Tennis: Nishikori

Tennis: Nishikori

Former world No. 4 Kei Nishikori of Japan plays against compatriot Kaichi Uchida in the quarterfinals of the men's singles at the Yokohama Keio Challenger tennis tournament in Yokohama, near Tokyo, on Nov. 21, 2025. Nishikori returned to competition after a hiatus of about three months due to a back injury.

Tennis: Nishikori

Tennis: Nishikori

Former world No. 4 Kei Nishikori of Japan plays against compatriot Kaichi Uchida in the quarterfinals of the men's singles at the Yokohama Keio Challenger tennis tournament in Yokohama, near Tokyo, on Nov. 21, 2025. Nishikori returned to competition after a hiatus of about three months due to a back injury.

Tennis: Nishikori

Tennis: Nishikori

Former world No. 4 Kei Nishikori of Japan plays against compatriot Kaichi Uchida in the quarterfinals of the men's singles at the Yokohama Keio Challenger tennis tournament in Yokohama, near Tokyo, on Nov. 21, 2025. Nishikori returned to competition after a hiatus of about three months due to a back injury.

Tennis: Nishikori

Tennis: Nishikori

Former world No. 4 Kei Nishikori of Japan plays against South Korea's Shin San Hui in the second round of the men's singles at the Yokohama Keio Challenger tennis tournament in Yokohama, near Tokyo, on Nov. 20, 2025. Nishikori returned to competition after a hiatus of about three months due to a back injury.

Tennis: Nishikori

Tennis: Nishikori

Former world No. 4 Kei Nishikori of Japan plays against South Korea's Shin San Hui in the second round of the men's singles at the Yokohama Keio Challenger tennis tournament in Yokohama, near Tokyo, on Nov. 20, 2025. Nishikori returned to competition after a hiatus of about three months due to a back injury.

Tennis: Nishikori returns to competition

Tennis: Nishikori returns to competition

Former world No. 4 Kei Nishikori of Japan plays against compatriot Taisei Ichikawa in the first round of the men's singles at the Yokohama Keio Challenger tennis tournament in Yokohama, near Tokyo, on Nov. 18, 2025, returning to competition after a hiatus of about three months due to a back injury.

Tennis: Nishikori returns to competition

Tennis: Nishikori returns to competition

Former world No. 4 Kei Nishikori of Japan plays against compatriot Taisei Ichikawa in the first round of the men's singles at the Yokohama Keio Challenger tennis tournament in Yokohama, near Tokyo, on Nov. 18, 2025, returning to competition after a hiatus of about three months due to a back injury.

Tennis: Nishikori returns to competition

Tennis: Nishikori returns to competition

Former world No. 4 Kei Nishikori of Japan plays against compatriot Taisei Ichikawa in the first round of the men's singles at the Yokohama Keio Challenger tennis tournament in Yokohama, near Tokyo, on Nov. 18, 2025, returning to competition after a hiatus of about three months due to a back injury.

Tennis: Nishikori returns to competition

Tennis: Nishikori returns to competition

Former world No. 4 Kei Nishikori of Japan plays against compatriot Taisei Ichikawa in the first round of the men's singles at the Yokohama Keio Challenger tennis tournament in Yokohama, near Tokyo, on Nov. 18, 2025, returning to competition after a hiatus of about three months due to a back injury.

Keio Electric Railway sign and logo

Keio Electric Railway sign and logo

Keio Electric Railway sign and logo=September 2,2025,Tokyo

Keio Electric Railway sign and logo

Keio Electric Railway sign and logo

Keio Electric Railway sign and logo=September 2,2025,Tokyo

Keio Electric Railway sign and logo

Keio Electric Railway sign and logo

Keio Electric Railway sign and logo=September 2,2025,Tokyo

Keio Electric Railway sign and logo

Keio Electric Railway sign and logo

Keio Electric Railway sign and logo=September 2,2025,Tokyo

European Commission president in Tokyo

European Commission president in Tokyo

European Commission President Ursula von der Leyen (L) is pictured after receiving an honorary doctorate from Keio University in Tokyo on July 23, 2025, during her visit to Japan for a summit with Prime Minister Shigeru Ishiba.

European Commission president in Tokyo

European Commission president in Tokyo

European Commission President Ursula von der Leyen speaks at her honorary doctorate award ceremony at Keio University in Tokyo on July 23, 2025, during her visit to Japan for a summit with Prime Minister Shigeru Ishiba.

Ex-U.S. Deputy Secretary of State Armitage dies

Ex-U.S. Deputy Secretary of State Armitage dies

Former U.S. Deputy Secretary of State Richard Armitage makes a speech at Keio University in Tokyo on June 8, 2018. A longtime Asia hand who had close connections with Japan, Armitage died on April 13, 2025, at the age of 79.

