Average Co-Inventor Count = 1.36
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 576 patents)
2. Tomy Kogyo Co., Ltd. (1 from 376 patents)
3 patents:
1. 5399091 - Drive simulation apparatus
2. 5106102 - Projected image drive game device
3. 4756614 - Film projector toy