Marugame, Japan

Katuhide Nagaoka

This inventor holds 1 USPTO granted patent. Top assignees: Doryokuro Kakunenryo Kaihatsu Jigyodan, Toyo Tanso Co., Ltd.. Active years: 1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katuhide Nagaoka. Retrieved from https://idiyas.com/inventor/katuhide-nagaoka

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


% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 1996

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1 patent (USPTO):Explore Patents

Title: Katuhide Nagaoka: Innovator in Copper-Carbon Composite Materials

Introduction

Katuhide Nagaoka is a remarkable inventor based in Marugame, Japan, known for his innovative work in materials science. His groundbreaking research focuses on developing composite materials, particularly those combining copper and carbon in a functionally graded manner. With one patent to his name, Nagaoka stands out for his contributions to the field of composite materials.

Latest Patents

Nagaoka's patent, titled "Copper-Carbon Composite Material with Graded Function and Method for Manufacturing," presents a unique composite material where the composition ratio of copper to carbon continuously varies in at least one predetermined direction. This innovative material is manufactured through a series of steps including impregnating carbon felt with resin, thermally compressing, and carbonizing the resin to create a preformed carbon material. Subsequently, pyrolytic carbon is deposited through the Chemical Vapor Infiltration (CVI) method, resulting in a graded carbon material where bulk density changes in a specified direction. The final process enhances the wettability of the carbon material with copper through siliconization before impregnating the pores with copper, yielding an advanced composite material with unique properties.

Career Highlights

Throughout his professional journey, Katuhide Nagaoka has worked with notable companies including Doryokuro Kakunenryo Kaihatsu Jigyodan and Toyo Tanso Co., Ltd. His experiences in these organizations provided a strong foundation for his innovative work in composite materials, showcasing his dedication to advancing material science.

Collaborations

Nagaoka’s success can also be attributed to collaborations with esteemed colleagues such as Tadashi Maruyama and Masaki Okada. Working alongside such talented individuals has contributed to the advancement of their collective research and the realization of innovative materials.

Conclusion

Katuhide Nagaoka's work in developing copper-carbon composite materials has made a significant impact in the field of materials science. His innovative approach and dedication to creating functionally graded materials demonstrate the potential of composite technology in various applications. Nagaoka’s contributions highlight the importance of continuous innovation and collaboration in driving advancements in material sciences.

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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