Location History:
- Wako, JP (1986)
- Saitama, JP (1987 - 1990)
Company Filing History:
2 out of 10,092 
1 out of 182 
Years Active: 1986-1990
Title: Yoshibumi Mishima: Innovator in Diesel Engine Technology
Introduction
Yoshibumi Mishima is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of internal combustion engines, particularly in diesel engine technology. With a total of 3 patents to his name, Mishima's work reflects a commitment to innovation and engineering excellence.
Latest Patents
One of his latest patents is for a direct-injection diesel engine. This engine features a cylinder block with a cylinder that accommodates a sliding piston. It includes a cylinder head connected to the upper surface of the cylinder block, along with a fuel injector nozzle that directly injects fuel into the combustion chamber. The design incorporates first and second independent intake ports in the cylinder head, which introduce intake gas into the combustion chamber. An intake controller is also integrated into the second intake port, allowing for controlled intake gas flow during low-speed operation and a normal state during high-speed operation. The helical formation of the intake ports creates swirls in the intake gases, enhancing combustion efficiency.
Another significant patent involves an aluminum alloy piston designed for internal combustion engines. This piston features two spaced piston pin bosses, each fitted with a steel alloy bushing. A ceramic piston pin is then fitted into these bushings, showcasing Mishima's innovative approach to materials and design in engine components.
Career Highlights
Throughout his career, Yoshibumi Mishima has worked with prominent companies in the automotive industry, including Honda Giken Kogyo Kabushiki Kaisha and Honda Giken Kogyo K.K. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in engine technology.
Collaborations
Mishima has collaborated with notable colleagues such as Shumpei Hasegawa and Noriyuki Kishi. These partnerships have fostered a creative environment that has led to the development of innovative solutions in the field of internal combustion engines.
Conclusion
Yoshibumi Mishima's contributions to diesel engine technology and internal combustion engines highlight his role as a significant inventor in the automotive industry. His patents reflect a deep understanding of engineering principles and a commitment to innovation.