Average Co-Inventor Count = 1.20
ph-index = 3
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. Tomy Company, Ltd. (2 from 577 patents)
2. Tomy Kogyo Co., Ltd. (1 from 376 patents)
3 patents:
1. 5149095 - Ball conveying game apparatus
2. 5098111 - Ornamental game with underwater moving mechanism
3. 4995606 - Board game