Company Filing History:
11 out of 1,627 
2 out of 15 
1 out of 772 Years Active: 1987-1996
Title: **Innovative Contributions of Yoshimasa Nagayoshi in Automotive Engineering**
Introduction
Yoshimasa Nagayoshi, a notable inventor hailing from Kyoto, Japan, has made significant strides in the field of automotive engineering. With a portfolio of 11 patents, he has contributed innovative solutions that enhance vehicle performance and efficiency. His work is characterized by a focus on clutch engagement systems and engine control methods.
Latest Patents
Among Yoshimasa's latest patents, the "Lockup clutch released then re-engaged during deceleration control method" stands out. This method provides a comprehensive approach for controlling the engagement state of a damper clutch in conjunction with a vehicle engine that features a fuel cut mechanism. The process begins by detecting deceleration in the engine, followed by managing the clutch's engagement state to maintain optimal performance. The damper clutch is initially released for a set amount of time before being engaged, allowing for precise control of the rotational speed difference between the input and output members.
Another significant patent is the "Control method of vehicle engine arranged in association with fluid." This invention involves an engine linked with a fluid coupling that includes a clutch. The control method first assesses the engagement state of the clutch and determines if the vehicle is in a specific deceleration mode. If both conditions are met, the engine output is subsequently increased, optimizing power delivery during critical operations.
Career Highlights
Yoshimasa Nagayoshi has built a distinguished career with reputable companies in the automotive sector, including Mitsubishi Motors Corporation and Koyo Seiko Co., Ltd. His extensive experience in these organizations has facilitated the development of practical and innovative automotive technologies that continue to influence the industry.
Collaborations
Throughout his career, Yoshimasa has worked alongside esteemed colleagues such as Takeo Hiramatsu and Ikuo Maruyama. These collaborations have allowed for the pooling of knowledge and expertise, fostering an environment of creativity and advancement in automotive engineering.
Conclusion
Yoshimasa Nagayoshi exemplifies the spirit of innovation within the automotive industry through his remarkable contributions and patents. His methods and inventions are not only pivotal in enhancing vehicle efficiency but also illustrate the importance of collaboration and career development in the field. As he continues his work, the impact of his innovations will undoubtedly shape the future of automotive technology.