Average Co-Inventor Count = 2.00
ph-index = 1
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. Apex Co. Ltd. (1 from 4 patents)
2. Shimizu Shokuhin Kaisha, Ltd. (1 from 2 patents)
3. Olympus Corporation (8,192 patents)
1 patent:
1. 5997603 - Sintered metal mould and method for producing the same