Location History:
- Morioka-shi, Iwate-ken, JP (1986)
- Ikeda, JP (1986)
- Sendai-shi, Miyagi JP (1988)
- Ohbusuma, Showa-machi, Kitakatsushika-gun, Saitama, JP (1989)
- Tokyo, 102, JP (1989)
- Shizuoka, JP (1998)
- Kashiwazaki, JP (2019 - 2022)
Company Filing History:
4 out of 219 
2 out of 21,351 
1 out of 1,623 
Years Active: 1986-2022
Title: The Innovative Contributions of Hiroshi Shimizu
Introduction
Hiroshi Shimizu, a prominent inventor from Kashiwazaki, Japan, has made significant strides in the field of engineering with a total of 12 patented inventions. His work primarily focuses on improving components for internal combustion engines, showcasing his dedication to enhancing motor efficiency and performance.
Latest Patents
Among his latest innovations are two key patents: the oil control ring and the spacer expander. The oil control ring is designed with a pair of side rails, with a spacer expander strategically disposed between them. This spacer expander consists of several sets, each featuring a lug part that contacts the inner circumferential surface of the side rails, and a rail facing part that is adjacent to the lug part. A crucial technical specification is that the width of the lug part must adhere to a condition that ensures functional integrity. Additionally, the spacer for internal combustion engines further exemplifies Shimizu's commitment to advancing engine technology, addressing crucial performance determinants within this vital industry.
Career Highlights
Throughout his career, Shimizu has been affiliated with esteemed organizations, notably Kabushiki Kaisha Riken. His remarkable inventiveness has resulted in numerous patents that enhance engine performance, making significant contributions to automotive engineering.
Collaborations
Throughout his journey as an inventor, Hiroshi Shimizu has collaborated with talented professionals such as Satoshi Koizumi and Sumio Sugawara. Such partnerships illustrate the collaborative spirit that drives innovation, merging various expertise to foster advanced technological developments.
Conclusion
Hiroshi Shimizu stands as a notable figure in contemporary invention, particularly within the realm of combustion engine technology. With 12 patents to his name, his innovative designs like the oil control ring and spacer expander not only reflect his inventive spirit but also contribute substantially to advancements in engine efficiency and performance. As the industry evolves, Shimizu's legacy of innovation is sure to influence future developments.