Kitakyushu, Japan

Katsuyki Ohba

This inventor holds 1 USPTO granted patent. Top assignee: Nippon Steel Corporation. Active years: 1982.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsuyki Ohba. Retrieved from https://idiyas.com/inventor/katsuyki-ohba

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 = 3.0

ph-index = 1

Forward Citations = 6(Granted Patents)


Company Filing History:


Years Active: 1982

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1 patent (USPTO):Explore Patents

Title: Katsuyki Ohba: Innovator in Non-Oriented Silicon Steel Sheets

Introduction

Katsuyki Ohba is a prominent inventor based in Kitakyushu, Japan. He is known for his significant contributions to the field of materials science, particularly in the development of non-oriented silicon steel sheets. His innovative work has led to advancements that enhance the efficiency of electrical devices.

Latest Patents

Katsuyki Ohba holds a patent for a non-oriented silicon steel sheet with stable magnetic properties. This invention features a low watt loss value and uniform magnetic properties. The steel sheet contains 1.5-3.5% silicon, an exceedingly low carbon content, and a low soluble aluminum content. Additionally, it has a ratio of boron to nitrogen in the range of 0.4 to 2.0 and includes at least one rare earth element. This patent showcases his expertise in creating materials that improve energy efficiency.

Career Highlights

Ohba is associated with Nippon Steel Corporation, where he has made significant contributions to the company's research and development efforts. His work has not only advanced the company's technological capabilities but has also positioned it as a leader in the steel industry.

Collaborations

Throughout his career, Katsuyki Ohba has collaborated with notable colleagues, including Yoshiaki Shimoyama and Shigenobu Koga. These partnerships have fostered innovation and have been instrumental in the successful development of new materials.

Conclusion

Katsuyki Ohba's contributions to the field of materials science, particularly through his patent for non-oriented silicon steel sheets, highlight his role as an influential inventor. His work continues to impact the industry positively, paving the way for future innovations.

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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