Tokyo, Japan

Takayuki Kifuku

This inventor holds 87 USPTO granted patents and 19 EPO patents, primarily in Electric Power Steering (CPC class B62D5-04). Top assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Corporation, Itsubishi Denki Kabushiki Kaisha. Active years: 1997-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takayuki Kifuku. Retrieved from https://idiyas.com/inventor/takayuki-kifuku

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


% Patents Active = 71.3

 

Average Co-Inventor Count = 2.4

ph-index = 15

Forward Citations = 775(Granted Patents)

Forward Citations (Not Self Cited) = 726(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Tokyo-to, JP (1997 - 2000)
  • Chiyoda-ku, JP (2010 - 2021)
  • Tokyo, JP (1998 - 2022)

Company Filing History:


Years Active: 1997-2022

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Areas of Expertise:
Electric Power Steering
Motor Control
Angle Detection
Power Steering Controller
Vehicle Steering
Electronic Control
Power Inverter
Steering Control System
Automatic Steering
AC Rotary Machine
Tire Deformation Compensation
Vibration Suppression
87 patents (USPTO):Explore Patents

Title: The Innovations and Contributions of Takayuki Kifuku

Introduction

Takayuki Kifuku, based in Tokyo, Japan, is a prominent inventor known for his significant contributions to the field of motor control technologies. With an impressive portfolio of 87 patents, he has developed innovative solutions that enhance the efficiency and performance of motor systems, making a marked impact in the technology landscape.

Latest Patents

Among his latest innovations are two noteworthy patents. The first is a **Motor Control Device** designed to reduce noise generated by motors. This invention employs an offset voltage that is added equally to each phase of three-phase voltage command values outputted from an inverter, culminating in modified command values. By comparing these with a PWM carrier wave, the device outputs three-phase terminal voltages to the motor, effectively switching among multiple offset candidate voltages at set time intervals to vary timing for turning on and off these voltages equally across all phases.

The second patent is an **Angle Detecting Apparatus** that corrects the electrical angle frequency component of an angle signal. This apparatus computes an angle signal from both sine and cosine signals derived from the original angle signal. It calculates offset correction values for these signals and applies them to enhance the accuracy of angle signal readings captured from rotary machines.

Career Highlights

Takayuki Kifuku has built a distinguished career working with reputed companies such as Mitsubishi Denki Kabushiki Kaisha and Mitsubishi Electric Corporation. His expertise in the design and implementation of motor control systems has positioned him as a leading inventor in this domain.

Collaborations

Throughout his career, Kifuku has collaborated with highly skilled professionals, including Masahiko Kurishige and Masaki Matsushita. These collaborations have fostered a robust exchange of ideas and innovations, thereby advancing the collective contributions to the technology sector.

Conclusion

With a remarkable number of patents and several groundbreaking innovations, Takayuki Kifuku continues to pave the way for advancements in motor control technology. His dedication to improving efficiency and performance in motor systems reflects the essence of innovation, underscoring his status as a key inventor in the field. The continued relevance of his inventions speaks to the significant impact he has had on both industry practices and technological development.

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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