Terms of Service

Last Updated: September 24, 2025

Article 1 (Application)

  1. These Terms of Service (the "Terms") shall apply to all relationships between users who use the service called "denpatto" (the "Service") provided by Hiroto Isogawa (the "Company") and the Company.
  2. The Company may establish separate regulations, etc. (the "Individual Regulations") regarding the Service in addition to these Terms. Regardless of their name, these Individual Regulations shall constitute part of these Terms.
  3. If the provisions of these Terms contradict the provisions of Individual Regulations in the preceding article, the provisions of Individual Regulations shall take precedence unless otherwise specified in the Individual Regulations.

Article 2 (Registration)

  1. In the Service, applicants for registration (the "Applicants") agree to these Terms and may apply for user registration to the Company by providing certain information specified by the Company (the "Registration Information") in the manner prescribed by the Company. Upon the Company's approval of the application, the registration shall be completed.
  2. The Company may refuse the registration application of an Applicant for any of the following reasons, and shall not be obligated to disclose any reason:
    • If there are false, errors, or omissions in all or part of the Registration Information provided to the Company
    • If a minor, adult ward, person under curatorship, or person under assistance has not obtained the consent of their legal representative, guardian, curator, or assistant
    • If the Company determines that the Applicant is an antisocial force (including organized crime groups, members of organized crime groups, right-wing groups, antisocial forces, or other equivalent persons)
    • If the Company determines that the Applicant has violated the usage contract in the past or has a relationship with such a person
    • If the Company has taken measures under Article 10
    • If the Company otherwise determines that the registration is inappropriate

Article 3 (Management of User ID and Password)

  1. Users shall manage their User ID and password for the Service at their own responsibility.
  2. Users may not transfer or lend their User ID and password to third parties or share them with third parties under any circumstances. If the combination of User ID and password matches the registered information and login is achieved, the Company will consider it as use by the User who registered that User ID.
  3. The Company shall not be liable for any damage caused by the use of the User ID and password by a third party, except in cases of intentional or gross negligence on the part of the Company.

Article 4 (Service Fees and Payment Methods)

  1. Users shall pay the fees separately specified by the Company for the paid portions of the Service, in the manner specified by the Company.
  2. If Users are late in paying the service fees, they shall pay late damages at a rate of 14.6% per annum.

Article 5 (Prohibited Actions)

Users shall not engage in the following actions when using the Service:

  1. Actions that violate laws or public order and morals
  2. Actions related to criminal activities
  3. Actions that destroy or interfere with the functions of the Company's or other users' or third parties' servers or networks
  4. Actions that may interfere with the operation of the Company's services
  5. Actions that collect or accumulate personal information about other users
  6. Unauthorized access or attempts thereof
  7. Actions that impersonate other users
  8. Actions that directly or indirectly provide benefits to antisocial forces in connection with the Company's services
  9. Actions that infringe on the intellectual property rights, portrait rights, privacy, honor, or other rights or interests of the Company, other users, or third parties
  10. Posting or transmitting content that includes or is judged by the Company to include the following expressions:
    • Excessively violent expressions
    • Explicit sexual expressions
    • Expressions that lead to discrimination based on race, nationality, creed, sex, social status, origin, etc.
    • Expressions that induce or encourage suicide, self-harm, or drug abuse
    • Other expressions that include antisocial content and cause discomfort to others
  11. Actions for the following purposes or those that the Company determines have such purposes:
    • Sales, advertising, promotion, solicitation, or other commercial purposes (except those approved by the Company)
    • Sexual acts or obscene acts
    • Meeting or dating with strangers of the opposite sex
    • Harassment or defamation of other users
    • Purposes intended to cause disadvantage, damage, or discomfort to the Company, other users, or third parties
    • Other purposes of using the Service for purposes different from the intended use of the Service
  12. Religious activities or solicitation to religious groups
  13. Other actions that the Company deems inappropriate

Article 6 (Suspension of Service Provision, etc.)

  1. The Company may suspend or interrupt the provision of all or part of the Service without prior notice to Users if the Company determines that any of the following reasons exist:
    • When performing maintenance, inspection, or updating of computer systems related to the Service
    • When it becomes difficult to provide the Service due to force majeure such as earthquakes, lightning, fires, power outages, or natural disasters
    • When computers or communication lines are stopped due to accidents
    • When the Company determines that it is difficult to provide the Service for other reasons
  2. The Company shall not be liable for any disadvantage or damage suffered by Users or third parties due to the suspension or interruption of Service provision.

