Tokyo, Japan

Makoto Tanikawa

This inventor holds 14 USPTO granted patents and 8 EPO patents, primarily in Power Conversion Technology. Top assignees: Mitsubishi Electric Corporation, Mitsubishi Denki Kabushiki Kaisha. Active years: 1999-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Makoto Tanikawa. Retrieved from https://idiyas.com/inventor/makoto-tanikawa

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

Calculating rank

% Patents Active = 64.3

 

Average Co-Inventor Count = 6.2

ph-index = 4

Forward Citations = 82(Granted Patents)


Location History:

  • Chiyoda-ku, JP (2014)
  • Tokyo, JP (1999 - 2018)

Company Filing History:


Years Active: 1999-2018

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Areas of Expertise:
Inverter Control
Power Conversion
AC/DC Converter
Motor Drive
Air Conditioner
Refrigerator
Blower
Compressor
Harmonic Suppression
Power Factor Correction
Transistor Module
Electric Motor Driver
14 patents (USPTO):Explore Patents

Title: Makoto Tanikawa: Innovator in Inverter Technology

Introduction

Makoto Tanikawa is a prominent inventor based in Tokyo, Japan, holding an impressive portfolio of 14 patents. His work primarily focuses on advanced inverter control technology, significantly impacting the fields of air conditioning and power conversion.

Latest Patents

Among his latest innovations is an inverter control device designed to optimize the functionality of inverter units that convert DC voltage to AC voltage. This device features a storage unit that manages synchronization-loss limits, a current calculation unit that assesses current limitations based on the DC motor's magnet temperature and bus voltage, and a control unit that maintains efficient operating frequency to prevent excess current.

Another noteworthy invention is a switch device used within power conversion devices. This device, which operates between a power supply and load, incorporates a switching element paired with a gate drive circuit to ensure stable control. Through intricate calculations and adjustments, Tanikawa's designs enhance the performance and reliability of various systems, including air blowers, compressors, refrigerators, and air conditioners.

Career Highlights

Tanikawa's career includes substantial contributions while working at leading companies like Mitsubishi Electric Corporation and Mitsubishi Denki Kabushiki Kaisha. These experiences provided him with a robust platform to innovate and develop his ideas into patented technologies.

Collaborations

Throughout his career, Tanikawa has collaborated with notable colleagues such as Koichi Arisawa and Shigeo Umehara. These partnerships have facilitated the exchange of insights and expertise, further advancing the field of inverter technology.

Conclusion

Makoto Tanikawa stands out as a leading figure in the realm of inverter technology, evidenced by his 14 patents. His ongoing commitment to innovation continues to play a crucial role in enhancing energy efficiency and performance across various applications.

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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