This inventor holds 5 USPTO granted patents and 4 EPO patents. Top assignees: Chevron Japan Limited, Chevron Oronite Company LLC. Active years: 2003-2011.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2003-2011
Title: Hiroyuki Nagamatsu: Innovator in Lubricating Oil Technology
Introduction
Hiroyuki Nagamatsu is a notable inventor from Gotenba, Japan, known for his significant contributions to lubricating oil compositions. With a total of five patents to his name, his work focuses on improving the performance and efficiency of lubricants used in diesel engines.
Latest Patents
Among his latest patents, Nagamatsu developed a lubricating oil composition specifically designed for trunk piston diesel engines. This innovative formulation includes an overbased sulfurized alkylphenol calcium salt and multiple overbased alkylsalicylic acid calcium salts characterized by varying base ratios and hydrocarbyl groups of different carbon atom lengths. Additionally, the composition incorporates a borated ashless dispersant and zinc dihydrocarbyldithiophosphate to enhance its performance.
Another notable patent encompasses a diesel engine lubricating oil composition tailored for large-bore two-stroke cross-head diesel engines. This formulation is based on a lubricating viscosity base oil with a kinematic viscosity ranging from 22 to 300 mm²/s at 40°C, combined with specific additives to optimize its effectiveness.
Career Highlights
Nagamatsu has worked with several prestigious organizations, notably Chevron Japan Limited and Chevron Oronite Company LLC. His work in these companies has allowed him to refine his skills and contribute to advancements in lubrication technology.
Collaborations
Throughout his career, Nagamatsu has collaborated with many talented individuals, including Shigeru Iwamoto and Hirokazu Fujita. These partnerships have facilitated innovative approaches and enhancements in lubricating oil formulations.
Conclusion
Hiroyuki Nagamatsu’s inventiveness in lubricating oil compositions showcases his ability to address complex engineering challenges. His patents not only reflect his expertise but also contribute significantly to the field of diesel engine technology, offering solutions that enhance performance and efficiency in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile