Location History:
- Yokohama, JP (1993)
- Yokosuka, JP (1995)
Company Filing History:
Years Active: 1993-1995
Title: Innovations of Hisafumi Usuki: Pioneering Patents in Engine Design
Introduction
Hisafumi Usuki, an innovative inventor based in Yokohama, Japan, has made significant contributions to the field of internal combustion engines. With a total of two patents to his name, Usuki has focused on enhancing engine components to improve performance and efficiency. His work showcases a blend of engineering ingenuity and practical design.
Latest Patents
Hisafumi Usuki's latest patents include groundbreaking inventions that address critical challenges in engine design.
1. **Construction of Oil Pan for Internal Combustion Engine**: This patent describes an oil pan specifically designed to accommodate the needs of an internal combustion engine. The design features an outer shell made of metal plate, with at least one inner pan separate from the outer shell. The innovative structure includes both a deep portion and a shallow portion within the bottom of the oil pan, along with a baffle plate positioned over the inner pan. This configuration ensures that oil flow is not impeded and significantly reduces vibration of the oil pan. The deformable wall portions of the inner pan further enhance the durability of the overall structure, reducing the impact on engine components.
2. **Engine Piston**: Usuki's second patent focuses on the unique shape of the skirt located below the piston head of an engine piston. This design features a skirt with a dual elliptical horizontal cross-section and a barrel-shaped vertical cross-section. A T-shaped projection on the lateral surfaces of the skirt ensures proper contact with the inner surface of the engine cylinder while preventing the accumulation of pressure. This innovation effectively reduces frictional resistance and minimizes wear between the piston and cylinder, leading to improved engine performance.
Career Highlights
As an inventor at Nissan Motor Company Limited, Hisafumi Usuki has played a crucial role in advancing internal combustion engine technology. His focused research and development efforts have not only contributed to the company’s innovation strategies but have also set new standards in engine design and efficiency.
Collaborations
Throughout his career, Usuki has collaborated with esteemed colleagues, including Yoichi Uraki and Takao Kubozuka. Working together, this team has harnessed their collective expertise to push the boundaries of engine technology and innovation.
Conclusion
Hisafumi Usuki's contributions to the field of engine design through his patents exemplify his commitment to innovation. His latest inventions demonstrate a strong understanding of both engineering principles and the practical needs of modern internal combustion engines. As he continues his work at Nissan Motor Company Limited, Usuki remains a name to watch in the world of technological advancements in automotive engineering.