Location History:
- Chofu, JA (1976 - 1977)
- Tokyo, JA (1977)
- Chofie, JP (1978)
- Chofu, JP (1978 - 1989)
- Tokyo, JP (1992)
Company Filing History:
Years Active: 1976-1992
Title: Innovations of Yoshikazu Ishikawa
Introduction
Yoshikazu Ishikawa is a prominent inventor based in Chofu, Japan. He has made significant contributions to the field of internal combustion engines, holding a total of 13 patents. His work has been instrumental in advancing automotive technology, particularly in throttle control systems and piston designs.
Latest Patents
One of his latest patents is a throttle control system for an internal combustion engine. This innovative system includes a first lever that pivots around a throttle shaft based on the movement of an accelerator pedal. A second lever extends radially from the throttle shaft and is fixed to it. The system features a transmitting mechanism that mechanically transmits the pivotal motion of the first lever to the second lever. This allows the angular position of a throttle valve to vary in response to the accelerator pedal's depression. Additionally, the mechanism can change the ratio of the pivotal angle between the first and second levers, altering the relationship between the accelerator pedal's depression rate and the throttle valve's opening angle.
Another notable patent is for a trunk piston used in internal combustion engines. This piston comprises a crown section and a skirt section, which has a pair of flat, inclined portions at opposite locations. The piston pin boss sections are connected to these inclined portions, with the distance between them decreasing from the upper to the lower portion of the skirt section. This design enhances the performance and efficiency of the engine.
Career Highlights
Yoshikazu Ishikawa is currently employed at Nissan Motor Company Limited, where he continues to innovate and develop new technologies. His work has not only contributed to the company's success but has also influenced the automotive industry as a whole.
Collaborations
Throughout his career, Ishikawa has collaborated with notable colleagues, including Masayuki Honma and Yuji Sakakibara. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies.
Conclusion
Yoshikazu Ishikawa's contributions to the field of internal combustion engines are significant and impactful. His innovative patents and collaborations highlight his dedication to advancing automotive technology. His work continues to inspire future innovations in the industry.