Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11355919 | Current differential relay apparatus | — | 2022-06-07 |
| 11355915 | Protection relay | Kazuma Murata | 2022-06-07 |
| 11050237 | Circuit breaker failure protection relay and protection relay system | Satoshi Takemura | 2021-06-29 |
| 10955447 | Fault waveform recording device | Satoshi Takemura | 2021-03-23 |
| 10923901 | Protective relay device | — | 2021-02-16 |
| 10910813 | Intelligent electronic device | — | 2021-02-02 |
| 10714924 | Ground fault overvoltage relay device | Tomoyoshi Matsumoto, Satoshi Takemura | 2020-07-14 |
| 10534090 | Process bus-applied protection system | — | 2020-01-14 |
| 10317452 | Testing device, testing method, and program for power system protection control system | — | 2019-06-11 |
| 9941739 | Process bus associated protective control system, merging unit, and calculation device | — | 2018-04-10 |
| 9680297 | Current differential relay | — | 2017-06-13 |
| 8923361 | Protection control apparatus | — | 2014-12-30 |
| 7742884 | Sampling frequency control method and protective relay | — | 2010-06-22 |