Sakai, Japan

Nobuyuki Sumida

This inventor holds 4 USPTO granted patents. Top assignees: Daihen Corporation, Allied Corporation. Active years: 1986-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuyuki Sumida. Retrieved from https://idiyas.com/inventor/nobuyuki-sumida

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


% Patents Active = 100.0

Average Co-Inventor Count = 5.5

ph-index = 4

Forward Citations = 28(Granted Patents)


Location History:

  • Osaka, JP (1990)
  • Sakai, JP (1986 - 1993)

Company Filing History:


Years Active: 1986-1993

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4 patents (USPTO):Explore Patents

Title: Nobuyuki Sumida: Innovator in Transformer Technology

Introduction

Nobuyuki Sumida is a notable inventor based in Sakai, Japan. He has made significant contributions to the field of transformer technology, holding a total of 4 patents. His innovative approaches have paved the way for advancements in manufacturing methods for transformers.

Latest Patents

Sumida's latest patents include a "Fabrication method for transformers with an amorphous core." This method involves creating transformers with cores made from a lamination body of strips made of an amorphous magnetic alloy. The process includes forming a ring-like lamination body using a grindstone cutter and gas coolant, shaping it into a rectangular core, and assembling windings with the core. Another significant patent is the "Method of manufacturing wound transformer cores," which details the steps for creating rectangular wound cores, including applying adhesive agents and forming lamination blocks.

Career Highlights

Throughout his career, Nobuyuki Sumida has worked with prominent companies such as Daihen Corporation and Allied Corporation. His experience in these organizations has contributed to his expertise in transformer technology and innovation.

Collaborations

Some of his notable coworkers include Katsumi Hanaoka and Yasuo Yamamoto. Their collaboration has likely fostered a creative environment that encourages innovation in their projects.

Conclusion

Nobuyuki Sumida's contributions to transformer technology through his patents and career achievements highlight his role as a significant inventor in the field. His work continues to influence advancements in manufacturing methods for transformers.

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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