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Tohoku Nitto Koki Co., Ltd.

共に悩み、共に挑む。 ひとつのチームとなり築いた 歴史と未来をつなぐショールーム

Tohoku Nitto Koki Co., Ltd.
meets

Born by consolidating the functions of two companies
Ozaso Plant
A place to communicate corporate appeal

Tetsuya Kuwahara, Managing Director and Plant Manager, Tohoku Nitto Koki Co., Ltd.<br>*Title as of January 2026
Tetsuya Kuwahara, Senior Managing Director and Plant Manager, Tohoku Nitto Kohki Co., Ltd.
※Titles are as of January 2026.

On July 1, 2025, a new manufacturing base was established in Ozaso, Fukushima City.
This is the symbolic "Ozaso Plant," which started its journey in 2024 when Medtec Co., Ltd. (Yamagata City, Yamagata Prefecture) and Shirakawa Nitto Kohki Co., Ltd. (Shirakawa City, Fukushima Prefecture) merged to form Tohoku Nitto Kohki Co., Ltd. Medtec manufactured machine tools and annular cutters, while Shirakawa Nitto Kohki manufactured door closers and electric screwdrivers. The plant, which brings together the technological capabilities and production know-how cultivated by both companies and consolidates their functions, stands out remarkably in the nature-rich area of Ozaso.
"Due to its location right next to the Osasazu Interchange and adjacent to the roadside station, it easily catches people's eyes, increasing opportunities for them to take an interest in the factory. Given that, we thought we should make it a 'showcase factory' not just on the outside, but on the inside as well," says Plant Manager Tetsuya Kuwahara. "Since our company mainly makes products for businesses, the general public often does not know what kind of company we are. We decided to create internal exhibits and a tour course so that more people can learn about what kind of history we have, what kind of products we make, and what kind of people work here."
NOMURA MEDIAS was in charge of the design and planning. Mr. Kuwabara stated, "NOMURA MEDIAS' proposal in the presentation was excellent, and the exhibitions they had handled for other companies were also impressive, so we decided we definitely wanted to ask them." The project began with the request to make the showroom easy to understand, focusing on how to best represent the company, Tohoku Nitto Koki.
To address this, NOMURA MEDIAS proposed allowing visitors to experience the company's appeal by setting up three corners: "Learn," "Touch," and "See."
Visitors first learn about the history from the founding of the predecessor company to the establishment of the Ohzoso plant and representative products through the exhibits in the "Know" corner. Next, they touch actual products in the "Touch" corner and experience their appeal firsthand. Then, in the "See" corner, backed by the knowledge and experience accumulated in the "Know" and "Touch" sections, they tour the manufacturing site where employees actually work. Given that many of the products are unfamiliar to the general public, incorporating this sequence resulted in a story-driven structure that allows people of all positions and generations to deepen their understanding and enjoy the experience.

A "showcase factory" in harmony with nature. The facade, its face, was designed by Kengo Kuma (Photo cooperation: Matsui Corporation)
A "showcase factory" in harmony with nature. The facade, its face, was designed by Kengo Kuma (Photo cooperation: Matsui Corporation)
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Employees sharing their true feelings
A workshop that deepened bonds

Natsumi Nishikiori, Planner, NOMURA MEDIAS
Natsumi Nishikiori, Planner, NOMURA MEDIAS

While the direction for the showroom's structure was decided, creating better exhibition content required gathering opinions and requests from many employees.
Natsumi Nishikori, who was in charge of planning, looks back: "The most difficult part was organizing and verbalizing the features and appeal of Tohoku Nitto Kohki first. Many of the employees were involved in creating such an exhibition for the first time, and furthermore, the thinking of the former two companies differed slightly, so it took a lot of time to boil it down to content that everyone could agree on."
To solve this challenge, NOMURA MEDIAS proposed a workshop.
"This was an initiative proposed to capture the realistic voices of employees. We wanted to gather everyone belonging to the respective factories in Yamagata and Shirakawa, and through the workshop, explore where the strengths, appeal, and 'Tohoku Nitto Kohki-ness' of Tohoku Nitto Kohki lie," Nishikori explains.
In the workshop, which mainly gathered young frontline employees, the results of the prior survey were first dived into while holding discussions. It became clear that, particularly among the mid-career group living with families, while there were expectations for the new factory, there was also a sense of "anxiety about working in a new environment." Furthermore, regarding the question of "What kind of people would you like to visit the new factory?" the survey yielded many answers considering the company's future, such as "people who will lead to recruitment in the future." However, through repeated discussions, true feelings also emerged: "But actually, we also want our close family and friends to come and see it!"
As the discussions progressed, it was recognized that simply lining up products would not convey their value, and that careful explanation was necessary precisely because these are products rarely seen in daily life. Nishikori and her team were left with a strong impression of each employee's passion for manufacturing and their high level of trust in their fellow co-workers.

