Shoi Yamanaka

Title: Shoi Yamanaka: Patents in Electric Motor Design

Introduction

Shoi Yamanaka is an inventor based in Tokyo, Japan, whose patent work focuses on rotating electric machines and electric motor cooling. He is associated with Honda Motor Co., Ltd. His listed portfolio includes 2 patents.

Latest Patents

Yamanaka’s recent patent work includes two inventions related to stator design and thermal management.

- **Rotating electric machine.** This invention describes a rotor and a stator with a stator core made of adjacent core blocks. The blocks contain alternating first and second flow paths arranged around the circumference. Their alignment allows the first flow paths in one block to communicate with the second flow paths in the neighboring block, and vice versa.

- **Electric motor cooling apparatus.** This invention describes a stator core with a cylindrical back yoke, radial tooth portions, and slots between adjacent teeth. A cooling path runs circumferentially through the back yoke without communicating with the slots. The path is divided into at least two circumferential portions, each supplied with refrigerant through its own supply port.

Career Highlights

Yamanaka’s listed inventions address two complementary engineering challenges: arranging flow paths within a rotating machine’s stator core and supplying refrigerant through a dedicated cooling system. Both designs focus on components that can support the operation and thermal management of electric motors.

Collaborations

Yamanaka’s listed coworkers include Tadashi Yamaguchi and Tatsuya Ohzu. His work is associated with Honda Motor Co., Ltd.

Conclusion

Shoi Yamanaka’s patent portfolio highlights stator structures and cooling-path designs for electric machines, reflecting a focused contribution to motor engineering.