Company Filing History:
4 out of 8 
1 out of 6 
1 out of 1,102 Years Active: 1992-2013
Title: Hiroshi Yamamoto: Innovator in Battery Technology
Introduction
Hiroshi Yamamoto is a prominent inventor based in Ikeda, Japan. He has made significant contributions to the field of battery technology, particularly in the development of advanced materials for nonaqueous secondary batteries. With a total of five patents to his name, Yamamoto's work has the potential to enhance the performance and efficiency of energy storage systems.
Latest Patents
Yamamoto's latest patents focus on mixed carbon materials and negative electrodes for nonaqueous secondary batteries. One of his inventions describes a negative electrode material that suppresses the decrease in charge acceptance and high-temperature storage properties in electrodes with high capacity and density. This mixed carbon material comprises two types of carbon materials: carbon material A, which has cores of graphite powder with amorphous carbon and/or turbostratic carbon, and carbon material B, which is pure graphite powder. The compressibility of these materials is carefully defined, with specific density ranges for both carbon materials. Another patent emphasizes the suitability of this mixed carbon material for negative electrodes, aiming to provide nonaqueous secondary batteries with low irreversible capacity and high charge acceptance.
Career Highlights
Throughout his career, Hiroshi Yamamoto has worked with notable companies such as Chuo Denki Kogyo Co., Ltd. and Japat Limited. His experience in these organizations has allowed him to refine his expertise in battery technology and material science.
Collaborations
Yamamoto has collaborated with esteemed colleagues, including Tooru Fujiwara and Tatsuo Nagata. Their combined efforts have contributed to advancements in the field of energy storage.
Conclusion
Hiroshi Yamamoto's innovative work in battery technology and his contributions to the development of mixed carbon materials position him as a key figure in the advancement of energy storage solutions. His patents reflect a commitment to improving the performance of nonaqueous secondary batteries, which is crucial for the future of energy technology.