Average Co-Inventor Count = 4.00
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. Mitsui Minings & Melting Co., Ltd. (2 from 817 patents)
2. Kyushu Seimitsu Kiki Co., Ltd. (1 from 3 patents)
3. Kyunshu Seimitsu Kiki Co., Ltd. (1 from 1 patent)
2 patents:
1. D581937 - Spoke for reel
2. D573151 - Reel for winding electronic component carrier tape