A 64-year-old mirror factory with 7 employees found a third-party successor: local outreach fell flat, a nationwide listing matched instantly

A car’s side mirror is something taken for granted — until its absence makes driving impossible. Ozaki Mirror Industries, which had made aluminum mirrors in Osaka for 64 years, sold the company in September 2024 to MARUJOU Co., an Aichi-based glass-product manufacturer. Seven employees. Both of the owner’s sons had gone into other lines of work, and when he approached employees, the response was “there’s no way we could do it.” Since the amount is undisclosed, what this case lets us examine isn’t the price, but the route by which a small factory without a successor found its buyer. To state the conclusion up front: the turning point in this case wasn’t buyer selection. It was the single move of switching the search radius from Osaka to nationwide.

Company and succession data

Joining a company he expected to take over, until there was no one left to hand it to

Ozaki Mirror Industries was started in 1960 by Kozo’s father as an individual workshop. The same year Kozo was born. Amid the growth of the postwar boom, work increased, and the company incorporated in 1970. Having grown up watching his father’s back since childhood, Kozo naturally assumed he’d eventually take over, and joined the family business straight after university.

The baton of management didn’t pass in a straight line. When his father fell seriously ill in his 40s, Kozo’s uncle ran the company for a while. Management didn’t move to Kozo until he was in his 50s. Among the employees are longtime staff who have known Kozo since he was small. “Even though we’re a small company with 7 employees, it’s continued like a family. When I took over the company, I felt the responsibility of ‘I’m going to protect the livelihoods of every one of my employees.’”

The business itself is narrow and deep. The company has specialized in aluminum mirror processing since founding, handling everything in-house from cutting to polishing, taking on small-lot, multi-item orders. There’s almost no new entry, and the company has been valued by longtime clients. But few new entrants also means few in the industry looking to acquire that equipment and technique. This duality later comes into play.

What turned “in my 70s is fine” into “now” was one comment from a support organization

The reason he began considering succession was the lack of a successor. His two sons had each gone into other careers with no intention of taking over, and when he approached employees, the response was “there’s no way we could do it”. He judged that pushing it on someone would be wrong. “M&A wasn’t something that clicked with me before, but lately I’ve been hearing more about it, and started wondering whether we could do it too.”

Consulting the Osaka Prefecture Business Succession & Handover Support Center through his local credit union, he was encouraged that M&A was a realistic option. Even so, at this point Kozo’s own thinking was, “I’ll keep at it for another 5 years or so, and it’d be fine to find a successor once I’m in my 70s.” This is the first branching point.

“While talking with the credit union and the support center, I got the advice, ‘Rather than waiting until you’re truly cornered, it’s better to move forward while you still have some age-related margin.’ I thought, I suppose that’s true, and made up my mind to get moving, and once I did, things went smoothly, one thing after another.”

The real meaning of this advice is that, as long as physical stamina and judgment remain, the option of “the seller keeps working while handing over the business” is available. In fact, even after the deal closed, Mr. and Mrs. Ozaki have stayed on and continued working at the company. Had they waited until their 70s, this form likely wouldn’t have been possible. Time to spare doesn’t affect the price. It affects the degree of freedom in designing the succession.

For support, they chose Osaka Shoko Shinkin Bank, with whom they’d had a longstanding relationship. Mrs. Ozaki cites the deciding factor as the words of the person in charge: “They told us, ‘We’re not trying to make money from M&A. Yes, there’s a success fee, but what we’re aiming for through M&A is for the company to survive and grow afterward, and for our relationship with that company to continue. Supporting survival and growth after the M&A is exactly what we’re aiming for.’”

The decisive move was widening the search from Osaka to the whole country

This is the single most reproducible move in the case. Initially, Osaka Shoko Shinkin Bank introduced candidates centered on Osaka, but as Mrs. Ozaki put it, “there just wasn’t much solid response” for a while. So the financial institution proposed listing on Batonz.

Support-side representative Mr. Shirao’s comment clearly explains the reasoning. Ozaki Mirror Industries’ business is “a very niche business area,” and if there were a mismatch in explaining it to candidate companies at the outset, it could lead to trouble, so he felt he first needed to make an effort to thoroughly understand the business himself. He continues: “Because the business is niche, we struggled to find candidates through our own network alone, which led to the decision to use Batonz to seek matches nationwide.”

The result was dramatic. “And after listing on Batonz, the company that reached out to us right away was MARUJOU.” A deal that had drawn no traction through local networks got a response immediately after the nationwide listing went live. The contact came near year-end: they had a trip planned to Osaka right after New Year’s and asked to see the company.

The mechanism is simple. The population of companies able to judge that “small-lot, multi-item aluminum mirror processing” is something worth “buying and growing” is limited to manufacturers with adjacent technology who want to expand their processing scope. This population is scattered geographically at random, and how many such companies exist within Osaka Prefecture is purely a matter of chance. The thinner the population for a given business, the more necessary it becomes to switch the search axis from geography to attributes. MARUJOU, the company that actually raised its hand, was a glass-product processor in Aichi Prefecture, with the stated reason for acquiring being “strengthening technical capability and development know-how.” A combination of close technology and distant geography is something that, in principle, can’t emerge from a locally centered referral network.

