About us

We will try to make progress in response to the needs of optical technologies and make everyone around us happy.

Toa Optical Technologies Ltd. contributed greatly to the development of the optical and camera industry in the 20th century with its advanced technologies of optical system, precision photography and microfabrication.

In the 21st century, optics has been expanded from visible light to ultraviolet and infrared rays, and to terahertz world, and applied and adopted in various fields, such as medical care, security, in-vehicle, robot, lighting, communication, and IoT.

We provide total support from design of optical parts and units to trial and mass production.
Our continuous and consistent operation system makes possible hight quality, low cost and short time production.


To make persistent pursuit of optical system technology.
To make everyone around us happy through work.
To promote environmental conservation activities as an “ecological company”.

In the camera industry of the 20th century, we contributed greatly to the development of the optical industry as the only one company, that product the viewfinder parts and as the number one in the viewfinder unit production by using advanced optical system, precision photography, and microfabrication technology.

In the 21st century, optics has been expanded from visible light to ultraviolet and infrared rays, and to terahertz world, and applied and adopted in various fields, such as medical care, security, in-vehicle, robot, lighting, communication, and IoT.
We are growing as an optical technology company in the 21st century with young power, and we are striving toward a big dream.

We believe that the management philosophy is “the constant pursuit of optical technology and the happiness of all the people around us through work.”

We intend to contribute to society by developing the company and striving to further improve the welfare of our employees.

We look forward to your continued understanding and patronage.

Toa Optical Technologies Ltd.
CEO Masaharu Hori


Our emblem consists of “T” combined with “∞” , which signifies Toa and infinity, the infinite possibilities and permanence of our company.


We will work on continuous improvement to maintain an appropriate, reasonable and effective environmental management system and improve environmental performance.
In order to achieve this environmental policy, we will always examine the organization and the circumstances surrounding it.
We will set environmental and make efforts to achieve them, taking into account risks, opportunities, environmental aspects, and compliance obligations.
We will review their validity every year through internal audits and management reviews.

1. Fulfillment of compliance obligations

We will sincerely implement the legal and other requirements that an organization must comply.

2. Promotion of resource conservation and pollution prevention

We will make efforts to appropriately and effectively save resources, save energy, reduce waste, and prevent environmental pollution which might be caused by our activities.

3. Education / enlightenment and raising awareness of all employees

All employees carry out business improvement education and enlightenment activities utilizing IT, regarding environmental policies and their contribution to the effectiveness of EMS.

October 11, 2016
Toa Optical Technologies Ltd.
CEO Masaharu Hori

ISO 14001

ISO14001:2015 (Since March 16, 2015)
Name of certification body
BV – Bureau Veritas
Certification registration number
Scope of supply
Design, development and manufacture of optical parts and optical units (HQ / Factory)

Notice of acquisition of environmental management system ISO14001 certification

※We acquired Eco Stage certification on January 17, 2008.
Currently, we are developing an environmental management system based on the ISO14001 standard.

August 21, 2017
Toa Optical Technologies Ltd.
CEO Masaharu Hori

Conflict Minerals Procurement Policy

We risk procuring conflict minerals (tantalum, tungsten, tin, gold) that are a direct or indirect source of funding for human rights abusers in the Democratic Republic of the Congo (DRC) and neighboring countries. We will fully cooperate with our customers’ responsible procurement activities to reduce the problem.
As a midstream company, we will conduct a supply chain survey using the latest version of the EICC-GeSI * reporting tool (CFSI_CMRT) with the aim of ensuring the reliable procurement of conflict-free minerals.
Along with the system for managing chemical substances contained in products, we have established a system for managing conflict mineral procurement information, and will promptly respond customers’ requests.

※EICC-GeSI: A non-profit organization of members of the Information and Communication Technology (ICT) industry

By protecting information assets in the information-oriented society from threats such as accidents, disasters, and crimes, we aim to win the satisfaction and trust of our customers and other stakeholders.
We have established a basic information security policy and will use it as a guideline for our information security efforts.

1. Development of internal organization and information security policy

We will maintain the necessary organizations and improve security.
We will operate the necessary information security policy as an internal rule.

2. Management commitment

The management supports information security efforts and leads continuous improvement.

3. Compliance with laws and regulations

Employees comply with the laws and regulations regarding information assets and the security requirements of interested parties.

4. Employee efforts

Employees will acquire the knowledge and skills needed to maintain and improve information security and ensure their commitment to information security.

5. Response to violations and accidents

We will reduce the infulence of violations and accidents by establishing a system for responding to information security-related laws and regulations, violations related to contracts with customers and information security accidents.

May 9, 2018
Toa Optical Technologies Ltd.
CEO Masaharu Hori


“SECURITY ACTION” is a self-declaration system for information security measures for small and medium-sized enterprises promoted by the Information-technology Promotion Agency (IPA), which aims to realize a safe and secure IT society.
We declare that we have implemented the information security in-house diagnosis and the formulation and publication of the information security policy, which are the two-star requirements.

External link: SECURITY ACTION (Information-technology Promotion Agency: IPA)

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