Initiatives for Safe Workplace Environments

Many devices, parts, tools, and machine tools from Tokyo Seimitsu, a manufacturer of machinery, can be found at manufacturing and distribution sites. As our products consist of equipment used in production, many tasks such as delivery, installation, maintenance, and inspection occur in the unfamiliar environments of customers' production sites.

By carefully investigating risks associated with these, observing and predicting the movement and flowline of workers, and implementing measures to minimize safety risks, we promote occupational health and safety initiatives so that everyday work actions can be carried out safely and rationally. Based on this approach, activities involving the following four aspects are included in reports.

  • Safety management in plants
  • Assurance of safety outside of plants
  • Disaster prevention, disaster mitigation, and emergency lifesaving
  • Traffic safety during commuting and business trips

Safety Management in Plants

Plants are spaces where employees carry out work every day. The basic structure of a plant does not undergo significant change other than during expansion or renovation, but it does change continuously due to adjustments in production activities, changes in product composition, improvement activities, and so on.

Accordingly, ongoing activities to seek out and mitigate safety risks are important.
At both our Hachioji Plant and Tsuchiura Plant, we have set reduction targets for industrial accidents and accidents involving company cars, and engage in ongoing accident reduction activities. Under each plant's Safety and Health Committee, we promote multifaceted activities through establishing subcommittees such as the Safety Subcommittee, the Health Subcommittee, and the Disaster Prevention Subcommittee.

Activities of the Safety and Health Committee

At each plant, we organize a Safety and Health Committee with the Plant Manager as the general safety and health manager. Based on the annual plan approved by the Board of Directors, the committees carry out activities for occupational safety related to the environment, machinery, tasks, etc.; occupational health related to infection, food poisoning, mental health, chemicals, etc.; self-defense firefighting; disaster prevention and mitigation; traffic safety and emergency lifesaving; and other matters.

We also conduct internal audits twice a year, with results submitted to the Audit Department and reported to the Board of Directors. The Health and Safety Committee is subject to audits by the Audit Department.

Reduction of Industrial Accidents

The Hachioji Plant and Tsuchiura Plant have each set a target of zero accidents resulting in leave. Both plants achieved this target in fiscal year 2020, but each experienced three minor accidents (six in total) that did not result in leave.

To prevent these from becoming serious accidents, we work to prevent recurrence of minor accidents and are strengthening our inspections and risk assessments.

Tsuchiura Plant of the Metrology Company maintains a record of 31 consecutive years of no accidents resulting in leave. The accident frequency rate*1and severity rate*2 for the Semiconductor Company, the Metrology Company, and Tokyo Seimitsu (non-consolidated) are shown below.

Frequency rate for accidents resulting in leave *1

  FY2016 FY2017 FY2018 FY2019 FY2020
0.71 0.00 0.00 0.97 0.00
0.00 0.00 0.00 0.00 0.00
Tokyo Seimitsu
0.51 0.00 0.00 0.71 0.00

Severity rate for accidents resulting in leave *2

  FY2016 FY2017 FY2018 FY2019 FY2020
0.043 0.000 0.000 0.004 0.000
0.000 0.000 0.000 0.000 0.000
Tokyo Seimitsu
0.031 0.000 0.000 0.003 0.000

*1Accident frequency rate: Frequency of accidents, expressed as the number of casualties caused by industrial accidents per one million total working hours.

*2Accident severity rate: The severity of accidents, expressed as the total number of working days lost per 1,000 total working hours.

Initiatives for Occupational Safety

In addition to assessments and countermeasures for work environment risks conducted through workplace patrols and risk assessments performed when introducing new machinery or changing work procedures, we work to avoid risk by conducting education and training on machinery operation, heavy machinery work, wiring operation, and other topics as needed.

We further supplement in-house education with participation in occupational safety seminars at external training institutes. Most of these seminars at external institutes are conducted by the Hachioji Branch of the Tokyo Federation of Labor Standards Associations, of which our Company is a participating member. These seminars aid in promoting occupational accident prevention activities for workers in the region, in addition to providing education for our employees.

●Items implemented in FY2020

Safety training for forklift
Hachioji Plant
(conducted by Tokyo Federation of Labor
Standards Associations, Hachioji Branch:*)
No. of people
Safety and health education course for new
employees (at time of hiring)*
Skill training course for sling work/special training course for crane operation* 23
Training for foremen and safety and health supervisors* 10
Skill training course for operation chief of organic solvent* 12
Skill training course for chief of specified chemical substances and tetraalkyl lead, etc.* 2
Special training for workers dealing with dust* 10
Tsuchiura Plant No. of people
Safety training for forklift, sling, and crane operations 48


Safety Inspection and 5S *3 Patrols

At the Hachioji Plant, we conduct safety inspections of all workplaces once a year through teams composed of several persons, including the Plant Manager. On safety inspections, we use a check sheet to identify safety risks.
At workplaces where risks are discovered, we conduct follow-up inspections at a set period of time after directions for improvement are issued, to confirm the effectiveness of the improvements. We regularly carry out 5S patrols to promote the tidying and ordering of workplaces.
Using a scoring system introduced in fiscal year 2017, we commend high-scoring workplaces twice a year, increasing 5S awareness in every workplace.

*35S: A slogan for maintenance and improvement of workplace environments. It stands for sort (seiri), set in order (seiton), shine (seisou), standardize (seiketsu), and sustain (shitsuke).

