YOZBOSHI Inc. (Head Office: Nerima-ku, Tokyo; Representative Director: Shogo Fujii, hereinafter "YOZBOSHI") is pleased to announce that Tokyu Construction Co., Ltd. (Head Office: Shibuya-ku, Tokyo; Representative Director and President: Koji Hisada, hereinafter "Tokyu Construction") has implemented its AI document analysis service, "Connected Base".

This initiative aims to digitize PDF documents handled in Tokyu Construction's estimate-related operations, such as quotations, detailed estimates, and related budget management sheets, thereby reducing the burden of search and verification tasks and promoting the utilization of accumulated estimate-related data.

Background of Implementation

In the construction industry's estimation process, numerous documents are generated in dealings with clients and subcontractors, including quotations, detailed estimates, and budget management sheets. Even for fixed forms stipulated by the company, practical differences in appearance can arise, such as when Excel forms are converted to PDF with altered column widths or display formats.

Therefore, when confirming and searching for necessary information from estimate-related documents stored as PDFs, it is crucial to accurately read characters and numbers and organize them into data that is easy to handle in the estimation process. In particular, documents with many detail lines or those spanning multiple pages pose a challenge, as visual search and confirmation can be time-consuming, leading to a significant increase in workload.

Tokyu Construction is utilizing "Connected Base" with the objective of promoting the utilization of estimate-related data by digitizing documents accumulated in PDF format, such as subcontractor quotations.

How Connected Base is Being Used

Currently, Tokyu Construction is using "Connected Base" to analyze quotations, detailed estimates, and related estimate documents such as budget management sheets, and to digitize necessary items.

The main items targeted for extraction include names, specifications/standards, units, quantities, unit prices, amounts, and remarks. By extracting this information and organizing it into a format that is easy to use in estimation operations, the aim is to reduce the burden of data verification work that was previously performed visually on PDF files.

Moving forward, YOZBOSHI will continue to support the advancement of data utilization in estimate-related operations by improving analysis accuracy and expanding the range of target documents.

Comment from Tokyu Construction Representative

We are utilizing Connected Base with the aim of digitizing subcontractor quotations and other documents accumulated in PDF format and promoting the utilization of estimate-related data.

We particularly value its high accuracy in reading characters and numbers, which alleviates the burden of search and verification, and its contribution to future data utilization.

We intend to continue to enhance our estimate-related operations by considering the target documents and scope of application.

Overview of Connected Base

Connected Base is a service that uses AI to analyze various business documents such as quotations, invoices, purchase orders, delivery slips, and receipts, and automatically extracts and organizes necessary information.

It not only reads documents but also converts the extracted content into data that is easy to use in business operations and stores it as a database that can be utilized by the company.

For example, it can perform the following:

Automatically identify document types

Extract necessary items such as company name, date, amount, item, and quantity

Handle documents from business partners with different formats

Read detailed information spanning multiple pages

Organize extracted data into a format that is easy to use in business systems and databases

Reduce the burden of manual input and verification work

Make document data usable as internal company assets

It supports the efficiency of document digitization operations by handling non-standard documents and documents with changing layouts, which were difficult to manage with conventional OCR and RPA.

Service Site: https://connected-base.jp/

About Tokyu Construction Co., Ltd.

Company Name

Tokyu Construction Co., Ltd.

Head Office Location

1-16-14 Shibuya, Shibuya-ku, Tokyo 150-8340, Shibuya Subway Building

Representative

Koji Hisada, Representative Director and President

Founding/Establishment

Founded March 12, 1946 (Established November 11, 1959)

Capital

16.35444 billion yen (as of March 31, 2026)

Number of Employees

2,562 employees (as of March 31, 2026) *Consolidated employees: 2,911

Business Activities

General construction

URL

https://www.tokyu-cnst.co.jp/

About YOZBOSHI Inc.

YOZBOSHI Inc. aims to be an "AI platform that continuously replicates human judgment" and develops and provides the AI document analysis service "Connected Base".

It supports the digitization of non-standard documents such as quotations, invoices, purchase orders, and delivery slips into formats that are easy to utilize in business operations.

Company Name

YOZBOSHI Inc.

Location

3-22-13-102 Nakamura Kita, Nerima-ku, Tokyo

Representative

Shogo Fujii, Representative Director

Business Activities

Development and provision of the AI document analysis service "Connected Base"

URL

https://connected-base.jp/

Contact Information for Inquiries

Contact Person

Aoki

Contact

[email protected]

URL

https://yozboshi.co.jp/

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