The basis for deciding with the first company was “narrowing the conditions to one thing”

Mrs. Ozaki describes her impression of the first visit this way: “I welcomed them casually, thinking it would just be a greeting, but President Nakayama himself came in person and asked a lot of questions. I could really feel his seriousness, that he’d come genuinely intending to buy us.” Kozo said, “For someone as young as 45, he was very composed, and I felt I could move forward with the talks”, and decided to proceed without comparing against other companies.

The decision not to compare was possible because the conditions sought in a successor were narrowed. Kozo says, “There wasn’t really any particular condition I required of a successor,” while stating clearly the one line he wouldn’t compromise on: “This is a company my father built, and I watched my father work ever since I was small, feeling as a child, ‘this is useful to the world.’ Whoever it is, I want them to carry on my father’s spirit.” The support side had grasped an even more concrete condition: “continued employment of the staff.”

President Nakayama, for his part, expressed the view at the first meeting that “Japan’s small and medium manufacturers must be preserved.” When Mr. Shirao wrote, “I felt their respective needs might align,” he was pointing to this single point of alignment. When there’s only one condition, negotiations end the moment that one condition is met. The more conditions there are, the more comparison shopping is required, and the more comparison shopping is required, the longer it takes. For a seller with few buyer candidates in a niche business, narrowing the conditions is a trade, accepting a lower chance of maximizing price in exchange for raising the probability of closing.

Mrs. Ozaki’s comment explains this trade from another angle. “If we’d kept running the company as-is, it would have just been about not going under, continuing what we had, at our age, there wasn’t really any thought of doing something new anymore. Given that, I felt it would be better for the company, too, if we handed it over to President Nakayama.” Kozo continues: “It might be a strange way to put it, but I thought the company itself would be happier that way.”

What can’t be confirmed with numbers

What’s published for this case is only the outline: founding year, year of incorporation, 7 employees, timing of the deal, and the buyer representative’s age. Revenue, profit, number of clients, equipment details, and the transfer price are all undisclosed. Even “valued by longtime clients” stays at the level of a qualitative assessment. That leaves no material for an outsider to determine whether this succession was economically fair.

The lack of comparison shopping should also be noted as a risk. Kozo himself brings up the story of his wife’s friend who went on more than ten arranged marriage meetings and ended up saying “the very first one was actually the best,” explaining, “I’m also the type who places great importance on timing, so I decided to trust the feeling I got looking at the president, ‘this is the one.’” It’s clear this was a considered decision, but that doesn’t change the fact that price and terms were never tested against the market.

Furthermore, the success of the succession isn’t yet settled. The deal closed in September 2024. The article was published in December of the same year. This is an assessment made while the Ozakis were still present, whether the 7 employees’ jobs will be sustained long-term, and whether the technical transfer will be completed, remain open questions. Mrs. Ozaki has said, “Once the handover is finished, I plan to retire and try doing what I want to do next”. The handover period itself was still in progress.

Procedures that can be taken away, and premises that can’t

There are three reproducible procedures. First, receiving the support organization’s advice not as “permission to postpone” but as “grounds to move earlier.” Moving while there was still slack was exactly what made it possible to choose the form where the sellers stayed on and handed things over. Second, switching to a nationwide platform the moment it became clear the local financial network’s response was weak. The more niche a business, the more disadvantageous it is to search by geography. Third, narrowing what was asked of the buyer down to “continued employment of the staff.” The number of conditions and the speed of closing move in inverse proportion.

The premises that can’t be reproduced are just as clear. First, the aluminum mirror processing field is described as having “almost no new entrants.” That barrier to entry produced few competitors, which is what preserved 64 years’ worth of client relationships. Applying the same procedure to a business with low entry barriers and many substitute vendors wouldn’t generate the same buyer enthusiasm. Second, Kozo was the founder’s own son, someone who knew the entire company history. Whether the person who can explain the technology and client relationships is present in the room matters more than price when selling a niche business. And the Ozakis had the health and motivation to keep working after the deal closed. In Kozo’s words: “I love this work, even when things were tough, that’s what let me keep going all this time, so as long as I’m able to work, I want to keep at it. So this time, I want to be able to contribute to President Nakayama through my own work.”

Kozo has also said this about the mirror itself as a product: “It never gets covered in the newspaper or the news, but I think there are plenty of cases where ‘having that mirror saved me.’ It’s work that protects people’s lives, work that gives people peace of mind.” A company that kept making a part that never shows up in the spotlight passed, without any fanfare, to its next owner. As a piece of M&A journalism it’s understated, but given that there are tens of thousands of small factories without successors across Japan, this understatement is precisely the standard form.

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