Nippon Taiko Foundation

The Japan Patent Office (特許庁, Tokkyochō, JPO) is a Japanese governmental agency in charge of industrial property right affairs, under the Ministry of Economy, Trade and Industry. The Japan Patent Office is located in Kasumigaseki, Chiyoda, Tokyo and is one of the world's largest patent offices. The Japan Patent Office's mission is to promote the growth of the Japanese economy and industry by administering the laws relating to patents, utility models, designs, and trademarks. (Copyright affairs are administered by the Agency for Cultural Affairs.)

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 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 Embassy of the United States in Tokyo represents the United States in Tokyo, Japan. Along with consulates in Osaka, Nagoya, Sapporo, Fukuoka, and Naha, the Embassy provides assistance to American citizens and residents who live in Japan and issues visas to Japanese nationals, and legal residents in Japan who wish to visit or immigrate to the United States. The current ambassador is Rahm Emanuel, who assumed office on March 25, 2022.The current embassy building was designed by César Pelli and Norma Merrick Sklarek, and was completed in 1976. It succeeded the previous embassy building built on the same property in 1931 by Harold Van Buren Magonigle and Antonin Raymond. The Ambassador's official residence, built together with the then new embassy in 1931, was one of the first buildings specifically built by the US as an Ambassador's residence. It served as the historic meeting place between Emperor Hirohito and General Douglas MacArthur in 1945. In January 2001, the U.S. Department of State authorized the Residence of the U.S. Ambassador to Japan to be labeled an important cultural asset.In August 2021, while visiting Japan for the Tokyo Olympics, First lady Jill Biden dedicated a room in the U.S. ambassador's residence to the late U.S. Sen. Daniel K. Inouye and his wife, Irene.

The Japan Oil, Gas and Metals National Corporation (独立行政法人石油天然ガス・金属鉱物資源機構, Sekiyu ten'nen gasu kinzoku kōbutsu shigen kikō, JOGMEC), is a Japanese government Independent Administrative Institution which was created in 2004 when the former Japan National Oil Corporation merged with the former Metal Mining Agency of Japan.

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

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 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.

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).

Hotel Okura Tokyo (ホテルオークラ東京, Hoteru Ōkura Tōkyō) is a luxury hotel opened in 1962 in Minato, Tokyo, Japan. It is operated by Okura Hotels and was a member of The Leading Hotels of the World. The historic main wing was demolished in 2015, with a modern replacement on the site opened in 2019, rebranded as The Okura Tokyo.

The Prime Minister's Official Residence is the official workplace and residence of the Prime Minister of Japan. It is commonly referred to as Sōri Daijin Kantei (総理大臣官邸), Shushō Kantei (首相官邸), or simply Kantei (官邸). Located at 2-3-1 Nagata-chō, Chiyoda-ku, Tokyo 100–8968, it is diagonally adjacent to the National Diet Building.The term Kantei is used as a metonym for the office of the Prime Minister of Japan and for the Prime Minister's advisors and administration in general. In addition to being the principal office and residence of the Prime Minister, the building also serves as the principal office of the Chief Cabinet Secretary and their Deputy, the location of Cabinet meetings, and is also the location of a national crisis management center.

Okura Museum of Art (大倉集古館, Ōkura Shūkokan) is a museum in Tokyo, Japan.The museum opened in Toranomon, Tokyo in 1917 to house the collection of pre-modern Japanese and East-Asian Art amassed since the Meiji Restoration by industrialist Ōkura Kihachirō. The museum collection includes some 2,500 works, among which are three National Treasures and twelve Important Cultural Properties.The museum is located within the grounds of the Hotel Okura Tokyo. Closed for renovation since April 1, 2014, the museum reopened alongside the rebuilt hotel in 2019.