftware Eng. Co., Ltd. (1 from 2 patents)
21 patents:
1. 7913258 - Information processing device and process control method
2. 7596703 - Hidden data backup and retrieval for a secure device
3. 7283719 - Video capture device
4. 6842540 - Surveillance system
5. 6789263 - Data conversion method and apparatus
6. 6750905 - Digital camera storing and outputting encrypted digital image data
7. 6728813 - Method and apparatus for converting non-burst write cycles to burst write cycles across a bus bridge
8. 6584538 - Information processing system
9. 6570580 - Apparatus and method for information display
10. 6330629 - Information processing system
11. 6269215 - Information processing system
12. 6094521 - Information processing system
13. 5899575 - Video capture device, video recording/playing apparatus having the video
14. 5666161 - Method and apparatus for creating less amount of compressd image data
15. 5583985 - Graphic display processing apparatus for improving speed and efficiency