ESTOH deals in everything from the manufacturing of ultra-precise plastic products to molds
ESTOH carries out the full-cycle of mold production and management in-house: everything from design to manufacturing, maintenance, and injection molding. We are able to complete all cycles—identifying issues, examining and implementing solutions, and evaluating results—in-house, even if we come up against new challenges and issues during production. That’s why you can trust us to produce high-quality products.
In October 2017, MSD Investments Ltd., a joint venture between Mitsui & Co., Ltd., Sumitomo Mitsui Banking Corporation, and the Development Bank of Japan Inc., acquired our shares. This has empowered us to steadily push forward with preparations to progress to a new stage.
Supporting Japanese manufacturing with mold design,
manufacturing, and injection molding.
Contributing to the future of the manufacturing industry.
First, we conduct hearings with customers to determine their needs. We then discuss these needs with various divisions to decide how to manufacture the product.
Our in-house mold design division allows us to promptly get started on production.
Our mold design makes ample usage of the unique expertise we have accumulated over the years, enabling cost reductions of the product itself.
We manufacture high-functionality, long-life ultra-precision molds.
The permissible range for the accuracy of the main parts is ±1 μ (micron). Fueled by a passion for high accuracy, we create ultra-precision molds.
We can mass-produce high-quality, high-precision products.
We can also handle production of small lots containing diverse product types.
With a goal of zero customer complaints, we carry out an original four-stage inspection at ESTOH to ensure we meet the high level of quality demanded by our customers.
Ever since our founding, we have striven to carry out the design, manufacture, and injection molding of molds for a diverse range of ultra-precise plastic products in technologically-challenging fields such as ultrafine connectors for using in digital devices and gaskets for lithium-ion batteries used by automobile manufacturers. Our micron-level accuracy is our pride.
We deliver high-quality plastic products on-time, even when we receive large orders. This is all thanks to our elaborately planned production based on accumulated data and our 24-hour operation including weekends. We combine our production planning that carefully considers mold equipment specifications, mold maintenance periods, personnel assignment, and order status with a flexible production system that allows us to securely implement this plan. This allows us to ensure stable supplies.
At ESTOH, our policy on quality is “selling peace of mind to customers.” We carry out a thorough four-stage inspection to meet the level of quality demanded by our customers and provide high-quality products.
We have also installed a no-dust room in our plants to prevent contamination. We will continue to strive for high quality to provide safe and reliable products to our customers.
1. Image inspection, 2. Sampling inspection, 3. Visual inspection, 4. Dimensional inspection and strength inspection
We received ISO9001 certification in 2005 and ISO14001 in 2004. Going forward, we will continue to proactively work on quality management initiatives, always striving for even higher standards.
A specific initiative we are working on is acquiring certification of the quality standard IATF16949 that contains the necessary conditions demanded in the automobile industry.
The name ESTOH is instilled with the vision of “Taking the Stream of the Epoch
with Originality and Heart” (anticipating the trends of the time with originality and passion).
ESTOH Co., Ltd. (hereinafter the “Company”) has established this Privacy Policy in order to systematically ensure appropriate handling of personal information, based on the Act on the Protection of Personal Information (hereinafter “Personal Information Protection Act”).
