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Top 20 Fast-growings companies in Alternator
by Most Patent Filing In 5 Years in the Japan in 2021

The Alternator top 20 is Discovery PatSnap’ annual ranking of the top 20 Most Patent Filing In 5 Years Alternator Fast-growings 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.
#
Company Name
Region
Tech Topics
Total
1
Patent: 30
2
Patent: 28
3
Patent: 20
4
Patent: 17
5
Patent: 17
6
Patent: 17
7
Patent: 17
8
Patent: 15
9
Patent: 13
10
Patent: 13
11
Patent: 10
12
Patent: 8
13
Patent: 8
14
Patent: 8
15
Patent: 8
16
Patent: 6
17
Patent: 5
18
Patent: 5
19
Patent: 4
20
Patent: 3
Page generation time: Jun 26 2025