Kyoto, Japan

Hirofumi Sakai

This inventor holds 3 USPTO granted patents. Top assignee: Matsushita Electric Industrial Co., Ltd.. Active years: 2004-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirofumi Sakai. Retrieved from https://idiyas.com/inventor/hirofumi-sakai-w7f0x5jg

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

Calculating rank

% Patents Active = 66.7

Average Co-Inventor Count = 4.1

ph-index = 3

Forward Citations = 22(Granted Patents)


Location History:

  • Nagaokakyo, JP (2004)
  • Kyoto, JP (2005)

Company Filing History:


Years Active: 2004-2005

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3 patents (USPTO):Explore Patents

Title: Hirofumi Sakai: Innovator in Motor Drive Technology

Introduction

Hirofumi Sakai is a notable inventor based in Kyoto, Japan. He has made significant contributions to the field of motor drive technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and control of motor drivers, which are essential components in various electronic devices.

Latest Patents

Sakai's latest patents include innovative designs for PWM controlled motor drives. One of his patents describes a motor driver that features multiple output circuits, each equipped with two switching elements connected in series. This design incorporates a phase switch circuit that optimizes the switching operation of the elements based on predetermined electrical angles. Another patent outlines a motor drive method that involves turning ON a switching element for a specific time period, allowing for precise control over the motor's performance.

Career Highlights

Hirofumi Sakai is currently employed at Matsushita Electric Industrial Co., Ltd., a leading company in the electronics industry. His work at Matsushita has allowed him to develop and refine his innovative motor drive technologies, contributing to the company's reputation for excellence in engineering.

Collaborations

Sakai has collaborated with several talented individuals in his field, including Tomoharu Yokouchi and Masashi Inao. These collaborations have fostered a creative environment that encourages the development of cutting-edge technologies.

Conclusion

Hirofumi Sakai's contributions to motor drive technology exemplify his dedication to innovation and engineering excellence. His patents reflect a deep understanding of motor control systems, making him a valuable asset in the field of electronics.

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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