what is the validation of logo design? Recently I notice two game in one is appstore and another one is google play store. but there different company but using almost same logo. My question: is there a violation of copyright?.
The images as displayed are quite similar, similar enough that one could violate the copyright of the other. But that is not enough to know if there was in fact a copyright infringement. There are several possibilities: Although using different names, the developers could in fact be the same company. One developer might have obtained permission to use the image from the other. Both images might be based on the same 3rd-party image which both are using with permission. Both images might be based on a public domain image. Copyright is only infringed if a protected work, or a derivative version of the work, is used without permission from the copyright holder. Without knowing who the rights-holder is, and if permission has been obtained, one cannot know if an infringement has occurred. There is no independent or 3rd-party entity that checks for copyright infringements. By the way, the similarity here is close enough that there might also be an issue of trademark infringement. But again, infringement requires use of a protected mark without permission, and so some of the same possibilities arise. (The source of a trademarked logo doe not matter. On the other hand there cannot be trademark infringement unless the mark has been registered, or actually used in commerce. If the same image is used on products in very different industries, say games and hammers, there may or may not be infringement.)
Trademarks protect against consumer confusion. Ask yourself if a consumer seeing that image with the &quot;studio&quot; portion removed might think that the altered image represents the same company as the original image. Of course, the answer will be &quot;yes.&quot; But in the end it also depends on how the trademark is used. You've used the original image in the question; have you violated the trademark? No. Do you violate Tesco's trademark when you say &quot;I went shopping at Tesco&quot;? No. Do you violate their trademark when you sell food using the name &quot;Tesco&quot;? Yes. A distinctive graphic design such as this will also be protected by copyright, so you will also have to consider whether your intended use infringes copyright.
In the US at least, copyright does not normally protect titles and other short phrases, they are considered not original enough. (See the US Copyright office Circular #33). However, titles, brand names, and slogans may be protected as trademarks, as may logos. A trademark is a word, phrase or symbol used to identify goods or services to customers and others. They key issue in a trademark case is: &quot;might reasonable people be confused into falsely attributing the infringing item with the trademarked item, or into thinking that is is associate, endorsed, or sponsored by the makers of the trademarked item, or comes from the same source&quot;. When the name is the same and the general area and genre is similar, trademark protection seems plausible. Marvel is known to be quite protective of its IP, and might well have trademarked such a title. A successful suit by a trademark owner could lead to an injunction (a court order) against future use of the infringing m,ark, and significant money damages, depending on the detailed facts. A name such as &quot;Black Pirate&quot; is fairly generic, and might not receive much protection. On the other hand, if that name has become associated with a detailed and specific character or content, it might have acquired a &quot;secondary meaning&quot; and be more strongly protected. Consulting an experienced trademark lawyer or other expert might well be a very good idea.
You are creating a derivative work. You are only allowed to do this if the library comes with a license that allows this. If you want to give your derivative work to anyone else, copying it is copyright infringement unless the license allows it. Copying the derivative work and attaching a different license is most likely to be copyright infringement. And if people receive a copy with an open source license that is not justified and rely on it, that’s creating one unholy legal mess for everyone involved and can be massively more expensive than plain copyright infringement. No license means you don’t have permission to do anything with it, not creating derivative work, not distributing it, and certainly not publish it with an open source license.
Is this legal? Generally yes, unless it unlawfully exceeds the scope of the license. Also, if it is, how can I check if it's permitted by the original store's EULA? Read the whole EULA, focusing on terms related to resale, assignment, and transferability.
