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.
セディエ・デザイン は、兵庫県小野市を拠点とするデザインスタジオです。人とものごとの関係や在り方を丁寧に読み解き、抽出した本質をシンプルな構造・造形へ再構築し、人の営みや学びへ還元するデザインプロセスを重視しています。デザインを志したとき、いつでも明るく大きな声で語り合い、永く愛用する椅子に囲まれて暮らす、陽気なイタリアの人々に出逢いました。彼らの「暮らしを楽しむ」風景と、暮らしに寄り添う椅子がデザインの原点となり、イタリア語で椅子を意味する「SEDIE」を屋号としました。
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 |
| 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 |
| 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 |

















