IP Library Granted Patent US 12,548,653
Granted Patent B2
US 12,548,653 · App. 18/471,344 · Granted Feb 10, 2026

Medical system and computer program

Inventors: Ryuta Kokubo (Tokyo, JP); Takeru Umeda (Tokyo, JP); Yoichi Sakurai (Tokyo, JP); Kazuhisa Hayakawa (Tokyo, JP)
Assignee: NTT DOCOMO BUSINESS, Inc.
G16H20/10H04L9/3213H04L9/50
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Quick Facts
Patent No.
US 12,548,653
App. No.
18/471,344
Granted
Feb 10, 2026
Kind
B2
Abstract

A medical system includes an issuer configured to issue data of an electronic prescription relating to a medicine prescribed to a patient and instruct a history management system for recording a token delivery history to issue a token that is information of a delivery target relating to the electronic prescription, and a controller configured to instruct the history management system to deliver the token to a terminal of a recipient of the medicine.

Claims (29)

1 . A medical system comprising:

a key information storage configured to store a private key and a public key corresponding to the private key;

an issuer configured to issue data of an electronic prescription relating to a medicine prescribed to a patient, store the electronic prescription in an electronic prescription management device, and instruct a history management system for recording a token delivery history to issue a token that is information of a delivery target relating to the electronic prescription, the history management system being configured using one or more information processing devices and being different from the electronic prescription management device; and

a controller configured to generate a wallet address for the medical system based on the stored private key, generate a wallet address for a terminal of a recipient of the medicine based on the public key of the terminal, instruct the history management system to deliver the token from the wallet address for the medical system to the wallet address for the terminal, and transmit, by using the wallet address of the terminal, the token including an identification information for acquiring the electronic prescription stored in the electronic prescription management device to the terminal, in response to the token delivery history from the wallet address for the medical system to the wallet address for the terminal being registered in the history management system.

2 . The medical system according to claim 1 , wherein the history management system is configured using blockchain.

3 . The medical system according to claim 1 , wherein the controller instructs the history management system to deliver the token to a terminal authenticated by an authentication approval system is configured using one or more information processing devices and that performs authentication using authentication information among a plurality of terminals.

4 . The medical system according to claim 1 , wherein the controller instructs the history management system to deliver the token to an agent terminal, which is a terminal to which the token has been delivered from a user terminal used by the patient, among a plurality of terminals.

5 . The medical system according to claim 4 , wherein the history management system records information indicating that the token has been delivered to the agent terminal.

6 . The medical system according to claim 1 , wherein the token includes a hash value of the electronic prescription data.

7 . The medical system according to claim 2 , wherein the controller instructs the history management system to deliver the token to a terminal authenticated by an authentication approval system that performs authentication using authentication information among a plurality of terminals.

8 . The medical system according to claim 2 , wherein the controller instructs the history management system to deliver the token to an agent terminal, which is a terminal to which the token has been delivered from a user terminal used by the patient, among a plurality of terminals.

9 . The medical system according to claim 3 , wherein the controller instructs the history management system to deliver the token to an agent terminal, which is a terminal to which the token has been delivered from a user terminal used by the patient, among a plurality of terminals.

10 . The medical system according to claim 2 , wherein the token includes a hash value of the electronic prescription data.

11 . The medical system according to claim 3 , wherein the token includes a hash value of the electronic prescription data.

12 . The medical system according to claim 4 , wherein the token includes a hash value of the electronic prescription data.

13 . A non-transitory computer-readable recording medium recording a computer program for causing a computer to perform processes, the processes comprising:

storing a private key and a public key corresponding to the private key;

issuing data of an electronic prescription relating to a medicine prescribed to a patient, storing the electronic prescription in an electronic prescription management device, and instructing a history management system for recording a token delivery history to issue a token that is information of a delivery target relating to the electronic prescription, the history management system being configured using one or more information processing devices and being different from the electronic prescription management device;

generating a wallet address for the medical system based on the stored private key;

generating a wallet address for a terminal of a recipient of the medicine based on the public key of the terminal;

instructing the history management system to deliver the token from the wallet address for the medical system to the wallet address for the terminal; and

transmitting, by using the wallet address of the terminal, the token including an identification information for acquiring the electronic prescription stored in the electronic prescription management device to the terminal, in response to the token delivery history from the wallet address for the medical system to the wallet address for the terminal being registered in the history management system.

14 . A method for a medical system, the method comprising:

storing a private key and a public key corresponding to the private key;

issuing data of an electronic prescription relating to a medicine prescribed to a patient, storing the electronic prescription in an electronic prescription management device, and instructing a history management system for recording a token delivery history to issue a token that is information of a delivery target relating to the electronic prescription, the history management system being configured using one or more information processing devices and being different from the electronic prescription management device;

generating a wallet address for the medical system based on the stored private key;

generating a wallet address for a terminal of a recipient of the medicine based on the public key of the terminal;

instructing the history management system to deliver the token from the wallet address for the medical system to the wallet address for the terminal; and

transmitting, by using the wallet address of the terminal, the token including an identification information for acquiring the electronic prescription stored in the electronic prescription management device to the terminal, in response to the token delivery history from the wallet address for the medical system to the wallet address for the terminal being registered in the history management system.

Assignments (2)
CHANGE OF NAME Recorded Dec 19, 2025
From: NTT COMMUNICATIONS CORPORATION
To: NTT DOCOMO BUSINESS, INC.
Reel/Frame 073800/0678 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 21, 2023
From: KOKUBO, RYUTA; UMEDA, TAKERU; SAKURAI, YOICHI; HAYAKAWA, KAZUHISA
To: NTT COMMUNICATIONS CORPORATION
Reel/Frame 064979/0126 →
Priority Claims (1)
JP 2021-052203 · Mar 25, 2021 · national
Continuity (2)
Continuation PCTJP2022014098 · Mar 24, 2022
Related Publication 20240013879A1 · Jan 11, 2024
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