Average Co-Inventor Count = 2.96
ph-index = 28
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. Pioneer Electronic Corporation (80 from 2,861 patents)
2. Pioneer Electronics Corporation (6 from 30 patents)
3. Pioneer Corporation (4 from 2,647 patents)
4. Pioneer Video Corporation (3 from 96 patents)
5. Pioneer Electric Corporation (2 from 64 patents)
6. Pioneer Ldc, Inc. (2 from 3 patents)
7. Other (1 from 832,843 patents)
8. Pioneer Electronic Coporation (1 from 3 patents)
94 patents:
1. RE42506 - Information record medium, apparatus for recording the same and apparatus for reproducing the same
2. 7840117 - Information recording medium, apparatus for recording the same and apparatus for reproducing the same
3. 7783158 - Information record medium, apparatus for recording the same and apparatus for reproducing the same
4. 7398010 - Information record medium, apparatus for recording the same and apparatus for reproducing the same
5. 7346270 - Information record medium, apparatus for recording the same and apparatus for reproducing the same
6. 7330643 - Information record medium, apparatus for recording the same and apparatus for reproducing the same
7. 7295762 - Information record medium having first and second recording layers in which mid areas are recorded respectively, and apparatus for recording the same
8. 7242848 - Information record medium, apparatus for recording the same and apparatus for reproducing the same
9. 7181298 - Information converting method, information converting apparatus and information reproducing apparatus
10. 7095951 - Information record medium and apparatus for reproducing information according to navigation information
11. 7092618 - Audio information reproducing system, audio information reproducing apparatus and audio information reproducing method
12. RE39110 - Information recording medium, apparatus for recording the same and apparatus for recording the same
13. 7035529 - Information record medium, apparatus for recording the same and apparatus for reproducing the same
14. RE38849 - Information record medium, apparatus for recording the same and apparatus for reproducing the same
15. 6839311 - Information recording unit and method thereof