Location History:
- Osaka, JP (1984 - 1989)
- Mishima, JP (1990)
- Suita, JP (1993)
- Takatsuki, JP (1986 - 1997)
Company Filing History:
21 out of 240 
11 out of 57 
5 out of 26 
Years Active: 1984-1997
Title: **Innovations of Toshiaki Wada: Pioneering Magnetic Head Technologies**
Introduction
Toshiaki Wada, an accomplished inventor from Takatsuki, Japan, holds an impressive portfolio of 27 patents. His contributions to the field of materials science, particularly in the development of substrate materials for magnetic heads and magnetic head slider materials, reflect a commitment to advancing technology in high-density recording.
Latest Patents
Wada's latest patents demonstrate his innovative approaches. One such patent focuses on substrate materials for magnetic heads, consisting of 24-75 mol % of alpha-Al2O3 and 76-25 mol % of TiCxOyNz with additives. This unique composition not only retains the essential characteristics required for magnetic head applications but also ensures controlled crystallite sizes, uniform distribution of TiCxOyNz crystallites, and relief of internal stress. These features are designed to address challenges in ion beam etching (IBE), facilitating the fabrication of high-precision thin-film heads crucial for high-density recording.
Another significant patent involves the composition of a magnetic head slider material, which contains 0.1 to 20.0 vol % of at least one oxide from the group of Va elements (Ta, Nb, V) and 80.0 to 99.9 vol % of stabilized cubic ZrO2. This formulation enhances precision machinability, machining efficiency, strength, and wear resistance, enabling the production of thin film magnetic head sliders with reduced chipping.
Career Highlights
Wada has built a distinguished career in the industry, contributing his expertise at renowned companies such as Sumitomo Special Metals Co., Ltd. and Nippon Tungsten Co., Ltd. His work in these organizations has significantly influenced advancements in material science and magnetic technologies.
Collaborations
Throughout his career, Wada has collaborated with notable colleagues, including Michito Miyahara and Mitsuhiko Furukawa. These partnerships have fostered innovation and facilitated the exchange of ideas, ultimately leading to the development of groundbreaking technologies.
Conclusion
Toshiaki Wada's inventive spirit and dedication to improving magnetic recording technologies position him as a leading figure in materials science. His extensive patent portfolio and collaborative efforts underscore his impact on the industry, paving the way for future advancements in high-density recording systems.