This inventor holds 11 USPTO granted patents and 4 published patent applications and 7 EPO patents. Top assignees: Nippon Oil Corporation, Nippon Petroleum Refining Company, Limited, Jx Nippon Oil Energy Corporation. Active years: 2011-2018.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Kawasaki, JP (2011 - 2014)
- Tokyo, JP (2014 - 2018)
Company Filing History:
6 out of 188 
4 out of 20 
3 out of 331 Years Active: 2011-2018
Title: Masaki Fujii: Innovator in Battery Technology
Introduction
Masaki Fujii is a prominent inventor based in Kawasaki, Japan, known for his significant contributions to battery technology. With a total of 11 patents to his name, Fujii has focused on developing advanced materials for lithium-ion batteries and electric double-layer capacitors. His work has the potential to enhance the performance and efficiency of energy storage systems.
Latest Patents
Fujii's latest patents include an artificial graphite material for the negative electrode of lithium-ion secondary batteries. This invention addresses the challenges of capacity deterioration during charging and discharging cycles while reducing internal resistance and improving output characteristics. The artificial graphite material features a crystallite size in the c-axis direction ranging from 5 to 25 nm, with specific intensity ratios that optimize its performance.
Another notable patent involves activated carbon for electric double-layer capacitor electrodes. This activated carbon is designed to improve the rate and float characteristics of the capacitor electrodes. The manufacturing method includes grinding a carbon raw material to achieve a specific particle diameter, mixing it with an alkali activator, and subjecting it to an activation treatment under controlled atmospheres.
Career Highlights
Fujii has worked with notable companies such as Nippon Oil Corporation and Nippon Petroleum Refining Company, Limited. His experience in these organizations has contributed to his expertise in materials science and energy storage technologies.
Collaborations
Fujii has collaborated with esteemed colleagues, including Takashi Oyama and Tamotsu Tano. These partnerships have fostered innovation and the development of cutting-edge technologies in the field of energy storage.
Conclusion
Masaki Fujii's contributions to battery technology and materials science have positioned him as a key figure in the industry. His innovative patents and collaborations continue to influence advancements in energy storage solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile