1990　Graduated from Bunka Fashion College.
1991　Joined KENZO in Paris as a trainee.
1992　Joined Michiko Japan London Studio Co.,Ltd.
　　　　as designer assistant.
1995　Joined VISION NETWORK Co.,Ltd. in Japan as
　　　　assistant designer of the "KYOZON" brand.
　　　　Joined Vin Rose Co.,Ltd. as chief designer of
　　　　"New Bond St." brand.
1997　Joined Hiroko Koshino Design Office Inc.
1998　Started participating in TOKYO COLLECTION
2000　Participated in PARIS SURMODE Exhibition of
　　　　'00-'01 AUTUMN & WINTER COLLECTION. 　
2003　Became a professor at Kyoto Seika University's faculty of
　　　　design, depart of architecture.
2004　Released "SOFA STUDIO + YUMA KOSHINO NEST SOFA" in
　　　　collaboration with KOSUGA & Co.,LTD.
2005　Designed Osaka Gas Co., Ltd.
　　　　Designed MK Co., Ltd.(Known as MK Taxi) uniform.
　　　　Designed costumes for a movie based on a Japanese
　　　　animation.
　　　　Established Yuma Koshino Associates Inc.
2006　Released Yuma Koshino line of school uniform from
　　　　OGO Co.,Ltd.
　　　　Designed uniforms for The Westin Osaka.
　　　　Hiroko Koshino International Inc. became licensee for the
　　　　“Yuma Koshino”women’s wear starting from the
　　　　'07 SPRING & SUMMER COLLECTION.
2007　Participated in JAPAN FASHION WEEK in TOKYO of
　　　　'07-'08 AUTUMN & WINTER COLLECTION.
　　　　Participated in JAPAN FASHION WEEK in TOKYO of
　　　　'08 SPRING & SUMMER COLLECTION.
2009　Participated in JAPAN FASHION WEEK in TOKYO of
　　　　'09-'10 AUTUMN & WINTER COLLECTION.
　　　　Released Yuma Koshino line of wedding dress from
　　　　SO-JIN co.,ltd.
2011　SHOWA DRESS CO.,LTD. became licensee for the
　　　　"Yuma Koshino" women’s black formal wear
　　　　starting from the '11 AUTUMN & WINTER COLLECTION.

　　　　Expanding YUMA KOSHINO women’s wear
　　　　at major department store in Japan. 　　　　

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