Company Filing History:
1 out of 6 
1 out of 4 Years Active: 1993
Title: Keizou Yamamoto: Innovator in Rotary Wing Aircraft Technology
Introduction
Keizou Yamamoto is a notable inventor based in Tokorozawa, Japan. He has made significant contributions to the field of rotary wing aircraft technology. His innovative designs have led to advancements in aircraft performance and efficiency.
Latest Patents
Yamamoto holds a patent for a "Hub structure for a rotary wing aircraft." This invention features a bearingless hub structure that includes a hub body securely connected to a rotor mast. The design incorporates a plurality of flexible beam members that extend radially outward, enhancing the aircraft's operational capabilities. The patent also details a pitch housing that encircles the flexible beam members, along with a spherical bearing and a lead-lag damper, which work together to support the pitch housing and improve the aircraft's performance.
Career Highlights
Throughout his career, Keizou Yamamoto has worked with prominent companies such as Kawasaki Heavy Industries and the Technical Research and Development Institute of Japan. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in aviation technology.
Collaborations
Yamamoto has collaborated with talented individuals in the field, including Takahiro Ichihashi and Kanehiro Hanayama. These partnerships have fostered a creative environment that has led to the development of advanced technologies in rotary wing aircraft.
Conclusion
Keizou Yamamoto's contributions to rotary wing aircraft technology exemplify his innovative spirit and dedication to advancing aviation. His patent and career achievements highlight the importance of collaboration and creativity in the field of engineering.