Average Co-Inventor Count = 2.67
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. Mitsubishi Denki Kabushiki Kaisha (4 from 21,351 patents)
2. Other (2 from 833,002 patents)
3. Mitsubishi Electric Engineering Company, Limited (1 from 177 patents)
6 patents:
1. 6941566 - Disc system
2. 6392981 - Disc device
3. 6256279 - Disc system
4. 5323885 - Vibration damping device with grooves
5. 5101399 - Deck base locking device for recording playback unit
6. 4985884 - Disk shaped recording reproduction device