Company Filing History:
1 out of 55 
1 out of 171 
1 out of 5 Years Active: 1990-1991
Title: The Innovations of Riichiroh Harada
Introduction
Riichiroh Harada is a notable inventor based in Iruma, Japan. He has made significant contributions to the field of electromagnetic actuators and motor-operated valves. With a total of 2 patents, his work showcases innovative solutions in mechanical engineering.
Latest Patents
One of Harada's latest patents is the "Electromagnetic Actuator for Valve Stem." This invention features a stator core with concentratedly wound coils around salient poles, positioned outside a nonmagnetic tubular member. The actuator includes a rotor inside the tubular member that drives a threaded operating shaft, allowing for the reciprocal operation of an objective member. The design incorporates permanent magnets arranged along the surface of each salient pole, with induction teeth formed on the rotor's circumference. This configuration enables the actuator to function as a pulse motor through alternating excitation of the coils.
Another significant patent is the "Motor-Operated Valve." This valve consists of a stator located outside a nonmagnetic tubular member that facilitates fluid flow. The stator coils are wound around multiple magnetic poles, each equipped with permanent magnets magnetized into pole-pairs. The rotor, supported within the tubular member, features induction teeth that align with the pole-pairs of the permanent magnets. A rotation-preventing mechanism is included to convert the rotor's rotational movement into linear movement for the valve member.
Career Highlights
Throughout his career, Riichiroh Harada has worked with prominent companies such as Kabushiki Kaisha Yaskawa Denki Seisakusho and Toyo Engineering Corporation. His experience in these organizations has contributed to his expertise in developing advanced technologies.
Collaborations
Harada has collaborated with notable coworkers, including Ikumi Satoh and Jun Nakano. Their joint efforts have furthered the development of innovative solutions in their respective fields.
Conclusion
Riichiroh Harada's contributions to the field of electromagnetic actuators and motor-operated valves highlight his innovative spirit and technical expertise. His patents reflect a commitment to advancing technology and improving mechanical systems.