Location History:
- Niiza, JP (2001)
- Saitama, JP (2003 - 2009)
- Wako, JP (2003 - 2017)
Company Filing History:
6 out of 10,092 
5 out of 22,004 
Years Active: 2001-2017
Title: **Innovative Contributions of Toshiyuki Arima in Axial Compressor Technology**
Introduction
Toshiyuki Arima, an accomplished inventor based in Wako, Japan, has made significant strides in the field of axial compressor technology. With an impressive record of 11 patents, Arima's innovative designs and methodologies have contributed to advancements in aerodynamics and efficiency in compressor systems.
Latest Patents
Arima's latest patents showcase his expertise in optimizing blade and vane designs. One notable patent involves the airfoil geometry of a blade for axial compressors. This innovative blade design features a suction surface with a concave region that has a negative curvature at the leading edge, combined with a flat region. This configuration generates multiple compression waves, thereby moderating the magnitude of the first passage shock. This unique property effectively reduces pressure loss and prevents boundary layer separation. Additionally, a concave region on the pressure surface further stabilizes airflow velocity, leading to decreased pressure losses through the suppression of the second passage shock.
Another significant patent outlines a vane profile for axial-flow compressors. This design includes a pressure surface that generates positive pressure and a suction surface that creates negative pressure, both located on one side of the chord line. The bulging portion in the pressure surface, featuring a maximum curvature of 1.5 or more, plays a crucial role in enhancing flow velocity, which locally decreases static pressure. This innovative approach not only optimizes the compressor efficiency but also suppresses unwanted secondary flow, resulting in an improved operational profile.
Career Highlights
Throughout his career, Toshiyuki Arima has been associated with leading automotive and engineering companies, including Honda Giken Kogyo Kabushiki Kaisha and Honda Motor Co., Ltd. His work in these organizations has allowed him to apply his inventive talents in practical applications, shaping the future of compressor technologies.
Collaborations
Arima has collaborated with distinguished colleagues such as Toyotaka Sonoda and Markus Olhofer, further enriching the innovative atmosphere with their combined expertise. These collaborations have likely accelerated the advancement of their projects, allowing for the integration of diverse perspectives and skills.
Conclusion
In conclusion, Toshiyuki Arima's contributions to the field of axial compressors are marked by his innovative designs and practical application of advanced aerodynamic principles. His numerous patents are a testament to his creativity and dedication to improving compressor efficiency, ensuring that his work continues to influence the industry for years to come.