Average Co-Inventor Count = 3.69
ph-index = 2
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. Toyo Roki Seizo Kabushiki Kaisha (2 from 41 patents)
2. Prime Polymer Co., Ltd. (1 from 51 patents)
3. Roki Cp., Ltd. (1 from 1 patent)
4. Toyo Roki Mfg. Co., Ltd. (1 from 1 patent)
4 patents:
1. 8132552 - Intake duct
2. 7834078 - Fiber-reinforced resin composition for parts of air intake system of internal combustion engine
3. 7571702 - Resin composition for intake system part for internal combustion engine and intake system part
4. 6105547 - Air intake device for an internal combustion engine