November 9, 2023
Y4.com Co., Ltd

Undertaking of the Demonstration Project for the 'Digital Health Support System for Pregnant andPostpartum Women, etc.' in Himeji City～Provided as a Convenient Health Management Tool for Preconception Care～
Y4.com Co., Ltd. (Headquarters: Chiyoda Ward, Tokyo, CEO: Yukinao Ajima) has been awarded thecontract for the demonstration project of the 'Digital Health Support System for Pregnant andPostpartum Women, etc.' in Himeji City, Hyogo Prefecture, which is adopted under TYPE 3 of the Digital
Garden City Nation Concept. The system aims to allow pregnant and postpartum women toautonomously manage their health without burden by displaying vital data automatically collected fromwearable devices and other sources on an app.
Background and Purpose
In Himeji City, we aim to provide high-quality support based on various data throughout the pregnancy
and child-rearing periods. As part of these efforts, we offer services that support self-managed healthcare for pregnant and postpartum women to help them confidently approach childbirth and manage
stress before and after delivery.
Recently, we have introduced the GENKIMRU platform as a system for Himeji City residents, wherewearable devices are loaned out and the vital data automatically collected from them are visualized in anapp, allowing users to easily check their own health condition without any hassle. The Vitalgain app
enables user authentication through My Number Card (voluntary) and, with the user’s consent (opt-in),we plan to establish API integration with the data linkage infrastructure, known as 'Urban OS', within thisfiscal year. This will potentially enable the provision of data to government, medical institutions, andprivate sectors in the future.
Details of the Implementation"Project Duration: From November 1, 2023, to March 31, 2024
Expected Number of Participants: 40
Target Participants: Individuals from pre-pregnancy to those in child-rearing stages

"Features of the Program
In this program, in addition to the health management platform GENKIMIRU and the Vitalgain app, we
use wearable devices, body composition scales, vitamin and mineral meters, wrist blood pressure
monitors, and ketone measuring devices. The data from each ICT device are accumulated on theGENKIMIRU server via the integrated Vitalgain app. Based on vital data such as calorie intake, calorie
expenditure, stress levels, major nutrients, sleep quality, and heart rate, the program provides functions
for behavioral change, such as delivering individual alerts and advice. Furthermore, future plans include
data linkage with the Himeji City Urban OS, offering various management tools, and preparing diverse
output methods.

Moving forward, we will continue to work towards the realization of various initiatives, including solving
challenges faced by local governments, as well as planning and proposing concepts for smart cities andsupercities[Company Profile of Y4.com Co.,Ltd.][Location] Otemachi First Square East Tower 4F, 1-5-1 Otemachi, Chiyoda-ku, Tokyo[Established] April 2012
President and CEO Yukinao Ajima[Business Activities] Healthcare services, import and sales of IoT devices[URL] https://y-4.jp/Inquiries Regarding This MatterY4.com Administration Department
E-mail：info@y-4.jp