Handling of Chemicals and Chemical Substances

When purchasing new chemicals and chemical substances, the division in charge at the Hachioji Plant grants purchasing permission for both plants. This enables the division to track all chemicals and chemical substances used and stored at both plants.
Through this central management of chemical substance risks, usage/storage methods, laws and regulations to be observed, and the requirements of these, all applicable divisions are able to quickly prepare for and respond to legal revisions.

We require divisions that manage and use chemical substances to conduct regular inspections and regular quantity checks in accordance with standards, to conduct regular internal audits by qualified ISO 14001 internal auditors, and to carry out patrols of chemical management and storage status by the Regulated Substance Control Subcommittee under the Safety and Health Committee. In fiscal year 2020, we conducted these patrols seven times, including follow-up patrols. In fiscal year 2020, we conducted a chemical substance risk assessment by reviewing 76 currently used and newly adopted chemical substances at both plants.

Assurance of Safety outside of Plants

Clean room clothing
Clean room clothing

As the products provided by Tokyo Seimitsu consist of equipment used in production, many tasks such as equipment installation, maintenance, and modification occur at customers' production sites. At our plants, we perform risk management according to our own standards and methods, and are able to control safety standards related to the environment and equipment. At customers'plants, however, we are unable to judge risks in advance.

Operation of semiconductor manufacturing equipment in particular takes place in what are known as super clean rooms. The special clean room clothing worn during work in these rooms narrows the field of view and restricts movement.

Under these conditions, workers must have the ability to anticipate and avoid potential dangers at an early stage.

To provide education and training for improving this ability, the CE (Customer Engineering) Department of the Semiconductor Company, which is in charge of customer support and support engineer training, implements the Work Leader Training of the SEAJ(Semiconductor Equipment Association of Japan) every two years. Trainees hone their skills by repeatedly undergoing regularly-updated education, enhancing their ability to execute work more safely.

Disaster Prevention, Disaster Mitigation, and Emergency Lifesaving

Evacuation drills for all sections

In order to prevent the spread of the COVID-19 infection, the evacuation drill that we conduct annually for all divisions was changed to a drill avoiding the "three Cs" (Closed spaces/Crowded places/Close-contact settings), conducted under the guidance of the Hachioji Fire Department.

Individual level

  • Confirmation of floor evacuation routes using evacuation route map
  • Confirmation of locations of fire extinguishers and fire hydrants on the floor using checklist

Division/team level

  • Briefings for leaders, covering the sounding of alarm (or occurrence of disaster) to completion of evacuation
  • Briefings and guidance on handling of fire hydrants and fire extinguishers

The Hachioji Plant conducts drills for divisions and teams, and reports outcomes to the Hachioji Fire Department. Similarly, the Tsuchiura Plant also conducted confirmation of evacuation routes and fire extinguishers locations for all divisions and teams.

Team-level evacuation drill01
Team-level evacuation drill
Team-level evacuation drill02

Self-Defense Fire Brigade

At both the Hachioji Plant and Tsuchiura Plant, we organize self-defense fire brigades and conduct regular training one or two times a month according to annual plans. We have installed Digital CB transceivers to enable practical firefighting activities while maintaining proper communication in emergencies, and increased the number of the transceivers to five in fiscal year 2020. We plan to further increase the number of units in consideration of manufacturing site expansion.

Emergency Scenario Training

In every division, we conduct emergency scenario training for splash prevention, recovery/cleaning, and other tasks in situations such as hazardous substance leaks.
A training plan is submitted to the person responsible for environmental management at the start of each fiscal year, and a report is submitted following training. In fiscal year 2020, the Hachioji Plant conducted independent training for 11 divisions. At the Tsuchiura Plant, 105 people from the plant department took part in chemical cleaning agent splash prevention training.

Emergency scenario training01
Emergency scenario training
Emergency scenario training02

Emergency Lifesaving

To allow us to assign multiple participants in emergency lifesaving training to all workplaces at both plants, several employees undergo emergency lifesaving courses every year. In fiscal year 2020, four people underwent an advanced first aid seminar at the Hachioji Plant. The seminar was canceled at the Tsuchiura Plant to prevent the spread of the COVID-19 infection.
We have installed AEDs at the Hachioji Plant and Tsuchiura Plant, as well as at the large Sales Offices in Nagoya and Osaka. At the large Hachioji Plant, one AED*4 and one stretcher are placed in each of the eight buildings. The plant also engages in disaster response and emergency lifesaving measures including drinking water dispensers, power generators, and trash cans containing portable toilets for disaster response.

*4AED: Automated External Defibrillator.

Traffic Safety During Commuting and Business Trips

Every year, the Hachioji Plant and the Tsuchiura Plant invite lecturers from the traffic section of their local police stations to hold seminars on traffic regulations and traffic safety. Employees authorized to drive company cars are required to attend the seminar, as are commuting employees who have received permission to park a car, a motorcycle, or a bicycle at the Company.
In fiscal year 2020, under the guidance of their local police stations, the plants conducted the seminars with steps taken to avoid the "three Cs" (Closed spaces/Crowded places/Close-contact settings) and prevent the spread of the COVID-19 infection. The Hachioji Plant held the seminar two times, with attendance by a total of 205 people. The Tsuchiura Plant raised awareness of safe driving in divisions and confirmed the training implementation records for all targeted people.