2025 World Exposition in Osaka

2025 World Exposition in Osaka

Photo taken on April 3, 2025, shows a Signature Pavilion section called "Better Co-Being" created by Keio University Professor Hiroaki Miyata at the site of the 2025 World Exhibition in Osaka starting April 13.

World Exposition in Osaka

OSAKA, Japan, April 3 Kyodo - Video taken on April 3, 2025, shows a Signature Pavilion section created by Keio University Professor Hiroaki Miyata at the site of the 2025 World Exposition in Osaka, unveiled to the media ahead of the event's start on April 13. (Kyodo)

World Exposition in Osaka

World Exposition in Osaka

Photo taken on April 3, 2025, shows a Signature Pavilion section created by Keio University Professor Hiroaki Miyata at the site of the 2025 World Exposition in Osaka, unveiled to the media ahead of the event's start on April 13.

Japan: Tropical Storm Shanshan Brings Torrential Rains To Kanto Region 8

Tropical Storm Shanshan has brought torrential rains to Kanto region Thursday, August 29 through Friday, August 30 as it slowly moved across western Japan.

International Criminal Court Judge Akane

International Criminal Court Judge Akane

International Criminal Court President Tomoko Akane gives a lecture at Keio University in Tokyo on June 12, 2024.

Rüütel Keio Viks. Paide Vallimägi

Rüütel Keio Viks. Paide Vallimägi

02.05.2024, Paide Ehtsas rüütlirüüs Keio Viks andis Paide Vallimäel esimese ajalooteemalise tunni õpilastele. Foto: Dmitri Kotjuh / Järva Teataja

U.S. ambassador to U.N. in Tokyo

U.S. ambassador to U.N. in Tokyo

U.S. Ambassador to the United Nations Linda Thomas-Greenfield answers a student's question on artificial intelligence at Keio University in Tokyo on April 18, 2024.

Signage and logo of Keio Department Store

Signage and logo of Keio Department Store

Signage and logo of Keio Department Store =Date:April 8, 2024, Place: Tokyo

Signage and logo of Keio Department Store

Signage and logo of Keio Department Store

Signage and logo of Keio Department Store =Date:April 8, 2024, Place: Tokyo

Baseball: Japan's national high school tournament

Baseball: Japan's national high school tournament

Keio infielder Katsuji Kiyohara, son of former baseball star Kazuhiro Kiyohara who was arrested in 2016 for drug offenses, makes a pinch-hit appearance in a quarterfinal game against Okinawa Shogaku during the national high school baseball championship at Koshien Stadium in Nishinomiya in Hyogo Prefecture, western Japan, on Aug. 19, 2023.

Baseball: Japan's national high school tournament

Baseball: Japan's national high school tournament

Keio infielder Katsuji Kiyohara (C), son of former baseball star Kazuhiro Kiyohara who was arrested in 2016 for drug offenses, is pictured during the closing ceremony of the national high school baseball championship at Koshien Stadium in Nishinomiya in Hyogo Prefecture, western Japan, on Aug. 23, 2023. (Pool photo)

Baseball: Japan's national high school tournament final

Baseball: Japan's national high school tournament final

Players of Keio high school line up in front of supporters in the stands after beating Sendai Ikuei high school 8-2 in Japan's summer national high school baseball championship final at Koshien Stadium in Nishinomiya in Hyogo Prefecture, western Japan, on Aug. 23, 2023.

Baseball: Japan's national high school tournament final

Baseball: Japan's national high school tournament final

Players of Keio high school run toward their supporters in the stands after beating Sendai Ikuei high school 8-2 in Japan's summer national high school baseball championship final at Koshien Stadium in Nishinomiya in Hyogo Prefecture, western Japan, on Aug. 23, 2023.

Baseball: Japan's national high school tournament final

Baseball: Japan's national high school tournament final

Players of Sendai Ikuei high school look dejected after losing to Keio high school in Japan's summer national high school baseball championship final at Koshien Stadium in Nishinomiya in Hyogo Prefecture, western Japan, on Aug. 23, 2023.

Baseball: Japan's national high school tournament final

Baseball: Japan's national high school tournament final

Players of Keio high school celebrate after beating Sendai Ikuei high school 8-2 in Japan's summer national high school baseball championship final at Koshien Stadium in Nishinomiya in Hyogo Prefecture, western Japan, on Aug. 23, 2023.

Baseball: Japan's national high school tournament final

Baseball: Japan's national high school tournament final

Players of Keio high school celebrate after beating Sendai Ikuei high school 8-2 in Japan's summer national high school baseball championship final at Koshien Stadium in Nishinomiya in Hyogo Prefecture, western Japan, on Aug. 23, 2023.

Baseball: Japan's national high school tournament final

Baseball: Japan's national high school tournament final

Players of Keio high school celebrate after beating Sendai Ikuei high school 8-2 in Japan's summer national high school baseball championship final at Koshien Stadium in Nishinomiya in Hyogo Prefecture, western Japan, on Aug. 23, 2023.

