Nagoya Castle
Reconstructed donjon (still in concrete pending wooden rebuild) and the magnificent restored Honmaru Palace with original-method gold-leaf interiors.
Open in Maps ↗Prefecture profile · 都道府県
Aichi 愛知県
Toyota's home prefecture and Japan's industrial heart — Aichi alone generates more manufacturing output than any other prefecture and would rank as a top-30 global economy if it were a country. Nagoya is the country's fourth-largest city, and its food culture (miso-katsu, hitsumabushi, tebasaki) is fiercely local.
Capital
Nagoya
Population
7.5 million
Area
5,173 km²
Region
Chūbu
History
Aichi produced three of Japan's most consequential 16th-century unifiers in succession: Oda Nobunaga of Owari, Toyotomi Hideyoshi of Nakamura, and Tokugawa Ieyasu of Mikawa — all born within ~50 km of each other.
Nagoya Castle, completed in 1612 by Ieyasu's order, was the cradle of the Owari Tokugawa branch and a symbol of Edo-era central power. The original was destroyed by 1945 firebombing; reconstruction of its original wooden honmaru palace was completed in 2018.
Postwar Aichi was made by Toyota — the company moved its main operations from Nagoya to Toyota City (renamed for the company in 1959) and built the Aichi-Mie supplier corridor that today produces 40% of Japan's vehicles and the world's largest single-company automotive manufacturing footprint.
Economy & business
Aichi's prefectural GDP is around ¥40 trillion (US$273 billion) — Japan's 3rd-largest after Tokyo and Osaka, and the country's #1 in manufacturing output. The Toyota group anchors a vast supplier cluster (Denso, Aisin, Toyota Boshoku, JTEKT); aerospace (Mitsubishi Heavy, Kawasaki Heavy), Nagoya port shipping, and ceramics (Noritake, Toto, INAX) fill out the mix.
Key industries
Automotive
Toyota and its Aichi supplier network — Denso, Aisin, Toyota Industries, Toyota Boshoku, JTEKT — produce roughly 40% of Japan's vehicles by volume.
Aerospace
Mitsubishi Heavy Industries (Komaki/Nagoya) builds the Boeing 787 fuselage center section; the Mitsubishi SpaceJet program was based here.
Ceramics & sanitary ware
Toto, INAX (now Lixil), Noritake, Mino-yaki — Aichi's clay belt has supplied Japan's tableware and bathroom fixtures for centuries.
Port logistics
Nagoya Port is Japan's #1 cargo-tonnage port and the #1 export terminal for automobiles.
Food & beverage
Hatchō miso (Okazaki), Mizkan vinegar (Handa), Mitsukan ponzu, and the city's tebasaki/miso-katsu/hitsumabushi triad.
Notable companies
Toyota MotorDensoAisinToyota IndustriesMitsubishi Heavy Industries (Nagoya)Brother IndustriesNoritakeBank of Nagoya
Trade partners
United StatesChinaThailandAustraliaSaudi Arabia
Tourism highlights
Atsuta Shrine
One of Japan's three most sacred shrines; the supposed home of the imperial Kusanagi sword — never on public display.
Open in Maps ↗Toyota Commemorative Museum
Massive industrial museum showing the company's evolution from a loom maker to a global automaker; the live-running 1930s looms are mesmerizing.
Open in Maps ↗Inuyama Castle
Oldest original castle keep in Japan (1537); small, dramatic, perched over the Kiso River.
Open in Maps ↗Tokugawa Art Museum
Owari Tokugawa family heirlooms including the only surviving complete Genji Monogatari Emaki scroll (sometimes on display).
Open in Maps ↗Korankei Gorge
Spectacular autumn-color valley near Toyota City; one of central Japan's best maple-viewing spots.
Open in Maps ↗Did you know
Aichi's manufacturing output alone is larger than the GDP of most G20 countries — if it were a sovereign nation, it would rank around the global top 30 by GDP.
Toyota City (population ~420,000) was renamed for the Toyota Motor Corporation in 1959 — one of very few Japanese municipalities renamed for a private company.
Nagoya Port handles more cargo by weight than any other Japanese port (driven by automotive exports) and has been Japan's #1 for over 20 consecutive years.
About Aichi — Frequently asked
What is the capital of Aichi?
The capital of Aichi is Nagoya.
What region of Japan is Aichi in?
Aichi is part of the Chūbu region of Japan.
What are Aichi's main industries?
Aichi's key industries include Automotive, Aerospace, Ceramics & sanitary ware, Port logistics.
What are the top tourist attractions in Aichi?
Top attractions in Aichi include Nagoya Castle, Atsuta Shrine, Toyota Commemorative Museum, Inuyama Castle.
What major companies are based in Aichi?
Notable companies headquartered in Aichi include Toyota Motor, Denso, Aisin, Toyota Industries, Mitsubishi Heavy Industries (Nagoya).
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