Location History:
- Toyota, JP (2008)
- Anjou, JP (2012)
Company Filing History:
2 out of 36,713 
2 out of 2,064 
2 out of 1,233 Years Active: 2008-2012
Title: Inventor Takayuki Ishikawa: Innovations in Mechanical Engineering
Introduction
Takayuki Ishikawa, an innovative inventor based in Anjou, Japan, has made significant contributions to mechanical engineering through his remarkable inventions. With a total of two patents to his name, he has developed technologies that enhance efficiency and performance in various applications.
Latest Patents
One of Ishikawa's notable patents is the **Coned Disc Spring**. This innovative component is designed to be arranged between a second and third component within a tubular first component, allowing for axial movement. The coned disc spring features a circular dish-shaped body and teeth that fit closely into spline grooves on the inner surface of the first component. It also incorporates a stress relaxation portion, achieved by notching the base of the teeth in a circular arc shape.
Another significant patent of his is the **Cushion Plate**, which is used, for instance, between a piston of a hydraulic servo and an adjacent friction plate in an automatic transmission's frictional engagement element. The cushion plate is engineered to absorb engagement shock through its deflection by the piston’s pressing force. It includes a belleville-spring shaped main body and several pawls that provide spline engagement with the friction plate. Notably, each pawl features a curved recess that extends circumferentially and is strategically located at the base, enhancing its operational efficiency.
Career Highlights
Throughout his career, Takayuki Ishikawa has collaborated with esteemed companies including Toyota Motor Corporation and Aisin AW Co., Ltd. His experience in these renowned organizations has allowed him to refine his skills and contribute to advanced technology in the automotive industry.
Collaborations
In his journey as an inventor, Ishikawa has worked alongside several talented individuals, including Yukitoshi Ogawa and Akihiko Kita. These collaborations have played a crucial role in fostering innovation and advancing their shared projects.
Conclusion
Takayuki Ishikawa's contributions to mechanical engineering, particularly through his patents for the coned disc spring and cushion plate, exemplify the essence of innovation in design and functionality. His work not only enhances existing technologies but also paves the way for future advancements in the field.