List of Famous people named Seiji

Seiji Sakaguchi is a retired Japanese professional wrestler and judoka, Sakaguchi holds a 7th dan red and white belt in Judo. Sakaguchi was a mainstay of New Japan Pro-Wrestling (NJPW) and also competed for the World Wide Wrestling Federation and the National Wrestling Alliance. His sons are professional wrestler and mixed martial arts fighter Yukio Sakaguchi and television actor Kenji Sakaguchi. Sakaguchi currently works for New Japan as an advisor.

Seiji Mataichi is a Japanese politician and previously was a member of the House of Councillors. He is the former Chairman of the Social Democratic Party.

Seiji Tomashino is a Japanese former Nippon Professional Baseball infielder/outfielder.

Seiji Saito is a Japanese professional footballer player who currently plays for Liga de Elite side Chao Pak Kei.

Seiji Kaneko is a former Japanese football player.

Seiji Ono is a male former international table tennis player from Japan.

Seiji Ogawa is a Japanese researcher known for discovering the technique that underlies Functional Magnetic Resonance Imaging (fMRI). He is regarded as the father of modern functional brain imaging. He determined that the changes in blood oxygen levels cause its magnetic resonance imaging properties to change, allowing a map of blood, and hence, functional, activity in the brain to be created. This map reflected which neurons of the brain responded with electrochemical signals to mental processes. He was the first scientist who demonstrated that the functional brain imaging is dependent on the oxygenation status of the blood, the BOLD effect. The technique was therefore called Blood oxygenation level-dependent or BOLD contrast. Functional MRI (fMRI) has been used to map the visual, auditory and sensory regions and moving toward higher brain functions such as cognitive functions in the brain.