Location History:
- Kanagawa-ken, JP (2005 - 2006)
- Yokosuka, JP (1989 - 2017)
- Tokosuka, JP (2018)
- Kanagawa, JP (2000 - 2024)
Company Filing History:
37 out of 13,408 
4 out of 940 
Years Active: 1989-2024
Title: Hirofumi Tsuchida: Innovator in Internal Combustion Engine Technology
Introduction: Hirofumi Tsuchida, based in Yokosuka, Japan, is a prominent inventor known for his significant contributions to the field of internal combustion engine technology, holding an impressive total of 37 patents. His innovative approach to engine control systems has set new standards in efficiency and performance.
Latest Patents: Among Tsuchida's latest inventions are groundbreaking patents focused on control methods and devices for internal combustion engines. One notable patent involves a control mechanism for spark-ignition engines equipped with turbochargers and exhaust gas recirculation systems. This method allows the engine to achieve a stoichiometric air-fuel ratio even under high-load conditions, enhancing maximum output while ensuring efficiency. Another significant patent describes an EGR control system that optimizes exhaust gas recirculation by adjusting gas amounts through differential pressure, based on exhaust gas pressure inputs. Through these innovations, Tsuchida has addressed key challenges faced in high-performance automotive engineering.
Career Highlights: Hirofumi Tsuchida’s career includes noteworthy contributions while working with major automotive companies, including Nissan Motor Company and Renault S.a.s. His tenure at these organizations has allowed him to play a pivotal role in developing technologies that enhance engine performance and reduced emissions.
Collaborations: Throughout his career, Tsuchida has collaborated with fellow innovators such as Koji Hiraya and Akira Tayama. These partnerships have fostered a creative environment that has led to innovative solutions and advancements in automotive engineering.
Conclusion: Hirofumi Tsuchida stands out as a key figure in the realm of internal combustion engine innovation. His extensive patent portfolio, coupled with his collaborative efforts and significant contributions to esteemed automotive companies, evidences his enduring impact on the industry. As the automotive landscape continues to evolve, the advancements made by inventors like Tsuchida will play a crucial role in shaping the future of engine technology.