Average Co-Inventor Count = 5.00
ph-index = 3
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. (3 from 42,488 patents)
2. Hitachi Maxell, Limited (1 from 1,112 patents)
3. Hitachi Consumer Electronics Co., Ltd. (1 from 365 patents)
5 patents:
1. 8976296 - Broadcasting and communication receiver apparatus
2. 8009233 - Broadcasting and communication receiver apparatus
3. 7289158 - Broadcasting and communication receiver apparatus
4. 7158188 - Broadcasting and communication receiver apparatus
5. 6037995 - Broadcasting and communication receiver apparatus