Software Service Terms of Use

Effective Date: July 30, 2026

These Software Service Terms of Use (the “Terms”) set out the conditions governing software, license activation, updates, and related services provided by KINGEN CO., LTD. (“Company,” “we,” “us,” or “our”).

1. Application of These Terms

1. These Terms apply to every individual, company, and other organization (each a “User”) that uses software and related services provided by the Company through its website or by any other method (collectively, the “Service”).
2. By registering for a trial, purchasing, installing, activating, or using the Service, the User agrees to these Terms.
3. Any product-specific conditions displayed on a product page, at checkout, or in the “Product-Specific Conditions” at the end of these Terms form part of these Terms. If there is a conflict, the product-specific conditions prevail.
4. The handling of personal data and other information in connection with the Service is governed by our Privacy Policy.

2. Eligibility and Authority

1. An individual User must be at least 18 years old and legally capable of entering into a contract.
2. A person under 18 years of age must obtain the prior consent of a legal representative before purchasing or using the Service.
3. A person purchasing or using the Service on behalf of a company or other organization represents that the person has authority to bind that organization to these Terms.

3. Registration Information and Communications

1. The User must provide accurate and current information when registering for a trial, purchasing, and activating a license.
2. The User must keep the email address used for the purchase capable of receiving messages and must promptly notify the Company of any change.
3. The Company may send important Service notices to the registered email address or publish them on its website.

4. Free Trial

1. A free trial may be available for products identified in the Product-Specific Conditions.
2. The free-trial period begins when the first online trial registration for the applicable product is successfully completed.
3. Unless the Company agrees otherwise in advance, only one free trial is permitted per User and per product. A User must not repeatedly obtain trials by using different email addresses, device information, or other means.
4. Trial registration alone does not result in an automatic charge. The User must separately complete a purchase to obtain a paid license.
5. When the free-trial period expires, the Service enters the restricted mode described in Section 11.

5. Paid License, Fees, and Contract Formation

1. The fee, term, device limit, and other paid-license conditions are displayed at checkout and in the Product-Specific Conditions.
2. A paid contract is formed when the User accepts these Terms and the displayed transaction conditions at checkout and payment is successfully completed.
3. Payments, invoices, and payment-method management are processed using services provided by Stripe, Inc. and its affiliates.
4. Terms imposed by a card issuer or other payment provider also apply to the relationship between the User and that provider.
5. The User is responsible for internet, communications, hardware, and other costs necessary to use the Service.

6. Term and Automatic Renewal

1. An annual license is valid for one year from the date on which the initial payment is successfully completed.
2. Unless the User cancels before the next renewal date, the annual license automatically renews for another one-year period, and the annual renewal fee is charged to the registered payment method.
3. The renewal fee and billing date are shown at checkout, in the Stripe customer portal, or in a notice from the Company.
4. If a renewal payment fails, Stripe or another payment provider may retry the charge. If payment remains incomplete when the already-paid term expires, the Service enters the restricted mode described in Section 11.

7. Price Changes

1. The Company may change the price of the Service.
2. A price change does not affect a license term that has already been paid for and applies only from the next annual renewal.
3. As a general rule, the Company will provide at least 30 days’ prior notice of a renewal-price change by email to the registered address or through its website.
4. If the User does not agree to the changed price, the User may cancel before the next renewal date.

8. Cancellation and Refunds

1. The User may stop the next automatic renewal at any time through the Stripe customer portal or another method provided by the Company.
2. Cancellation takes effect at the end of the already-paid license term. The paid license remains available until that date.
3. After payment and license issuance, the Company does not provide refunds for the User’s convenience or prorated refunds for an unused portion of the current term.
4. If there is a duplicate charge, an incorrect charge, a serious issue attributable to the Company that cannot be resolved within a reasonable period, or another circumstance in which a refund is reasonably appropriate, the Company will discuss the matter with the User and provide a refund or other reasonable remedy as appropriate.
5. Nothing in this Section limits any mandatory right to cancel, terminate, or obtain a refund under applicable law.

