Average Co-Inventor Count = 2.00
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. Rohm Co., Ltd. (2 from 6,020 patents)
2 patents:
1. 7426087 - Information recording apparatus
2. 7019929 - Disk recording apparatus with erroneous writing protection