Japan Patent Office

The Imperial College of Engineering (工部大学校, Kōbudaigakkō) was a Japanese institution of higher education that was founded during the Meiji Era. The college was established under the auspices of the Ministry of Public Works for the training of young Japanese engineers. Supporting Japan’s rapid industrialization at the end of the 19th century, the college commenced teaching in October 1873 soon after the initial cohort of teaching staff arrived from United Kingdom. The college was an immediate precursor to the establishment of the University of Tokyo’s Faculty of Engineering in 1877.

The Nippon Taiko Foundation (日本太鼓財団, Nippon taiko zaidan), formerly referred to as Nippon taiko renmei (日本太鼓連盟)　is a Japanese governmental organization and is the largest national organization of taiko performance groups active in Japan. As of 2012, the Foundation represents over 800 taiko groups, approximately 20,000 individuals, and is made up of 34 leagues corresponding to some Japanese prefectures.

The Kasumigaseki Building (霞が関ビル, Kasumigaseki biru) is a 36-story skyscraper located in Kasumigaseki, Chiyoda, Tokyo.

The Asian Development Bank Institute (ADBI) is an Asian think tank focused on identifying effective development strategies for Asia and the Pacific, and on providing support to ADB member countries in managing development challenges. It was established in Tokyo in 1996 as a subsidiary of Asian Development Bank, with initial and subsequent financing from the Government of Japan. ADBI is located on the 8th floor of the Kasumigaseki Building in Kasumigaseki, Chiyoda, Tokyo. ADBI was ranked 1st in the world among government-affiliated think tanks in the 2020 Global Go To Think Tanks Index Report by the Think Tanks and Civil Societies Program of the University of Pennsylvania.

The Cabinet Secretariat (内閣官房, Naikaku-kanbō) is an agency in the Japanese government, headed by the Chief Cabinet Secretary. It organizes the Cabinet's public relations, coordinates ministries and agencies, collects intelligence, and organizes miscellaneous other tasks for the Cabinet, including the Prime Minister's office (Kantei) and residence (Kōtei).

The Cabinet Office (内閣府, Naikaku-fu) (CAO) is an agency of the Cabinet of Japan. It is responsible for handling the day-to-day affairs of the Cabinet. The Cabinet Office is formally headed by the Prime Minister.

National Printing Bureau (国立印刷局, Kokuritsu Insatsu-kyoku) (NPB) is a Japanese governmental agency in charge of the production of Japanese paper money, Japanese yen. It also produces various other products, such as postage stamps and the official governmental gazette.

The May 15 Incident (五・一五事件, Goichigo Jiken) was an attempted coup d'état in the Empire of Japan, on May 15, 1932, launched by reactionary elements of the Imperial Japanese Navy, aided by cadets in the Imperial Japanese Army and civilian remnants of the ultranationalist League of Blood (Ketsumei-dan). Prime Minister Inukai Tsuyoshi was assassinated by 11 young naval officers. The following trial and popular support of the Japanese population led to extremely light sentences for the assassins, strengthening the rising power of Japanese militarism and weakening democracy and the rule of law in the Empire of Japan.

The Headquarters for Earthquake Research Promotion (地震調査研究推進本部, Jishin Chōsa Kenkyū Suishin Honbu) is an extraordinary organ of the Japanese Ministry of Education, Culture, Sports, Science and Technology. It was established in 1995, as a response to the damages caused by the Great Hanshin earthquake, to promote research on earthquakes in order to minimize their potential for destruction.

The Kasumigaseki Common Gate (霞が関コモンゲート, Kasumigaseki Komon Geito) is twin tower buildings located in Kasumigaseki, Chiyoda, Tokyo. The buildings consist of East Tower and West Tower. Together with the adjacent Kasumigaseki Building, the first modern office skyscraper in Japan, the twin towers are landmarks in the Toranomon/Kasumigaseki area. The buildings are directly connected to Toranomon Station of Tokyo Metro Ginza Line.

National Institute for Educational Policy Research (Japanese: 国立教育政策研究所) is a research institute located in Japanese Ministry of Education, Culture, Sports, Science and Technology. It carry out practical and basic research and surveys on education.

The Reconstruction Agency (復興庁, Fukkō-chō) is an agency of the Japanese government established on February 10, 2012 to coordinate reconstruction activities related to the 2011 Tōhoku earthquake and tsunami and Fukushima Daiichi nuclear disaster.