Location History:
- Suzuka, JP (2006)
- Kariya, JP (2007)
Company Filing History:
Years Active: 2006-2007
Title: Hirofumi Muranaka: Innovator in High-Pressure Piping and Spark Plug Technology
Introduction
Hirofumi Muranaka is a notable inventor based in Kariya, Japan. He has made significant contributions to the fields of high-pressure piping and spark plug technology. With a total of two patents to his name, Muranaka's work showcases his innovative approach to engineering challenges.
Latest Patents
Muranaka's latest patents include a method for manufacturing high-pressure piping parts and a method for manufacturing center electrodes for spark plugs. The high-pressure piping part features a body structure forged in a closed space, designed to improve resistance to internal pressure. The structure includes a main body portion formed by forward extrusion and side arm portions formed by side extrusion, ensuring that stress is applied perpendicularly to the fiber flows within the body. This design enhances the pressure resistance of the body structure, making it suitable for injectors.
The second patent focuses on the manufacturing process of a center electrode for spark plugs. In this method, a core member is press-fitted into a metal cup, followed by a cold-forging process that creates a small-diameter portion at the closed end of the cup. This process ensures that the small-diameter portion remains free from deformation, resulting in excellent shape accuracy. The pre-cold-forging press-fitting allows for a stronger adhesion between the core member and the metal cup, enhancing thermal conductivity.
Career Highlights
Hirofumi Muranaka is currently employed at Denso Corporation, a leading global automotive components manufacturer. His work at Denso has allowed him to apply his innovative ideas in practical applications, contributing to advancements in automotive technology.
Collaborations
Muranaka has collaborated with notable coworkers, including Kazuhiko Tanaka and Akihiro Endou. Their teamwork has fostered an environment of innovation and creativity, leading to the development of cutting-edge technologies.
Conclusion
Hirofumi Muranaka's contributions to high-pressure piping and spark plug technology highlight his role as an influential inventor. His patents reflect a commitment to improving engineering processes and enhancing product performance. Muranaka's work continues to impact the automotive industry positively.