2025-02-26
[Explanation] Why top companies gather in front of Tokyo Station: A new theory on the "value of the place"

"Digital signage advertising," "rice mills," "climate tech centers"... These seemingly disparate new businesses are being born one after another in Marunouchi, Tokyo. Moreover, they are not the sole venture of a single company, but rather value creation born from the collaboration of multiple companies.
In this town, organic connections formed through "places" that continually change with the times and face-to-face communities turn chance encounters into inevitable business creation. Marunouchi has become a catalyst for accelerating innovation.
Through a roundtable interview with management from collaborating companies AGC, Mitsubishi HC Capital, and Mitsubishi Estate, we explore new forms of value creation being nurtured in this city where 350,000 people work.

Face-to-face community
Expanding new business
The year is 2025. What does the workplace mean for companies and office workers?
"We want to grow the company through new businesses while generating cash from our core business. When we want to do something new, face-to-face meetings are extremely important."
These were the words of Hiroshi Wakatsuki, Executive Officer and Head of Business Development at AGC, the world's leading glass manufacturer.
As AGC promotes "ambidextrous management" (deepening existing businesses and exploring new businesses), Wakatsuki, who leads new business development, has come to recognize the value of face-to-face communication.
"You can't communicate remotely, but by using facial expressions and making eye contact, you can have a lively discussion," he said. He said that face-to-face interaction is particularly important in new business development.
"The challenge for us in starting a new business is that the scope of what we can see by ourselves is always narrow. That's where the open innovation solution becomes important. If we can get our (business partners and potential customers) to actually see the product and use it up close and think, 'That's surprisingly interesting,' then the possibilities will expand all at once."
Born just one week ago
Cross-industry collaboration
Speedy collaboration is being realized in Marunouchi, embodying "the power of space and face-to-face interaction" as spoken of by AGC's Wakatsuki.


"If executives like us had tried to do this, we probably would have had to make appointments, discuss who would go, who would accompany us, and so on, and it might not have been possible to make it happen."
These were the words of Haruhiko Sato, a director and executive managing director at Mitsubishi HC Capital, a company that provides asset finance services, primarily leasing.
As a specific example, Sato cited a new digital signage advertising business being developed by AGC, Mitsubishi HC Capital, and JR East Japan Planning (jeki).
AGC's display-integrated mirror, named "Miraria®," is an innovative technology that combines the reflectivity of a mirror with the visibility of a display with high quality. Based on this technology, a new business was born, combining Mitsubishi HC Capital's customer base and Jeki's advertising knowledge.

The three companies have begun developing a new service that links digital signage advertising in office buildings, commercial facilities, and public transportation in the Marunouchi area, aiming to develop effective advertising that follows the movements of the 350,000 employees.
The meeting point for these three companies from different industries was the Tokyo Marunouchi Innovation Platform (TMIP), which aims to create new businesses through collaboration between industry, government, academia, and the city, mainly in the Marunouchi area. This co-creation community, which includes not only large corporations but also startups and 300 partner companies, provides a place where companies that do not usually have much contact with each other can casually talk to each other.
"Our company's staff happened to hear about AGC's integrated display mirror at a networking event held by TMIP, and after direct discussions with the staff, the project was finalized within a week. It may seem like a coincidence, but this is the result of utilizing TMIP, and I feel it was inevitable," said Sato of Mitsubishi HC Capital.

Creating spaces for co-creation for the past 20 years.
TMIP was born
TMIP is a co-creation community operated by Mitsubishi Estate Co., Ltd., centered around the Marunouchi area. Its origins date back to Marunouchi Frontier, a venture support organization launched in 2000.
"Nowadays there are many such co-creation communities, but for the past 20 years we have been creating spaces where companies in the Marunouchi area can interact," said Haruhiko Araki, executive vice president of Mitsubishi Estate.
TMIP, which was launched in 2019 as an extension of this, functions as a platform to support large companies in creating new businesses and promote open innovation between large companies and startups, and between industry, government, academia, and cities.

TMIP has been used as a forum where new business managers gather to exchange information and share their views on the challenges each company faces.
This exchange serves as a starting point for large companies to form partnerships and quickly move forward with business verification, supporting the creation of businesses through co-creation.
There are numerous open innovation hubs and communities in the Tokyo metropolitan area alone, but what is it about Marunouchi that makes it unique?
"The location of Tokyo Station has great value from a global perspective. It provides good access for customers and partners from overseas, which naturally leads to active communication. This leads to accelerating innovation," said AGC's Wakatsuki.
While these interactions and co-creation events now occur spontaneously, they were in fact the result of long-standing efforts by the city.
30 years ago, Marunouchi was knownasthe "world's best interaction"
I made the decision to aim
The history of Marunouchi began in 1890 when the area was transferred from the Meiji government. In 1894, the first modern office building in Marunouchi, Mitsubishi Ichigokan, was Completion, and 20 years later, in 1914, Tokyo Station was completed. Since then, Marunouchi has symbolized Japan's business scene, but a major turning point for the area came in 1995 with the announcement of the reconstruction of the Maru Building.
"When we were conceiving the new Maru Building, we decided not to simply rebuild an office building, but to make a major change to the way we designed the town. Our goal was to create the town with the most active interactions in the world," said Araki of Mitsubishi Estate.
This decision made 30 years ago has dramatically changed the face of the city.


