This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignees: Yamaha Hatsudoki Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha. Active years: 2001-2007.
Company Filing History:
2 out of 4,350 
1 out of 38,774 
Years Active: 2001-2007
Title: The Innovations of Hideyuki Ishiyama
Introduction
Hideyuki Ishiyama is a notable inventor based in Iwata, Japan. He has made significant contributions to the field of internal combustion engines, holding a total of 2 patents. His work focuses on enhancing engine efficiency and performance through innovative designs and technologies.
Latest Patents
Ishiyama's latest patents include an advanced internal combustion engine and a unique engine cooling arrangement. The internal combustion engine patent describes a system where fuel pressure is adjusted, and fuel injection is controlled based on engine operating conditions. This engine features a cylinder, a direct injection injector, a detection unit, and a control unit. The control unit utilizes two maps that detail the fuel injection characteristic coefficient and the invalid injection period relative to the fuel pressure. This innovative design allows for precise calculations of the required fuel injection quantity and period, ensuring optimal fuel delivery.
The engine cooling arrangement patent presents two embodiments of water-cooled internal combustion engines that incorporate an Exhaust Gas Recirculation (EGR) system. These embodiments utilize direct cylinder injection and integrate the EGR system within a housing assembly that also serves as part of the engine's cooling system. This design improves the cooling of the exhaust gas recirculation valve, enhancing its lifespan and performance while reducing heat added to the intake system, thereby improving the engine's volumetric efficiency.
Career Highlights
Throughout his career, Ishiyama has worked with prominent companies in the automotive industry, including Yamaha Motor Co., Ltd. and Toyota Motor Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in engine technology.
Collaborations
Ishiyama has collaborated with notable colleagues such as Yutaka Iwami and Takeo Kondo. Their combined expertise has contributed to the advancement of engine technologies and innovations.
Conclusion
Hideyuki Ishiyama's contributions to the field of internal combustion engines demonstrate his commitment to innovation and efficiency. His patents reflect a deep understanding of engine dynamics and a drive to improve automotive performance.