Company Filing History:
19 out of 2,064 
2 out of 36,713 
1 out of 54 
Years Active: 2011-2021
Title: **Masamichi Yamaguchi: Innovator in Patents and Engineering**
Introduction
Masamichi Yamaguchi, located in Anjo, Japan, is a noteworthy inventor with an impressive portfolio of 19 patents. His innovative contributions primarily focus on engineering solutions that enhance product functionality and efficiency.
Latest Patents
Among his latest inventions, Yamaguchi has developed a breather device that effectively communicates the inside of a case with the outside in a vertical direction. This device features a cylindrical body with a hollow vertical portion, a stopper inserted within, and a blocking body that obstructs a communicating hole located at the bottom of the cylindrical body. When internal pressure exceeds a predetermined threshold, the blocking body moves upward, allowing for a flow of communication.
Additionally, Yamaguchi has designed an electromagnetic valve and transmission-use fuel pressure control device. This innovation includes an electromagnetic valve main body connected to an accumulator that regulates oil pressure in a transmission system. The valve effectively seals against oil leakage and incorporates a pressure regulation mechanism that releases internal pressure when it rises beyond a set limit, ensuring optimal performance in transmission systems.
Career Highlights
Yamaguchi's professional journey has seen him contribute significantly to prominent companies such as Aisin AW Co., Ltd. and Toyota Motor Corporation. His expertise and dedication to innovation have further solidified his reputation in the engineering sector.
Collaborations
Throughout his career, Masamichi Yamaguchi has collaborated with esteemed colleagues, including Kenichi Tsuchida and Tetsuya Shimizu. These partnerships have fostered a creative environment conducive to cutting-edge technological advancements.
Conclusion
Masamichi Yamaguchi stands out as a distinguished inventor whose 19 patents reflect his commitment to innovation in engineering. His latest inventions exemplify his ability to tackle complex challenges in the industry, reinforcing his status as a key figure in the realm of patents and technological development.