This inventor holds 2 USPTO granted patents. Top assignee: Unisia Jecs Corporation. Active years: 1999.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1999
Title: Hiraku Ohba: Innovator in Direct Injection Technology
Introduction
Hiraku Ohba is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of internal combustion engines, particularly in direct injection technology. With a total of 2 patents, his work focuses on improving fuel efficiency and combustion processes.
Latest Patents
Hiraku Ohba's latest patents include a control apparatus for direct injection spark ignition type internal combustion engines. This invention aims to prevent situations where any of the divided injection amounts falls below a minimum compensation amount for a fuel injection valve during a two-step injection process. The invention divides the total injection amount into two parts: one for homogeneous combustion during the intake stroke and another for stratified combustion during the compression stroke. The control method ensures that the injection amounts are adjusted based on a comparison with the minimum compensation amount, optimizing engine performance.
Another significant patent involves a control method and apparatus for direct injection gasoline engines. This invention addresses the timing of fuel injection in different combustion modes, ensuring that the injection timing is accurately determined based on the fuel quantity being injected. This innovation enhances the efficiency of both uniform charge and stratified charge combustion modes.
Career Highlights
Hiraku Ohba is currently employed at Unisia Jecs Corporation, where he continues to develop advanced technologies in the automotive sector. His expertise in direct injection systems has positioned him as a key player in the industry.
Collaborations
Hiraku has collaborated with notable colleagues such as Yuki Nakajima and Takamasa Ueda. Their combined efforts contribute to the advancement of innovative technologies in engine design and performance.
Conclusion
Hiraku Ohba's contributions to direct injection technology reflect his commitment to enhancing engine efficiency and performance. His patents demonstrate a deep understanding of combustion processes, making him a valuable inventor in the automotive industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile