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For the Inventor, By the Inventor

Tokyo, Japan

Masahiro Kinoshita

This inventor holds 64 USPTO granted patents and 8 EPO patents, primarily in Power Conversion Systems (CPC class H02M). Top assignees: Toshiba Mitsubishi-Electric Industrial Systems Corporation, Omron Corporation, Fuji Jukogyo Kabushiki Kaisha. Active years: 1997-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiro Kinoshita. Retrieved from https://idiyas.com/inventor/masahiro-kinoshita

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

USPTO Granted Patents = 64

% Patents Active = 93.8

 

Average Co-Inventor Count = 2.6

ph-index = 10

Forward Citations = 1,574(Granted Patents)

Forward Citations (Not Self Cited) = 1,538(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Oota, JP (1997 - 1998)
  • Ota, JP (1998 - 2000)
  • Mitaka, JP (2001)
  • Kyoto, JP (2003 - 2015)
  • Yamaga, JP (2016)
  • Minato-ku, JP (2012 - 2018)
  • Chuo-ku, JP (2016 - 2020)
  • Tokyo, JP (2000 - 2024)

Company Filing History:

goldMedal36 out of 518 
 
Toshiba Mitsubishi-Electric Industrial Systems Corporation
 patents
silverMedal10 out of 4,214 
 
Omron Corporation
 patents
bronzeMedal9 out of 2,208 
 
Fuji Jukogyo Kabushiki Kaisha
 patents
4. 9 out of 179 
 
Tmeic Corporation
 patents
5. 5 out of 16,618 
 
Mitsubishi Electric Corporation
 patents
6. 1 out of 1 
 
Kobe Electric Industry Inc.
 patent
where one patent can have more than one assignee

Years Active: 1997-2026

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Areas of Expertise:
Power Conversion
Uninterruptible Power Supply
Reactive Power Compensation
Control Device
Ground Fault Detection
Power Supply System
Inverter
Modular Power Supply
Cooling Units
Electromagnetic Relay
Three-Level Converter
PWM Control Circuit
64 patents (USPTO):Explore Patents
1. 12738832 - Multilevel power conversion system, and circuitry of multilevel power conversion system (2026-09-15),
2. 12732119 - Power conversion system (2026-09-08),
3. 12694547 - Output control device, distance measuring device comprising the same, output control method, and output control program (2026-07-28),
4. 12689296 - DC power converter (2026-07-21),
5. 12601586 - Floor surface condition detection device, distance measuring device equipped with same, floor surface condition detection method, and floor surface condition detection program (2026-04-14),
6. 12438443 - Controller for power conversion system (2025-10-07),
7. 12416935 - Control device and power conversion system (2025-09-16),
8. 12301132 - Multiple power conversion system (2025-05-13),
9. 12166430 - Electric power conversion apparatus and electric power conversion system (2024-12-10),
10. 12051983 - Power conversion system having a plurality of power conversion devices connected in parallel (2024-07-30),
11. 12046991 - Multiplex power conversion system having means to prevent failure spread (2024-07-23),
12. 12040695 - Power conversion device and method for manufacturing the same (2024-07-16),
13. 11942874 - Control system of power converter (2024-03-26),
14. 11817774 - Control device for power converter (2023-11-14),
15. 11289999 - Power conversion device and power conversion system (2022-03-29),

Title: Masahiro Kinoshita: Innovative Electrical Engineer and Inventor

Introduction

Masahiro Kinoshita is a prominent inventor based in Tokyo, Japan, known for his significant contributions to electrical engineering. With an impressive portfolio of 56 patents, Kinoshita has made remarkable advancements in electric power conversion technologies.

Latest Patents

Kinoshita's latest inventions include the development of an electric power conversion apparatus and an electric power conversion system. The electric power conversion apparatus features a circuit that allows for the seamless conversion of DC power to AC power and vice versa. It includes essential components such as a DC switch, an AC switch, and a control circuit, allowing for efficient power management and measurement.

Additionally, his power conversion system comprises multiple parallel-connected power conversion devices, specifically designed to enhance the conversion of DC to AC power. This system utilizes advanced LC low-pass filtering techniques, ensuring optimal performance and reliability.

Career Highlights

Throughout his career, Kinoshita has collaborated with leading organizations including Toshiba Mitsubishi-Electric Industrial Systems Corporation and Fuji Jukogyo Kabushiki Kaisha. His work at these companies has been instrumental in driving innovation and improving electrical systems.

Collaborations

Kinoshita has worked alongside notable colleagues such as Yushin Yamamoto and Tatsuaki Amboh, furthering his contributions to the field. These collaborations have enriched Kinoshita’s engineering expertise and allowed him to tackle complex challenges in power conversion.

Conclusion

Masahiro Kinoshita is a valuable figure in the field of electrical engineering, with a rich history of innovation through his patented inventions. His work continues to influence the development of electric power systems, establishing him as an esteemed inventor in the industry.

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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