Company Filing History:
10 out of 42,485 
4 out of 248 
3 out of 13,395 
Years Active: 1985-2007
Title: Hiromasa Kubo: Innovator in Fuel Injection Technology
Introduction
Hiromasa Kubo, based in Yokohama, Japan, is a prominent inventor with a remarkable portfolio that includes 20 patents. His work primarily focuses on advancements in fuel injection technologies, showcasing his innovative spirit and dedication to improving internal combustion engines.
Latest Patents
Among his latest patents, two stand out for their ingenuity: the Fuel Injection Valve with Restriction Wall and the Internal Combustion Engine Equipped Therewith. These inventions utilize a swirl-type fuel injection valve capable of forming both concentrated and thin spray areas, which are adjusted to conform to the engine's geometric shape and the fuel injection valve's mounting position. This precise design aims to reduce fuel consumption and manage unburnt components in exhaust gas effectively. Notably, the fuel injection valve features a step on the injection hole opening, creating multiple edge transition portions. This results in a unique spray pattern that enhances the engine's efficiency.
Furthermore, another significant innovation involves the outlet portion of the injection hole. By modifying the wall structure to relieve restrictions on spray flow, the design generates a deflected spray with varying densities that improve the ignition properties of the internal combustion engine while minimizing unburnt gas emissions.
Career Highlights
Throughout his career, Hiromasa Kubo has made substantial contributions to the automotive industry, particularly during his tenure at Hitachi, Ltd. His inventive efforts have been recognized with numerous patents, reflecting his deep understanding of fuel injection mechanisms and engine performance.
Collaborations
Hiromasa Kubo has collaborated with notable peers in the industry, including Yoshio Okamoto and Makoto Yamakado. These partnerships have contributed to a pooling of ideas and technical expertise, enhancing the innovation process behind his groundbreaking patents.
Conclusion
With a prolific output and a focus on enhancing fuel efficiency and reducing emissions, Hiromasa Kubo stands as a significant figure in the engineering landscape. His inventive work not only illustrates the potential for technological advancements in internal combustion engines but also highlights the importance of collaboration in driving innovation.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.