Location History:
- Yokohama, JP (2008)
- Kawasaki, JP (2011)
- Kanagawa, JP (2018 - 2021)
Company Filing History:
4 out of 13,408 
1 out of 940 
Years Active: 2008-2021
Title: Satoru Ookuma: Innovator in Internal Combustion Engine Technology
Introduction
Satoru Ookuma is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of internal combustion engine technology, holding a total of 4 patents. His innovative designs focus on enhancing engine performance and efficiency.
Latest Patents
One of his latest patents is for a variable-compression-ratio internal combustion engine. This invention features an upper oil pan assembly attached to the lower portion of a cylinder block. An opening is formed on a side wall of the upper oil pan assembly. The variable compression ratio mechanism changes the top dead center position of a piston in accordance with the rotational position of a control shaft, thereby altering the compression ratio. The control shaft is rotationally driven by an actuator, with at least a portion of the actuator fixed to a main bearing cap, positioned on the outer side of the upper oil pan assembly.
Another significant patent is related to a bearing structure. This structure includes a crankshaft rotatably supported by a crankshaft bearing part, formed of a cylinder block of an internal combustion engine and a first bearing cap. The bearing metal has a planar portion for rotatably supporting the crankshaft, along with an oil groove formed to extend circumferentially in the inner peripheral surface of the bearing metal. This design enhances the lubrication and performance of the engine components.
Career Highlights
Satoru Ookuma has worked with prominent companies in the automotive industry, including Nissan Motor Company Limited and Renault S.a.s. His experience in these organizations has allowed him to develop and refine his innovative ideas in engine technology.
Collaborations
Throughout his career, Satoru has collaborated with talented individuals such as Kazuo Muraki and Hiroki Ichihara. These partnerships have contributed to the advancement of his projects and the successful development of his patents.
Conclusion
Satoru Ookuma is a distinguished inventor whose work in internal combustion engine technology has led to several important patents. His innovative designs continue to influence the automotive industry and improve engine performance.