Location History:
- Shimizu, JP (1981 - 2005)
- Shizuoka, JP (2006 - 2015)
Company Filing History:
8 out of 42,485 
1 out of 6 
1 out of 48 Years Active: 1981-2015
Title: Masayuki Urashin: Innovator in Screw Compressor Technology
Introduction
Masayuki Urashin is a prominent inventor based in Shizuoka, Japan. He has made significant contributions to the field of screw compressor technology, holding a total of 10 patents. His innovative designs have improved the efficiency and functionality of various mechanical systems.
Latest Patents
One of Urashin's latest patents is a piston-operated bypass valve for a screw compressor. This invention includes a valve hole formed at the discharge side end surface of a discharge casing, which opens to a compression work chamber. The design features a bypass flow path that connects the valve hole and a discharge chamber. Additionally, a valve body is arranged in the valve hole, along with cylinder chambers on the rear surface side of the valve body. A piston moves reciprocally within these chambers, connected to the valve body by a rod. The system also incorporates communication paths for fluid introduction, a pressure discharge path, multiple valve means, and a controller to manage these valves. Another notable patent involves an oil separator and oil reservoir integrated with the main casing of the screw compressor, enhancing its operational efficiency.
Career Highlights
Throughout his career, Masayuki Urashin has worked with notable companies, including Hitachi, Ltd. and Hitachi Air Conditioning Systems Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to significant advancements in compressor technology.
Collaborations
Urashin has collaborated with esteemed colleagues such as Shigekazu Nozawa and Takeshi Hida. Their combined expertise has fostered innovation and development in their respective fields.
Conclusion
Masayuki Urashin's contributions to screw compressor technology exemplify his dedication to innovation and engineering excellence. His patents reflect a commitment to improving mechanical systems, making him a noteworthy figure in the field of inventions.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.