Hack Day 2019 UI/UX Award
Dec 2019Yahoo Japan Corp.
EMBLE is an application that can convert drawings created in the browser into embroidery data.
Watch demo
Daijiro here — entrepreneur turning ideas into products, from code to design.
Cross-functional team size
Patents filed
Experience
Manage cross-functional teams under ten people, running recurring 1:1s to support growth.
Product manager experience across sub-10 person squads covering planning, engineering, and design.
Ships AI-assisted prototypes in days to test concepts with stakeholders and real users.
Specs and builds systems that respect technical constraints thanks to hands-on engineering roots.
Side gig with Yamasaki Mark (Saikai City) delivering on-site My Sewing orders that auto-generate cloud stitch data.
Zigzag stitches on a spiral path that paint tonal gradients by density; image processing fused with embroidery data tooling.
Awards
Selected competitions that celebrate product experiments and newsroom innovation.
Yahoo Japan Corp.
EMBLE is an application that can convert drawings created in the browser into embroidery data.
Watch demoPublic Transportation Open Data Council
Swite is a sightseeing companion that detects your location and recommends nearby spots worth exploring.
Award siteYahoo Japan Corp.
Shake connects fans of the same characters or subculture using abstracted color patterns only insiders recognize.
Event recapGlobal Editors Network
Part of the Yahoo! JAPAN × BuzzFeed Japan team that built TasKAL, an innovative newsroom prototype at GEN Editors Lab.
Programme detailsPatents
Selected listings that document my ongoing patent activity.
Unexamined Patent Application / JP 2025-052101 A
Assignee: SoftBank Group Corp.
Representative: Sakai International Patent Office
Application No.: JP 2023-160881
Filing Date: 2023-09-25
Publication Date: 2025-04-07
Abstract: Custom AI picture books that translate parental values into tailored stories with lesson-specific adjustments.
Claim (excerpt): An AI picture book system that generates unique stories from parental directives, shapes desired lessons, and personalizes each book.
IPC: G06Q 50/10
FI: G06Q50/10
Unexamined Patent Application / JP 2020-095634 A
Assignee: Yahoo Japan Corporation
Representative: Sakai International Patent Office
Application No.: JP 2018-234832
Filing Date: 2018-12-14
Publication Date: 2020-06-18
Abstract: Interactive editing pipeline that reacts to captured body-motion data to transform the background in real time.
Claim (excerpt): An information processing device with an acquisition unit that captures body motion data and an editing unit that alters background imagery based on that motion.
IPC: G06T 13/80, A63F 13/814, A63B 69/00
FI: G06T13/80 B, A63F13/814, A63B69/00 514
Career
A snapshot of the teams and companies that shaped my product and engineering practice.
EMBLE LLC
Feb 2023 – Present
3 yrs
LY Corp.
Oct 2023 – Present
2 yrs
Yahoo Japan Corp.
Oct 2016 – Sep 2023
6 yrs 11 mos
NTT Software
Apr 2012 – Sep 2016
4 yrs 6 mos
Drop a note about the ideas you're excited to build—I'll get back to you within a few days.