Company Filing History:
7 out of 321 
1 out of 2,145 
Years Active: 2020-2024
Title: Mai Shimizu: Innovator in Electric Motor Technology
Introduction
Mai Shimizu is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of electric motor technology, holding a total of seven patents. Her innovative designs and engineering solutions have garnered attention in the industry.
Latest Patents
One of her latest patents is for a rotary electric motor. This invention features a stator sub-assembly that includes a stator core and a rigid wiring board. A connector is fixed to a connector mounting part of the rigid wiring board, positioned to oppose the stator core in the radial direction of the frame. Additionally, a groove part extends in the axial direction from an opening and accommodates the connector and the connector mounting part. A window part is formed in the frame to allow an opponent connector to mate with the connector accommodated in the groove part.
Another notable patent is for a motor armature winding structure and motor armature wire winding method. This design includes a filleted portion with a curved surface, formed on at least one of the corner portions at four corners of a bobbin side wall surface where a wire is wound. The curvature radius of the curved surface decreases from the winding start position toward the winding end position in the first layer of the wires wound on the bobbin side wall surface.
Career Highlights
Mai Shimizu has worked with several reputable companies, including Sanyo Denki Co., Ltd. and Japan Aviation Electronics Industry, Limited. Her experience in these organizations has allowed her to refine her skills and contribute to various innovative projects.
Collaborations
Throughout her career, Mai has collaborated with talented individuals such as Manabu Horiuchi and Jun Kitajima. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Mai Shimizu is a remarkable inventor whose work in electric motor technology continues to influence the industry. Her patents reflect her dedication to innovation and engineering excellence.