Location History:
- Kofu, JP (2021 - 2023)
- Yamanashi, JP (2019 - 2024)
Company Filing History:
11 out of 93 
2 out of 817 
2 out of 4 
Years Active: 2019-2025
Title: Katsuyoshi Kakinuma: Innovating the Future of Fuel Cells
Introduction
Katsuyoshi Kakinuma, an accomplished inventor based in Yamanashi, Japan, has made significant contributions to the field of electrochemical technologies. With a remarkable portfolio of 11 patents, his innovative work focuses on improving the efficiency and conductivity of metal catalysts and fuel cells.
Latest Patents
Kakinuma's latest patents include advancements in supported metal catalysts and electrochemical cells. His patented support and metal catalyst feature enhanced electric conductivity through a unique structure that involves a support powder made of aggregate support fine particles. These fine particles are intricately designed with chained portions formed by fusion-bonded crystallites, and they are complemented with a doped metal oxide. Specifically, the atomic ratio of titanium to total titanium and tin ranges from 0.30 to 0.80.
Additionally, his carrier metal catalyst patent highlights the suppression of internal resistance in fuel cells. This catalyst involves a carrier powder made from aggregates of finely structured titanium oxide particles, doped with elements of differing valence from titanium. Key metrics for these innovations include a mean particle size of metal fine particles between 3 to 10 nm and a measurable cell resistance under standard conditions of 0.090 Ωcm or lower.
Career Highlights
Kakinuma has garnered valuable experience working with notable institutions such as the University of Yamanashi and Mitsui Mining & Smelting Company, Ltd. His expertise and dedication to the field of electrochemistry have played a vital role in pushing boundaries and exploring new possibilities in energy technologies.
Collaborations
Throughout his career, Katsuyoshi Kakinuma has collaborated with esteemed colleagues, including Makoto Uchida and Akihiro Iiyama. These partnerships have fostered a dynamic environment that has been conducive to innovation and excellence in research.
Conclusion
Katsuyoshi Kakinuma stands out as a pivotal figure in the realm of fuel cell technology and catalysts. His 11 patents reflect his commitment to innovation and the pursuit of improved energy solutions. As the industry continues to evolve, Kakinuma's contributions will undoubtedly influence future developments and inspire the next generation of inventors.