9. License and Permitted Devices

1. During a valid trial or paid-license term, the Company grants the User a limited, non-exclusive, and non-transferable right to use the applicable software in accordance with these Terms and the Product-Specific Conditions.
2. A license purchased by an individual may be used by that individual. A license purchased by a company or other organization may be used by its officers or employees for that organization’s internal business purposes.
3. The number of permitted devices is limited as stated in the Product-Specific Conditions. Windows and macOS devices count together toward the limit.
4. When replacing a device, the User may register a new device after deactivating the old device. If a device failure prevents deactivation, the User must contact the Company.
5. The User must not resell, rent, assign, share, sublicense, or distribute the license, authentication information, or software to any third party.

10. Online Verification and Offline Use

1. An internet connection is required for initial trial registration, paid-license activation, device registration, and periodic license verification.
2. After the most recent successful online verification, the software may be used offline for the period stated in the Product-Specific Conditions.
3. If the offline-use period expires, the Service enters the restricted mode described in Section 11 until online verification succeeds again.
4. The activation server may be temporarily unavailable because of maintenance, updates, communications failures, disasters, or other unavoidable circumstances.
5. If an activation failure attributable to the Company continues for an extended period, the Company will take reasonable measures appropriate to the circumstances, such as restoring activation or extending the license term.

11. Restrictions After a Trial or Paid Term Expires

1. The software does not automatically delete existing data when a free trial or paid-license term expires.
2. In restricted mode, the User may view and export existing data.
3. All calculation functions are disabled in restricted mode, including new calculations, calculations after modifying existing data, and recalculations.
4. Restrictions are removed after successful online verification of a valid paid license.

12. Prohibited Conduct

The User must not:

1. violate any law, these Terms, or public order and morals;
2. bypass license activation, device limits, term limits, or other technical restrictions;
3. resell, rent, assign, share, sublicense, or unlawfully distribute the software or authentication information;
4. reverse engineer, decompile, disassemble, modify, or create derivative works, except to the extent expressly permitted by applicable law;
5. use a fraudulent payment method, improperly repeat a free trial, or register false information;
6. infringe or endanger the servers, networks, systems, or intellectual-property rights of the Company or a third party;
7. interfere with the operation or security of the Service or another User’s use; or
8. engage in other conduct that the Company reasonably determines, on objective grounds, to be inappropriate.

13. Updates and Support

1. During a valid annual-license term, the User may use generally released bug fixes, security updates, and ordinary feature updates for the applicable product without an additional charge.
2. Separate software, separately priced extensions or modules, and other separately sold products are not included.
3. The Company provides email support through shop@kgjapan.com and responds in sequence within a reasonable scope.
4. The Company does not guarantee 24/7 support, an immediate response, or resolution within a fixed period.
5. When requesting support, the User must provide information reasonably necessary for investigation, such as the software version, operating system, symptoms, error messages, and screenshots.

14. Data Storage and Backups

1. Quotations, materials, settings, and other business data entered into or created with the software are generally stored locally on the User’s device.
2. The User is responsible for making regular backups of business data.
3. Unless the Company acts intentionally or with gross negligence, the Company is not responsible for data loss caused by device failure, user error, accidental deletion, operating-system reinstallation, software removal, malware, inadequate backups, or other conditions in the User’s environment.
4. Information required for license activation, payment integration, and fraud prevention is handled in accordance with the Company’s Privacy Policy.

15. Intellectual Property

1. Copyrights, trademarks, and other intellectual-property rights in the Service, software, interfaces, programs, documentation, trademarks, logos, and other content provided by the Company belong to the Company or the applicable rights holder.
2. The license granted under these Terms does not transfer ownership of the software or any intellectual-property right to the User.
3. Rights in quotations and other business data created by the User with the software remain with the User or other person that lawfully owns those rights.

16. Changes, Maintenance, and Interruptions to the Service

1. The Company may modify the Service or perform maintenance as reasonably necessary for security, legal compliance, functional improvements, or operation.
2. Where practicable, the Company will provide advance notice on its website or by email of significant maintenance or a change that materially affects Users.
3. The Service may be interrupted or delayed by disasters, power failures, communications failures, failures of external services, cyberattacks, legal or governmental measures, or other circumstances beyond the Company’s reasonable control.

