Average Co-Inventor Count = 3.18
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 Home Electronics (america), Inc. (17 from 26 patents)
2. Hitachi, Ltd. (5 from 42,508 patents)
3. Clarion Co (2 from 1,057 patents)
4. Hitachi Systems, Ltd. (2 from 34 patents)
5. Hitachi Home Elecronics (ameica), Inc. (1 from 1 patent)
27 patents:
1. 11100234 - Work recording apparatus, system, program, and method preventing confidential information leaks
2. 10755222 - Work management apparatus, work defect prevention program, and work defect prevention method
3. 9080884 - Navigation device, server device, navigation system and program
4. 8924145 - Web bulletin board system, travel planning assist method and center server
5. D567778 - Television
6. D549195 - Television
7. D545811 - Speaker
8. D533170 - Television stand
9. D533171 - Television stand
10. D531592 - Television console
11. D531591 - Television console
12. D530292 - Television console
13. D529317 - Television stand
14. D528087 - Television console
15. D517837 - Television stand