Company Filing History:
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1 out of 24 Years Active: 1987-2002
Title: Asao Kakinuma: Innovator in Flap Hinge Mechanisms and Rotary Wing Aircraft
Introduction
Asao Kakinuma is a notable inventor based in Kakamigahara, Japan. He has made significant contributions to the field of aviation and mechanical engineering, holding a total of 3 patents. His innovative designs focus on enhancing the functionality and efficiency of flap hinge mechanisms and rotary wing aircraft structures.
Latest Patents
Kakinuma's latest patents include a flap hinge mechanism, a method for manufacturing the same, and a flap hinge apparatus. The flap hinge mechanism features a blade-secured portion attached to a blade, a flap-secured portion connected to a flap, and a coupling portion that allows for angular displacement. This design utilizes composite materials, with fibers in the blade and flap portions impregnated with matrices, while the coupling portion remains matrix-free. This unique configuration enables smooth flap motion under large centrifugal forces, facilitating the creation of thin and lightweight designs.
Another significant patent is the hub structure for a rotary wing aircraft. This bearingless hub structure includes a hub body that connects securely to a rotor mast, along with multiple flexible beam members extending radially outward. Each beam member is encircled by a pitch housing, which connects to the rotor blade. The design incorporates a lead-lag damper and flexible portions that allow for low bending rigidity in both flapping and lead-lag directions. This innovative structure enhances the performance and reliability of rotary wing aircraft.
Career Highlights
Throughout his career, Asao Kakinuma has worked with prominent organizations such as Kawasaki Heavy Industries and the Technical Research and Development Institute of the Japan Defense Agency. His experience in these institutions has allowed him to develop and refine his innovative ideas in aviation technology.
Collaborations
Kakinuma has collaborated with esteemed colleagues, including Shunichi Bandoh and Tadashi Wakatsuki. Their combined expertise has contributed to the advancement of various projects in the field of mechanical engineering.
Conclusion
Asao Kakinuma's contributions to flap hinge mechanisms and rotary wing aircraft have established him as a significant figure in the field of innovation. His patents reflect a commitment to enhancing the efficiency and functionality of aviation technology.