Location History:
- Susono, JP (1990 - 2005)
- Yokohama, JP (2006 - 2008)
Company Filing History:
5 out of 36,713 
2 out of 19,748 
Years Active: 1990-2008
Title: Akira Hashizume: Innovator in Internal Combustion Engine Technology
Introduction
Akira Hashizume is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of internal combustion engines, holding a total of 5 patents. His work focuses on improving the efficiency and performance of multicylinder engines.
Latest Patents
Hashizume's latest patents include innovative technologies for internal combustion engines with multiple cylinders. One of his patents describes a control apparatus and method that optimizes combustion conditions based on the intake air amount in each cylinder. This system sets a reference cylinder with the smallest intake air amount and adjusts the fuel injection accordingly to achieve a stoichiometric air-fuel ratio. Additionally, he has developed a control device that manages valve operating characteristics to enhance engine performance by estimating intake differences among cylinders.
Career Highlights
Throughout his career, Akira Hashizume has worked with prominent companies in the automotive industry, including Toyota Motor Corporation and Denso Corporation. His experience in these organizations has allowed him to refine his expertise in engine technology and contribute to advancements in the field.
Collaborations
Hashizume has collaborated with notable colleagues, including Keizo Hiraku and Hiroshi Kanai. These partnerships have fostered innovation and the development of cutting-edge technologies in internal combustion engines.
Conclusion
Akira Hashizume's contributions to internal combustion engine technology demonstrate his commitment to innovation and efficiency. His patents reflect a deep understanding of engine dynamics and a drive to enhance performance in multicylinder engines.