is a former

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

ese

football Football is a family of team sports that involve, to varying degrees, kick (football), kicking a football (ball), ball to score a goal (sports), goal. Unqualified, football (word), the word ''football'' generally means the form of football t ...

player and manager.

Playing career

Koso was born in

Saga Sagas are prose stories and histories, composed in Iceland and to a lesser extent elsewhere in Scandinavia. The most famous saga-genre is the (sagas concerning Icelanders), which feature Viking voyages, migration to Iceland, and feuds between ...

on March 6, 1959. After graduating from

Tenri University is a Japanese private university in Tenri, Nara Prefecture, an independent part of the secular mission of the new religious movement Tenrikyo. It was established in February 1925 as the coeducational , enrolling 104 students, and was reorganis ...

, he joined

Matsushita Electric is a Japanese multinational electronics manufacturer, headquartered in Kadoma, Japan. It was founded in 1918 as in Fukushima by Kōnosuke Matsushita. The company was incorporated in 1935 and renamed and changed its name to in 2008. In 20 ...

(later ''Gamba Osaka'') in 1981. He retired in 1991.

Coaching career

In 1990, when Koso was a player, he became goalkeeper coach at

. He coached until 1997. In 2000, he signed as manager with his local club

Sagan Tosu is a Japanese professional Association football, football club based in Tosu, Saga, Tosu, Saga Prefecture. The club plays in the J2 League, the second tier of Japanese football, since 2025 following relegation from the J1 League in 2024 J1 Leag ...

and became a manager. He managed until 2001.

Managerial statistics

J.League Data Site
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References

External links

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1959 births Living people Tenri University alumni Association football people from Saga Prefecture Japanese men's footballers Japan Soccer League players Gamba Osaka players Japanese football managers J2 League managers Sagan Tosu managers Men's association football goalkeepers 20th-century Japanese sportsmen Sportspeople from Saga (city) {{Japan-footy-goalkeeper-stub