Our Goal:
To be an integrated consulting firm that makes global contributions

This company was founded as one of the pioneering Japanese firms specializing in heat treatment, and after incorporation in 1939, it has continued to modernize, rationalize and diversify its operation as part of its efforts for steady development and implementation of new technology.

Now that globalization is rapidly progressing in every field, it is essential that we maintain flexibility towards Thailand, Malaysia, China and other emerging nations in regards to expansions, providing our customers technology support for in-house production, etc. We will continue our efforts to gain customer satisfaction as well as to make contributions to the international community.

President and CEO
Ryuji Kawasaki


Pride of leading company

Among firms specialized in heat treatment, Tohken Thermo Tech is top-class in technological capabilities, company scale and management conditions. The company has at its disposal a wide array of heat treatment technology within and outside of Japan, and also handles design, manufacturing and development of approximately 40% of its facilities and equipment.
Always a pioneer, Tohken Thermo Tech was the first in the metal heat treatment industry to expand its business overseas, and its globalization endeavors in Asia and other parts of the world are continuing.
Tohken Thermo Tech technology has supported the heat treatment and processing of the Japanese manufacturing sector since the late 1920s. Our contributions have resulted in awards and recognitions from the Ministry of Economy, Trade and Industry, Osaka Prefecture, and many more.

Pride of leading company

Human Capital that shoulders
the Tohken technology

It is impossible for customers to judge whether or not the heat treatment is exactly what they ordered; therefore, trust is everything in the world of heat treatment. We rank first in the industry in the number of employees with national certification for metal heat treatment. The Tohken Thermo Tech brand is maintained by each and every one of our employees.

Category Employees with Certification for Metal Heat Treatment Employees with Certification for Metal Material Testing
Advanced 117 No Advanced Category
1st grade 229 14
2nd grade 140 44
Total 486 58
Employees with Certification for Metal Heat Treatment

*Number of full-time employees who have the qualification for examination of “Metal heat treatment technician”