Average Co-Inventor Count = 6.00
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. National Cancer Center (2 from 222 patents)
2. Hoya Corporation (1 from 2,528 patents)
3. Pentax Corporation (1 from 1,056 patents)
4. Tamakawa Co., Ltd. (1 from 1 patent)
2 patents:
1. 8753262 - Internal treatment apparatus having circumferential side holes
2. 7169104 - Magnetic anchor remote guidance system