Average Co-Inventor Count = 2.10
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. Seikosha Co., Ltd. (4 from 696 patents)
2. Mitsubishi Electric Corporation (2 from 15,863 patents)
3. Mitsubishi Denki Kabushiki Kaisha (1 from 21,351 patents)
7 patents:
1. 8868431 - Recognition dictionary creation device and voice recognition device
2. 8099290 - Voice recognition device
3. 6324513 - Spoken dialog system capable of performing natural interactive access
4. 5382103 - Multiple color ink ribbon cassette
5. 5321432 - Image forming apparatus with resolution control
6. 5072690 - Developing device of electrophotographic printer
7. 5069437 - Duplex printing apparatus