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 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.

The Toranomon incident (虎ノ門事件, Toranomon Jiken) was an assassination attempt on the Prince Regent Hirohito of Japan on 27 December 1923 by communist agitator Daisuke Nanba. The incident took place at the Toranomon intersection between the Akasaka Palace and the Diet of Japan in downtown Tokyo, Japan. Crown Prince and Regent Hirohito was on his way to the opening of the 48th Session of the Imperial Diet when the young son of a member of the Diet, Daisuke Nanba, fired a small pistol at his carriage. The bullet shattered a window on the carriage, injuring a chamberlain, but Hirohito was unharmed. Nanba's attempt was motivated partly by his leftist ideology, and also by a strong desire to avenge the death of Shūsui Kōtoku, who had been executed for his alleged role in the High Treason Incident of 1910. Although Nanba claimed that he was rational (a view agreed upon in the court records), he was proclaimed insane to the public, sentenced to death on 13 November 1924, and executed two days later. Prime Minister Yamamoto Gonnohyōe took responsibility for the lapse in security and resigned along with his cabinet and a number of other high officials. He was replaced by the even more conservative Kiyoura Keigo and a cabinet made up entirely of members of the House of Peers not associated with any political party. The Toranomon Incident was cited later by the government as one of the justifications for the Peace Preservation Law of 1925.