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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Li Lu — 9 Patents

Hitachi: 9 patents #4,654 of 28,497Top 20%
Tokyo, JP: #17,063 of 90,295 inventorsTop 20%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Li Lu has been granted 9 US patents while listed as an inventor at Hitachi. The first was granted in 2018 and the most recent in May 2024. Li Lu ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Li Lu in Tokyo, JP.

Patents per Year

Patents granted per year, 2018 to 2024Bar chart with a peak of 3 patents in 2018.peak 32018: 3 patents20182019: 2 patents20192020: 1 patents20202022: 2 patents20222024: 1 patents2024

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
11994448 Leakage oil detection device and leakage oil detection method Satoshi Ichimura, Akira Nishimizu, Akira YAMAGISHI 2024-05-28
11494888 Work terminal, oil leakage detection apparatus, and oil leakage detection method Akira Nishimizu, Toshiaki Rokunohe, Akira YAMAGISHI 2022-11-08
11282635 Stationary induction electric apparatus Satoshi Ichimura, Daigo KOMESU, Shinji Fujita, Hiroshi Morita 2022-03-22
10755442 Oil leakage detector and oil leakage detection method and image processing unit Satoshi Ichimura, Tomohiro Moriyama, Jun Nukaga, Toshiaki Rokunohe, Akira YAMAGISHI +1 more 2020-08-25
10509021 Diagnosing device for on-load tap changing apparatus, diagnosing method for on-load tap changing apparatus, and diagnosing device for transformer Yoshio Hamadate, Toshiaki Rokunohe, Akira YAMAGISHI, Hideyuki Miyahara 2019-12-17
10234355 Leakage oil detection system Satoshi Ichimura, Tomohiro Moriyama, Jun Nukaga, Akira YAMAGISHI, Yasutomo Saito 2019-03-19
10113933 Leakage oil detector system and method Toshiaki Rokunohe, Tomohiro Moriyama, Jun Nukaga, Akira YAMAGISHI, Yasutomo Saito 2018-10-30
10090095 Stationary induction electrical apparatus Kenichi Kawamura, Hiroshi Miyao, Hiroshi Morita, Satoshi Ichimura, Jun Nukaga +4 more 2018-10-02
9898830 Oil leakage detector and oil leakage detection method Satoshi Ichimura, Tomohiro Moriyama, Jun Nukaga, Toshiaki Rokunohe, Akira YAMAGISHI +1 more 2018-02-20