Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Sumito TOBE — 9 Patents

Hitachi: 9 patents #4,654 of 28,497Top 20%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Sumito TOBE has been granted 9 US patents while listed as an inventor at Hitachi. The first was granted in 2017 and the most recent in August 2022. Sumito TOBE ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Sumito TOBE in Tokyo, CA, JP.

Patents per Year

Patents granted per year, 2017 to 2022Bar chart with a peak of 3 patents in 2019.peak 32017: 1 patents20172019: 3 patents20192020: 1 patents20202021: 2 patents20212022: 2 patents2022

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
11404873 Power system operation assisting device and method, and oscillation suppression system Kenta KIRIHARA, Akira Tsubota, Yutaka Kokai, Masahiro YATSU, Hiroo HORII 2022-08-02
11379274 Hybrid spatial-temporal event probability prediction method Panitarn CHONGFUANGPRINYA, Bo Yang, Yanzhu Ye, Yasushi Tomita 2022-07-05
11183840 Multi-time scale energy storage management framework for performance-based frequency regulation (FR) market Yanzhu Ye, Bo Yang, Panitarn CHONGFUANGPRINYA 2021-11-23
11133674 System operation support device and method in power system, and wide-area monitoring protection control system Kenta KIRIHARA, Masahiro YATSU, Hiroo HORII, Jun Yamazaki 2021-09-28
10628896 System stability monitoring device and system stability monitoring system Jun Yamazaki, Masahiro YATSU, Yasuo Sato, Osamu Tomobe, Eisuke Kuroda 2020-04-21
10461538 System stabilization control device and power system control system Jun Yamazaki, Osamu Tomobe, Eisuke Kuroda, Akira Tsubota, Masahiro YATSU 2019-10-29
10371592 System stability monitoring apparatus and method Jun Yamazaki, Masahiro YATSU, Yasuo Sato, Osamu Tomobe, Eisuke Kuroda 2019-08-06
10222196 Electric power system monitoring device and electric power system monitoring system Jun Yamazaki, Masahiro YATSU, Osamu Tomobe, Tatsuki Inuduka 2019-03-05
9600610 Conversion method, program and system of power system data models Youichi Sugizaki 2017-03-21