Average Co-Inventor Count = 2.67
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. Mitsubishi Heavy Industries Limited (1 from 4,626 patents)
2. Nifco Inc. (1 from 1,193 patents)
3. Sharp Corporation (1 from 847 patents)
2 patents:
1. 6643883 - Wiper for liquid substances
2. 4342135 - Device for moderating movement of lid