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Top 10 Key Players companies in Kyanite
by Most Patent Filings in the Japan in 2021

The Kyanite top 10 is Discovery PatSnap’ annual ranking of the top 10 Most Patent Filings Kyanite Key Players in the Japan. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2021, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.
Kyanite is typically a blue aluminosilicate mineral, usually found in aluminium-rich metamorphic pegmatites and/or sedimentary rock. Kyanite in metamorphic rocks generally indicates pressures higher than four kilobars. It is commonly found in quartz. Although potentially stable at lower pressure and low temperature, the activity of water is usually high enough under such conditions that it is replaced by hydrous aluminosilicates such as muscovite, pyrophyllite, or kaolinite. Kyanite is also known as disthene, rhaeticite and cyanite.
#
Company Name
Region
Tech Topics
Total
1
Shinagawa Refractories Co., Ltd.
Refractory,Industrial engineering,Building material,
...[+2]
Patent: 2
2
Hitachi Powdered Metals Co., Ltd.
Mining engineering,Natural resource management,Metallurgy,
...[+2]
Patent: 2
3
NIPPON STEEL Stainless Steel Corp.
Mill,Metal,Mining engineering,
...[+1]
Patent: 2
4
Kurosaki Refractories Co. Ltd.
Refractory,Materials science,Building material,
...[+1]
Patent: 2
5
Toshiba Ceramics Co. Ltd.
Patent: 2
6
Panasonic Holdings Corp.
Semiconductor,Industrial engineering,Electronics,
...[+2]
Patent: 1
7
Kobe Steel, Ltd.
Welding,Electronics,Mining engineering,
...[+2]
Patent: 1
8
Hitachi Zosen Corp.
Mechanical engineering,Waste-to-energy,Environmental protection,
...[+2]
Patent: 1
9
Sumitomo Osaka Cement Co., Ltd.
Cement,Building material,Precipitated calcium carbonate,
...[+2]
Patent: 1
10
AGC
Fluorine,Glazing,Chemical engineering,
...[+2]
Patent: 1
Page generation time: Jun 20 2025