Exceptions

Exceptions to Lack of Novelty of Invention

Q1. We understand that Japan has a grace period for avoiding certain public disclosures from constituting prior art against a Japanese application.  How long is this grace period?

A1.  The grace period defined under Article 30 of the Japanese patent law (Exceptions to Lack of Novelty of Invention) is 6 months from the date of public disclosure.

Q2. What type of disclosures is capable of taking advantage of the Exceptions to Lack of Novelty of Invention in Japan?

A2.  According to current Article 30 of the Japanese patent law (effective as of April 1, 2012), virtually any disclosure, including “inventions made public at meetings and seminars, which are not academic conference designated by the Commissioner of the Patent Office, inventions made public on TV and radio, and inventions made public through sales”, are covered by the Exceptions to Lack of Novelty of Invention.  However, a patent publication is not a non-prejudicial disclosure.

Q3. Is the grace period applicable to scientific articles published on the web? 

A3.  The 6-month grace period is also applicable to electronic publications of scientific articles.  When a scientific article is published in the form of an electronic publication in advance to the publication in print, the 6-month grace period will start from the date of the electronic publication.  This rule applies not only to a free electronic publication, but also to an electronic publication which requires registered membership and/or purchase of the publication for accessing the electronic publication.

Q4. An invention has been published as a scientific article and a basic patent application has been filed in the US within 6 months from the publication of the scientific article.  Already 10 months have passed from the publication of the scientific article, but is it still possible to enjoy the benefit of the Japanese 6-month grace period by filing a Japanese patent application claiming the Paris convention priority from the basic US application filed within 6 months from the publication date? 

A4.  No.  Claiming of the Paris convention priority does not allow the filing date in Japan to date back for the purpose of grace period.  In other words, when a basic application is filed in other country within 6 months from the date of public disclosure, and a Japanese patent application claiming the convention priority from the basic application is filed after the expiration of the 6-months grace period, the Japanese patent application cannot enjoy the benefit of the grace period.

For receiving the benefit of the 6-month grace period in Japan, the Applicant must file within the 6-month grace period either one of the following applications:

   (1) Japanese national patent application*, or

   (2) PCT application designating Japan as one of the designated states. 

* Either a Japanese patent application or a PCT application claiming the convention priority from this Japanese patent application can be filed after the expiration of the grace period and still enjoy the benefit of the grace period.

Q5. What are the steps necessary for obtaining the benefit of the Japanese 6-month grace period?  

A5.  Necessary steps are explained separately for Japanese national patent application and PCT application.

Japanese national patent application:

A patent application is filed simultaneously with a Request for Grace Period within 6 months from the date of public disclosure.  Alternatively, the Request may be omitted by stating such effect in the patent application.

Next, a Document Verifying the Request, which is signed by all applicants, is filed within 30 days from the filing date of the patent application.  Filing of a specific evidence material (such as a copy of the scientific article disclosing the invention) is not required, but it is most advisable to file the evidence material with the Document.

PCT application designating Japan:

When a PCT application designating Japan as one of the designated states is filed within the 6 month grace period, such a PCT application will obtain the benefit of the grace period even when the PCT application enters the Japanese national phase after the expiration of the grace period (i.e., within non-extensible 30 month deadline).  In this case, both the Request for Grace Period and the Document Verifying the Request are filed within 30 days from the entry into the Japanese national phase. 

[Filing of the Request for Grace Period can be omitted when “Declaration as to Non-Prejudicial Disclosures or Exceptions to Lack of Novelty” (PCT Rule 4.17(v), 26ter.1) is made at the international stage.]

The Document Verifying the Request can be prepared at our end and forwarded for execution by the applicant(s). 

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Design Registration

Q1. If a design application is to be filed in Japan claiming Convention Priority based on a non-Japanese application, is the priority period one year as in patent applications? 

A1.  No. For filing design applications in Japan claiming Convention priority, the priority period is for six (6) months, instead of one year, from the filing of the priority application.  Even if you have a design "patent" application filed at the USPTO, the priority period is 6 months for filing a Japanese patent application with a valid priority claim based on the degisn "patent" application filed in the US.  

You also have to be careful when filing a patent application in Japan claiming priority from both a patent application and a design application.  That is, for example, if you filed in your country a patent application on May 1, 2012 and a design application on October 30, 2012 and are now considering filing a patent application on May 1, 2013 in Japan claiming priority from both of the above-mentioned patent application and design application filed in your country, this date “May 1, 2013” is within one-year priority period based on the patent application but is after the expiration of six-month priority period (October 30, 2012 + 6 months = April 40, 2013) based on the design application.  Therefore, the priority claim based on the design application is not valid.  