Group work was also conducted to reaffirm the appeal and selling points of the main products.
Discussing the "door closer," a device that automatically and slowly closes doors, the team presented that Tohoku Nitto Kohki's door closers are used in familiar places such as Shinkansen train toilets and telephone booths, as well as in applications that protect people's safety, such as emergency telephones in tunnels and fire doors. As the product's strengths, they highlighted its wide variety and its ability to handle custom-made orders.
Through the workshop, employees openly exchanged frank opinions with each other and reaffirmed what "Tohoku Nitto Kohki-ness" is. Designer Minami Ohashi reflects, "It was a very meaningful time to be able to hear directly from the employees who actually make the products about their pride and passion for their work."
Mr. Kuwabara also noted that this workshop was not merely a place for exchanging opinions. "Young employees on the manufacturing floor rarely have the opportunity to talk to others about the appeal of their work. Also, because they worked in different factories, they rarely had the chance to meet, and each other's operations were invisible. I think this workshop was a very good opportunity for them to get to know each other."
Some of the employees who participated in the workshop subsequently joined the project as core members. Mr. Kuwabara says, "The employees communicated with each other and were able to unite with the feeling of 'Let's go to the new factory!' Moving from Yamagata and Shirakawa to the land of Fukushima required effort, and I think some people felt anxious. However, through the workshop, an awareness was born to introduce the appeal of their work to many people, and I believe it served as a great catalyst for switching to a positive attitude."

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Clarity and safety
Pursuing the appeal of manufacturing
Exhibition design that conveys

Minami Ohashi, Designer, NOMURA MEDIAS
Minami Ohashi, Designer, NOMURA MEDIAS

In designing each corner, NOMURA MEDIAS and on-site employees held numerous meetings, engaging in trial and error to figure out how to create an easy-to-understand showroom.
In the "Know" corner, a chronology detailing the history of two companies with different roots, Medtech and Shirakawa Nitto Kohki, merging to become one in the new factory is displayed as "The Journey of Tohoku Nitto Kohki." Within the timeline, actual machines of products that can be called "legends" representing each era are exhibited. For example, visitors can trace the evolutionary process of the "Attra Ace®" drilling machine, one of the flagship products, from a large machine to a compact model, and then to a battery-powered cordless type, allowing them to also enjoy the history of the products.
To decide the content and exhibits for this timeline, Ohashi and Nishikori traveled to various places and held repeated meetings with Tohoku Nitto Kohki. In particular, the task of finding photos and products from that time was difficult. "We had to repeatedly visit bases scattered across Yamagata, Shirakawa, and Tokyo, select items to include in the timeline from a large amount of materials and products, and put them together," Ohashi recalls of the hardships. Nishikori also looks back on that time, saying, "It felt like a treasure hunt or an excavation work for a story."
In the "touch" corner, not only clarity and fun, but also safety was pursued.
"We want to invite local elementary and junior high school students to the factory so they can actually touch and experience the products. That is why I asked that safety be our top priority and that everything be done to prevent injuries," says Mr. Kuwahara.
For example, in the hands-on exhibit of the "Jet Chisel®", which can peel off paint and the like with compressed air, the design was devised to reduce the vibration during use by weakening the machine's power more than usual, use acrylic cases to prevent touching the operating needles, and ensure that operations can be stopped immediately in an emergency. "It was difficult to adjust it so that safety was enhanced while thoroughly enjoying the product characteristics," says Ohashi.
In addition, the electric screwdriver 'Delvo®', one of the flagship products, is used in the assembly of electronic devices and automobiles, featuring characteristics such as stopping precisely when screw tightening is completed with minimal impact upon stopping. To allow visitors to experience these features, an exhibit was set up where six screws are placed, enabling a 'screw-tightening competition' between the Delvo and a manual screwdriver. The 'Balance Ace®', which suspends the Delvo, is actually used in the factory as well, but considerations for safety were made by adjusting its placement so it does not collide with visitors' heads. This 'screw-tightening competition' was originally conceived with children in mind, but adult visitors are actually enjoying it as well.
The "Watching" corner, which serves as the factory tour course, has glass walls offering a panoramic view of the facilities. However, due to the spacious factory floor, individual products and the workers' hands are difficult to see. To address this, panels and videos explaining the technology and detailed equipment were produced and displayed along the walkthrough.
This was also a specific commitment on the part of Tohoku Nitto Kohki. Mr. Kuwahara stated, "We asked for easy-to-understand explanations so that even students could comprehend them. We want them to know about technology that we can be proud of to the world. However, since there are some processes that fall under 'know-how' which cannot be made public, we had them omit explanations of those processes upon our request, while still organizing the exhibits so that the technology is conveyed thoroughly." He noted that extreme care was also taken in choosing the words for the exhibits. "We carefully considered the content, being very particular about each and every word, such as whether a certain expression should be 'polishing' or 'grinding'..."

