Company Filing History:
13 out of 19,697 
2 out of 1,600 Years Active: 2004-2020
Title: Innovations of Yoshinori Yamashita
Introduction
Yoshinori Yamashita is a notable inventor based in Kariya, Japan. He has made significant contributions to the field of fuel injection technology, holding a total of 13 patents. His work has been instrumental in advancing the efficiency and functionality of fuel systems.
Latest Patents
Yamashita's latest patents include a fuel injection valve designed to enhance fuel delivery. This valve features a housing with an injection hole and a valve seat surface that tapers toward the downstream side. The valve component is housed within the valve housing and can be coaxially separated from or seated on the valve seat surface. An elastic component biases the valve component toward the valve seat surface. The design includes an inner convex surface with a predetermined curvature radius and an outer convex surface that is continuously provided to the outer peripheral side of the inner convex surface. This innovative design allows for effective sealing and operation.
Another significant patent involves a pressure relief valve and a high-pressure pump equipped with such a valve. The valve member consists of a shaft portion, a pressure receiving portion, and a guide portion, allowing for axial movement within a fuel return passage. When the forward end of the shaft portion is seated on a valve seat, the fuel return passage is closed. Conversely, when the shaft portion is separated from the valve seat, the passage opens, facilitating fuel flow.
Career Highlights
Yamashita has worked with prominent companies in the automotive and engineering sectors, including Denso Corporation and Nippon Soken, Inc. His experience in these organizations has contributed to his expertise in fuel injection systems and related technologies.
Collaborations
Throughout his career, Yamashita has collaborated with esteemed colleagues such as Hidekazu Oomura and Yukio Tomiita. These partnerships have fostered innovation and the development of advanced technologies in the field.
Conclusion
Yoshinori Yamashita's contributions to fuel injection technology through his patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence advancements in automotive engineering and fuel efficiency.
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.