Demon Slayer: Kimetsu no Yaiba-related trademark application

  • July 23, 2020


Like many people nowadays are absorbed in the big boom of manga and animation “Demon Slayer: Kimetsu no Yaiba”, my child is not an exception. The other day, she heard from a friend of hers that a Kimetsu-ish cloths were on sale in the handicraft store in our neighborhood, and she asked me to take her there, so we went.

It is an old-fashioned handicraft store, but they were very busy because of the boom of handmade masks. As my daughter had been told, several types of Kimetsu-ish cloths were being sold near the entrance. A few years ago, it only looked like a lattice pattern, but now when you look at the green and black lattice patterns, it reminds you of Tanjiro, one of the characters from the manga. I think it is a wonder of human brains’ perception to associate things that way.

My child likes Shinobu Kocho, another character, but I could not find Shinobu-motif cloth, so I asked the shop assistant and she said, “we have classic patterns, but something with a characteristic pattern probably won’t come in due to copyright issues”. My child was disappointed. In the end, she bought a cloth with a pattern with the look of Nezuko-motif with her own pocket money, and she’s been playing with it by putting them on. (See photo)

The publisher, Shueisha, has recently applied for a series of Kimetsu-related trademarks such as character names and phrases that appear in manga. In addition, the trademark applications for patterns used on jackets and kimonos of six characters, Tanjiro, Nezuko, Zenitsu, Shinobu, and Rengoku are registered. (Applications filed on June 24, 2020)

These can be seen by searching for the applicant “Shueisha Co., Ltd.” in the “Trademark Search” of J-PlatPat. Due to the time lag, only the gazette is currently available, but within a few weeks you will be able to see it in the application and registration information search. It is easier by narrowing it down with application date or publication date.

Personally, I expect that the application for the six pattern designs will be divided by the JPO. I would like to pay attention to the future of the examination.

By the way, I like Giyu-san and Zenitsu-kun. (Marron)

* ” Demon Slayer: Kimetsu no Yaiba ” is a trademark of Shueisha.

What is intellectual property?

  • July 16, 2020

#intellectual property #patent #trademark

Many people may have heard the words “patent” and “trademark”, but I think not many people actually get a sense of “intellectual property”. On the Japan Patent Attorneys Association website (, intellectual property is explained; “For ideas and creations created by human intellectual activities, there is something that has a wealth of value, and those things are collectively called “intellectual property.” Patents and trademarks are included in intellectual property.
If you are interested, please see the link above for more detailed explanations with examples. (Runner)

Hair Dryer

  • July 15, 2020


Before, when I traveled with my family, I found a hair dryer that I had never seen before in the public bath at the accommodation.
The dryer had no blades and had a hollow in the middle. I’d seen a fan without a blade on a TV commercial before, so I knew it was Dyson.
The name of this dryer is Dyson Supersonic Ionic Hair Dryer. The price is quite high at USD470 (tax included). When I tried using it, I felt that the wind power was stronger and the hair dried faster than the one I used at home.
This dryer is registered under Design Registration No. 1513825.
If you are interested, you can find the information on J-plat pat. (Rabbit)


  • July 10, 2020


Recently, I heard on the news that the memoir “The Room Where It Happened: A White House Memoir” by Mr. Bolton, a former presidential aide of the Trump administration, has been released recently, so I searched for it.
On, a paperback cost about 3600 yen and an electronic book cost about 1900 yen.
I thought that it would be easy to read and cheap, but I ended up reading the free sample on e-book without buying it (laugh).
In addition, it seems that paper books are currently short on stock (as of 2020/6/24).

To read e-books, I use amazon kindle.
I think many people already know, but I read it on my iPhone with the amazon kindle app.
Unlike paper books, it is useful because you can easily look up words you don’t know by using the dictionary function.

The logo of amazon kindle is a Japanese trademark registration number 5169216, classes of goods and services and designated goods or designated services “reception of a text, an image, and a sound, the portable electronic information terminal for reading, electronic publications and the portable electronic information terminal used for the inspection of a text in addition to this, computer hardware, computer software, other electronic machines [apparatus and their parts]s, telecommunication machines and apparatus”, etc. are registered as trademarks.