Toshimitsu Nakajima is a notable inventor based in Wako, Japan. He has made significant contributions to the field of engineering, particularly in the automotive sector. With a total of 2 patents, Nakajima's work focuses on enhancing the functionality and efficiency of vehicle components.

Latest Patents

One of Nakajima's latest patents is a method of controlling the electric current of a linear solenoid valve. This innovative method involves performing pulse width modulation on a coil current to adjust the hydraulic pressure of a working oil in a hydraulic clutch. This technology is crucial for transmitting and interrupting the rotational drive power from a power source to a drive wheel of a vehicle. The method includes setting the period of the pulse width modulation to a shorter value as the degree of engagement of the hydraulic clutch increases from a disengaged state. Additionally, the period of the pulse width modulation can be adjusted based on the variation of a duty ratio corresponding to the hydraulic pressure.

Another significant patent by Nakajima is a power unit for motorcycles. This power unit features a continuously variable transmission housed within the engine body. It accomplishes stepless changes in power transmission from a drive pulley shaft to a driven pulley shaft by altering the effective diameter of the belt that wraps around the pulleys. The design includes an input clutch between the crankshaft and the drive pulley, as well as a starter clutch between the driven pulley shaft and the rear wheel. The engagement and disengagement of these clutches are controlled both hydraulically and mechanically.

Career Highlights

Toshimitsu Nakajima is currently employed at Honda Motor Co., Ltd., where he continues to innovate and develop new technologies. His work has been instrumental in advancing the capabilities of automotive systems, particularly in enhancing the performance of motorcycles.

Collaborations

Throughout his career, Nakajima has collaborated with talented individuals such as Toshimasa Mitsubori and Hitoshi Kondo. These collaborations have fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Toshimitsu Nakajima's contributions to the field of automotive engineering are noteworthy. His innovative patents reflect a commitment to improving vehicle performance and efficiency. His work continues to influence the industry and inspire future innovations.

Profile summary based on public USPTO records.

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