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For the Inventor, By the Inventor

Hirakata, Japan

Katsutaro Akamatsu

This inventor holds 5 USPTO granted patents. Top assignee: Kubota Corporation. Active years: 1977-1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsutaro Akamatsu. Retrieved from https://idiyas.com/inventor/katsutaro-akamatsu

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 = 3.7

ph-index = 2

Forward Citations = 14(Granted Patents)


Location History:

  • Hirakata, JA (1977)
  • Hirakata, JP (1979 - 1980)

Company Filing History:

goldMedal5 out of 2,914 
 
Kubota Corporation
 patents

Years Active: 1977-1980

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5 patents (USPTO):Explore Patents
1. 4224061 - High corrosion resistant and high strength medium Cr and low Ni (1980-09-23),
2. 4218268 - High corrosion resistant and high strength medium Cr and low Ni (1980-08-19),
3. 4138279 - Method of producing stainless steel product (1979-02-06),
4. 4050929 - Heat resisting alloyed steel (1977-09-27),
5. 4050927 - Alloyed steel (1977-09-27),

Title: Katsutaro Akamatsu: Innovator in Stainless Steel Technology

Introduction

Katsutaro Akamatsu is a notable inventor based in Hirakata, Japan. He has made significant contributions to the field of materials science, particularly in the development of high corrosion resistant and high strength stainless steels. With a total of 5 patents to his name, Akamatsu's work has had a profound impact on the industry.

Latest Patents

Akamatsu's latest patents focus on a high corrosion resistant and high strength medium chromium and low nickel stainless cast steel. This innovative material is produced from a combination of predetermined amounts of elements at specific weight percentages, with the remaining portion primarily consisting of iron. When subjected to heat treatments under predetermined conditions, this stainless steel exhibits superior yield strength and stable corrosion resistance, particularly in environments influenced by strong acids.

Career Highlights

Katsutaro Akamatsu is currently associated with Kubota Corporation, where he continues to advance his research and development efforts. His work has not only contributed to the company's reputation but has also set new standards in the materials used for various applications.

Collaborations

Throughout his career, Akamatsu has collaborated with esteemed colleagues such as Shinichi Murakami and Hisashi Hiraishi. These partnerships have fostered innovation and have been instrumental in the successful development of his patented technologies.

Conclusion

Katsutaro Akamatsu stands out as a key figure in the field of stainless steel technology. His innovative patents and collaborations have significantly advanced the industry, showcasing his dedication to improving material performance and durability.

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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