This inventor holds 38 USPTO granted patents and 24 EPO patents, primarily in Work Vehicle Technology. Top assignees: Hitachi Construction Machinery Co., Ltd., Kcm Corporation, Kabushiki Kaisha Kcm. Active years: 2012-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Tsuchiura, JP (2015 - 2020)
- Chiba, JP (2020 - 2022)
- Abiko, JP (2012 - 2024)
Company Filing History:

Years Active: 2012-2025
Areas of Expertise:
Title: Innovations of Tetsuji Tanaka in Loading Work Vehicles
Introduction: Tetsuji Tanaka, based in Abiko, Japan, is a prolific inventor known for his significant contributions to the field of construction machinery. With a remarkable total of 37 patents, Tanaka has focused on enhancing the efficiency and functionality of loading work vehicles, particularly on challenging surfaces.
Latest Patents: Among his most recent innovations is a loading work vehicle designed to improve work efficiency on slippery road surfaces. This invention features an HST-traveling-drive wheel loader equipped with a step-on amount detection sensor, a discharge pressure detection sensor, a mode switch device, and a sophisticated controller. The controller is tasked with determining the operational state of the vehicle and adapting the maximum traction force based on the vehicle weight and the static friction coefficient. This ensures optimal performance while pushing a bucket into natural ground and during excavation operations.
Another noteworthy innovation is a wheel loader designed to automatically decrease vehicle speed without causing discomfort to the operator during loading tasks. This wheel loader, fitted with a torque converter type traveling drive system, includes a controller that regulates the shifting of the transmission. The advanced technology allows the vehicle to smoothly transition between gear ratios, enhancing operational comfort and efficiency.
Career Highlights: Tetsuji Tanaka has showcased his expertise at notable companies, including Hitachi Construction Machinery Co., Ltd. and KCM Corporation. His innovative designs have made substantial contributions to the construction machinery sector, reaffirming his status as a leading inventor.
Collaborations: Throughout his career, Tanaka has collaborated with accomplished professionals such as Koji Hyodo and Isamu Aoki. Their teamwork has significantly advanced the research and development of effective work vehicle technologies.
Conclusion: Tetsuji Tanaka's dedication to innovation in loading work vehicles underscores his importance in the engineering community. His patents not only enhance operational efficiency but also contribute to safer working environments in various conditions. Through his continued efforts, Tanaka remains a pivotal figure in the evolution of construction machinery.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile