precision plastic products

End-to-End Development of Precision Plastic Products: ESTOH (Part 1)

ESTOH Co., Ltd. (Headquarters: Ikuno-ku, Osaka, President: Kenji Nakamura), which joined the NOK Group in 2023, has built a strong track record in the production of plastic gaskets used in lithium-ion batteries (LiBs) for electric vehicles (EVs). It handles every step from mold design through to final production. ESTOH’s core strengths include designing and machining ultra-precise molds at the micrometer scale (one-millionth of a meter), advanced injection molding using those molds, and 100% visual inspection for quality control. Now part of the NOK Group, ESTOH is looking to tap into the Group’s R&D and marketing capabilities to unlock even greater synergy.

End-to-End Development of Precision Plastic Products: ESTOH (Part 2)

Approximately 90% of ESTOH Co., Ltd.'s (Headquarters: Ikuno-ku, Osaka, President: Kenji Nakamura) products are plastic gaskets for automotive lithium-ion batteries (LiBs). One of the company's key goals is to expand its market share in this field by leveraging NOK's marketing strengths to stay aligned with ever-evolving customer needs. At the same time, ESTOH is focused on expanding into new sectors by making full use of its vertically integrated production capabilities for precision plastic components.