Average Co-Inventor Count = 3.00
ph-index = 4
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. Matsushita Electric Industrial Co., Ltd. (6 from 27,375 patents)
2. Panasonic Corporation (1 from 16,453 patents)
7 patents:
1. 7509333 - Information recording medium, information recording method, information recording apparatus, information reproducing method and information reproducing apparatus
2. 7437390 - Information recording medium, information recording method, information recording apparatus, information reproducing method and information reproducing apparatus
3. 7269613 - Information recording medium, information recording method, information recording apparatus, information reproducing method and information reproducing apparatus
4. 7130840 - Information recording medium, information recording method, information recording apparatus, information reproducing method, and information reproducing apparatus
5. 7050701 - Information recording medium, information recording/reproducing method, and information recording/reproducing device
6. 6785219 - Information recording medium, information recording/reproducing method, and information recording/reproducing device
7. 6762984 - Information recorded medium, information recording/reproducing method, and information recording/reproducing device