Shanghai, China

Kun Ma

This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignee: Otis Elevator Company. Active years: 2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kun Ma. Retrieved from https://idiyas.com/inventor/kun-ma-kpaujv85

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.0

ph-index = 1


Company Filing History:


Years Active: 2020

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1 patent (USPTO):Explore Patents

Title: Kun Ma: Inventor in Motor Drive Control

Introduction

Kun Ma is an inventor based in Shanghai, China, associated with Otis Elevator Company. His patent work includes technology for frequency converters and motor drive control.

Latest Patents

Ma is named on one patent: “Frequency Converter, Bypass Frequency Conversion Control System and Switching Control Method Thereof.” The invention describes a frequency converter that can track the frequency and phase of a network voltage signal, then synchronize its output voltage with that signal. The approach is designed to provide fast, straightforward, low-cost synchronization with good synchronism. Ma’s listed portfolio includes 1 patent.

Career Highlights

Ma’s documented patent contribution concerns frequency conversion and synchronization in motor drive control, a technical area relevant to elevator systems and other motor-driven applications.

Collaborations

Chen Gao is identified as Ma’s coworker. The available information does not specify their roles or describe a joint contribution to the patent.

Conclusion

Kun Ma’s patent work focuses on synchronizing frequency-converter output with network voltage, addressing a practical control challenge in motor-driven systems.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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