Nakatsugawa, Japan

Ippei Hagiwara

This inventor holds 5 USPTO granted patents and 1 published patent application. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1984-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ippei Hagiwara. Retrieved from https://idiyas.com/inventor/ippei-hagiwara

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

USPTO Granted Patents = 5 

% Patents Active = 100.0

Average Co-Inventor Count = 2.5

ph-index = 5

Forward Citations = 72(Granted Patents)


Location History:

  • Gifu, JP (1989)
  • Nakatsugawa, JP (1984 - 1990)

Company Filing History:


Years Active: 1984-1990

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5 patents (USPTO):Explore Patents

Title: The Innovative Mind of Ippei Hagiwara

Introduction

Ippei Hagiwara is a notable inventor based in Nakatsugawa, Japan. He has made significant contributions to the field of engineering, particularly in the design of advanced mechanical systems. With a total of five patents to his name, Hagiwara continues to push the boundaries of innovation.

Latest Patents

One of Hagiwara's latest inventions is an axial-flow fan with a tapered hub and duct. This design features a motor support, a frame with a cylindrical inner surface, and a boss fixed to the drive shaft. The blades extend radially from the boss's cylindrical outer surface. The design includes legs that connect the frame and motor support, along with surfaces inclined to reduce air flow resistance. Additionally, the downstream end of the air duct is gradually expanded to enhance air flow efficiency. Another embodiment includes cut-away portions at the upstream end of the boss to enlarge the cross-sectional area for air flow.

Career Highlights

Hagiwara is currently employed at Mitsubishi Denki Kabushiki Kaisha, where he applies his expertise in mechanical engineering. His work has been instrumental in developing innovative solutions that improve the performance of electric motors and fans.

Collaborations

Throughout his career, Hagiwara has collaborated with talented individuals such as Kazuhiro Yasumoto and Naoyuki Hara. These partnerships have fostered a creative environment that encourages the exchange of ideas and technological advancements.

Conclusion

Ippei Hagiwara's contributions to the field of engineering exemplify the spirit of innovation. His patents reflect a commitment to improving mechanical systems and enhancing efficiency. As he continues to develop new technologies, Hagiwara remains a key 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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