Company Filing History:
1 out of 36,713 
1 out of 2 
1 out of 2,004 Years Active: 1987-1990
Title: Innovations by Yonetsugu Umemoto
Introduction
Yonetsugu Umemoto is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of automotive technology, holding a total of 2 patents. His work focuses on enhancing vehicle safety and functionality through innovative designs.
Latest Patents
One of Umemoto's latest patents is a steering locking apparatus. This apparatus is designed to prevent the rotation of a key rotor from an unlocking position to a locked position by utilizing a restricting lever. The rotation of the key rotor can be allowed by pressing a button, which is engaged by an electromagnetic solenoid under specific conditions. This design ensures that no load is exerted on the plunger, enhancing the reliability of the locking mechanism.
Another significant patent is for a ball joint. This invention features a socket, a ball received by the socket, and a stud extending outwardly from the ball. The ball seat member includes a soft portion that covers part of the ball, which is compressed by a cap. This innovative design allows for effective movement while maintaining structural integrity.
Career Highlights
Throughout his career, Umemoto has worked with prominent companies, including Toyota Motor Corporation and Odai Tekko Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in automotive technology.
Collaborations
Umemoto has collaborated with talented individuals such as Hiroshi Shirasawa and Muneya Ogo. These partnerships have contributed to the successful development of his inventions.
Conclusion
Yonetsugu Umemoto's contributions to automotive technology through his patents demonstrate his commitment to innovation and safety in vehicle design. His work continues to influence the industry and inspire future advancements.