Average Co-Inventor Count = 4.80
ph-index = 1
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. Mitsumi Electric Company Ltd. (2 from 1,572 patents)
2. Mitsubishi Denki Kabushiki Kaisha (1 from 21,351 patents)
2 patents:
1. 6907053 - Semiconductor laser device, and optical pickup apparatus using the device
2. D476315 - Optical pickup