Average Co-Inventor Count = 1.41
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. Toppan Printing Co., Ltd. (1 from 1,268 patents)
2. Csk Corporation (1 from 17 patents)
3. Computer Services, Inc. (1 from 10 patents)
3 patents:
1. 5344808 - Intermediate transfer medium and process for producing image-recorded
2. 4885736 - Optical recording medium with track and track number guides
3. 4881215 - Optical recording medium and method for correcting angular deviation