Q2. I am planning to file a design patent application in Japan claiming priority from a US design patent application.  What are the major differences in practice between the United States and Japan that require particular attention?

A2.  Firstly, unlike the “design patent” in the United States which is one type of patents and is basically dealt with under the patent law, Japan has a design law separate from a patent law. 

Therefore, in Japan, an application for registration of a design is referred to as “design application”, not “design patent application” as in the United States.  

More importantly, this difference in legal system leads to some significant differences in design registration practice between the US and Japan representative examples of which are enumerated below.

Difference 1)  “Single design per application” system in Japan

It is understood that the US system allows an applicant to pursue two or more designs (embodiments) of a single inventive concept in a single design patent application.  This, however, is not the case in Japan.  According to the Japanese practice, each design application may include only a single design of single shape.

Therefore, in Japan, when a single priority application includes multiple designs, it is necessary to either:

-  file separate design applications with respect to the different designs, or

-  file an application including different designs and later file a divisional application(s).

In this connection, however, it should be noted that it is not allowed to file a divisional application on a “partial” design from a “whole” design application and vice versa.  Concerning the “partial” and “whole” designs, explanations are made below.

Further, there is an exception to the "single design per application" system, and the Japan's Design Law provides "related design" system for covering a plurality of similar designs.

1-1) Exception to the “single design per application” rule

The Japan’s Design Law exceptionally allows for discrete objects to be claimed in a single application if common sense indicates that such discrete objects are usually sold as a “set”, as in the case of, for example, a 3-piece set including a knife, fork and spoon. 

1-2) Related design applications

In the case where the priority US application contains a plurality of different but similar designs (e.g., minor variations of a certain design), such similar designs may be covered by utilizing the related design system in Japan.  Specifically, the similar designs can be covered by filing a principal design application and filing a related design application(s) by one day prior to the publication of the principal design. 

The design registered as the related design can be enforced independently of the registered principal design and other registered related design(s).  That is, a related design right can cover even a design similar to that related design, which, however, is not similar to the principal design. 

For covering such similar designs under the related design regime, it is possible to either:

-  file a principal design application and also file a related design application(s) simultaneously with the principal application or later (by one day prior to the publication of the principal design at the latest), or

-  file general design applications on the similar designs, and later amend the general applications into a principal design application and a related design application(s).

The JPO may find that the designs are not similar enough to be eligible for registration under the related design regime but there is no need to be so nervous about this point.  If the JPO denies the similarity, the JPO will issue an office action requesting the applicant to stop relying on the related design system and change the applications to normal applications.

 

Finally, the right of a registered related design is independent from the right of a registered principal design but there are the following exceptions.

1.   Synchronized protection term: 

The protection term for both of a registered principal design and a registered related design is 20 years from the registration date of the principal design.  This point, however, is substantially immaterial in the present case because the two applications will probably be registered almost simultaneously.  Further, the registered related design can be maintained even if the principal design is allowed to lapse due to non-payment of maintenance fee, and vice versa.   

 2.   Restriction of transfer of rights and licensing: 

The right of a registered related design cannot be transferred or licensed independently from the registered principal design.  That is, for transfer of design rights to a third party by assignment etc., the principal and related designs must be simultaneously transferred together to the same entity.  Further, also for licensing, the principal and related designs must be licensed simultaneously to the same entity.

 

Difference 2)  Partial Design System

The Japan’s Design Law has a “partial design system” which allows registration of parts of shapes or forms with distinct characteristics.  

The US system also provides a similar practice where dotted lines can be used to indicate non-claimed parts.  There is, however, one important difference.  That is, the Japan’s system requires that a partial design application should be filed with a clear indication that the application claims a partial design.  In the absence of such indication, the application will be recognized as claiming a whole design. 

Once filed with the indication of a partial design application, it is in principle not allowed to amend the application into a whole design application and vice versa.  Similarly, a divisional application on a partial design cannot be filed from a whole design application and vice versa. 

Therefore, if it is important to cover both of whole and partial designs, it is recommended to file both a whole design application and a partial design application.

 

Of course, there are many other differences between US and Japanese practices; however, the above differences are believed to be the main differences which require particular attention when filing a design application in Japan claiminig priority from a US design patent application.

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