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For the Inventor, By the Inventor

Toyota, Japan

Katsunori Yagi

This inventor holds 6 USPTO granted patents. Top assignee: Toyota Jidosha Kabushiki Kaisha. Active years: 1986-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsunori Yagi. Retrieved from https://idiyas.com/inventor/katsunori-yagi

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

USPTO Granted Patents = 6

% Patents Active = 83.3

Average Co-Inventor Count = 1.8

ph-index = 4

Forward Citations = 42(Granted Patents)


Location History:

  • Toyoake, JP (1986 - 1987)
  • Toyota, JP (2006 - 2010)

Company Filing History:

goldMedal6 out of 38,912 
 
Toyota Jidosha Kabushiki Kaisha
 patents

Years Active: 1986-2010

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6 patents (USPTO):Explore Patents
1. 7759831 - Switching device, generator-motor apparatus using switching device, drive system including generator-motor apparatus, and computer-readable recording medium on which a program for directing computer to perform control of generator-motor apparatus is recorded (2010-07-20),
2. 7456531 - Switching device, generator-motor apparatus using switching device, drive system including generator-motor apparatus, and computer-readable recording medium on which a program for directing computer to perform control of generator-motor apparatus is recorded (2008-11-25),
3. 6984783 - Power control unit for a vehicle (2006-01-10),
4. 4713766 - Method and apparatus for controlling air-fuel ratio in internal (1987-12-15),
5. 4653451 - Method and apparatus for detecting surging in internal combustion engine (1987-03-31),
6. 4587938 - Control device for controlling air-fuel ratio and spark timing of an (1986-05-13),

Title: Innovations of Katsunori Yagi in Generator-Motor Technology

Introduction

Katsunori Yagi is a prominent inventor based in Toyota, Japan. He has made significant contributions to the field of generator-motor technology, holding a total of six patents. His work focuses on innovative switching devices and generator-motor apparatuses that enhance efficiency and functionality.

Latest Patents

Yagi's latest patents include a variety of groundbreaking inventions. These patents encompass a switching device, a generator-motor apparatus utilizing the switching device, a drive system that includes the generator-motor apparatus, and a computer-readable recording medium containing a program for controlling the generator-motor apparatus. The generator-motor apparatus features a control circuit, an alternator, electrode plates with a horseshoe shape, and switching devices. Each switching device is constructed by sandwiching a MOS transistor between two electrodes and is sealed with resin. The design allows for direct attachment to the electrode plates through soldering, enabling the control circuit to effectively manage the switching devices, which can operate the alternator as either an electric motor or a power generator.

Career Highlights

Katsunori Yagi is currently employed at Toyota Jidosha Kabushiki Kaisha, where he continues to innovate in the automotive and energy sectors. His work has been instrumental in advancing technologies that integrate electric motors and generators, contributing to the development of more efficient energy systems.

Collaborations

Yagi collaborates with notable colleagues such as Nobuyuki Kobayashi and Toshimitsu Ito. Their combined expertise fosters a creative environment that drives innovation within their projects.

Conclusion

Katsunori Yagi's contributions to generator-motor technology exemplify the spirit of innovation in the automotive industry. His patents reflect a commitment to enhancing energy efficiency and functionality in modern 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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