Article 7 (Ownership of Rights)

  1. Intellectual property rights related to the Service belong to the Company or the rightful holder who has licensed the Company, and permission to use the Service based on these Terms does not mean permission to use the intellectual property rights of the Company or the rightful holder related to the Service.
  2. Users grant the Company a worldwide, perpetual, royalty-free, sublicensable, and transferable license to use, copy, distribute, create derivative works, display, and perform the posting data.
  3. Users shall not exercise moral rights of the author against the Company or persons who have succeeded to or been granted rights from the Company.

Article 8 (Restrictions and Deletion of Registration)

  1. The Company may, without prior notice, delete posting data, restrict the use of all or part of the Service for Users, or delete registration as a User if the User falls under any of the following:
    • Violation of any provision of these Terms
    • Discovery of falsehood in Registration Information
    • Default on payment obligations
    • No response for a certain period to communications from the Company
    • No use of the Service for a certain period since the last use
    • Other cases where the Company determines that the use of the Service is inappropriate
  2. The Company shall not be liable for any damage caused to Users by actions taken by the Company based on this Article.

Article 9 (Withdrawal)

Users may withdraw from the Service through the withdrawal procedures specified by the Company.

Article 10 (Disclaimer of Warranty and Exemption from Liability)

  1. The Company does not explicitly or implicitly guarantee that the Service is free from defects (including defects related to safety, reliability, accuracy, completeness, effectiveness, fitness for a particular purpose, security, errors, bugs, or infringement of rights).
  2. The Company shall not be liable for any damage caused to Users arising from the Service, except in cases of intentional or gross negligence on the part of the Company. However, this disclaimer does not apply if the contract between the Company and the User regarding the Service (including these Terms) constitutes a consumer contract as defined in the Consumer Contract Act.
  3. Even in cases provided in the proviso of the preceding paragraph, the Company shall not be liable for damage arising from special circumstances (including cases where the Company or the User foresaw or could have foreseen the occurrence of damage) among damages caused to Users due to default or tort resulting from the Company's negligence (excluding gross negligence). In addition, compensation for damages caused to Users due to default or tort resulting from the Company's negligence (excluding gross negligence) shall be limited to the amount of usage fees received from the User in the month in which the damage occurred.
  4. The Company shall not be liable for any transactions, communications, or disputes that arise between Users and other Users or third parties in connection with the Service.

Article 11 (Changes to Service Content, etc.)

The Company may change the content of the Service or discontinue the provision of the Service without notifying Users, and shall not be liable for any damage caused to Users as a result.

Article 12 (Changes to Terms of Service)

  1. The Company may change these Terms at any time without requiring individual consent from Users in the following cases:
    • When the change to the Terms is in the general interest of Users
    • When the change to the Terms does not contradict the purpose of the Service usage contract and is reasonable in light of the necessity of the change, the appropriateness of the content after the change, and other circumstances related to the change
  2. When changing these Terms based on the preceding paragraph, the Company shall notify Users in advance of the change to the Terms, the content of the Terms after the change, and the effective date.

Article 13 (Handling of Personal Information)

The Company shall appropriately handle personal information obtained through the use of the Service in accordance with the Company's "Privacy Policy."

Article 14 (Notifications or Communications)

Notifications or communications between Users and the Company shall be made in the manner specified by the Company. The Company shall consider the currently registered contact information as valid and send notifications or communications to that contact information unless the User has notified the Company of a change in accordance with the method separately specified by the Company, and these shall be deemed to have reached the User at the time of transmission.

Article 15 (Special Provisions Regarding Google Services)

  1. This service uses Google login and Gmail sending functions. Users agree to comply with Google's Terms of Service and Privacy Policy.
  2. The only Gmail permission requested is gmail.send, and it is used solely to send emails from the user's own account. This service never reads, deletes, searches, or filters the user's Gmail.
  3. All email contents and recipient addresses sent through this service are created and transmitted solely under the user's responsibility. We shall bear no responsibility for such contents.

Article 16 (Prohibition of Transfer of Rights and Obligations)

Users may not transfer or provide as collateral to third parties their position in the usage contract or rights or obligations based on these Terms without the prior written consent of the Company.

Article 17 (Governing Law and Jurisdiction)

  1. The interpretation of these Terms shall be governed by Japanese law.
  2. In the event of any dispute regarding the Service, the court having jurisdiction over the location of the Company's head office shall have exclusive agreed jurisdiction.

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