Location History:
- Aichi, JP (1987 - 1991)
- Toyota, JP (1987 - 2015)
Company Filing History:
5 out of 36,713 
1 out of 2 Years Active: 1987-2015
Title: Kimimasa Murayama: Innovator in Motor Technology
Introduction
Kimimasa Murayama is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of motor technology, holding a total of 5 patents. His innovative approaches have led to advancements in manufacturing processes and machinery.
Latest Patents
One of his latest patents is a method for producing a motor rotor. This method involves a lamination stack made up of stacked thin steel sheets, each formed with a through hole. The lamination stack retains a shaft bore formed of the through holes aligned with one another. A pair of jigs holds the rotor core in the thickness direction, allowing a shaft to be inserted and joined to the lamination stack by shrink fitting. Each jig is designed with specific features to ensure precise positioning and support during the manufacturing process.
Another significant patent is for a thread rolling apparatus. This apparatus features thread rolling dies mounted on sliding mechanisms that are vertically driven by actuators. A support is positioned between the dies to rotatably support a workpiece. The design allows for the formation of different screws with equal pitches and varying nominal diameters by adjusting the distance between the thread rolling dies.
Career Highlights
Throughout his career, Kimimasa Murayama has worked with prominent companies, including Toyota Motor Corporation and OSG Corporation. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.
Collaborations
He has collaborated with notable coworkers such as Shoji Ikawa and Shinobu Kaneko. Their combined expertise has fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Kimimasa Murayama's contributions to motor technology and manufacturing processes highlight his role as an influential inventor. His patents reflect a commitment to innovation and excellence in engineering.