Inventor
KEI KUBOTA
Inventor
JP
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F04Dprimary
F04DNon-positive-displacement pumps18%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy18%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution18%
C01BNon-metallic elements9%
C01GCompounds containing metals not covered by subclasses c01d or c01f9%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds9%
H01GCapacitors9%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters9%
PatentTitleYear
12,234,836Fan202511,795,952Electric pump and failure state notification method for electric pump202311,227,726Electrolyte solution for potassium ion battery, potassium ion battery, electrolyte solution for potassium ion capacitor, and potassium ion capacitor202211,145,863Positive electrode active material for potassium ion battery, positive electrode for potassium ion battery, and potassium ion battery2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2022Patents assigned to UNIV TOKYO SCIENCE FOUND (2)· patent assignee history
2021–2025Based in JP· patent location history
2023Patents assigned to YAMADA MFG CO LTD (1)· patent assignee history
2025Patents assigned to MINEBEA MITSUMI INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIV TOKYO SCIENCE FOUND | 2 | 2021–2022 |
| MINEBEA MITSUMI INC | 1 | 2025 |
| YAMADA MFG CO LTD | 1 | 2023 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 4 | 2021–2025 |