This inventor holds 49 USPTO granted patents and 8 published patent applications and 4 EPO patents, primarily in Power Steering Technology. Top assignees: Kabushiki Kaisha Toshiba, Hitachi Astemo Ltd., Fujitsu Corporation. Active years: 1995-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Higashine, JP (1998 - 2001)
- Kanagawa-ken, JP (2002 - 2005)
- Kawasaki, JP (1995 - 2012)
- Kanagawa, JP (2013 - 2023)
- Yokohama, JP (2013 - 2023)
- Hitachinaka, JP (2024)
Company Filing History:
12 out of 53,315 
11 out of 1,521 
9 out of 39,381 
Years Active: 1995-2026
Areas of Expertise:
Title: Innovations by Osamu Yoshida: Steering Device Patents
Introduction
Osamu Yoshida, an accomplished inventor based in Yokohama, Japan, has made significant contributions to the field of automotive technology, specifically in steering devices. With a remarkable portfolio of 45 patents, he continues to innovate and improve the design and functionality of steering mechanisms used in vehicles.
Latest Patents
Among Yoshida's latest inventions is a revolutionary method for manufacturing a steering device. This method involves a cylindrical part of a rack retainer accommodation part and an adjust screw, which are caulked together in such a manner that the plastic deformation region created by the caulking spans both the female screw part of the cylindrical part and the male screw part of the adjust screw. The design allows the adjust screw to be loosened to a specified point, ensuring that the force exerted by the rack retainer on the rack bar remains within a predetermined range. This innovation effectively suppresses any fluctuations in the urging force exerted by the rack retainer, which are typically caused by caulking work interruptions.
Another notable invention by Yoshida details a steering device that includes a steering shaft engineered to receive rotational force. The device features a rack bar engaged with the steering shaft and is housed within a metal rack housing. This housing comprises a tubular section that allows for the movement of the rack bar and incorporates a first inclination section designed to interact with the rack bar in response to external distortions. The thoughtful design of this steering device embodies Yoshida’s commitment to enhancing safety and performance in automotive engineering.
Career Highlights
Osamu Yoshida has demonstrated excellence in his career, working with prominent companies such as Toshiba Corporation and Hitachi Astemo Ltd. His experience in these leading organizations has been instrumental in shaping his innovative designs and approaches to automotive technology.
Collaborations
Throughout his career, Yoshida has collaborated with several noteworthy individuals, including fellow inventors Tatsuyoshi Maruyama and Kiyotaka Shirakubo. These collaborations have paved the way for enriching exchanges of ideas and have contributed significantly to the advancements made within his patent portfolio.
Conclusion
Osamu Yoshida stands out as a leading inventor in the automotive sector, particularly noted for his advancements in steering device technology. With a total of 45 patents to his name, his latest innovations highlight his dedication to improving vehicle safety and performance. Through his collaborative efforts and extensive experience, Yoshida continues to be a driving force in the realm of engineering innovations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile