Ringo Gamaguchi Primær funksjon: Knepelommebok by Yutaro Kumagai

Ringo Gamaguchi Primær funksjon: Knepelommebok by Yutaro Kumagai is a highly esteemed winner of the very prestigious 2026 A' Design Award i Bronse in Bærekraftige produkter, prosjekter og grønn design Competition Category.

BronseBærekraftig produkt· 2026

Ringo Gamaguchi Primær funksjon: Knepelommebok

by Yutaro Kumagai

Client: Appcycle

A' Design Award i Bronse Winner in Bærekraftig produkt Category

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Verified Award Winner

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View at A' Design Award Press Release Award Badge

Colors

The Design

About Ringo Gamaguchi Primær funksjon: Knepelommebok

Boktekst: Dette produktet har form som et eple fordi det er laget av Ringo Tex, et syntetisk lær fremstilt av epleavfall. Dimensjonene er basert på størrelsen til et ekte lite eple, noe som understreker dets opprinnelse. Hovedtrekket er det slanke designet, som vanligvis ikke ses blant knepelommebøker. Dette ble oppnådd ved å bruke en sømteknikk som skiller seg fra konvensjonelle lommebøker, slik at strukturen forblir tynn. Hensikten var å skape et produkt som lett får plass i vesker eller lommer, slik at mynter og andre små gjenstander kan bæres elegant uten å ta mye plass.

The Recognition

About the A' Design Award i Bronse

Ringo Gamaguchi Primær funksjon: Knepelommebok er vinner av A' Design Award i Bronse, en høyt prestisjefylt anerkjennelse som tildeles enestående design som utmerker seg ved kreativitet, oppfinnsomhet og skarpsindighet. Bronsevinnere er rikt dyktige og påfallende kreative gjenstander som bekrefter designernes store erfaring, fantasi og ressurssterkhet. Ringo Gamaguchi Primær funksjon: Knepelommebok forventes å være en høyt ansett, beundret og verdsatt gjenstand som er bemerkelsesverdig profesjonell og nyskapende. Dette designet, som har vunnet A' Design Award i Bronse, rommer beste praksis innen kunst, vitenskap, design og teknologi og utmerker seg ved sin omtanke for detaljer. Ringo Gamaguchi Primær funksjon: Knepelommebok tilfredsstiller behov på en strålende måte, berører ønsker, sjarmerer følelser og vekker nysgjerrighet.

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties: This clasp purse utilizes "Ringo-Tex" a bio-based leather developed by appcycle Inc. in Aomori, Japan's largest apple producing region. Around 20,000 tons of apple residue is produced each year, much of it discarded or incinerated, contributing to CO2 emissions. Ringo-Tex upcycles this waste into synthetic leather through a low-carbon stabilization process. Molded into a 3D apple form expressing it's origin uniting symbolism and craftsmanship while inviting participation in a sustainable society.
Dimensions & Packaging: W80mm x D19mm x H90mm
Tags: Apple, Apples, Aomori, Japan, Nippon, Bio-leather, Synthetic leather, coin case, purse, clasp purse, kiss-lock, push-lock, accessory, sustainability, vegan leather, appcycle, upcycle, ethical, multifunctional bag, circulation
Production Technology: The product is built from four key materials: a clasp frame, Ringo-Tex bio-based leather, an electroformed nameplate, and lining. While the clasp is standard, molding Ringo-Tex is far more demanding than working with genuine leather and required six months of research. Stitching along the complex contours demonstrates Japanese craftsmanship. The gold seed motif, mass-produced by molding, defines the brand’s elegant identity.
Design Challenge: The greatest challenge in developing this product was achieving the bumpy texture and stitching applied to complement it. While embossing genuine leather is relatively easy due to it’s elasticity, plant-based synthetic leather is difficult to shape and sew because it lacks these properties. After six months of collaboration with multiple companies and testing we succeeded in creating the texture using a proprietary welder process. It is the product’s most charming yet challenging feature.
Research: Ringo-Tex is created by processing apple residue into power and using it as a raw material, reducing petroleum-based inputs in manufacturing by 72 - 74%. This approach lowers the dependence on finite fossil resources and decreases environmental impact. It maintains the durability and water resistance comparable to existing synthetic leather, offering a upcycled next-generation bio-based material that balances sustainability with practical performance.
Inspiration: This product is the first release of "Golden Seed" a brand created to embody appcycle's philosophy of "circulation". With the concept of "sowing regenerative seeds and facing a golden future" it expresses Aomori's identity it's apples in a cute, friendly, and accessible way. With refined construction intricate and meticulous stitching reflect the depth of Japanese craftsmanship.
Project Duration: The Project was started in 2025 Aomori and was unveiled in Tokyo in January 2026 as the debut product of the Golden Seed brand. For the next phase the team plans to launch a crowdfunding campaign followed by expansion into online platforms and retail stores both in Japan and internationally.
Operation Flow: A clasp purse with a push lock to store and carry small items such as coins, AirTags and SD cards.
Patents: Currently in the process of submitting a application for a patent.
Team Members: CEO : Kei Fujimaki
Vice President : Shohei Hatakeyama
Designer : Yutaro Kumagai
Craftsman : Fumio Sudo
Photographer : Ryokan Abe