Company Filing History:
1 out of 13,745 
1 out of 4 Years Active: 2017
Title: Eiji Kokubu - Innovator in Secondary Battery Technology
Introduction
Eiji Kokubu is an inventor based in Shibukawa-shi, Japan. He is known for his work in the field of secondary battery technology. Although he currently holds no granted patents, his innovative ideas are reflected in his latest patent applications.
Latest Patent Applications
Kokubu's recent patent applications include a secondary battery and a method for producing a secondary battery. The first application describes a secondary battery that features a positive electrode active material layer, primarily composed of an organic compound with a multi-electron system, situated on the surface of a positive electrode current collector. This layer is covered by an ion-conducting thin film that selectively transmits lithium ions. The positive electrode consists of the positive electrode current collector, the positive electrode active material layer, and the ion-conducting thin film.
The second application details a secondary battery that incorporates an electrode active material mainly composed of an organic compound. This compound includes, in its constituent unit, at least one compound selected from a group that consists of a dithione compound with a dithione structure, a dione compound with a dione structure, an organic radical compound containing a stable radical group, and a diamine compound with a diamine structure. Additionally, the secondary battery features an electrolyte that contains a chain sulfone compound.
Conclusion
Eiji Kokubu's contributions to secondary battery technology showcase his innovative spirit and dedication to advancing energy storage solutions. His latest patent applications reflect a commitment to developing new materials and methods that could significantly impact the field.