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Top 20 Fast-growings companies in Catalytic converter
by Most Patent Filing In 5 Years in the Japan in 2020

The Catalytic converter top 20 is Discovery PatSnap’ annual ranking of the top 20 Most Patent Filing In 5 Years Catalytic converter Fast-growings in the Japan. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2020, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.
A catalytic converter is an exhaust emission control device that reduces toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction (an oxidation and a reduction reaction). Catalytic converters are usually used with internal combustion engines fueled by either gasoline or diesel—including lean-burn engines as well as kerosene heaters and stoves.
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Company Name
Region
Tech Topics
Total
1
Patent: 61
2
Patent: 38
3
Patent: 19
4
Patent: 15
5
Patent: 13
6
Patent: 12
7
Patent: 8
8
Patent: 8
9
Patent: 7
10
Patent: 5
11
Patent: 4
12
Patent: 3
13
Patent: 3
14
Patent: 3
15
Patent: 3
16
Patent: 2
17
Patent: 2
18
Patent: 2
19
Patent: 2
20
Patent: 1
Page generation time: Aug 11 2025