This inventor holds 10 USPTO granted patents and 1 published patent application, plus 1 CIPO patent and 10 EPO patents. Top assignees: Yanmar Co., Ltd., Yanmar Power Technology Co., Inc., Nagoya Institute of Technology. Active years: 2016-2022.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
8 out of 651 
2 out of 213 
1 out of 121 
Years Active: 2016-2022
Title: Ryoichi Hagiwara: Innovator in Engine Technology
Introduction
Ryoichi Hagiwara is a prominent inventor based in Osaka, Japan, who has made significant contributions to the field of engine technology. With a total of 10 patents to his name, Hagiwara has focused on creating innovative solutions that enhance the performance and efficiency of engine devices.
Latest Patents
Among his latest inventions is an advanced engine device that features an intake manifold designed to deliver air into a cylinder and an exhaust manifold for expelling exhaust gas from the cylinder. This device incorporates a gas injector that mixes gaseous fuel with air from the intake manifold and utilizes a main fuel injection valve to inject liquid fuel for combustion. A notable aspect of Hagiwara's design is the controlled transition between gas mode and diesel mode; during this switch, the timing for the initiation of liquid fuel supply is strategically delayed in relation to the cessation of gaseous fuel supply, optimizing the switching process.
Career Highlights
Hagiwara has worked with reputable companies, notably Yanmar Co., Ltd. and Yanmar Power Technology Co., Inc., where he has contributed his expertise in developing cutting-edge engine technologies. His commitment to innovation has been instrumental in advancing the industry standards for engine performance.
Collaborations
Throughout his career, Hagiwara has collaborated with notable colleagues including Osamu Yamagishi and Masayoshi Doi. These partnerships have fostered an environment of shared ideas and have led to the successful development of several impactful inventions.
Conclusion
Ryoichi Hagiwara stands out as a leading inventor in the realm of engine technology. His dedication to creating innovative solutions is reflected in his extensive portfolio of patents and collaborations with distinguished professionals in the industry. As he continues to advance engine technologies, Hagiwara's contributions will undoubtedly leave a lasting impact on the field.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile