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For the Inventor, By the Inventor

Nagaokakyo, Japan

Hitoshi Tsuji

This inventor holds 13 USPTO granted patents, primarily in Power Electronics. Top assignee: Murata Manufacturing Co., Ltd.. Active years: 1999-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hitoshi Tsuji. Retrieved from https://idiyas.com/inventor/hitoshi-tsuji

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

Calculating rank
USPTO Granted Patents = 13

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 7

Forward Citations = 100(Granted Patents)


Location History:

  • Sagamihara, JP (1999 - 2001)
  • Tokyo-to, JP (2003)
  • Machida, JP (2002 - 2006)
  • Higashiomi, JP (2012)
  • Nagaokakyo, JP (2015 - 2019)

Company Filing History:

goldMedal13 out of 13,796 
 
Murata Manufacturing Co., Ltd.
 patents

Years Active: 1999-2019

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Areas of Expertise:
Energy Management System
Inverter Device
Power Supply Device
High Frequency Amplifier
Inductor
DC-DC Converter
Switching Power Supply
Overcurrent Protection Circuit
Printed Circuit Boards
Electric Source Device
13 patents (USPTO):Explore Patents
1. 10374434 - Energy management system (2019-08-06),
2. 9419542 - Inverter device (2016-08-16),
3. 9350299 - Power supply device for high frequency power amplifying circuit and high frequency power amplifying apparatus (2016-05-24),
4. 9148090 - Power supply device for high frequency power amplification circuit and high frequency power amplification device (2015-09-29),
5. 8284010 - Inductor and DC-DC converter (2012-10-09),
6. 7042739 - Switching electric source device (2006-05-09),
7. 6574081 - DC-DC converter (2003-06-03),
8. 6459594 - Switching power supply apparatus and method (2002-10-01),
9. 6414861 - DC-DC converter (2002-07-02),
10. 6314005 - DC-DC converter which compensates for load variations (2001-11-06),
11. 5958562 - Printed circuit boards (1999-09-28),
12. 5933333 - Switching power supply apparatus (1999-08-03),
13. 5892665 - Overcurrent protection circuit (1999-04-06),

Title: Hitoshi Tsuji: Innovator in Energy Management Systems

Introduction

Hitoshi Tsuji is a prominent inventor based in Nagaokakyo, Japan. He has made significant contributions to the field of energy management, holding a total of 13 patents. His work focuses on developing advanced systems that enhance energy efficiency and stability.

Latest Patents

One of Tsuji's latest innovations is an energy management system that integrates a power generating device, a bidirectional DC-DC converter, and an inverter connected to an HVDC bus. This system is designed to stabilize the output power of the inverter by adjusting the gain characteristics of the bidirectional DC-DC converter in response to variations in output current. Another notable invention is a three-level inverter circuit that includes multiple front-stage and rear-stage switches, which effectively outputs an intermediate voltage from a DC power supply. These inventions reflect Tsuji's commitment to advancing energy technology.

Career Highlights

Hitoshi Tsuji is associated with Murata Manufacturing Co., Ltd., a leading company in the electronics industry. His work at Murata has allowed him to focus on innovative solutions that address contemporary energy challenges. Tsuji's patents are a testament to his expertise and dedication to improving energy management systems.

Collaborations

Throughout his career, Tsuji has collaborated with notable colleagues, including Tadahiko Matsumoto and Jun Nagai. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Hitoshi Tsuji is a key figure in the field of energy management, with a strong portfolio of patents that demonstrate his innovative spirit. His contributions continue to influence the industry and pave the way for future advancements in energy technology.

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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