Tokyo, Japan

Takeshi Yoshikawa

This inventor holds 18 USPTO granted patents and 4 published patent applications and 1 EPO patent. Top assignees: Komatsu Corporation, Toyo Ink Manufacturing Company, Toyo Ink Sc Holdings Co., Ltd.. Active years: 1989-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Yoshikawa. Retrieved from https://idiyas.com/inventor/takeshi-yoshikawa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 18 

% Patents Active = 77.8

 

Average Co-Inventor Count = 3.7

ph-index = 4

Forward Citations = 64(Granted Patents)


Location History:

  • Katushikaku, JP (1989 - 1990)
  • Tokyo, JP (1994 - 2013)
  • Komatsu, JP (2015)
  • Hakusan, JP (2013 - 2021)

Company Filing History:


Years Active: 1989-2026

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18 patents (USPTO):Explore Patents

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 18 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.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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