Tokyo, Japan

Nobuo Kitajima

This inventor holds 19 USPTO granted patents and 5 published patent applications, primarily in Coil Technology. Top assignees: Tdk Corporation, Tdk Korea Corporation. Active years: 2001-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuo Kitajima. Retrieved from https://idiyas.com/inventor/nobuo-kitajima

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

USPTO Granted Patents = 19 

% Patents Active = 78.9

Average Co-Inventor Count = 2.8

ph-index = 3

Forward Citations = 34(Granted Patents)


Company Filing History:


Years Active: 2001-2026

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Areas of Expertise:
Coil Device
Transformer
Leakage Transformer
Coil Component
Choke Coil
Electronic Component
Discharge Lamp
Switching Power Supply
Wire-Support Member
PFC Circuit
Manufacturing Method
19 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Nobuo Kitajima

Introduction

Nobuo Kitajima is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of coil devices. With a total of 19 patents to his name, Kitajima's work has had a lasting impact on the industry.

Latest Patents

Among his latest innovations is a coil device that features a coreless coil and terminals connected to the end portions of the coil. This design includes positioning portions that regulate the position of the coreless coil at the terminals. Another notable patent is a highly reliable coil device that incorporates a coil formed of flat wire. This device includes a first terminal with a wire connecting portion that has a recessed accommodation for a lead-out portion of the coil, as well as a second terminal with a similar design. The first and second accommodation portions are strategically displaced along the winding axis direction of the coil, enhancing its functionality.

Career Highlights

Throughout his career, Nobuo Kitajima has worked with notable companies such as TDK Corporation and TDK Korea Corporation. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.

Collaborations

Kitajima has collaborated with esteemed colleagues, including Satoshi Shinbo and Masaaki Iwakura. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Nobuo Kitajima's contributions to the field of electrical engineering, particularly through his innovative coil devices, showcase his expertise and dedication as an inventor. His work continues to influence the industry and inspire future innovations.

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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