Takehara, Japan

Kyohei Yamaguchi

This inventor holds 7 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignees: Mitsui Minings & Melting Co., Ltd., Mitsui Kinzoku Company, Limited. Active years: 2016-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kyohei Yamaguchi. Retrieved from https://idiyas.com/inventor/kyohei-yamaguchi-8w1buolc

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

Calculating rank
USPTO Granted Patents = 7 

% Patents Active = 85.7


Average Co-Inventor Count = 3.8

ph-index = 1

Forward Citations = 10(Granted Patents)


Company Filing History:


Years Active: 2016-2026

Loading Chart...
Loading Chart...
7 patents (USPTO):Explore Patents

Title: Kyohei Yamaguchi: Innovating Energy Storage Solutions

Introduction

Kyohei Yamaguchi is a notable inventor based in Takehara, Japan, recognized for his contributions to energy storage technologies. With a portfolio of six patents, he is making significant strides in the fields of hydrogen storage and lithium-manganese-based compounds, which are critical for the advancement of sustainable energy solutions.

Latest Patents

Yamaguchi's recent innovations include a hydrogen storage alloy that boasts enhanced properties for mechanical pulverization and hydrogen absorption and desorption. This alloy features a unique crystal structure, specifically a CaCu-type with an A site made of rare earth elements like Lanthanum, while the B site is devoid of Cobalt and contains Nickel, Aluminum, and Manganese in specific molar ratios.

Another significant invention is a spinel-type lithium-manganese-containing complex oxide designed to improve output characteristics and charge-discharge cycle performance. This material supports an operating potential of over 4.5 V against a lithium reference and is structured to minimize gas generation during operation. The specifications of the particle size and distribution enhance its effectiveness in energy applications.

Career Highlights

Yamaguchi is currently employed at Mitsui Mining & Smelting Company, Ltd., where he applies his expertise to innovate and develop advanced materials for energy storage applications. His patents reflect a focus on enhancing performance in energy systems, contributing to the growing field of renewable energy technology.

Collaborations

Throughout his career, Yamaguchi has collaborated with talented professionals such as Shinya Kagei and Tetsuya Mitsumoto. These partnerships foster the exchange of ideas and accelerate the development of cutting-edge technologies that benefit the industry as a whole.

Conclusion

Kyohei Yamaguchi exemplifies the innovative spirit that drives advancements in energy storage solutions. With his groundbreaking patents and collaborative efforts, he is poised to make lasting contributions to the field, significantly impacting the future of sustainable energy technology.

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]
Loading…