This inventor holds 31 USPTO granted patents and 3 EPO patents. Top assignees: Kobe Steel, Ltd., Kabushiki Kaisha Kobe Seiko Sho, Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.). Active years: 1986-2020.
Location History:
- Kakogawa, JP (1990 - 1992)
- Hyogo, JP (1986 - 2015)
- Takasago, JP (1999 - 2020)
Company Filing History:
19 out of 1,919 
10 out of 1,101 
2 out of 130 Years Active: 1986-2020
Areas of Expertise:
Title: Shoji Yoshimura: Innovator in Compressor Technology
Introduction
Shoji Yoshimura, based in Takasago, Japan, is a prolific inventor with a remarkable portfolio of 31 patents. His contributions to compressor technology, particularly oil-free and screw compressors, showcase his commitment to innovation and efficient energy solutions.
Latest Patents
Among his latest patents is the **oil-free screw compressor**, which features a unique design including a screw rotor, a specialized bearing, and a sophisticated shaft seal device that incorporates both an oil seal and a gas seal. This innovative compressor also includes an atmosphere communication space and an oil return groove designed to optimize performance. The oil seal in this design, known as a viscoseal, includes a spiral groove that enhances durability and functionality.
Another significant patent of his is the **screw compressor**, which integrates a driving machine coupled with a clutch mechanism, a pressure sensor, and a controller. This system intelligently manages the engagement of the clutch based on discharge pressure, thus reducing power losses during low-demand periods. These advancements signify a leap toward more efficient compressor systems that maintain effectiveness while minimizing energy consumption.
Career Highlights
Shoji Yoshimura has built an impressive career, contributing to major companies such as Kobe Steel, Ltd. and Kabushiki Kaisha Kobe Seiko Sho. His work has significantly impacted the engineering landscape, particularly in the field of compressor technology.
Collaborations
Throughout his career, Yoshimura has collaborated with notable colleagues, including Yasushi Amano and Takao Ohama. These partnerships have been essential in driving innovation and refining technologies within his field.
Conclusion
In conclusion, Shoji Yoshimura stands out as an influential figure in compressor technology, with his extensive patent portfolio reflecting decades of research and development. His innovative designs not only enhance performance but also contribute to the sustainability of engineering practices in the industry. His ongoing work continues to inspire future generations of inventors and engineers.