About

SEDIE DESIGN is a design studio based in Ono, Hyogo, Japan. We focus on understanding the relationships between people, objects, and everyday life. By carefully observing these connections, we extract their essence, reconstruct them into simple forms and structures, and bring them back into the context of human life and learning. This process defines our approach to design. When I first aspired to become a designer, I encountered the cheerful people of Italy — people who spoke openly and lived surrounded by chairs they had cherished for many years. Their way of enjoying everyday life, and the presence of chairs that quietly accompany it, became the origin of my design philosophy. Our name, “SEDIE,” meaning chairs in Italian, carries that spirit within it.

Outline

Trade name SEDIE DESIGN Co., Ltd.
Establishment 23 April 1998
Address 1159-2 Shimogishicho, Ono, Hyogo 675-1344, Japan
Tel +81 794-64-2355
Email info@sedie.co.jp
商号 有限会社セディエ
設立 1998年4月23日
所在地 〒675-1344 兵庫県小野市下来住町 1159-2
Tel 0794-64-2355
Email info@sedie.co.jp

Member

CEO / Designer

Mitsushige Sumimoto

1955 Born in Ono, Hyogo, Japan
1978 Graduated from the Faculty of Engineering, Kobe University
1981 - 1997 Worked at a design studio
1998 Founded SEDIE DESIGN Co., Ltd.

代表取締役 / デザイナー

住本 光繁

1955 兵庫県小野市生まれ
1978 神戸大学 工学部 卒業
1981 - 1997 デザイン事務所 勤務
1998 有限会社セディエ 設立

Director / Designer

Yusuke Sumimoto

1986 Born in Ono, Hyogo, Japan
2010 Graduated from the Department of Product Design, Tama Art University
2010 - 2017 Worked at a baby products manufacturer
2017 Joined SEDIE DESIGN Co., Ltd.

役員 / デザイナー

住本 佑介

1986 兵庫県小野市生まれ
2010 多摩美術大学 生産デザイン学科 プロダクトデザイン専攻 卒業
2010 - 2017 ベビー用品メーカー 勤務
2017 SEDIE DESIGN 入社

Clients

ADACHI TEXTILE | Agricultural Corporation Abiki | OGURI CORPORATION | OKAMOTO FURNITURE | ONO MOTOR SCHOOL | KUBOTA WOOD WORK | THE KNOT PLACE | Combi | GH SALAD | DAIHACHIMANRO | NPO Soil | Sony Life Insurance | Hashizume SS | People | MURAKAMI KOUSAKUSHO | FLOWER MORIMOTO | UM:KOGYO | Ono Kindergarten | etc.

足立織物株式会社 | 農事組合法人あびき | 大栗紙工株式会社 | オカモトカグ | 株式会社小野自動車教習所 | 株式会社久保田木工所 | THE KNOT PLACE | コンビ株式会社 | GH SALAD | 株式会社大八万楼 | NPO法人そいる | ソニー生命保険株式会社 | 有限会社橋詰信石油 | ピープル株式会社 | 株式会社村上工作所 | 有限会社フラワー森本 | 株式会社ユーエム工業 | 小野市立おの幼稚園 | など

Awards

2026 Q1 DESIGN COMPETITION 2025, EXCELLENCE PRIZE stage
2025 MadeForMums Toy Award, Best sensory toy, Bronze 1curiosity Carousel
2025 MadeForMums Toy Award, Best Toddler Toy, Silver 1curiosity Lantern
2025 Junior Design Awards, Gold 1curiosity Nook
2025 Junior Design Awards, Gold 1curiosity Lantern
2025 Junior Design Awards, Gold 1curiosity Carousel
2025 IMT 3rd term, Design partner layer note
2025 Absolutely Mama Awards, Bronze Medal 1curiosity Lantern
2025 Independent Toy Awards, Gold Medal 1curiosity Lantern
2022 SDGs Logo Mark Design Competition, Grand Prize SDGs ONO
2011 GOOD DESIGN AWARD Silky TSURUGI
2011 GOOD DESIGN Hyogo Silky TSURUGI
2009 GOOD DESIGN AWARD Silky GENKI TEMAGARI
2009 GOOD DESIGN Hyogo Silky GENKI TEMAGARI
2008 GOOD DESIGN Hyogo Silky YAMABICO
2005 GOOD DESIGN AWARD Silky HIBIKI
2003 GOOD DESIGN AWARD Silky GUN-FIGHTER
2003 GOOD DESIGN AWARD Silky BiGBOY
1998 GOOD DESIGN AWARD Silky GINGA
1996 GOOD DESIGN AWARD Silky super accel 21
1993 GOOD DESIGN AWARD Silky KENZO
1991 GOOD DESIGN AWARD Silky ZORIN
1987 Cooper-Hewitt Museum’s Permanent Collection Silky accel
1987 Selected, '87 Design Forum Exhibition Silky accel