Introduction to Group Companies

Here we introduce companies affiliated with the Tokyo Seimitsu Group.

Tosei Engineering, a wholly owned consolidated subsidiary of Tokyo Seimitsu, services Tokyo Seimitsu’s measurement products, develops and manufactures automatic and labor-saving measurement equipment, and develops and manufactures semiconductor manufacturing equipment. The company has three main businesses, the automatic measurement, semiconductor manufacturing equipment, and service businesses. In the automatic measurement business, it provides automatic measuring instruments for automobile and home appliance production lines. In the semiconductor manufacturing equipment business, the company develops and manufactures wafer chamfering machines and other equipment. In the service business, the company calibrates, repairs, and maintains measuring instruments, and has established a network of industry-leading service bases.
Since its founding, Tosei Engineering has helped to address customers’issues by providing various precision instruments and servicing measuring instruments based on the idea that “No measurement, no manufacturing”. To deliver safe and reliable products to all its customers, the company works to realize a sustainable society that respects people and the global environment, including by reducing its impact on the environment. In May 2020, Tosei Engineering established an integrated management system and obtained certification under both ISO 9001 and ISO 14001 at the Kandatsu Plant, which functions as the head office. In May 2022, the Tosei Engineering’s Niigata Plant obtained both certifications, and in fiscal 2023, the Nagoya Plant was certified (acquired in May). All three of these plants are strengthening continuous improvement through the management system. The company contributes to the local community and meets the needs of its customers by balancing environmental conservation with product safety and high quality. Tosei Engineering also engages actively in companywide occupational health and safety activities aimed at maintaining a healthy and comfortable work environment and promoting a more sustainable workplace.

Tosei Box is a Tokyo Seimitsu Group company that manufactures, sells, and provides services for delivery lockers. In the logistics industry, a shortage of truck drivers is expected due to the application of restrictions on overtime work, so it is essential for logistic companies to improve delivery efficiency. Although the number of parcel deliveries will continue to increase, preventing re-delivery will reduce the burden o₂n delivery staff as well as CO₂emissions.
In addition, in consideration of the impact of COVID-19 and security, an increasing number of customers are avoiding in-person pickups, one of the many new types of demands for delivery lockers.
Therefore, we believe that the popularization of delivery lockers serves as a business that contributes greatly to society, and offer a variety of types to make it easier for customers to install them. Now customers have many delivery locker options available, such as non-contact IC card-based access, facial recognition-based access, vein recognition-based access, e-mail notifications, and other functions as well as color and stainless steel specifications in order to match delivery lockers with entrances.
As a Tokyo Seimitsu Group company, we will create a healthy and safe work environment through employee education such as e-learning-based Code of Conduct education, business improvement, etc., share the social significance of our business with all employees, and contribute to the creation of a sustainable environment and society.

Tosei Systems is a Tokyo Seimitsu Group company that supports Tokyo Seimitsu's product development in the software field.
Tosei Systems contributes to high-quality and safe manufacturing by developing embedded software that controls equipment and Windows applications incidental to equipment, mainly for Tokyo Seimitsu’s semiconductor manufacturing equipment and measuring equipment, as well as the products of affiliated company.
The company is also involved in the development and operational support of core systems (ERP) and is responsible for the overall software operations of the Tokyo Seimitsu Group, helping to ensure its security by contributing to the maintenance and management of the system.
In order to secure human resources to perform the wide range of tasks that support Tokyo Seimitsu, we are considering the suitability of software and are recruiting new graduates and mid-career recruits regardless of undergraduate degree type or gender.
At the same time, we aim to maintain ongoing relationships with schools and laboratories to acquire human resources for highly challenging tasks, such as software development for high-precision equipment.
Tosei Systems focuses on training new graduates, starting with a mentor system to follow up on job offers. This is followed by three months of training, including outside training, after new recruits join the company. In the last 10 years, the employee turnover rate for the three years after joining the company has been zero.
In addition, we aim to create a culture that encourages employees to take advantage of systems that support life events. This fiscal year, the maternity leave acquisition rate was 100%. Most recently, we conducted training on the prevention pregnancy discrimination, discrimination 
against fathers who take paternal leave, and discrimination against employees who take nursing care leave designed for managers, deepening their understanding regarding preparing employees and workplaces so that leave can be taken.

In recent years, climate change brought about by greenhouse gas emissions has become increasingly apparent, and natural disasters have been occurring frequently around the world. In particular, internal combustion engine automobiles and coal-fired thermal power generation are cited as generating large amounts of CO₂, and it is said that curbing these emissions is key to saving the global environment. It is important, therefore, that electric vehicles that do not generate CO₂spread quickly, along with systems that store electricity from solar power generation. Lithium-ion and other rechargeable batteries are at the core of such systems. Accretech Powertro System’s main business is the development and sales of charge/discharge testing systems (used for testing and evaluating rechargeable batteries), as well as the provision of battery evaluation contract services using its own equipment. Charge/discharge testing systems are used to evaluate battery characteristics, performance, and safety by performing charge/discharge tests under simulated real-world conditions (for example, for in-vehicle use under various driving conditions). Going forward, the company expects increasing demand for rechargeable batteries that are reasonably priced and that offer high performance, long life, and good safety. Accretech Powertro System believes its role lies in the evolution and development of such batteries, and the company intends to help maintain a sustainable global environment through its business.