Corporate InformationOutline

MissionOur Corporate Mission

Using Chemical Innovation to Create Happiness
and Contribute to Society

At Tosoh Ceramics, we are always focused on
expanding the possibilities of
ceramics and creating social value through chemistry.

Our Key Corporate Social Responsibility Policies

  1. 1Organizational Administration
  2. 2Respect for the Individual
  3. 3Ensuring Safety, Peace of Mind, and Stable Operation, and Conserving the Global Environment
  4. 4Coexistence with Society

Our Quality Policy

We take a fundamental stance of putting customers first, with a focus on ensuring quality in every one of our transactions. We aim to earn and maintain the trust of both customers and society through our products and services. In order to make this a reality, we maintain an efficient quality management system.

ISO-13485:2014 Certification

ISO 13485 is an international quality management system standard for the medical field, with the aim of ensuring the continuous manufacturing and supply of safe, useful medical devices and in vitro diagnostic medicines.

Our Guiding Principles

  1. 1Focus on the Customer
  2. 2Observe Laws and Ordinances
  3. 3Maintain and Improve Our Quality Management System

AboutCompany Overview

President and Plant Manager
Masahiro Watanabe
Headquarters Location 2 Iwasekoshi-machi, Toyama City, Toyama Prefecture 931-8371
Tel: (076) 437-4551 • Fax: (076) 437-4552
Toyama Plant:
2 Iwasekoshi-machi, Toyama City, Toyama Prefecture 931-8371
Capital ¥20 million
Establishment Date April 2, 1988
Stockholder Structure 100% Tosoh Corporation
Employees 83 (as of April 1,2024)
Description of Business
  • • Manufacturing of precision processed ceramic products
  • • Manufacturing of ceramic compounds for injection molding
For Inquiries about Products Tel: (03) 5427-5170 • Fax: (03) 5427-5217


  • Toyama Plant

Company History

1988 Tosoh Ceramics was established as a wholly owned subsidiary of Tosoh Corporation, with the purpose of manufacturing and processing sintered items.
Tosoh Ceramics Toyama Plant established at the Toyama Plant of Tosoh Corporation
1990 Began production of optical connection components and materials
1994 Began sales of zirconia compounds
2006 Began production of precision ceramic components
Began sales of colored zirconia compounds
2014 Acquired ISO 13485 certification
2015 Developed a forming technique for two joined colors of zirconia
Became the first company in the world to offer zirconia components for decorative purposes as products,
made through this forming technique for two joined colors of zirconia
2016 Introduced automatic inspection equipment
2018 Inaugurated New Compound Plant
2020 Established of 7th plant
2021 Established of 8th plant
2022 Established of 9th plant

Contributions to Society

Community Cleanup Volunteering

On March 16, 2024,We cleaned up the Iwase Canal area from our plant.
We picked up a lot of trash and cintributed to the community .