Nitta, Japan

Masayuki Tozuka

This inventor holds 3 USPTO granted patents. Top assignees: Sawafuji Electric Co., Ltd., Honda Giken Kogyo Kabushiki Kaisha. Active years: 2000-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masayuki Tozuka. Retrieved from https://idiyas.com/inventor/masayuki-tozuka

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 1.8

ph-index = 2

Forward Citations = 40(Granted Patents)


Location History:

  • Nitta-machi, JP (2000)
  • Gunma, JP (2001)

Company Filing History:


Years Active: 2000-2025

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3 patents (USPTO):Explore Patents

Title: Masayuki Tozuka: Innovator in Portable Refrigeration and Generator Technology

Introduction

Masayuki Tozuka is a notable inventor based in Nitta-machi, Japan. He has made significant contributions to the fields of refrigeration and generator technology. With a total of 3 patents to his name, Tozuka's work reflects his innovative spirit and technical expertise.

Latest Patents

Among his latest patents is a portable refrigerator, which showcases his ability to create practical solutions for everyday needs. Additionally, he has developed a stator for an outer rotor-type multi-pole generator. This invention features a unique design where coils of an identical type, but different from a specific coil, are wound around cylindrical portions of a bobbin. The design includes a recess in a guide projection that allows for effective insulation between the cylindrical portion and a crossover wire, ensuring stable insulating properties while minimizing operational steps.

Career Highlights

Tozuka has worked with prominent companies such as Sawafuji Electric Co., Ltd. and Honda Giken Kogyo Kabushiki Kaisha. His experience in these organizations has undoubtedly contributed to his innovative capabilities and understanding of complex engineering challenges.

Collaborations

Throughout his career, Tozuka has collaborated with talented individuals, including Hidetoshi Hirano and Seiichi Kakinuma. These partnerships have likely fostered a creative environment that encourages the exchange of ideas and technological advancements.

Conclusion

Masayuki Tozuka's contributions to the fields of refrigeration and generator technology highlight his innovative mindset and dedication to engineering excellence. His patents reflect a commitment to improving everyday technology, making him a significant figure in the world of invention.

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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