Location History:
- Anjo, JP (1985 - 1988)
- Toyota, JP (1988)
- Toyoake, JP (1983 - 1993)
- Aichi, JP (1990 - 1993)
Company Filing History:
19 out of 132 
18 out of 36,499 
16 out of 54 
Years Active: 1983-1993
Title: Innovations of Yoichi Hayakawa: Pioneer in Hydraulic Actuators
Introduction
Yoichi Hayakawa, a prolific inventor based in Toyoake, Japan, has made significant contributions to the field of engineering and automotive technology. With an impressive portfolio of 46 patents, Hayakawa has dedicated his career to developing innovative solutions, particularly in the area of hydraulic actuators used in automatic transmissions.
Latest Patents
Hayakawa's latest innovations include a pioneering design for a hydraulic actuator in automatic transmissions. This double-acting hydraulic actuator features a two-layered structure that consists of first and second frictional engagement element hydraulic actuators. The first hydraulic actuator is equipped with a drum member and a first piston that fits hermetically and slides within the drum member. The second hydraulic actuator is ingeniously formed from the interior of the first piston, incorporating a second piston that is also fitted hermetically and slides within the first piston. Both pistons are designed to be urged toward their disengaged positions by a common return spring, with an additional spring provided to independently urge the second piston against the return spring's force. Another notable invention is the nested piston hydraulic operator specifically designed for automatic transmissions.
Career Highlights
Throughout his career, Hayakawa has worked with prestigious companies such as Aisin-Warner Kabushiki Kaisha and Toyota Motor Corporation, where he has developed numerous advanced technologies that have been instrumental in the evolution of vehicle performance and efficiency.
Collaborations
Hayakawa has collaborated with esteemed colleagues, including Yoshiharu Harada and Masao Kawai, contributing to various projects that have pushed the boundaries of automotive technologies and improved automatic transmission systems.
Conclusion
In conclusion, Yoichi Hayakawa stands out as an influential inventor whose innovations in hydraulic actuators have significantly impacted the automotive industry. With a rich catalogue of patents and a robust career history, Hayakawa continues to inspire future generations of engineers and inventors in the field of automotive innovation.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.