With the analysis among 45 patents, we discovered top 17 key players by total patent application. Sumitomo Osaka Cement Co., Ltd., Nippon Steel & Sumikin Cement Co., Ltd., Taiheiyo Cement Corp. are dominant in this area. They take 35.56% of the total patent filing.
Chiba-ken, Japan
Patent: 4
Yamanashi-ken, Japan
Patent: 1
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With the analysis among related 6 patents applied in the last 5 years. We discover 2 most active companies in this area.
Zhejiang Sheng, China
Patent: 1
With the analysis among related 6 patents in last 5 years, we discover 1 new entrants.
Zhejiang Sheng, China
Patent: 1
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