Kokubunji, Japan

Masanori Maruyama

This inventor holds 24 USPTO granted patents and 1 published patent application and 2 EPO patents, primarily in Power Supply Systems. Top assignees: Hitachi, Ltd., Mitsubishi Heavy Industries Limited, Nippon Hoso' Kyokai. Active years: 1982-2025.

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

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

USPTO Granted Patents = 24 

% Patents Active = 100.0

 

Average Co-Inventor Count = 3.2

ph-index = 7

Forward Citations = 214(Granted Patents)


Location History:

  • Kokubunji, JP (1982 - 1987)
  • Tokorozawa, JP (1988 - 2000)
  • Tokyo, JP (1987 - 2022)

Company Filing History:


Years Active: 1982-2025

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Areas of Expertise:
Bidirectional DC-DC Converter
Distributed Power Supply
Charging Control
Energy Management
Image Signal Encoding
Television Camera
Electrostatic Deflection
Electron Beam
Motion Vector Detection
Portable Terminal
Multimedia Communication
Frame Skip Encoding
24 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Masanori Maruyama

Introduction: Masanori Maruyama, a prominent inventor based in Kokubunji, Japan, has made significant contributions to the field of distributed power supply systems. With an impressive portfolio of 23 patents, Maruyama has become a key figure in the development of advanced technologies that enhance energy efficiency and reliability.

Latest Patents: Among his latest inventions are several groundbreaking patents related to distributed power supply systems. One notable innovation is a control device for these systems, which integrates multiple power supply groups, including wind turbine generators. This device features a rectifier designed to convert alternating current (AC) to direct current (DC), allowing for efficient power transmission. Additionally, Maruyama has developed a charging and discharging control device that manages the operation of battery packs based on temperature measurements. This ensures optimal performance by connecting only a portion of battery groups under specific conditions.

Career Highlights: Maruyama's career includes significant tenures at recognized companies such as Hitachi, Ltd. and Nippon Hoso Kyokai. His experience in these organizations has shaped his expertise and allowed him to contribute to notable technological advancements.

Collaborations: Throughout his journey, Maruyama has collaborated with talented professionals, including Masakazu Fukushima and Shinichi Kato. These partnerships have facilitated the sharing of knowledge and ideas, enriching the innovations they pursued together.

Conclusion: Masanori Maruyama's dedication to innovation is evident in his extensive patent portfolio and the impactful technologies he has developed. His contributions not only highlight his expertise but also demonstrate the importance of continuous advancement in the field of energy management and distribution. As the demand for sustainable energy solutions grows, inventors like Maruyama will play a crucial role in shaping a more efficient future.

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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