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. Seibu Electric Machinery Co., Ltd. (1 from 23 patents)
2. Japan Tabacco Inc. (1 from 12 patents)
3. Jt Engineering Inc. (1 from 1 patent)
1 patent:
1. 5386677 - Goods arrangement method and apparatus