Company Information

Who we are

HQ : Satte City, Saitama
Established : 1943
Employees : 183 (as of April 1, 2023)

As a specialized valve manufacturer, we have been in charge of processing, assembly and installation for over a century. We support municipal water supply projects nationwide by supplying control butterfly valves, check valves, and pressure reduction valves.
We listen carefully to the needs of customers and propose valves with specifications according to the application. You will be able to acquire knowledge about valves from scratch through factory training and external training.

Our Mission
Water is essential to people’s lives, including their daily lives and manufacturing products in factories.
Our mission is to protect and support lifelines through valves without stopping the flow of water.
Our employees work with a high level of satisfaction in this highly social contribution job.

Our company’s valves are always found in places where there is water, such as water treatment plants, underground water and sewage pipes, and rivers.
Our company, which has been in business for more than 100 years, aims to strengthen its organization in order to continue supporting people’s lifelines.

Our vision

We become a group with world-leading valve technology and skills.

Since our company was founded in 1917, we have contributed to society through manufacturing centered on valves, which are essential for water control.

Our assets are the trust and track record we have steadily built up over the 100 years since our establishment. We will work hard every day to provide our customers with the best products and services that support society, industry, and daily life, and we will continue to work together as a company to manufacture products with sincerity.

In recent years, the aging of various public infrastructure has become a problem. Our mission is to continue to listen to the voices of our customers, carry out honest work such as diagnosis and construction, and contribute to society in these types of issues.

Corporate philosophy:
We become a group with world-leading valve technology and skills.

  • Our company will continue to be an organization that contributes to society with the technology and skills we have cultivated over many years.
  • Our company will continue to be an organization where all employees possess craftsmanship and always deliver better products to our customers.

Our services/products

Control valves, shutoff valves, backflow prevention valves, water control doors, butterfly valves, gate valves, check valves, etc.

Job Description

Details of the job

You will be responsible for designing water and sewage valves, industrial and agricultural water valves, and related work.

The following duties will be assigned in accordance with customer applications for which orders have been received by the sales staff.

  • Production design of water valves
  • Improvement of line-up products
  • Design of water and sewage valves
  • Design of water valves for industrial and agricultural use
  • Development and design of new products

After joining the company, you will be involved in the manufacturing process through factory training and learn about the structure and features of valves before being assigned to your respective department.
After assignment, you will learn your work through on-the-job training under the guidance of senior employees.

We will provide internal and external training as appropriate.

Depending on your experience and aptitude, you may be required to go on business trips throughout Japan.


Mandatory skills

Preferred skills

Required skills details

・Those who have knowledge of mechanical design

・Those who can operate 2D and 3D-CAD
*Software used (2D: AutoCAD Mechanical, 3D: Inventor)

・Those who have knowledge of the 4 dynamics
*We will give priority to those who have particular knowledge of fluid dynamics.


  • Those who are interested in manufacturing
  • Those who like working in a team
  • Those with an ambition to take on any challenge without fear of failure
  • Those who are bright and energetic
  • Those who can honestly tell others that they don’t understand something
  • Those who like Japanese culture
  • Those who actively try to communicate in Japanese

Career path

1st year

Design assistance under seniors (learning CAD operations and design document creation procedures) Acquiring basic knowledge of valve and mechanical design

2nd year

Design assistance under seniors. Learn design work so that you can become a designer. (Learning design verification methods, etc.)

3rd year

Perform design work as a designer.

5th year

Become a leader of a small group and lead a team. You will also provide guidance and management. (Leader, chief class)

10th year

Become a leader of not only one group, but also two or three teams. You will also be assisting the section manager. (Unit Head class)

Workplace Environment

Our team/corporate culture

It’s an environment where employees are close to each other, and it’s easy to consult with seniors and superiors. All of our employees are kind and easy to talk to, and if there’s something you don’t understand, they’ll be happy to help.

In addition, we hold regular meetings to discuss improvements to work content and the work environment, such as what we notice, and to implement improvements if necessary. We are building an organization that can always create a better work environment.

Typical daily work schedule

8:15 Coming to work (confirmation of work on the day)
8:25 Radio calisthenics
8:30 Morning meeting
8:40 Work start
Consent drawing creation
12:00 Break
12:45 Work starts
Production drawing creation
16:45 Break or leave
17:00 Overtime (plan according to workload)
18:45 Leaving (Leaving hours are 20: 00 from September to November during the peak season)

Post-employment and on-the-job training

  • Training (We have both internal and external training.)
  • On-the-Job Training (Start with the basic content and change it according to the level.)

We expect you to learn the work through OJT education from your seniors. We have an annual training program.

Are there any senior non-Japanese nationals, or English-speaking employees?

There is one Chinese national. (Female)

Why you should work at our company

Benefits highlights

< Other Benefits >
・Cafeteria (catered lunch box, etc./3000 yen meal allowance provided)
・Completely equipped lockers
(We also added a rest area this year!)
・Air-conditioned inside the office and a spot cooler inside the factory
・Boiler (Heating Facility)

Housing support

Lessee and head of household under 40 years of age
Company housing will be provided + 10,000/month (however, the rest of the rent must be paid by own).

Leisure facilities at work & activities outside of work

Although we are currently not doing so, we would like to hold regular social gatherings with people who join us.
Take part in company events (BBQ, dinner party) as well as Japanese landmarks.

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