The new Marunouchi area, where the rebuilt Maru Building and Shin-Maru Building stand, incorporates a variety of functions, including not only offices but also commercial facilities, halls, hotels, service apartments, etc. The development of Naka-dori Ave., which was carried out in parallel, reduced the roadway, widened the sidewalk, and laid cobblestones, creating a streetscape where people could come and go.
Sato joined Mitsubishi Corporation in 1989 and has worked for companies in the Marunouchi area for 35 years, so he has experienced the changes firsthand.
"Having worked there since I was young, I've felt that the Marunouchi area is an easy place to do business, with a wide range of companies from banking, heavy industry, electronics, leasing, and more. Nowadays, everyone talks about open innovation, but I think it was something that could be put into practice naturally in this town."

The area, which was once filled with business people in suits, is now visited by a wide range of people, including families with strollers. Tug-Naka-dori Ave. war competitions between companies are held on Nakadori Street, and this has become a popular event that brings together employees of companies that do not usually have contact with each other.
Currently, it is home to approximately 5,000 business establishments and 350,000 employees, evolving into an "urban community" where offices, commerce, and culture coexist. As AGC's Wakatsuki says, "We are introduced to new startups through our relationships with banks and securities companies, and we receive ideas for ways to use the space that we would never have thought of on our own," the encounters in this town open up new possibilities.
Produced by a "rice mill" in the city
New Value
And in 2024, an experiment that symbolizes the evolution of this town has begun: an unexpected spot born out of co-creation between companies.
It is a rice mill.
Mitsubishi Estate has established a joint procurement platform called "MEC PANTRY" that treats the more than 500 food and beverage tenants in the Marunouchi area as one giant chain as a new business born from an internal proposal system. As the first step, the company opened the "Marunouchi Rice Mill" in a corner of the Kokusai Building for the purpose of jointly procuring rice.
"Rice tastes best when it's freshly milled. So we thought that by setting up a rice mill in Marunouchi and delivering the rice to food and beverage tenants in the area, we could reduce costs through economies of scale that a single store wouldn't be able to achieve, while also pleasing Marunouchi workers and visitors. Despite the rising price of rice, I've heard that the product has been well received by food and beverage tenants," says Araki.

Mitsubishi Estate employees receive rice polishing instruction from Koike Seimaiten's Yoshio Koike (left) (Photo provided)

The system involves purchasing rice from producers all over Japan, such as Sosa City, Chiba Prefecture and Kofu Town, Tottori Prefecture, polishing it on demand for each order, and delivering it to each store in the area. This was made possible in collaboration with Mitsubishi HC Capital.
"We have a strength in our customer base, which includes production areas including local governments.We would like to utilize this network to contribute to regional revitalization," said Sato.
"It may be the rice mill with the highest rent in Japan, but it should be worth more than the rent," said Araki. This experiment is also a challenge to connect urban restaurants with rural producers and create a new value cycle.
Establishment of an award to accelerate innovation
TMIP is evolving further to develop these new value creation attempts into a larger movement. The "TMIP Innovation Award", established in 2023, is a system that recognizes the creation of new businesses by large companies.
In the first year, 50 businesses were entered, and Kyocera's food allergy support service "Matoil" won the top prize. In 2024, Takenaka Corporation's building reuse materials platform business "Archi-Hub" won the top prize, and the program has been steadily gaining success.
"By participating in this award, we can raise awareness of the new business ventures we have been working on within the company. Being recognized may also make business promotion within the company smoother," explains Mitsubishi Estate's Araki.
In addition to providing support to new businesses, the company also responds to practical needs by assisting with internship recruitment, handling general affairs and accounting tasks, and even hosting social gatherings for CEOs only.
In October 2024, Japan's first climate tech hub, "0 Club," began operations in the Shin-Otemachi Building. To date, the city has launched a series of themed innovation hubs, including "FINOLAB," specializing in fintech, and "Inspired.Lab," specializing in deep tech.

They are also taking on new initiatives that utilize their academic knowledge, such as collaborating with the University of Tokyo to set up a reskilling program for working adults and collaborating with a researcher network, accelerating collaboration that goes beyond the traditional boundaries of each player.
It can be said that these facilities each create their own unique value and increase the innovation generating power of Marunouchi and the surrounding area.
Marunouchi, a place that fosters co-creation
The Future of Innovation

A talk session about Marunouchi Crossing 2024 held at "0 Club"
= Photo by Yuji Tanno
This is a city where chance encounters between company representatives create a chemical reaction that leads to inevitable co-creation. Three executives shed light on this possibility from different angles.
"It is extremely valuable to have a forum where people in charge of new business ventures can come together and meet others with the same aspirations," says Sato.
Wakatsuki points out the value of the unexpected encounters that can occur at this location.
"Our role is not just to connect people and companies. Mitsubishi Estate provides places and various opportunities and runs a community," adds Araki.
Marunouchi was born as an office district, an important economic infrastructure area, in the dawn of modern Japan. It has continued to change its appearance, shape and function to keep up with the times and the needs of society. In the future, it will further strengthen its function as a place for innovation and increase its centripetal force as an area that creates new value for the Japanese economy.

執筆:工藤千秋
撮影:竹井俊晴
デザイン:久須美はるな
編集:野上英文
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