Software qua property is protected by copyright *perhaps patent, in some jurisdiction). The general rule is that whoever creates the thing (book, song, software) has the exclusive right to the thing. If an employee of Company 1 writes software for Company 2, that employee might (rarely) hold the copyright, but typically that scenario would involve a "work for hire", where the employee is hired by Company 1 to do such tasks as part of his duties with Company 1 (which might then be given to Company 2). This would then be a work for hire, and the copyright is held by Company 1. If the actual author was an independent contractor, he would hold the copyright – see Community for Creative Non-Violence v. Reed for analysis of the subtle nuances in making that determination. The concept "work for hire" which crucially involves the "employee" relationship would not be applicable to Company 2 paying Company 1 for a product, and as long as the actual author is an employee of C1, C1 has not created a "work for hire" in the legal sense. Without some explicit disposition of copyright, Company 2 is in a sketchy position. Since C1 holds copyright, they must grant a license to C2 so that C2 can legally use it; or, C1 must transfer copyright to C2. This does not happen automatically, and (if C1 does not want to remedy the situation after the fact) C2 would need to take C1 to court to force a resolution to the situation. At that point, the issue would be what C1 implicitly promised, even though they didn't put it in writing. It is likely that the initial exchange was along the lines "Can you make us a program that will do X?", and the answer was "Sure, that will cost Y", and then "Okay, go ahead, looking forward to the product". The courts would not simply say "Well, you didn't explicitly require a license, so you don't get to actually use the software that you paid for". However, it's a somewhat open question whether the court would order a license (of what nature?) or a transfer of copyright. The disposition would depend heavily on the facts of the case (what was said, what C1 actually did, what kind of business they are, what did creating the work involve...).
I know that some of this may be covered by either the Creative Commons license or the OGL it was published under, but it's not clear to me how far those freedoms extend. It was all published as materials under copyright to the original authors, TSR, WotC, &amp;c. and if things had been left like that hszmv's answer would've been completely correct: stay vague and allow users to enter those names and descriptions, talk to WotC's lawyers and sales department about license fees, or just keep it to yourself and your friends. You're right, though: WotC went whole-hog, dumped their partial OGL idea, and relicensed some things as Creative Commons. There are different Creative Commons licenses, though, some restricting commercial use that would still keep your app to yourself and friends without a specific licensing agreement. Go find out exactly what WotC put under CC. If it's only the Player's Handbook, then you can only use names and descriptions that are from the Player's Handbook and you're still facing a cease-&amp;-desist if you start adding in Monster Manual info.If it's everything, it's everything they have but still won't include any older modules that they don't have the right to change the copyright status of. It'll still be under copyright, usually until 70 years after the death of the original creator. For Gary Gygax, that'll be 2078. Expect that length to extend during your lifetime though. US copyright usually extends every time Mickey &amp; friends come close to entering the public domain. [Edit: The comments below suggest it might only have been the Systems Reference Document (I assume for 5e). It's 403 pages of not nothing but it's not much given the universe we're talking about. The spell and monster lists are generic. Bigby is nowhere to be found and the only mention of a beholder is a reminder not to use the name beholder without their written approval.] Go find out exactly which CC WotC used. The article above says &quot;all use&quot; but you need to find out the exact number of the Creative Commons license for each thing you're using and make sure all of your uses fall within its terms. Some are basically free use but still insist you mention the copyright holder prominently or in every use. Go ahead and do that if you have to. [Edit: The comments below say it is probably CC 4.0. The SRD download page says you can use CC 4.0 or their own OGL. In both cases, yes, you must acknowledge WotC by name in a way prominent enough to satisfy the license you choose.] And of course, Don't trust legal advice from internet randos or ChatGPT. If this is a serious thing you're going to be spending a good chunk of your life working on or expect to make significant money from, go talk to an actual lawyer. Bonus points for one specialized in IP with a knowledge of roleplaying and the way it's been (partially) opening up lately.If you start off just by talking to WotC's lawyers, just do that somewhere where you get their explanations and permissions in writing. Then keep that somewhere safe in electronic and hard copy. Then still take that with you when you go talk to your own lawyer.
Trademarks apply only to a limited field. If you follow the link, it reports that it applies to class 42, graphic art design. So you are free to use (and register &quot;mama&quot; for your food delivery service, for example.