Tokyo, Japan

Ryutaro Numao

This inventor holds 1 USPTO granted patent and 2 published patent applications. Top assignee: Nippon Steel Chemical & Material Co., Ltd.. Active years: 2026.

USPTO Granted Patents = 1 

Average Co-Inventor Count = 1.0

ph-index = 1


Company Filing History:


Years Active: 2026

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1 patent (USPTO):Explore Patents

Title: Ryutaro Numao: Innovator in Spherical Alumina Particle Technology

Introduction

Ryutaro Numao is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced resin compositions. His innovative work focuses on improving thermal conductivity while maintaining the viscosity of resin mixtures.

Latest Patents

Ryutaro Numao holds a patent for a "Spherical alumina particle mixture, method for producing same, and resin composite composition and resin composite body each containing said spherical alumina particle mixture." This invention features a spherical alumina particle mixture that enhances thermal conductivity and reduces viscosity when combined with resin. The specific characteristics of this mixture include a particle size distribution where particles measuring 180 μm or more account for 0.04 wt % or less, an α-alumina crystal content rate of 45% or more, a specific surface area ranging from 0.3 to 1.0 m²/g, and a roundness of 0.85 or more.

Career Highlights

Ryutaro Numao is associated with Nippon Steel Chemical & Material Co., Ltd., where he has been instrumental in advancing the company's research and development initiatives. His expertise in materials science has positioned him as a key figure in the innovation of resin composite technologies.

Collaborations

Throughout his career, Numao has collaborated with notable colleagues, including Yasuhiro Aoyama and Masanori Ae. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Ryutaro Numao's contributions to the field of materials science, particularly through his patented innovations, highlight his role as a leading inventor in Japan. His work continues to influence the development of advanced resin compositions, showcasing the importance of innovation in material technology.

Profile summary based on public USPTO records.
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