Average Co-Inventor Count = 2.37
ph-index = 7
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. Sony Corporation (18 from 58,130 patents)
18 patents:
1. 8239320 - Electronic money apparatus and an electronic circuit
2. 7904390 - Management system and management method for charging object apparatus, management apparatus and charging object apparatus
3. 7613922 - Electronic device controlling apparatus, electronic device controlling system, and electronic device controlling method
4. 7580889 - Electronic apparatus, charging system and method, charge processing device, storage medium, and prepaid card
5. 7482922 - Electronic device controlling apparatus and electronic device controlling method
6. 7212114 - Communication apparatus
7. 7183894 - Communication system for accessing shared entrance of multiple dwelling house
8. 6972680 - Electronic device controlling apparatus and electronic device controlling method
9. 6039431 - Printer head cleaning device for ink jet printer
10. 5544965 - Printer
11. 5531527 - Apparatus and method for video printing
12. 5447382 - Apparatus and method for printing
13. 5385416 - Device for identifying an ink ribbon cartridge used in a printer
14. 5290114 - Ink ribbon unit and ink ribbon cassette
15. 4987047 - Imaging sheet roll containing photosensitive microcapsules