Average Co-Inventor Count = 6.46
ph-index = 5
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. (8 from 42,496 patents)
2. Hitachi Consumer Electronics Co., Ltd. (4 from 365 patents)
3. Hitachi Maxell, Limited (2 from 1,112 patents)
14 patents:
1. 9532101 - Digital broadcast receiver unit
2. 8913197 - Digital broadcast receiver unit
3. 8634416 - Receiving apparatus for digital broadcasting signal and receiving/recording/reproducing apparatus thereof
4. 8345168 - Digital broadcast receiver unit
5. 7974316 - Receiving apparatus for digital broadcasting signal and receiving/recording/reproducing apparatus thereof
6. 7889281 - Digital broadcast receiver unit
7. 7436458 - Digital broadcast receiver unit
8. 7283570 - Receiving apparatus for digital broadcasting signal and receiving/recording/reproducing apparatus thereof
9. 7173674 - Digital broadcast receiver unit
10. 7123631 - Receiving apparatus for digital broadcasting signal and receiving/recording/reproducing apparatus thereof
11. 6826202 - Receiving apparatus for digital broadcasting signal and receiving/recording/reproducing apparatus thereof
12. 6813283 - Receiving apparatus for digital broadcasting signal and receiving/recording/reproducing apparatus thereof
13. 6549243 - Digital broadcast receiver unit
14. 6185228 - Receiving apparatus for digital broadcasting signal and receiving/recording/reproducing apparatus thereof