RAG-type AI Chatbot for Corporations "chai+": Now Offering FAQ-type Chatbot Functionality Equipped with Patented Technology

DEFiDE Inc. (Akasaka 2-4-6, Minato-ku, Tokyo; Representative Director: Tetsuya Yamamoto), an AI/DX consulting firm, announces that its corporate RAG-type AI chatbot "chai+" has acquired Patent No. 7823852, titled "Information processing apparatus, program, and method for returning an answer sentence to a user-selected question sentence."

We have begun offering an "FAQ-type chatbot" feature equipped with this patented technology. This function fundamentally solves AI utilization challenges in industries where accuracy and consistency of answers are strictly required, such as finance, healthcare, public administration, and customer service.

Development Background | The "Answer Variability" Problem of RAG-type Generative AI

Generative AI (RAG-type), including ChatGPT, has the characteristic that the expression of its answers changes each time, even for the same question. While this is a strength in creative tasks, it becomes a critical issue in the following industries and applications:

Examples of scenes where RAG-type generative AI is not suitable

・Investment trust explanations by financial institutions → Legally, every word of the explanation must be unified under the Financial Instruments and Exchange Act.

・Medication guidance by medical institutions → If explanations to patients differ each time, it directly leads to medical accidents and litigation risks.

・Guidance at administrative counters → Providing fair and consistent information to citizens is an administrative duty.

・Customer service → If answers vary among operators, it can cause customer complaints.

To address these issues, DEFiDE Inc. has advanced its unique technology development and obtained rights as Patent No. 7823852.

Patent No. 7823852 | Mechanism of the FAQ-type Chatbot

This patented technology consists of four core functions that solve the problems of conventional RAG-type generative AI.

・ Automatic Q&A Generation from Training Data

By simply uploading existing documents such as PDF, PowerPoint, Excel, Word, TXT, and URLs, the AI automatically generates question and answer pairs (Q&A). Unlike traditional FAQ systems, there is no need for manual registration of each Q&A.

・ Q&A Generation According to the "Attributes" of the Questioner and Answerer

By simply setting specific situations (attributes) in advance, such as "a financial institution's asset management representative answering questions from an elderly person," Q&A optimized for that scenario is automatically generated. The content and expression are automatically adjusted to suit the target audience, such as for experts, the general public, or the elderly.

・ "Related Q&A Chain" by Semantic Score

The AI automatically scores the semantic relevance between generated Q&As. When a user views one Q&A, related questions and answers are successively presented. Users do not need to type text each time and can explore information deeply through selection.

・ Published After Human Check and Approval Flow

Q&As generated by AI are published only after review, revision, and approval by a person in charge. This eliminates the risk of "AI unilaterally publishing incorrect information" and ensures that only intended Q&As are reliably provided.

▶ Maximum Effect of This Patented Technology

The combination of these four functions fundamentally resolves the "answer variability" issue that was a problem with conventional RAG types. It becomes possible to provide exactly the same answer word for word for the same question every time. This is a technological foundation that allows for the first full-scale introduction of generative AI into operations under strict legal regulations regarding answer accuracy and consistency, such as the Financial Instruments and Exchange Act, Medical Care Act, and Administrative Information Disclosure Ordinance.

Comparison with Conventional RAG

Comparison Item

Conventional RAG Chatbot

chai+ Patented FAQ Type

Answer Consistency

Answer expressions change each time, even for the same question

Always provides the same answer for the same question

Q&A Generation

Manual registration of FAQs is required

Automatically generates Q&A from training data

Attribute Setting

Difficult to consider attributes of questioner/answerer

Generates Q&A according to the attributes of the questioner/answerer

Related Q&A Chain

User needs to manually input each time

Automatically suggests related Q&A by semantic score

Publication Approval Flow

AI-generated results are published as is

Published after human check, revision, and approval

Suitable Industries

Can be used across industries, but accuracy management is difficult

Optimal for industries requiring high accuracy management such as finance, healthcare, and public administration

Main Use Cases

・ Financial Institutions (banks, securities, insurance): Explanations of investment trusts and insurance products, compliance-related Q&A

・ Medical Institutions and Pharmacies: Medication guidance, outpatient information, automation of patient Q&A

・ Government and Local Authorities: Counter guidance for citizens, Q&A for benefits and procedures

・ Manufacturers and Retailers: Consistent answers for product specifications, warranties, and return policies

・ Customer Service Departments: Automate FAQ reference for operators, standardize response quality

Comment from Representative Director, Tetsuya Yamamoto

"Generative AI is a powerful tool, but in the fields of finance, healthcare, and public administration, there was strong resistance to 'different answers appearing each time,' hindering its adoption. This patented technology was developed precisely to break down that barrier.

Q&A is automatically generated by simply uploading training data, and then published after human review. The recognition of this entire flow as a patent socially proves the reliability of our technology, and we are confident that chai+ will be utilized in even more industries in the future."

Patent and Service Overview

Patent Number: Patent No. 7823852

Name of Invention: Information processing apparatus, program, and method for returning an answer sentence to a user-selected question sentence

Patent Information (J-PlatPat): https://www.j-platpat.inpit.go.jp/c1801/PU/JP-7823852/15/ja

Target Service: Corporate RAG-type AI chatbot "chai+"

Provision Method: SaaS (Cloud) | (Basic Plan) ~ / 2-week free trial available

Supported Training Data Formats: PDF, PowerPoint, Excel, Word, TXT, URL, etc.

Service URL: https://lp.chatbothub.ai/

Company Overview

Company Name: DEFiDE Inc.

Location: Akasaka 2-4-6, Minato-ku, Tokyo

Business Activities: Strategic AI Consulting / Generative AI Infrastructure Construction Support / AI Agent & BPR Platform (SmartOps) / RAG-type AI Chatbot (chai+) / HR Tech (JOB Scope)

URL: https://www.defide-ix.com/

chai+: https://lp.chatbothub.ai/

AI Future Talks: https://www.defide-ix.com/ai/ai-future-talks

Recotto: https://lp.recotto.ai/

SmartOps: https://smartops.jp/

JOB Scope: https://jobscope.ai/

Generative AI Work Value Score Analysis: https://jobscope.ai/ai-survey/

HR Capital Dashboard (JOBScope ISO30414): https://jobscope.ai/hrcapital/

JOB Scope Magazine: https://marketing.jobscope.ai/media/