Average Co-Inventor Count = 4.23
ph-index = 6
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 42,496 patents)
2. Other (3 from 832,843 patents)
3. Clarion Co (3 from 1,057 patents)
12 patents:
1. 11798108 - Transportation service planning system and transportation service planning method
2. 10754902 - Information processing system and information processing device
3. 10157348 - Related data generating apparatus, related data generating method, and program
4. 9811564 - POI information providing system, POI information providing device, POI information output device, POI information providing method, and program therefor
5. 8218945 - Motion picture recording/reproducing apparatus
6. 7796857 - Video playback apparatus
7. 7283671 - Communications terminal
8. 7257202 - Telephone communication system
9. 6850267 - Video telephone system and terminal device therefor
10. 6727907 - Video data processing device and video data display device
11. 6525742 - Video data processing device and video data display device having a CPU which selectively controls each of first and second scaling units
12. 6219030 - Video data processing system