With the analysis among 82 patents, we discovered top 27 key players by total patent application. Nippon Piston Ring Co., Ltd., Teikoku Piston Ring Co., Ltd., Gatan, Inc. are dominant in this area. They take 43.90% of the total patent filing.
Saitama-ken, Japan
Patent: 18
Tokyo-to, Japan
Patent: 10
California, United States
Patent: 8
Tennessee, United States
Patent: 7
Hitachi High-Tech America, Inc.
Illinois, United States
Patent: 5
No data, please try another search term
With the analysis among related 44 patents applied in the last 5 years. We discover 18 most active companies in this area. The fast-growing Teikoku Piston Ring Co., Ltd., FEI, Inc., Gatan, Inc. take 52.27% of patent filing during this period.
Tokyo-to, Japan
Patent: 10
Tennessee, United States
Patent: 7
California, United States
Patent: 6
Beijing Shi, China
Patent: 2
Michigan, United States
Patent: 1
Michigan, United States
Patent: 1
With the analysis among related 44 patents in last 5 years, we discover 15 new entrants. Teikoku Piston Ring Co., Ltd., FEI, Inc., Sumitomo Electric Hardmetal Ltd. are the most active new entrants in this area.
Tokyo-to, Japan
Patent: 10
Tennessee, United States
Patent: 7
Beijing Shi, China
Patent: 2
Michigan, United States
Patent: 1
Michigan, United States
Patent: 1
Illinois, United States
Patent: 1
Hyogo-ken, Japan
Patent: 1
With the analysis among 22 patents, we discovered top 10 universities and scientific research institutions by total patent application. California Institute of Technology, Peking University, Drexel University are dominant in this area. They take 40.91% of the total patent filing.
California, United States
Patent: 6
Beijing Shi, China
Patent: 2
Pennsylvania, United States
Patent: 1
Beijing Shi, China
Patent: 1
Beijing Shi, China
Patent: 1
Liaoning Sheng, China
Patent: 1
Beijing Shi, China
Patent: 1
Tianjin Shi, China
Patent: 1
Beijing Shi, China
Patent: 1