Okinawa Prefecture

Main City: Naha

Population: 1,434,000 people, ranking 25/47 prefectures (2015) [1]

Area: 2,271 km2 [2]

Osaka Prefecture

Main City: Osaka

Population: 8,839,000 people, ranking 3/47 prefectures (2015) [1]

Area: 1,899 km2 [2]

Report: Cluster Mapping in Japan 2016

About the ReportFollowing a first mapping attempt in 2013, the EU-Japan Centre proceeded...

Report: Cluster Mapping in Japan 2022

The EU-Japan Centre proceeded with a new screening online in order to identify new...

Report: Latest trends in biotechnology research in Japan

About the Report Japan spends consistently over 3% of its GDP on R&D, of which some 70%...

Report: Mapping of EU R&D Centres in Japan

About the Report:The fact that Japan has the third largest GDP in the world and spends 3...

Report: Nanotech Cluster and Industry Landscape in Japan

About the Report This report aims to provide an overview of the Japanese nanotech sector...

Research & Development

Japan’s reputation as an international hub for R&D has been established through heavy investment in this area, making the country a key destination for the establishment of cutting-edge R&D centres.

Saga Prefecture

Main City: Saga

Population: 833,000 people, ranking 42/47 prefecture (2015) [1]

Area: 2,439 km2 [2]

Saitama Prefecture

Main City: Saitama

Population: 7,261, 000 people, ranking 5/47 prefectures (2015) [1]

Area: 3,797 km2 [2]

Shiga Prefecture

Main City: Otsu

Population: 1,413,000 people, ranking 26/47 prefecture (2015) [1]

Area:  4,017 km2 [2]


The island of Shikoku is the smallest of Japan’s four main islands and accounts for 5% of the total land area of Japan.

Shimane Prefecture

Main City: Matsue

Population:  694,000 people, ranking 46/47 prefecture (2015) [1]

Area: 6,707 km2 [2]

Shizuoka Prefecture

Main City: Shizuoka

Population: 3,701,000 people, ranking 10/47 prefectures (2015) [1]

Area: 7,779 km2 [2]


The several policies and support programs provided by the government, the assistance of angel investors and crowdfunding and the openness of major corporations to support the start-up market, create increasing opportunities for European start-ups to flourish in the Japan market.

Tochigi Prefecture

Main City: Utsunomiya

Population: 1,975,000 people, ranking 18/47 prefectures (2015) [1]

Area: 6,408.28 km² [2]


Among Tohoku’s trading partners, Asia and North America account for 73% of all exports from the region. The main trading partners in Asia are China and South Korea.

Tokushima Prefecture

Main City full name: Tokushima

Population: 756,000 people, ranking 44/47 prefecture (2015) [1]

Tokyo Metropolis

Main City: Tokyo

Population: 13,514,000 people, ranking 1/47 prefectures (2015) [1]

Area: 2,187.66 km² [2]

Tottori Prefecture

Main City: Tottori

Population: 574,000 people ranking 47/47 prefecture (2015) [1]

Area: 3,507 km2 [2]