Baseball: Japan's national high school tournament final

Baseball: Japan's national high school tournament final

Players of Keio high school celebrate after beating Sendai Ikuei high school 8-2 in Japan's summer national high school baseball championship final at Koshien Stadium in Nishinomiya in Hyogo Prefecture, western Japan, on Aug. 23, 2023.

Baseball: Japan's national high school tournament final

Baseball: Japan's national high school tournament final

Players of Keio high school celebrate after beating Sendai Ikuei high school 8-2 in Japan's summer national high school baseball championship final at Koshien Stadium in Nishinomiya in Hyogo Prefecture, western Japan, on Aug. 23, 2023.

Japan health minister tries robot designed for patients

Japan health minister tries robot designed for patients

Japanese health minister Katsunobu Kato sits in a robot developed to help patients move as he visits Keio University Hospital in Tokyo on July 24, 2023.

Japan health minister tries robot designed for patients

Japan health minister tries robot designed for patients

Japanese health minister Katsunobu Kato sits in a robot developed to help patients move as he visits Keio University Hospital in Tokyo on July 24, 2023.

Chat GPT Conversational AI, exchanging opinions with students

Video taken from a Kyodo News on June 12,2023,shows Sam Altman, CEO of the US start-up company Open AI, which developed the interactive artificial intelligence (AI) "Chat GPT," exchanged opinions with students at Keio University's Mita Campus in Tokyo.

OpenAI CEO Sam Altman

OpenAI CEO Sam Altman

Sam Altman, CEO of U.S.-based ChatGPT developer OpenAI, attends an open dialogue with students at Keio University in Tokyo on June 12, 2023.

OpenAI CEO Sam Altman

OpenAI CEO Sam Altman

Sam Altman (R), CEO of U.S.-based ChatGPT developer OpenAI, attends an open dialogue with students at Keio University in Tokyo on June 12, 2023.

S. Korean President Yoon in Japan

S. Korean President Yoon in Japan

South Korean President Yoon Suk Yeol delivers a speech at Keio University in Tokyo on March 17, 2023. (Pool photo)

S. Korean President Yoon in Japan

S. Korean President Yoon in Japan

South Korean President Yoon Suk Yeol delivers a speech at Keio University in Tokyo on March 17, 2023. (Pool photo)

NATO chief in Japan

NATO chief in Japan

NATO Secretary General Jens Stoltenberg makes a speech at a Keio University campus in Tokyo on Feb. 1, 2023.

Abe to be hospitalized for 3-4 days

Abe to be hospitalized for 3-4 days

TOKYO, Japan - Toshifumi Hibi, head of gastroenterology at Keio University Hospital speaks at a news conference at the hospital in Tokyo on Sept. 13, saying Prime Minister Shinzo Abe, who abruptly announced his resignation the previous day, has been suffering from stomach irritations, pain, poor appetite and other symptoms centering on the duodenum and needs to stay in hospital for ''at least three or four days.''

Prime Minister Abe admitted to Tokyo hospital

Prime Minister Abe admitted to Tokyo hospital

TOKYO, Japan - Members of the media gather in front of Keio University Hospital in Tokyo on Sept. 13 where Prime Minister Shizo Abe was admitted.

Prime Minister Abe admitted to Tokyo hospital

Prime Minister Abe admitted to Tokyo hospital

TOKYO, Japan - Prime Minister Shinzo Abe sits behind the front-passenger seat as he leaves the prime minister's office in Tokyo on Sept. 13 to receive a medial examination at Keio University Hospital. Later in the day, Abe was admitted to the hospital.

Prime Minister Abe admitted to Tokyo hospital

Prime Minister Abe admitted to Tokyo hospital

TOKYO, Japan - Prime Minister Shinzo Abe's wife Akie arrives at Keio University in Tokyo on Sept. 13 where Abe went to receive a medical examination.

WWII Japanese navy bunker under Keio campus shown to press

WWII Japanese navy bunker under Keio campus shown to press

TOKYO, June 26 Kyodo - Keio Senior High School teacher Takeshi Akuzawa briefs the press on an underground tunnel at Keio University's Hiyoshi campus in Yokohama, southwest of Tokyo, on June 23, 2015. The maze-like tunnel was used by the Imperial Japanese Navy in the final months of World War II.

Rugby World Cup arrives at Keio University campus in Japan

Rugby World Cup arrives at Keio University campus in Japan

TOKYO, Japan - Debbie Jevans, chief executive of England Rugby 2015, shows off the Webb Ellis Cup on Keio University's rugby field in Yokohama west of Tokyo on May 23, 2014, as part of a publicity blitz for next year's Rugby World Cup competition in England.

Japanese economic experts in New York

Japanese economic experts in New York

NEW YORK, United States - Koichi Hamada (R), Japanese Prime Minister Shinzo Abe's economic policy adviser, and Heizo Takenaka, professor at Keio University in Japan, attend an event at the Japan Society in New York on April 30, 2014.