An engine workshop, an earthquake and a name shortened in 1972.

Tohatsu is a Japanese maker of outboard motors, small boats and portable fire pumps, with its head office in Itabashi, Tokyo. The company’s own chronology begins in April 1922, when Masuzo Takata opened the Takata Motor Research Institute in Kyobashi, in what is now the Ginza district of central Tokyo. Japanese Wikipedia describes Takata as a specialist in internal-combustion engines, and the company presents its beginning as a small venture that dreamed of making engines.

The early years were unsettled. The company history says the workshop moved to Komagome in September 1923 after the Great Kanto Earthquake, took the name Takata Motor Kigyosha in 1925 and opened a factory in Honjo, in today’s Sumida ward. A Tokyo factory followed at Osaki in 1930. In October 1932 the business was reorganised as a joint-stock company, Takata Motor Seisaku, and the company still gives 20 October 1932 as its formal date of establishment. In 1937 it built a factory in Shimura, in Itabashi, and in April 1939 it changed its name to Tokyo Hatsudoki, “Tokyo Engine” in plain English.

The company chronology says the plant was designated an army and navy managed factory in 1940 and that a new factory was opened in Okaya, Nagano, in 1944. Production stopped in August 1945. After the war the company moved its head office back to Kyobashi in 1947 and began producing a portable fire pump, the VC-50, in October 1949. Small engines for two-wheelers followed: a 78cc engine called the TFL in 1950 and the Puppy, an auxiliary engine for bicycles, in 1952.

Motorcycles made the name famous in Japan. Japanese Wikipedia says that in the Tokyo Hatsudoki years the company was known as a motorcycle maker selling under the Tohatsu brand, and English Wikipedia says the company built motorcycles from 1950 until it ended production in 1964. The company’s own chronology records that in February 1964 it filed for corporate reorganisation. It moved its head office to Azusawa in Itabashi in July 1968, the reorganisation was concluded in December 1971, and in June 1972 Tokyo Hatsudoki formally changed its name to Tohatsu Corporation, taking the short brand name under which its motorcycles had been sold as the name of the company itself.

From a 1.5-horsepower outboard to Blue Wings.

The outboard business is now the centre of the brand. The company history dates the start of outboard production to September 1956, with a 1.5-horsepower model called the OB. English Wikipedia lists the uses Tohatsu outboards have served since then as commercial fishing, military work, marine transport, surf life saving, recreation and racing, and the company itself divides its business into marine products on one side and fire and disaster-prevention equipment on the other.

The company’s model names are short codes rather than words. The chronology records the M70A in 1982, the M120A and M140A in 1990, and the four-stroke MFS25B and MFS30B in June 2005. A two-stroke MX series followed in 2011, the MFS40 and MFS50A in 2014, the MFS75A, MFS90A and MFS115A in June 2020, and production of the MFS140A began in August 2021. In 1998, the company says, it signed a technical agreement with the Australian company Orbital on the direct-injection two-stroke technology it called TLDI. Tohatsu also builds small boats; the chronology lists a centre-console TF-20II in 1993 and the TF-23X in 2019.

The visual identity is unusually well dated. The company chronology says that in September 2017 Tohatsu adopted a new logo, which it calls “Tohatsu Blue Wings”, together with a new tagline, “Feel the Wind™”. The tagline is still printed on the company’s Japanese home page, next to a section headed “Our Story”, and the trademark symbol is part of how the company writes it. The name Blue Wings tells the reader what the mark is meant to suggest; the company’s own copy elsewhere uses the image of flight, inviting recruits to “fly with us”.

The centenary added a second, temporary layer. The chronology records that the company unveiled a 100th-anniversary logo in January 2022 and marked its centenary in April 2022. Its corporate site still links to a dedicated history feature titled “TOHATSU History 1922-2022”, which describes the business as having started out as a venture company dreaming of producing engines. On its global portal the company splits its world into two plain halves, Marine Products and Fire Pumps & Others, each with a North American site run by Tohatsu America Corporation and an international site.

Design and documentation.

Engine makers and boat builders share a waterfront but tell their stories in different ways. An outboard or sterndrive maker speaks through a cowl, a badge and a run of model numbers that can stay in use for decades, while a boatyard speaks through hull shapes, deck layouts, gelcoat colours and the name lettered along the side. Many of these companies began as small workshops near a lake or a coast; some are still run by the families that started them, and others now sit inside large groups that also make vehicles, engines or other leisure products.

Because a boat can outlast several changes of owner, and a famous name can move from one factory town to another, the useful questions are simple ones: who founded the business, who owns it now, where the boats or engines are actually built, and how the names and graphics have shifted over time.

Each guide in this group sets what independent, dated sources record beside what the company says about itself, and marks clearly where a fact rests only on the maker’s own account.

Komagane, partners and engines under other names.

Tohatsu is a Tokyo company. Its corporate profile lists its head office in Itabashi, sales offices in Osaka and Tokyo, a single factory in Komagane, Nagano, and three related companies: Tohatsu Marine Corporation, Techno Kasei and Tohatsu America Corporation. The same profile lists its businesses as outboard motors for small craft and leisure, boats, portable fire pumps, small fire trucks, refrigeration units for transport vehicles and a property-management arm. The company’s research and development centre, completed in August 2018, sits in Kawaguchi, Saitama.

The outboard factory has moved within Nagano. The chronology says Tohatsu Marine Corporation ended production in Okaya in December 2004 and moved its production base to Komagane in January 2005; the company’s list of sites now gives the Komagane factory and Tohatsu Marine the same address there. The company set up Tohatsu America Corporation as its sales company in the United States in May 2002.

Much of the brand’s reach comes through partners. The company chronology says Tohatsu Marine was founded in February 1988 as a joint venture with the American group Brunswick, and English Wikipedia says the joint venture was set up to produce outboards for Mercury Marine, Brunswick’s engine business, adding that some smaller Mercury outboards are rebranded Tohatsus. Japanese Wikipedia says Tohatsu and Mercury began jointly developing outboards in the 15 to 30 horsepower range in 2014. English Wikipedia also records a 2011 agreement under which Tohatsu built small engines sold with Evinrude decals, and says the outboards sold in North America by Nissan Marine were Tohatsus.

The arrangement has also run the other way. The company chronology records an OEM agreement with Honda in July 2013 for the supply of Honda four-stroke outboards of 60 horsepower and above, and English Wikipedia says the larger Tohatsu four-strokes sold in North America after 2013 were rebadged Hondas, while the smaller engines are designed and built by Tohatsu. In September 2018, the chronology adds, Tohatsu signed an OEM agreement with Yanmar’s marine arm to supply pleasure boats.

For a design guide, Tohatsu shows how a dated logo, a named mark and a trademarked tagline can give a century-old engine maker a clear identity, while plain model codes carry the product range. Compare Mercury Marine, its joint-venture partner since 1988, and Evinrude, which sold Tohatsu-built small engines from 2011. For this guide we use Wing blue, cowl silver and pump red with a sans, an unofficial interpretation; no product or logo is reproduced.

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