Yamaguchi, Japan

Kyouzi Muraoka

This inventor holds 1 USPTO granted patent. Top assignees: Mitsuboshi-Sangyo Co., Ltd., Mitsui Petrochemical Industries, Ltd.. Active years: 1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kyouzi Muraoka. Retrieved from https://idiyas.com/inventor/kyouzi-muraoka

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 = 5.0

ph-index = 1

Forward Citations = 16(Granted Patents)


Company Filing History:


Years Active: 1980

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1 patent (USPTO):Explore Patents

Title: Kyouzi Muraoka: Innovator in Asphalt Water-Proofing Technology

Introduction

Kyouzi Muraoka is a notable inventor from Yamaguchi, Japan, recognized for his contributions to the field of water-proofing materials. He holds a patent for an innovative asphalt water-proofing material that showcases his expertise in material science and engineering.

Latest Patents

Muraoka's patent, titled "Asphalt Water-Proofing Material," involves a unique composition that includes a core impregnated with petroleum asphalt. The core is constructed from a composite material that features a non-woven fabric layer made of long filaments of synthetic resin arranged randomly, along with a woven or knitted fabric layer. These layers are integrally connected through a needle-punching process, which forces the long filaments of the non-woven fabric into the woven or knitted fabric layer, resulting in a robust and effective water-proofing solution. He has 1 patent to his name.

Career Highlights

Throughout his career, Muraoka has worked with prominent companies, including Mitsui Petrochemical Industries and Mitsuboshi-Sangyo. His experience in these organizations has allowed him to refine his skills and contribute significantly to the development of innovative materials.

Collaborations

Muraoka has collaborated with esteemed colleagues such as Tadayoshi Yoshikawa and Kuninori Mizuta. Their combined expertise has likely fostered advancements in their respective fields.

Conclusion

Kyouzi Muraoka's work in developing asphalt water-proofing materials exemplifies his innovative spirit and dedication to improving material technology. His contributions continue to influence the industry and inspire future advancements.

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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