Kawasaki, Japan

Hidenori Ohkubo

This inventor holds 1 USPTO granted patent. Top assignee: Fuji Electric Co., Ltd.. Active years: 1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hidenori Ohkubo. Retrieved from https://idiyas.com/inventor/hidenori-ohkubo

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


% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 5(Granted Patents)


Company Filing History:


Years Active: 1994

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1 patent (USPTO):Explore Patents

Title: Hidenori Ohkubo: Innovator in Inverter Technology

Introduction

Hidenori Ohkubo is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of electrical engineering, particularly in inverter technology. His innovative work has led to the development of a patented device that enhances the efficiency and reliability of power supply systems.

Latest Patents

Hidenori Ohkubo holds a patent for a Constant Voltage Constant Frequency (CVCF) inverter and a method for controlling it. This invention includes a main circuit, a voltage control loop, and a frequency control loop. In normal operating mode, these loops perform constant voltage and constant frequency control. During lap switching operations, a comparator detects when the output current exceeds a predetermined level. A switch is then closed to input the effective power component into the frequency control loop. This method allows for the adjustment of the inverter's output frequency based on effective power, reducing the phase difference between the inverter's output voltage and an external power supply. Consequently, this innovation decreases cross current, protects inverter components, and ensures reliable power supply.

Career Highlights

Hidenori Ohkubo is associated with Fuji Electric Co., Ltd., where he has contributed to various projects and advancements in inverter technology. His work has been instrumental in improving the performance and safety of electrical systems.

Collaborations

Hidenori has collaborated with notable colleagues such as Tetsuo Yasuda and Kazuhisa Manabe. Their combined expertise has furthered the development of innovative solutions in the field of electrical engineering.

Conclusion

Hidenori Ohkubo's contributions to inverter technology exemplify the impact of innovation in electrical engineering. His patented CVCF inverter represents a significant advancement in power supply systems, showcasing his dedication to enhancing efficiency and reliability in this critical field.

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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