Hitoshi Kumagai

Title: Hitoshi Kumagai: Innovator in Electricity Storage Technology

Introduction

Hitoshi Kumagai is a notable inventor based in Nagakute, Japan. He has made significant contributions to the field of electricity storage technology, holding a total of 2 patents. His work focuses on innovative materials and methods that enhance the efficiency and functionality of energy storage devices.

Latest Patents

Kumagai's latest patents include a viologen compound and a method for producing the same, as well as a negative electrode active material and an electricity storage device. The viologen compound is a crystalline structure that features a heterocyclic moiety, where a carboxylate of an alkali metal is directly or indirectly bound to both ends of a basic skeleton containing 4,4'-bipyridinium. This compound serves as a negative electrode active material in electricity storage devices, which consist of a negative electrode, a positive electrode capable of exchanging anions, and an ion-conducting medium.

Another significant patent involves an organic polymer porous body. This body is characterized by a first cyclic structure with a 6-membered or 5-membered ring and a second cyclic structure with a 6-membered ring. The two structures are linked by a carbon-carbon triple bond, and at least one of them contains a nitrogen atom, enhancing its properties for various applications.

Career Highlights

Hitoshi Kumagai is associated with Kabushiki Kaisha Toyota Chuo Kenkyusho, where he continues to innovate in the field of energy storage. His work has been instrumental in advancing the technology used in modern electricity storage solutions.

Collaborations

Kumagai has collaborated with notable coworkers such as Satoru Fujita and Satoru Yamamoto. Their combined expertise contributes to the innovative projects at their company.

Conclusion

Hitoshi Kumagai is a prominent figure in the realm of electricity storage technology, with a focus on developing advanced materials and methods. His contributions are paving the way for more efficient energy storage solutions in the future.