Company Filing History:
Years Active: 2014-2018
Title: Motohiko Koushima: Innovator in Bearing Technology
Introduction
Motohiko Koushima is a prominent inventor based in Inuyama, Japan. He has made significant contributions to the field of bearing technology, particularly in the design and functionality of components used in internal combustion engines. With a total of 7 patents to his name, Koushima continues to push the boundaries of innovation in this critical area of engineering.
Latest Patents
Koushima's latest patents include a half thrust bearing and a bearing device for the crankshaft of an internal combustion engine. The half thrust bearing features a semicircular-ring shape designed to enhance the performance of crankshafts. It includes a back metal layer and a bearing alloy layer with thrust reliefs formed adjacent to both circumferential end surfaces. This design allows for a reduction in wall thickness from the slide surface toward the circumferential end surfaces. Additionally, the thrust relief length extends over a circumferential angle from the circumferential end surface toward the central portion, maintaining a constant width in the radial direction.
Another notable patent is the main bearing for the crankshaft of an internal combustion engine. This invention consists of first and second half bearings that form an axial groove on the inner circumferential surface of a butting portion. Each half bearing includes a main cylinder portion and crush relief portions that extend toward the central portion. The design incorporates a plurality of crush relief grooves that communicate with the axial groove, enhancing the overall efficiency of the bearing system.
Career Highlights
Motohiko Koushima is currently associated with Daido Metal Company Ltd., where he applies his expertise in bearing technology. His work has been instrumental in advancing the performance and reliability of engine components, making significant impacts in the automotive industry.
Collaborations
Koushima has collaborated with notable colleagues such as Yuki Kawashima and Osamu Ishigo. These partnerships have fostered a creative environment that encourages innovation and the development of cutting-edge technologies in the field of engineering.
Conclusion
Motohiko Koushima stands out as a key figure in the realm of bearing technology, with a strong portfolio of patents that reflect his innovative spirit. His contributions continue to shape the future of internal combustion engine design, ensuring enhanced performance and reliability in automotive applications.