Hiroshima, Japan

Keiji Mizuta

This inventor holds 8 USPTO granted patents and 8 published patent applications. Top assignees: Mitsubishi Heavy Industries Limited, Mitsubishi Jukogyo Kabushiki Kaisha, Kawasaki Steel Corporation. Active years: 1992-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiji Mizuta. Retrieved from https://idiyas.com/inventor/keiji-mizuta

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

USPTO Granted Patents = 8 

% Patents Active = 62.5

Average Co-Inventor Count = 4.8

ph-index = 4

Forward Citations = 35(Granted Patents)


Location History:

  • Hiroshima-ken, JP (2002)
  • Hiroshima, JP (1992 - 2013)

Company Filing History:


Years Active: 1992-2013

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8 patents (USPTO):Explore Patents

Title: Keiji Mizuta: Innovator in Machine Tool Technology

Introduction

Keiji Mizuta is a prominent inventor based in Hiroshima, Japan, known for his significant contributions to machine tool technology. With a total of eight patents to his name, Mizuta has developed innovative solutions that enhance the performance and efficiency of machine tools.

Latest Patents

Mizuta's latest patents include a spindle inclination detector and a spindle apparatus. The spindle inclination detector features a unique design that includes a string, gap sensor, and oil damper, which work together to measure and correct spindle inclination due to thermal deformation. This innovation is crucial for maintaining precision in machining operations. The spindle apparatus, on the other hand, utilizes a helium circulation system to minimize power loss and reduce motor power while providing a cooling effect. This simple yet effective design showcases Mizuta's ability to combine functionality with efficiency.

Career Highlights

Throughout his career, Mizuta has worked with notable companies such as Mitsubishi Heavy Industries Limited and Mitsubishi Jukogyo Kabushiki Kaisha. His experience in these organizations has allowed him to refine his skills and contribute to the advancement of machine tool technology.

Collaborations

Mizuta has collaborated with esteemed colleagues, including Kazuo Morimoto and Ritsuo Hashimoto. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in the field.

Conclusion

Keiji Mizuta's innovative spirit and dedication to improving machine tool technology have made him a significant figure in the industry. His patents reflect a commitment to enhancing efficiency and precision in machining processes.

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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