operated by abnormal ratio of voltage and current

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Patents Grantslast 30 patents

Information Patent Grant
Safety switch input diagnosis device and work machine using safety...
- Patent number 11,562,864
- Issue date Jan 24, 2023
- Hitachi Construction Machinery Co., Ltd.
- Yuichi Kuramochi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Fuseless switch for cross phase of power line communication
- Patent number 11,005,529
- Issue date May 11, 2021
- Yen-Po Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power transmission apparatus
- Patent number 10,741,348
- Issue date Aug 11, 2020
- Richtek Technology Corporation
- Wei-Hsu Chang
- G01 - MEASURING TESTING
Information Patent Grant
1894119
- Patent number 1,894,119
- Issue date Jan 10, 1933
- H01 - BASIC ELECTRIC ELEMENTS