Shiga, Japan

Tadao Nagai

This inventor holds 7 USPTO granted patents. Top assignee: Murata Manufacturing Co., Ltd.. Active years: 1998-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadao Nagai. Retrieved from https://idiyas.com/inventor/tadao-nagai-9w3xbv3l

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

Calculating rank

% Patents Active = 85.7

Average Co-Inventor Count = 1.8

ph-index = 2

Forward Citations = 28(Granted Patents)


Location History:

  • Kyoto-fu, JP (2004)
  • Shiga-ken, JP (1998 - 2006)

Company Filing History:


Years Active: 1998-2006

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7 patents (USPTO):Explore Patents

Title: Tadao Nagai: Innovator in Transformer Technology

Introduction

Tadao Nagai is a prominent inventor based in Shiga, Japan. He has made significant contributions to the field of transformer technology, holding a total of 7 patents. His innovative designs have advanced the efficiency and functionality of electrical components.

Latest Patents

One of Tadao Nagai's latest patents is the igniter transformer. This device features a secondary coil and a primary coil that are closely coupled. It utilizes a flat multicore wire, formed by bonding round single-core wires side by side, which is edgewise wound to optimize performance. The primary coil is constructed from a wide thin metal sheet, wound perpendicularly to the secondary coil's axis.

Another notable patent is the high-voltage transformer. This transformer includes a bobbin that holds a core at its center, with eight winding grooves arranged along the core's central axis. The design incorporates a primary coil wound around the outermost grooves and a secondary coil wound around the central grooves, ensuring effective distribution of turns. Diodes are connected to the secondary coil to facilitate electrical flow.

Career Highlights

Tadao Nagai is currently employed at Murata Manufacturing Co., Ltd., where he continues to innovate and develop new technologies. His work has been instrumental in enhancing the capabilities of transformers used in various applications.

Collaborations

Throughout his career, Tadao has collaborated with notable colleagues, including Hisashi Takiguchi and Masahiko Kitamoto. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies.

Conclusion

Tadao Nagai's contributions to transformer technology exemplify his dedication to innovation. His patents reflect a deep understanding of electrical engineering and a commitment to advancing the field. His work continues to influence the industry and inspire future inventors.

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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