Location History:
- Chiba, JP (1990 - 1994)
- Tokyo, JP (2001 - 2011)
Company Filing History:
Years Active: 1990-2011
Title: Chikashi Tada: Innovator in Steel Refinement Technologies
Introduction
Chikashi Tada is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of steel refinement, holding a total of 6 patents. His innovative methods have advanced the efficiency and effectiveness of steel production processes.
Latest Patents
One of Tada's latest patents is a removal method of nitrogen in molten steel. This method involves refining molten steel in an electric furnace using iron scrap as the main iron source. After tapping the molten steel into a separate refining vessel, metallic-Al containing material and CaO are added to the bath surface. An oxygen-containing gas is then supplied to the molten steel, initiating a nitrogen-removal reaction through an AlN formation reaction. This process allows for the production of low-nitrogen steel at low costs, even when starting with molten steel that has a low carbon content.
Another notable patent is the method for treating stainless steel refining slag. In this process, the slag formed during stainless steel refining is adjusted to have a basicity between 1.3 and 4.0. The slag is mixed with a sulfur-containing material, ensuring that the sulfur concentration in the slag is not less than 0.2% by weight. This modification effectively prevents chromium from being eluted, allowing the slag to be utilized as a roadbed material and for civil works. The slag is cooled rapidly, decreasing its temperature from 1200°C to 400°C within 48 hours to achieve noticeable effects.
Career Highlights
Chikashi Tada has worked with notable companies in the steel industry, including Kawasaki Steel Corporation and JFE Steel Corporation. His experience in these organizations has contributed to his expertise in steel refinement technologies.
Collaborations
Tada has collaborated with esteemed colleagues such as Sumio Yamada and Toshikazu Sakuraya. Their combined efforts have furthered advancements in the field of steel production.
Conclusion
Chikashi Tada's innovative patents and career in steel refinement highlight his significant impact on the industry. His work continues to influence the production of high-quality steel while reducing costs and environmental impact.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.