Location History:
- Santa Clara, CA (US) (2019 - 2021)
- Tokyo, JP (2017 - 2022)
- Kanagawa, JP (2021 - 2023)
Company Filing History:
11 out of 15 
1 out of 11 
1 out of 70 
Years Active: 2017-2025
Title: Hajime Hoshi: A Pioneer in Solid-State Battery Innovations
Introduction
Hajime Hoshi, an innovative inventor based in Kanagawa, Japan, has made significant contributions in the field of battery technologies. With a remarkable portfolio of 11 patents, his work primarily focuses on solid-state batteries and related technologies that enhance their performance and efficiency.
Latest Patents
Hoshis's latest innovations include a groundbreaking patent for a phase-change electrolyte separator designed for solid-state batteries. This invention features a unique phase-change electrolyte separator layer that incorporates a non-reactive scaffold with open spaces. Within these spaces, a lithium liquid transitions into a lithium gel, utilizing a formulation with polymer and cross-linker additives, as well as a lithium salt and solvent. The innovative design allows for the conversion of the lithium liquid into a lithium gel upon the application of heat, significantly improving battery performance.
Another notable patent from Hoshi involves isostatic press devices and processes specifically for cylindrical solid-state batteries. This invention presents various methods of compressing cylindrical battery cells, where the cells are wrapped in a buffer material. The compression mechanism uniformly distributes pressure to the curved sidewall of the battery cell, ensuring optimal performance and durability.
Career Highlights
Throughout his career, Hajime Hoshi has worked with leading companies in the battery technology sector. He has been associated with Terawatt Technology Inc. and Chongqing Jinkang New Energy Automobile Co., Ltd., where he has contributed to cutting-edge research and development of advanced battery systems. His expertise and innovative spirit have positioned him as a notable figure in the field.
Collaborations
During his career, Hoshi has collaborated with esteemed colleagues, including Yang Yang and Ken Ogata, who have played vital roles in the development and refinement of his innovative projects. These collaborations have led to advancements in the technology that can potentially revolutionize the battery industry.
Conclusion
Hajime Hoshi's contributions to solid-state battery technology exemplify the spirit of innovation and dedication to advancing energy solutions. His inventive patents and collaborative efforts mark significant steps toward the future of sustainable energy, showcasing his prominence as an influential inventor in the field.