Average Co-Inventor Count = 2.00
ph-index = 2
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 (2 from 21,351 patents)
2. Ryoden Semiconductor System Engineering Corporation (1 from 52 patents)
3. Ryoden Semiconductor Systems Engineering Corporation (1 from 1 patent)
2 patents:
1. 5702849 - Mask for transferring a pattern for use in a semiconductor device and
2. 5622787 - Mask for transferring a pattern for use in a semiconductor device and