Otsuka Pharmaceutical Brand Guidelines: Naruto 1921, Pocari Sweat and a Two-O Symbol

A ten-person chemical works on the Naruto salt pans.

Otsuka Pharmaceutical is younger than the name it carries. The company says it was established in 1964, but the group behind it began more than four decades earlier. According to the history published by Otsuka Holdings, the group’s parent, Busaburo Otsuka set up Otsuka Seiyaku Kogyo-bu in 1921 in Naruto, in Tokushima Prefecture. It was a maker of chemical raw materials with ten employees, and its first product was magnesium carbonate, made from bittern, the liquid left behind when salt is taken from salt pans.

The group’s history places that start in a regional economy. Tokushima, it says, had been one of Japan’s ten largest cities in the early Meiji period, with an indigo industry and salt and pharmaceutical trades, and firms around the Seto Inland Sea were turning salt-pan bittern into chemicals for Japan’s new industries. Otsuka’s products were mostly pharmacopoeia raw materials, which needed certification for use in medicines; the group dates its stress on quality to that work, and quotes a motto written by its founder, a calligrapher: “Quality is the lifeblood of the factory. Packaging is a part of quality.”

The war years are covered briefly in the group’s own account. The business grew to make several pharmacopoeia raw materials, the history says, and was designated a military-supply factory; in 1940 it was renamed Otsuka Pharmaceutical Factory. The sources used for this guide do not say whether forced or conscripted labour was used at the plant.

After the war the founder’s eldest son, Masahito Otsuka, took over. In 1946 the company entered the pharmaceutical business with intravenous solutions, the group says, and in 1953 it launched its first over-the-counter product, Oronine Ointment. Further companies followed: Otsuka Chemical was spun off in 1950, Otsuka Warehouse was founded in 1961 and Taiho Pharmaceutical in 1963.

Pharmaceuticals and nutraceuticals.

Otsuka Pharmaceutical was founded in 1964 to develop original technologies and medicines, the group says, and it became the group’s core company. A year later it launched Oronamin C Drink, which the group calls a perennial best-seller. Its first plant, the Tokushima Factory, began operating in 1970; its first drug discovery research institute opened in Tokushima in 1971; and in 1973 its research institute adopted the line that became the whole group’s philosophy: “Otsuka-people creating new products for better health worldwide.” By 1974 it had built a headquarters in Kanda, Tokyo.

The company describes two businesses, pharmaceuticals and what it calls nutraceuticals, a blend of nutrition and pharmaceuticals; it says the split was formally declared in 1982. The consumer side is the more visible one. Pocari Sweat was launched in 1980 and Calorie Mate in 1983; later came SOYJOY bars in 2006 and the cosmetics lines the company calls “cosmedics.” The company says its Saga Factory began in 1986 as a Pocari Sweat plant, its Takasaki Factory in 1989 made Pocari Sweat and FIBE-MINI, and its Fukuroi Factory, completed in 1996, makes mainly Pocari Sweat. In August 2026 it said it was sponsoring the Asian Games in Aichi-Nagoya through what it calls “the global brand POCARI SWEAT.”

On the pharmaceutical side, the company names Abilify (aripiprazole), an antipsychotic, as the drug that carried it abroad. It says it signed a co-development and co-marketing agreement for the drug with Bristol-Myers Squibb in 1999; Abilify was launched in the United States in 2002 and in Japan in 2006. The company also lists Samsca, Rexulti and Deltyba, a tuberculosis drug launched in Europe and Japan in 2014, and an alliance with H. Lundbeck signed in 2011.

The group has also bought companies outside Japan. Its timeline records Ridge Vineyards in California joining in 1986, Pharmavite, the maker of Nature Made vitamins, in 1989, Crystal Geyser water in 1990, the French mineral-water company ALMA in 2008, and Astex Pharmaceuticals in 2013.

Design and documentation.

Japanese drug makers tend to present themselves through places and archives as much as through products. Research campuses carry much of the weight: Chugai began full operation of its Chugai Life Science Park Yokohama, in Kanagawa, in 2023, and earlier ran a research laboratory at Tsukuba, in Ibaraki, from 2001 to 2005; Otsuka Pharmaceutical opened an Osaka Research Center for Drug Discovery in 2022, according to the companies’ own timelines. Photographs of laboratories, glass façades and scientists at screens recur across their websites and reports.

History is the other recurring theme. Several of these companies trace their roots to the Meiji and Taisho eras, and their anniversary pages lean on archive photographs of early shopfronts, factories and founders, including the old medicine-trading streets of Doshomachi in Osaka. Chugai marked its 100th anniversary in March 2025 and the Otsuka group its centenary in 2021, and both publish detailed chronologies of how their names and symbols changed.

The visual language is mostly cool and clean. Blue and white dominate packaging and corporate marks: Chugai moved its corporate colour from green to blue in 2002, and Otsuka describes the large O of its group symbol in “Otsuka BLUE.” Alongside prescription medicines, many of these firms sell consumer products, such as health drinks, eye drops and nutrition bars, that put their names on pharmacy and convenience-store shelves; Otsuka’s Pocari Sweat, launched in 1980, is one example.

Trade shows complete the picture: booths at international partnering events such as BIO and at CPHI Japan show the companies to licensing partners and suppliers rather than to shoppers. This guide sets out what can be checked about each company — its founding, its owners, its war years and its symbols — and marks clearly what rests only on the company’s own word.

A large blue O and a small red one.

The holding company came late. Otsuka Holdings was established in 2008 to manage the whole group, and the group companies its website lists include Otsuka Pharmaceutical, Otsuka Pharmaceutical Factory, Taiho Pharmaceutical and Otsuka Chemical. Its shares began trading in Tokyo on 15 December 2010; CHEManager reported that day that the offering was the largest on record globally for a pharmaceuticals firm, and that investors had weighed the group’s reliance on Abilify. The group marked its 100th anniversary in 2021, counting from the Naruto works.

The visual identity is set out on the company’s website. The Otsuka Group corporate symbol, created in 2007, takes the initial O as its motif. A large O, which the company says represents the sky, is drawn in gradations of what it calls “Otsuka BLUE,” standing for “openness,” “freedom,” “intelligence” and “future”; a smaller O in “Otsuka RED” stands for the company’s energy. The two shapes are offset “in balance,” and the name is set, in the company’s words, in “an open and friendly typeface.” The company presents the symbol as a way to unify how the group communicates as it grew abroad.

The company also uses objects to explain itself. At its Human Resource Development Institute in Tokushima, which it calls the birthplace of the group, it keeps three “monuments”: a giant tomato tree grown in water rather than soil, a bent giant cedar trunk balanced inside the entrance to its Vega Hall, and a garden of polished granite stones that appear to float. The company says they stand for its two guiding ideas, jissho, or actualisation, and sozosei, or creativity. The company’s timeline names factories in Tokushima, Saga, Takasaki and Fukuroi in Japan.

For a design guide, Otsuka Pharmaceutical shows how one company can carry a prescription-drug business and a shelf of consumer drinks under a single, simple symbol. Compare Takeda and Taisho Pharmaceutical, two more Japanese drug makers in this series. For this guide we use a sky blue, a deep navy and a small red with a sans, an unofficial interpretation; no product or logo is reproduced.

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