Numazu, Japan

Masanori Nakagawa

This inventor holds 21 USPTO granted patents and 1 published patent application and 1 EPO patent, primarily in Power Generation Technology. Top assignees: Kokusan Denki Co., Ltd., Mahle Electric Drives Japan Corporation. Active years: 2000-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masanori Nakagawa. Retrieved from https://idiyas.com/inventor/masanori-nakagawa

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

Calculating rank
USPTO Granted Patents = 21 

% Patents Active = 33.3


Average Co-Inventor Count = 2.7

ph-index = 10

Forward Citations = 236(Granted Patents)


Location History:

  • Susono, JP (2009)
  • Numazu, JP (2000 - 2019)

Company Filing History:


Years Active: 2000-2019

Loading Chart...
Loading Chart...
Areas of Expertise:
Power Supply Device
Electrical Rotating Machine
Inverter Controlled Generator
Magneto Generator
Starter Generator
Power Generating Apparatus
Electric Power Converter
Internal Combustion Engine
21 patents (USPTO):Explore Patents

Title: Masanori Nakagawa: Innovator in Power Supply Technology

Introduction: Masanori Nakagawa, an accomplished inventor based in Numazu, Japan, has made significant strides in power supply innovations. With a remarkable portfolio of 21 patents, his contributions to the field of internal combustion engines and power generation systems have paved the way for enhanced efficiency and functionality.

Latest Patents: Among his latest patents, Nakagawa has developed a power supply device for internal combustion engines. This device utilizes a generator driven by the engine to supply power to two loads: one that requires constant power for the engine's operation and another that can remain inactive during startup. The innovation features tightly coupled first and second generation coils within the generator to boost voltage to levels previously unattainable, utilizing chopper control for energizing currents effectively.

Another of Nakagawa's noteworthy inventions is a power generating apparatus that includes an AC generator, which supplies electric power to various loads through a sophisticated control mechanism. This apparatus features a controller that adjusts the phase of the AC control voltage applied to the generator’s armature winding based on the load voltage's status relative to a target value, optimizing performance under varying conditions.

Career Highlights: Masanori Nakagawa has held positions in notable companies such as Kokusan Denki Co., Ltd. and Mahle Electric Drives Japan Corporation. His extensive experience in these organizations has allowed him to drive innovations that enhance power generation technologies, demonstrating his expertise in the field.

Collaborations: Throughout his career, Nakagawa has collaborated with talented individuals like Kaoru Shinba and Yutaka Inaba. These partnerships have fostered an environment of creativity and innovation, contributing to the successful development of his patented technologies.

Conclusion: Masanori Nakagawa stands out in the realm of power supply technology, with a strong patent portfolio that embodies his dedication to enhancing internal combustion engines and power generation systems. His innovative spirit continues to inspire advancements in the industry, ensuring a brighter future for power 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]
Loading…