Average Co-Inventor Count = 1.71
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. Ricoh Company, Ltd. (15 from 28,544 patents)
15 patents:
1. 9736912 - Illumination device and communication system
2. 9723140 - Communication system and information processing device
3. 9523757 - Broadcasting device, communication terminal, and broadcasting system
4. 9447960 - Lighting fixture and positional information management system
5. 9432802 - Communication device and communication system
6. 9426775 - Communication terminal, communication method, and recording medium storing communication terminal control program
7. 9397709 - Light device and positional information management system
8. 9301090 - Light device, communication unit and positional information management system
9. 9268004 - Broadcasting device, position management system, broadcasting method, and storage medium
10. 9173188 - Communication apparatus, position information management system, and position information management method
11. 9173246 - Information management system, wireless terminal, and management method
12. 9172405 - Light device and positional information management system
13. 9094793 - Transmission system, location management system, and method of transmitting location data
14. 8090324 - Radio communication terminal apparatus, display method in radio communication terminal apparatus and radio communication network system
15. 8056120 - Authentication apparatus, authentication method, and computer program product