Location History:
- Ichikawa, JP (1989)
- Osaka, JP (1995)
Company Filing History:
2 out of 20 
1 out of 614 
1 out of 832,718 Years Active: 1989-1995
Title: The Innovations of Toshio Nagatsuka
Introduction
Toshio Nagatsuka is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of materials science, particularly in the development of probes for measuring various elements in molten materials. With a total of two patents to his name, Nagatsuka's work has advanced the understanding of carbon activity and impurity measurement in industrial applications.
Latest Patents
Nagatsuka's latest patents include a probe using a mixed sub-electrode for measuring the activity of carbon. This innovative probe allows for the measurement of solute carbon activity, which was previously unmeasurable due to the lack of stable solid oxides at high temperatures. The probe features a solid electrolyte with a mixed sub-electrode and a reference electrode that provides a predetermined oxygen potential. The mixed sub-electrode consists of a carbide and an oxide of an element other than carbon.
Another significant patent is a composite probe for measuring the concentration of an impurity element in molten iron. This probe is equipped with three sensors: the first measures the activity of the impurity element directly, the second measures the activity of free oxygen, and the third measures carbon content. The data from these sensors are used to provide a compensated measure of the impurity element.
Career Highlights
Throughout his career, Toshio Nagatsuka has worked with prominent companies such as Osaka Sanso Kogyo Ltd. and NKK Corporation. His experience in these organizations has contributed to his expertise in developing advanced measurement technologies.
Collaborations
Nagatsuka has collaborated with notable individuals in his field, including Minoru Sasabe and Nobuo Hamada. These collaborations have further enriched his research and development efforts.
Conclusion
Toshio Nagatsuka's contributions to the field of materials science through his innovative patents have significantly impacted industrial measurement techniques. His work continues to influence advancements in the understanding of carbon activity and impurity measurement in molten materials.