└ 発明・考案の売り込み
2026年01月20日
商品の用途を変更しても特許は有効か？【リライト版】
今回の内容はあの感染症時代のものです。
いつの時代も新たな需要を考えてみるのもいいものです。
特許で押さえておくと新たな需要の流れに乗れることもあります！
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東雲特許事務所（しののめ特許事務所）
弁理士 田村誠治（元特許庁審査官）
【東京都港区新橋】【東京都中央区八丁堀】【東京都北区田端】
【稀有な経歴】特許技術者→特許庁審査官→特許事務所運営
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＜機械翻訳＞
Is a patent valid if the product's use is changed? [Rewritten]
(Q) Is a patent valid if the product's use is changed?
I filed a patent for an invention of a pouch.
The patent envisioned it as a travel pouch.
Due to various circumstances, it became difficult to sell the pouch as a travel pouch.
So, I decide to sell the pouch as a mask case.
Will the patent still be valid?
(A) The patent remains valid even if the product's use is changed.
<Explanation>
Generally, when seeking a patent, the "use" of the object is not specified.
Even if the use is unique, it can be difficult to obtain a patent for that purpose.
For example, consider the invention of a "travel pouch."
This pouch simply has the following characteristics:
✔ Suitable for use while traveling
The pouch has unique features such as its shape, structure, and materials.
As a result, it is "suitable" for travel.
A patent can be obtained for the shape, structure, and materials.
The travel pouch is just one example, and there is no need to limit the patent to travel use.
How the user uses the pouch is up to them.
You can use it as a mask case, as the questioner did.
Of course, there is no need to limit it to "mask case use."
Even if you did limit it that way, it doesn't make it any easier to patent.
■Let's talk about the time of the pandemic - ideas for new demand!
This article is about the time of the pandemic.
During that pandemic, many products and services were negatively impacted.
On the other hand, there were also quite a few positive impacts.
There was also the term "coronavirus demand."
There may be some products, services, or businesses that
✔ just happen to fit into coronavirus demand.
On the other hand, what about
✔ considering whether they can be used to create coronavirus demand?
Like the questioner,
✔ travel pouches have been negatively impacted by coronavirus
✔ mask case pouches are a coronavirus demand
This is a great opportunity to come up with ideas!
The fact that the person asking this question has filed a patent is particularly important.
It's always good to think about new demand.
If you secure a patent, you may be able to ride the wave of new demand!
