Average Co-Inventor Count = 3.20
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. Mitsubishi Heavy Industries Limited (3 from 4,631 patents)
2. Tokan Kogyo Co., Ltd. (1 from 25 patents)
4 patents:
1. 8286824 - Heat insulated container
2. 6341524 - Fuel gauge unit for a fuel tank
3. 6058894 - General-purpose air-cooled four-cycle engine
4. 6006703 - Cooling fan for an air-cooled engine