Terms of Use

To use this website of Challenge Co., Ltd., please carefully read and agree with the following terms of use.

1. Disclaimer

The information disclosed in this website is posted on the web server with the greatest of care. However, there may be times when the content may not necessarily be accurate.
The information disclosed in this website is updated as best as possible. However, this does not guarantee that the said information is always the latest information.
The contents and URLs provided in this website may be modified or deleted as necessary without prior notice.
Information presented in this website may be suspended or terminated as necessary without prior notice.
This website may provide links to other websites. However, these websites are respectively operated at the responsibility of each administrator, and Challenge has nothing to do with their content.
For the reasons stated above, Challenge shall not be held responsible for any disadvantage incurred from using this website.

2. Copyrights

The copyrights for the contents of this website (information, images, photos, etc.) belong to Challenge or to a group company unless specified otherwise.
The information contained herein may not be used (reproduced, transmitted, distributed, modified, sold, published, copied, displayed, etc.) beyond the scope of personal use or limitations explicitly permitted by law, without prior consent from Challenge.
Third-party trademark rights, copyrights, etc., such as the trademarks and software of other companies, are subject to the terms of use and license conditions specified by their respective right holder.

3. The following actions may not be taken with regard to this website.

Altering, modifying, or deleting the contents of this website
Introducing a harmful program to this website
Actions that bring or may bring a disadvantage or discredit to Challenge or its group companies

4. Links to this website

Links to this website may be made only upon agreeing with the conditions shown below and submitting a request beforehand. Note, however, that Challenge shall not be held responsible for any damage that you may incur as a result of creating a link to this website.

[Link conditions]

Please heed the following points when creating a link to this website.

  • All links should point to https://www.challenge.co.jp/, as a rule. To create a link to a directory other than https://www.challenge.co.jp/, please indicate so when submitting a request.
  • Links may not be made that could provide the misunderstanding that the contents of this website are part of your website by linking from within the frame of your site or by other such means.
  • Challenge’s company logo and title design of this website may not be used as link buttons on your website. Links should be made using either the text string “Challenge Co., Ltd.” or “Challenge.”

[Reasons for refusal]

Challenge shall refuse links from websites that fall under any of the following.

  • Sites containing content that slanders, defames, or discredits Challenge, its Group companies, or the Group’s products
  • Sites containing content that are offensive to public order and morals
  • Sites containing illegal content or that are related to an illegal act
  • Sites containing sexual content

In addition to the above, Challenge may also refuse links from websites that it judges as inappropriate.

If you agree to the above conditions and wish to create a link to this website, please use the online “Inquiries” form to provide your name, telephone number, email address, the URL of the website from which you will link to this website, and the starting date of the link.

5. Proposals of ideas, etc.

Challenge declines to accept any proposals of ideas, etc. from users.

6. Handling of personal information in this website

Collection and use of personal information: When you request for information materials or make an inquiry to our Group via this website, you may be asked to provide your personal information to the extent necessary. Such personal information shall be handled in accordance with our Privacy Policy, and as a rule, it shall not be disclosed to any third party without your consent.
Management of personal information: The personal information we collect from you via this website will be properly managed under the supervision of an administrator specified by Challenge. Every effort will be made to prevent any external leakage of information and to protect your personal information by taking reasonable and appropriate measures against such dangers as unauthorized access and tampering.
Cookies: We use cookies in some of the services provided by this website, to allow users to more conveniently browse the site. While cookies can recognize users’ computers and browsers, they cannot acquire information that can be used to identify individuals, unless users voluntarily provide their personal information. You can set your browser to refuse to accept cookies or to alert you when you receive a cookie. Even if you refuse to accept cookies, you may still use this website, but note that some services may become unavailable.
Access log: This website records user information in the form of an access log. Recorded in the access log are IP addresses, web browser and OS information, dates and times of access and other such information. Be assured that the log cannot be used to identify your personal information.
Scope of application: Items 1 to 4 above apply only to this website (https://www.challenge.co.jp/) and not to any linked website. Please inquire with the respective sites regarding their privacy policy.
Should you have any inquiries, complaints, or requests regarding the handling of personal information on this website, please contact us below.
General Affairs Dept., Challenge Co., Ltd.

Our privacy policy and policy for handling personal information in this website may be modified as appropriate. Modifications will be reflected in these policies in a timely manner.

7. Recommended operating environment

Access to this website has been confirmed on the following operating systems. Some pages, however, may not function properly depending on the usage environment. (As of April 2021)


Windows 10
・Microsoft Edge (latest version)
・Chrome (latest version)
・Safari (latest version)


・Android (latest version)
・iOS (latest version)

8. Downloading software

When downloading software from a website linked to this website, please adhere to the license requirements for the software. Note that Challenge will not be held liable whatsoever for the downloading or use of the software.

9. Governing laws

The use of this website as well as the interpretation and application of these Terms of Use shall be governed by the laws of Japan, unless specified otherwise.