Average Co-Inventor Count = 3.00
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. Kitagawa Industries Co., Inc. (1 from 260 patents)
2. Osaka Filter Co., Ltd. (1 from 1 patent)
3. Needs Kiko Co., Ltd. (1 from 1 patent)
2 patents:
1. 4669688 - Cable clamp
2. 4658950 - Lift apparatus for lifting cigarette filter plugs