Fuji, Shizuoka, 1946.

The Takagi name comes from a family business at the foot of Mount Fuji. Japanese Wikipedia says Takagi Ichizō founded the Takagi Press works in Fuji, Shizuoka in April 1946, and that it was reorganised as a joint-stock company, Takagi Press Kōgyō, in 1952. The press shop moved into gas appliances in 1956, the article says, beginning with kitchen gas stoves, and moved its factory to the site that is still its head office. In 1957 it began selling gas appliances under the trademark “Purpose,” opening sales offices in Tokyo, Nagoya and Osaka, and in 1959 it set up an electrical division for electronic measuring and control equipment.

The company took the name most English-speaking customers know in 1968. According to Japanese Wikipedia it was renamed Takagi Sangyō — Takagi Industrial Co., Ltd. — on 21 February that year. Over the following decades it added a die-casting works in 1981, a software division in 1982 and a new plant in Fujinomiya in 1992. In the late 1990s it even made personal computers and handheld PDAs under the Purpose name, a business the article says it left in 2002 and finished supporting in 2007.

At home, the company’s core became household heating equipment. Japanese Wikipedia describes it as a maker of gas and oil water heaters, bathroom heater-dryers and floor-heating systems that circulate hot water, alongside press work, industrial machinery and electronic controls. Its head-office factory in Fuji makes water heaters, the article says, while the Fujinomiya plant builds industrial machinery. In the United States the company traded as Takagi, and its American website still dates the brand’s heritage to 1952, the year the press works became a company.

Irvine, California, and a joint venture in 2010.

Takagi’s North American business was built around tankless gas water heaters made in Japan and sold from Irvine, California. In June 2010 that business took a new shape. Contractor magazine reported on 17 June 2010 that A. O. Smith Corporation and Takagi Industrial Co. Ltd. of Fuji-city, Shizuoka were establishing a joint venture to market and manufacture tankless water heaters in North America, with the transaction expected to close in the third quarter. Japanese Wikipedia names the venture TAKAGI-A.O.Smith Tankless Water Heater Company LLC and dates it to June 2010.

The terms gave A. O. Smith the running of the brand. According to the reports in Contractor and Contracting Business, A. O. Smith would take over management of Takagi’s existing North American sales and distribution organisation, keep Takagi’s North American headquarters in Irvine, and “assume responsibility for the Takagi brand in the U.S. and Canada.” A. O. Smith would also offer a full line of tankless gas water heaters under its own brands “in association with the Takagi brand.” Takagi, the reports said, was then making its full line of residential and commercial gas tankless models in Japan.

Ajita G. Rajendra, then president of A. O. Smith Water Products Company, was quoted calling the venture “an important investment” and “a rare opportunity to combine Takagi’s well-known brand and world class tankless technology with the strong brands, customer relationships and extensive distribution of A. O. Smith.” English Wikipedia records the same step from A. O. Smith’s side, saying Takagi Industrial’s North American operations were acquired in 2010, and it lists Takagi among the brand names A. O. Smith operates today. The Takagi brand in the United States and Canada has been run by A. O. Smith since 2010.

The Japanese parent changed its own name the following year. Japanese Wikipedia says Takagi Industrial became Purpose Co., Ltd. on 1 November 2011, adopting the name of the trademark it had used since 1957, and adopted the brand slogan “Hirameki o egao ni,” roughly “turning inspiration into smiles.” The company remains privately held and headquartered in Fuji, the article says.

Design and documentation.

The brands in this group make the equipment behind water at home: pool pumps, filters and cleaners, above-ground pools, water-softening and filtering systems, and the tanks and tankless units that heat water for kitchens and bathrooms. Brands in these trades sit at many different points in the market, from names that began as small family workshops to labels that now belong to much larger industrial groups, and the same badge can be sold through a pool shop, a plumbing wholesaler or a big retailer.

Because the products are often installed out of sight, in a pump room, a basement or a utility cupboard, a brand’s identity in these fields tends to be carried by its name, its labels and its packaging rather than by the product’s shape. Ownership can change several times while a familiar badge stays on the box, which makes the plain questions worth asking: who started the brand, who owns it now, and where its products are made.

Each guide separates what independent, dated sources record from what the company says about itself, and marks plainly what rests only on the company’s own word.

A swapped red and blue, a black emblem and a grey body.

The clearest recorded design detail belongs to the Japanese parent’s mark. Japanese Wikipedia says the company had used a brand logo since about 1992, and that when it was renamed Purpose in November 2011 the logo was revised: the positions of its red and blue were swapped, and the red became an oval stretching out like a flame, meant to stand for an “insatiable spirit of inquiry.” The emblem fitted to the body of its products, the article adds, became a black square with the mark and lettering in silver, and the logos on water heaters and their remote controls were to be updated in turn.

Colour also shows up in the product housings. Japanese Wikipedia says the company’s 2012 Harmony series of condensing gas water heaters adopted a body colour called “Harmonious Grey,” that the 2018 Harmony Series AXiS switched its body colour to Pantone Cool Gray 2, and that a 2023 update, AXiS FLash, changed the body colour to “Flash Gold.”

In North America the Takagi brand speaks mainly to the trade. Its American website says Takagi heaters are sold exclusively by plumbing wholesalers and contractors, and it lists regional offices in California, Tennessee and New Jersey, with an office in Canada. The site is organised around sizing guides, installation requirements, venting and multi-unit and commercial rack systems, including an Easy-Link system for linking heaters, and it names models such as the T-H1 and T-K3. It presents its products with the phrase “Quality Products and Innovation Since 1952.”

For a design guide, Takagi shows a Japanese family name travelling further than the company that made it: the maker in Fuji now trades as Purpose, while the Takagi badge carries on across North America under A. O. Smith’s management. Compare it with A. O. Smith, which has run the brand there since 2010, and with State Water Heaters, another name in the same family. For this guide we use red, blue and black with a geometric sans, an unofficial interpretation; no product or logo is reproduced.

Keep Takagi’s identity on hand — save it to a board in the Made Good inspiration library.