Company Filing History:
5 out of 376 
1 out of 1,838 Years Active: 1982-1990
Title: Ichiro Yanagawa: Innovator in Clutch and Brake Systems
Introduction
Ichiro Yanagawa is a notable inventor based in Higashimatsuyama, Japan. He has made significant contributions to the automotive industry, particularly in the development of clutch and brake systems. With a total of 6 patents to his name, Yanagawa's innovations have improved vehicle performance and safety.
Latest Patents
One of Yanagawa's latest patents is the Clutch Booster. This invention relates to an improved clutch booster equipped with a power piston and a control valve unit. The clutch booster is designed to be operatively connected to a clutch pedal by mechanical link means. It employs at least one pivot lever as an essential element of the link means. The pivot lever is pivotally connected to an output rod, allowing manual force applied to the clutch pedal to be relayed in the direction of the output rod. This design enables manual clutch operation even in a non-servo operation state, eliminating the need for complicated mechanical installations such as a master cylinder and fluid pipings.
Another significant patent is the Exhaust Brake System. This system incorporates a slide valve with a decreasing returning or opening effort without increasing the working or closing effort of its valve elements. The brake system includes a first valve piston connected to a closing slide valve, which moves in reciprocating motion inside a cylinder under operating pressure. Additionally, a second valve piston is driven in rectilinear motion under the same operating pressure, working upon a resilient member to be deformed. When the slide valve opens, the restoring effort of the resilient member is effectively relayed to the first valve piston, assisting in the returning motion of the valve piston.
Career Highlights
Throughout his career, Ichiro Yanagawa has worked with prominent companies in the automotive sector, including Jidosha Kiki Co., Ltd. and Toyota Motor Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in vehicle technology.
Collaborations
Yanagawa has collaborated with notable individuals in the field, including Yuzi Wachi and Yuji Wachi. These partnerships have fostered a creative environment that has led to the development of innovative solutions in automotive engineering.
Conclusion
Ichiro Yanagawa's contributions to clutch and brake systems have made a lasting impact on the automotive industry. His innovative patents reflect his dedication
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.