Location History:
- Katushikaku, JP (1989 - 1990)
- Tokyo, JP (1994 - 2013)
- Komatsu, JP (2015)
- Hakusan, JP (2013 - 2021)
Company Filing History:
9 out of 2,736 
5 out of 223 
1 out of 83 Years Active: 1989-2025
Title: The Innovations of Takeshi Yoshikawa
Introduction
Takeshi Yoshikawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of engineering, particularly in the design and functionality of crawler-type work machines. With a total of 15 patents to his name, Yoshikawa's work has had a lasting impact on the industry.
Latest Patents
Yoshikawa's latest patents include innovative designs for bulldozers. One of his notable inventions features a crawler-type work machine that incorporates a right first oil channel, a right second oil channel, and a right third oil channel. This design allows for efficient lubrication of the hydraulic pump, steering brake, and planetary gear mechanism. Another patent describes a bulldozer equipped with a control unit that manages left and right steering clutches and brakes, enabling precise turning control based on the differential between actual and target turning radii.
Career Highlights
Throughout his career, Yoshikawa has worked with esteemed companies such as Komatsu Corporation and Toyo Ink Manufacturing Company. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in machinery.
Collaborations
Yoshikawa has collaborated with talented individuals in his field, including Hiroaki Takeshima and Koji Hanada. These partnerships have fostered a creative environment that has led to the development of advanced technologies.
Conclusion
Takeshi Yoshikawa's contributions to the field of engineering and his innovative patents have established him as a key figure in the industry. His work continues to influence the design and functionality of modern machinery.