Location History:
- Fuchu-cho, JP (2005 - 2010)
- Hiroshima, JP (2010 - 2021)
- Aki-gun, JP (2021 - 2023)
Company Filing History:
39 out of 4,676 
1 out of 19,697 
1 out of 47 Years Active: 2005-2023
Title: **Masahisa Yamakawa: Innovator in Engine Control Systems**
Introduction
Masahisa Yamakawa is a prominent inventor based in Hiroshima, Japan, known for his significant contributions to the field of engine control technology. With a remarkable portfolio of 40 patents, Yamakawa's innovations have greatly influenced automotive engineering, particularly in engine performance and efficiency.
Latest Patents
Yamakawa's recent patents showcase advanced control systems for engines. One of his notable innovations is an engine control system that employs phase variable devices for intake and exhaust valves. This system optimally controls exhaust valve timing and fuel supply based on engine temperatures, enhancing combustion efficiency. Another significant patent is an engine system comprising a controller that adjusts the mass ratio of intake air and fuel based on the engine load, enabling efficient combustion methods tailored to various operational demands.
Career Highlights
Throughout his career, Yamakawa has collaborated with leading automotive corporations, including Mazda Motor Corporation and Denso Corporation. His work in these companies has been pivotal in advancing engine technologies, helping to develop solutions that enhance both performance and environmental sustainability.
Collaborations
Yamakawa has worked alongside talented professionals such as Takashi Youso and Tatsuya Fujikawa. Together, they have contributed to groundbreaking advancements in engine technologies, leveraging their collective expertise to push the boundaries of innovation in the automotive sector.
Conclusion
Masahisa Yamakawa’s extensive career and impressive patent portfolio underscore his role as a key innovator in the field of engine control systems. His inventions not only reflect his technical prowess but also his commitment to improving engine performance, making a lasting impact on the automotive industry.
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.