What is Patent ? what can be patented in Japan ?
A patent is a government-granted right that gives exclusive ownership of an invention for a limited time. It allows the patentee to control who can use, make, sell, or import the invention. Obtaining a patent offers various financial advantages, such as earning royalties through licensing, building a business without competition, raising capital, or selling the patent.
Table of Contents
We will start with how patent law defines a patent.
Definition: what is a patent?
“A Patent is a statutory right for an invention granted for a limited period of time to the patentee by the Government, in exchange of full disclosure of his invention for excluding others, from making, using, selling, importing the patented product or process for producing that product for those purposes without his consent.”
in other words;
“A patent can be defined as a grant of exclusive rights to an inventor over his invention for a limited period of time (generally 20 years from the date of filing of patent application). The exclusive rights are the right to exclude others from making, using, selling, importing, or offering for sale his patented invention without his permission.”
This implies, when you get a patent for your innovative idea, the government gives you a monopolistic right for your invention to stop others from making, using, selling, importing, or offering for sale your patented invention without your permission.
What this means in financial terms is you would get significant monetary benefits for your patented invention by:
- licensing your patented invention to other businesses and earn royalties on regular basis as per the agreement
- you can build a business around your patented invention and stop others from copying it, so there would be no one competing with you with similar product or service, and hence can earn significant profits.
- having a patent for your invention may also help in raising capital for business
you can transfer all rights of the patented invention to other businesses. that is, you can make significant money by selling your patented invention.
What can be patented in Japan?
Article 2 The term “invention” as used in this Law shall mean a highly sophisticated creation of technical ideas utilizing the laws of nature.
The basic criteria for patentability are:
- subject matter
- novelty
- inventive step and
- industrial applicability.
Subject matter The Patent Act defines an ‘invention’ as “the highly advanced creation of technical ideas by which a law of nature is utilized”.
Now let’s look at each patentability criteria one by one so that we can see if our invention satisfies them and whether we should proceed with filing a patent application.
Novelty :
Novelty : Article 29(1) of the Patent Act says inventors may not obtain patents for:
- inventions that are known to the public
- inventions that are publicly used or
- inventions that are described in a distributed publication or made publicly available online in Japan or a foreign country before the filing of the patent application.
An invention is said to be novel if it is not known to the public or does not constitute the state of the art. The invention should not be in publication or being used or known to the public or patented in Japan or other countries prior to the filing date.
Inventive step or Non-obviousness :
Inventive step If, at the time the application is filed, a person ordinarily skilled in the art could have easily made the invention based on the technology listed in Article 29(1) of the Patent Act (ie, an invention involving the prior art or that is publicly known), the invention cannot be patented (Article 29(2) of the Patent Act).
This is the most tricky and difficult-to-overcome requirement for getting a patent in Japan.
A patent may not be obtained, if the differences between the subject matter sought to be patented and the prior art is such that the subject matter as a whole would have been obvious at the time the invention was made to a person having ordinary skill in the art.
The non-obviousness requirement states in order to get a patent the invention should not be obvious to a person who is ordinarily skilled in the art.
if we review the invention in light of existing knowledge or state of the art, does the invention becomes an obvious next step? If the answer is yes… then the invention is said to be obvious to a person skilled in the art and a patent would not be granted such invention. Some of the common things considered as obvious are:
- Combine elements from prior arts become mere combination of prior art elements
- Interchanging or substituting element to obtain similar results
- Use of known techniques or methods to enhance invention etc…
In other words, considering the state of the art (things already known to the public) and assuming the person skilled in the art does not have any knowledge about our invention, if that person skilled in the art was asked to solve the problem (that our invention solves), then our invention should not come as a natural suggestion by that person skilled in the art. Which ultimately means invention should not be obvious. This is in essence known as a non-obviousness test.
And one of the ways that could be helpful in qualifying the non-obviousness test of patentability is mentioning and proving to the examiner that our invention is solving a long-standing problem in the industry. Pointing out that the problem existed for long time and there was a need to solve the problem, also mentioning existing prior arts and patent references who tried before but could not solve up to a certain extent (stating problems with the prior arts in the background of the invention while drafting patent) and since the problem has not solved till now it ultimately means the solution to the problem that is our invention was Not obvious.
Now, this is not your job as an inventor to do all this, in fact, this is the responsibility of a patent agent or patent attorney working on your invention. an experienced Patent practitioner would be asking you for the required details and technicality of your invention and using such information while drafting a patent application for your invention which gives a significant chance for your patent application to stand through the examination stage till the grant of patent.
Utility or useful :
The utility or usefulness criteria of patentability states an invention is “useful” if it provides some identifiable benefit and is capable of use. The invention must have a “utility,” or in other words, be useful.
Inventions not patentable in Japan
Article 32 An invention that is likely to disrupt public order, corrupt public morals or harm public health may not be patented. there are subject matters which are non-patentable: As per Interpretations of the statute by the courts
- the laws of nature,
- physical phenomena like electromagnetic signals
- abstract ideas are not patentable subject matter
- Literary, dramatic, musical, and artistic works (these can be copyright protected)
- Inventions which are not useful (such as perpetual motion machines), or offensive to public morality
Even if your invention fits under the law, not everything can be patented.
- Inventions cannot be too abstract. For example, if your invention is a mathematical formula not tied to any particular process or application, then it is not a patentable invention.
- Inventions cannot be natural discoveries. If you are fishing in the backwoods and pull a mysterious new fish from the pond then you cannot patent it
- A patent cannot be obtained upon a mere idea or suggestion.
What extent of information is required to file a patent in Japan?
when you are thinking about that innovative idea and its patentability, the first question you need to ask yourself about your idea is how much details you know about that idea and are these details are enough to reduce it into practice?
“innovative ideas (inventions) are patentable only if they are enabling ” provided that it satisfies all patentability criteria. Your idea would be said to be ‘enabling’ if the information you have is detailed enough such that a person skilled in the art would be able to practice the invention without requiring external help or additional research.
In other words, the information you know about your idea is detailed enough such that a person moderately skilled in the art could practice the invention. You don’t need to develop a working model or a prototype of your invention (idea) but you need to know how to implement or practice your invention. such information called “implementable details of invention” or an enabling disclosure of the invention.
“Everything has its beginning in an idea”
When all you have is one line idea about something that might work or would work then you should know there is work to be done and efforts to be taken before it could get patent granted. That doesn’t mean you need to build your invention or a working prototype, all it means is you need enough details about your idea that would help someone to practice it, it should be enabling !!!
Everything begins with an idea, including inventions that are granted patents now, started as an idea at a certain point. but a 1 line idea may not be yet patentable, it needs further work so that it becomes invention disclosure (implementable information of the invention) such that a person skilled in the art could reduce it to practice.
You may read our guideline on How to take your innovative idea from idea stage to invention disclosure to granted patent in Japan which would help you proceed in step by step manner from idea inception stage to granted patent.
- Indian Patent Office, Govt. of India
- Patent Facilitator for Start-ups, Startup India Govt. of India
- Bachelor’s degree in Electronics and Telecommunication engineering.
- Author of multiple books on Patents and IPR including a best-selling book on “How to patent an idea in India” which has been selected as the “Memorable Business Book of 2018” by Amazon
- Books are included in the syllabus of Educational Institutions as textbook and reference book on subject of IPR and Patents
- For over 15 years, Prasad has helped protect the intellectual property rights (IPR) of more than 1800 clients, including individuals, entrepreneurs, and educational institutes. This includes patents, trademarks, designs, and copyrights.