Average Co-Inventor Count = 5.00
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. Dowa Mining Co., Ltd. (3 from 217 patents)
2. Konami Digital Entertainment Co., Ltd. (1 from 530 patents)
3. Dowa Thermotech Co., Ltd. (1 from 21 patents)
5 patents:
1. 10921964 - Message input reception device, message system, and information storage medium
2. 7575643 - Carburization treatment method
3. 7276204 - Carburization treatment method and carburization treatment apparatus
4. 7024916 - Vacuum heat treatment furnace and method of and apparatus for measuring carbon concentration in atmosphere having reduced pressure.
5. 6709629 - Vacuum heat treatment furnace