The members who worked on the project together as one team.
The members who worked on the project together as one team.
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As "partners" crossing corporate boundaries
Worrying from the same perspective and aiming higher together

Takashi Chiba, President and Representative Director, Tohoku Nitto Koki<br>*Title as of January 2026
Takashi Chiba, Representative Director and President, Tohoku Nitto Kohki
※Titles are as of January 2026.

Looking back on the entire project, Mr. Kuwabara said, "Above all, I felt the enthusiasm and passion of the people at NOMURA MEDIAS. They noticed even the smallest details and made various suggestions." They not only discussed face-to-face for one or two days but also had online meetings almost every week. The discussions often extended beyond the scheduled time, or additional meetings were set for the next day, indicating that enthusiastic discussions were repeated. "I believe we were able to work on the project as one team, worrying together from the same perspective and aiming for greater heights together," said Nishikori.
The completed showroom was refined down to the very moments before the completion ceremony. That sentiment was conveyed to the visitors, and Mr. Kuwahara says, "I was truly happy that everyone said it was wonderful."
Particularly popular is the "Touching" corner, where not only the "screw-tightening competition" but also the door closer exhibits have received a greater-than-expected response.
"By thoroughly showing the internal structure of technologies that are inconspicuous yet active in familiar places, people are moved and say, 'So this was Nitto Kohki's technology!' There are many people who say that whenever they see a door, they now check the door closer," Mr. Kuwabara said.
Additionally, panels summarizing the factory's automation equipment have been produced and displayed along the passageway of the "See" corner. The content conveys that automation is not solely for efficiency and productivity, but "to ensure employee safety by automating work that involves heat and danger using robots." Visitors have responded positively, saying, "It communicated that this is a company that values its employees." Mr. Kuwahara remarks, "I feel that the Nitto Kohki Group's management policies of 'contribution to society' and 'happiness of employees' are embodied through the exhibits."
Regarding the future outlook of the factory, Mr. Kuwahara states, "We will continue to improve efficiency under the concept of 'humans for 8 hours, machines for 24 hours,' aiming for an automated factory that does not place a heavy burden on employees. We want to create products here that take flight all around the world. To catch up with the product development and design efforts of the Nitto Kohki headquarters, we want to steadily increase production efficiency and foster Tohoku Nitto Kohki as the mother factory of the Nitto Kohki Group."
Takashi Chiba, Representative Director and President at the time, also reflects, "Discussions were held right up until the very end until all participating members were satisfied, resulting in the completion of a wonderful showroom." He continues, "Through this showroom, people can learn about what kind of environment and how manufacturing is conducted at Tohoku Nitto Kohki, and they have come to directly feel the joy and wonder of manufacturing. Through the experiences of 'knowing,' 'touching,' and 'seeing,' we aim to be a company rooted in the local community, and we hope to disseminate the technological capabilities of the Nitto Kohki Group from Ozaso to the world."
Tohoku Nitto Kohki, where technologies cultivated at the two bases of Yamagata and Shirakawa have fused in the land of Osazo and taken a new step forward. This showroom, which conveys the employees' passion for manufacturing, will become a new communication hub for the region, connecting history and the future.

Project Member
Projects
Manager
Takashi Sakamoto
Account
Producer
Shunichiro Kohama, Akio Kitagawa
Planner
Taiji Ishii, Natsumi Nishikiori
Designer
Minami Ohashi
Technical
Director
Satoshi Iwama
Production
Yuta Kumazawa, Harukatsu Miyazaki, Satoshi Inaba
Project Development
Wataru Takada, Ayano Nagashima
Solution
  • Planning
  • Engineering
  • Design
  • Production & Construction
  • Content Production
  • System Design & Equipment Installation
Project Year
2025.07~