17. Suspension and Termination

1. If the User breaches these Terms, the Company may notify the User, provide a reasonable opportunity to cure, and then suspend or terminate all or part of the license or Service.
2. The Company may take immediate action without prior notice where necessary because of fraudulent payment, unauthorized license sharing, circumvention of technical restrictions, cracking or modification of the software, an attack on the activation server, unlawful conduct, or an urgent security risk.
3. Suspension or termination under this Section does not prevent the Company from exercising any other right or claim available to it.

18. Calculation Results and the User’s Verification Responsibility

1. Calculations, costs, quotation amounts, and other information displayed or generated by the software are reference information intended to assist the User’s business activities.
2. Before using any output, the User is responsible for checking input values, material prices, processing conditions, yield, taxes, applicable laws and standards, transaction conditions, and the final quotation.
3. The Company does not warrant that the software will be completely accurate, complete, uninterrupted, or error-free in every environment or condition, that it will be fit for a particular purpose, or that it will produce a particular profit or result.
4. Before relying on the software’s results for a contract, manufacturing, purchase order, pricing, or another significant decision, the User must obtain any necessary professional or independent verification.

19. Liability

1. The Company is not liable for loss or damage that is not attributable to the Company.
2. If the Company causes loss through ordinary negligence, the Company’s liability is limited to direct and actual damages that ordinarily arise from the event giving rise to the claim. The total liability is capped at the total amount actually paid by the User to the Company for the affected product during the 12 months preceding the date of the loss.
3. The limitation in the preceding paragraph does not apply where the Company, its representative, or its personnel acts intentionally or with gross negligence.
4. Nothing in this Section limits a User’s rights that cannot lawfully be limited under the Consumer Contract Act of Japan or any other mandatory law.

20. Changes to These Terms

1. The Company may amend these Terms in accordance with the Civil Code of Japan and other applicable law where reasonably necessary because of a change in law, a security requirement, a change to the Service, or another reasonable need.
2. If an amendment materially affects Users’ rights or obligations, the Company will provide reasonable advance notice of the amendment and its effective date through its website or the registered email address.
3. Amended Terms apply from the announced effective date and will not be applied retroactively to completed transactions without notice.
4. If the User does not agree to amended terms, the User may cancel the annual license before the next renewal date.

21. Governing Law and Jurisdiction

1. These Terms and contracts relating to the Service are governed by and interpreted under the laws of Japan.
2. The Osaka District Court or the Osaka Summary Court has exclusive jurisdiction as the court of first instance over any dispute arising from or relating to these Terms or the Service.

22. Language

The Japanese version of these Terms is the governing version. If there is any inconsistency or difference in interpretation between the Japanese version and a translation into English or another language, the Japanese version prevails.

23. Contact

Questions about the Service or these Terms may be directed to:

• Company: KINGEN CO., LTD.
• Email: shop@kgjapan.com
• Contact page: https://www.kgjapan.com/en/contact-us/
• Website: https://www.kgjapan.com/

Product-Specific Conditions

Cutting Gasket Cost Calculator

Item	Condition
Product	Cutting Gasket Cost Calculator
Supported operating systems	Windows / macOS (detailed system requirements will be displayed on the product sales page)
License	Annual software license
Price	JPY 2,450 per year, tax included
Renewal	Automatically renews every year
Free trial	7 days from the first successful online trial registration
Permitted devices	Up to 2 devices in total across Windows and macOS
Offline use	15 days from the most recent successful online verification
After expiration	Existing data may be viewed and exported. All calculation functions, including new calculations, calculations after changes, and recalculations, are disabled
Payment methods	Payment methods displayed at Stripe Checkout
Cancellation	Cancel through the Stripe customer portal or another method provided by the Company before the next renewal date; cancellation takes effect at the end of the current paid term
Refunds	No convenience or prorated refunds. Duplicate or incorrect charges, serious unresolved issues attributable to the Company, and refunds required by law are handled individually