This inventor holds 10 USPTO granted patents and 1 published patent application and 7 EPO patents. Top assignees: Tokyo Institute of Technology, Toyota Jidosha Kabushiki Kaisha, Doryokuro Kakunenryo Kaihatsu Jigyodan. Active years: 1984-2021.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Yokohama, JP (1984 - 2019)
- Kawasaki, JP (2018 - 2019)
- Tokyo, JP (2021)
Company Filing History:



Years Active: 1984-2021
Title: Masaaki Hirayama: Innovator in Sulfide Solid Electrolytes
Introduction
Masaaki Hirayama is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of solid electrolytes, particularly in the development of sulfide solid electrolyte materials. With a total of 10 patents to his name, Hirayama's work is paving the way for advancements in battery technology.
Latest Patents
Hirayama's latest patents focus on sulfide solid electrolytes that exhibit both lithium ion conductivity and chemical stability. One of his notable inventions is a sulfide solid electrolyte material that does not contain germanium and has a reduced lithium content compared to conventional materials. This innovation features a crystal structure represented by the composition formula (LiSn)(SiSn)(PSi)S, which allows for enhanced performance in battery applications. Another significant patent involves a sulfide solid electrolyte material that demonstrates favorable ion conductivity and resistance to reduction, characterized by a specific peak in X-ray diffraction measurements.
Career Highlights
Throughout his career, Hirayama has worked with esteemed institutions such as the Tokyo Institute of Technology and Toyota Motor Corporation. His research has been instrumental in advancing the understanding and application of solid electrolytes in energy storage systems.
Collaborations
Hirayama has collaborated with notable colleagues, including Ryoji Kanno and Yuki Kato, contributing to the collective knowledge and innovation in the field of solid-state batteries.
Conclusion
Masaaki Hirayama's contributions to the development of sulfide solid electrolytes are significant and impactful. His innovative patents and collaborations highlight his role as a leading inventor in the field of battery technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile