Hasamu® A4 -Liscio-


Crowd Funding Held

We will be accepting reservations in the form of crowdfunding on this website on the following dates. Please read " About Pre-order" when you make a pre-order.

Starts May 16, 2022 from 12:00
Ends - August 15, 2022 23:59

Delivery We have started to ship the products in the order of application, by color, from June, and will continue to ship as soon as we receive them. We will continue to ship as soon as they become available, and we expect to complete shipping by the end of August.

SYRINX Drawing Contest 2022
"Challenge the perspective drawing

Hasamu® A4

To commemorate the achievement of the crowdfunding goal, we will hold the SYRINX Drawing Contest 2022 "Challenge to the perspective drawing",
calling for creative works using the original templates distributed free of charge by SYRINX.
Details of the Call for Entries

Minimalist A4 case to expand your ideas
(Design registration applied for)

Hasamu® A4 is a tool to carry half the size of A4 paper and open it to write freely, to expand your thinking creatively, and to develop your ideas.

A Tool for Expanding Ideas

The impetus for the development of this product was the desire for people to use a tool that allows them to think freely. More and more people are using digital tools from the start when formulating ideas. However, there are time lags and functional limitations in the process of launching an application, selecting a tool, and inputting information.
The hand is a tool directly connected to the brain. Nothing beats pen and paper for the sensation of directly expressing what you think in your head and getting immediate feedback. That stress-free situation is important for creatively expanding your thinking and formulating ideas.
However, if you jot down ideas as they come to you in a notebook or sketchbook, you will quickly run out of pages. It is also difficult to delete unneeded pages and to store large quantities of them. In the end, many of you may have hesitated to write, and not even used up the last page.

More easily, more freely.

The Hasamu® A4 was born to fulfill this desire.

Hasamu® A4
Effective use of the paper backing

Another motivation for product development was environmental measures. Hasamu® A4 was created to make effective use of waste paper backing.
However, when we actually started using the product, we made an unexpected discovery. Regular A4 paper is versatile and convenient, but with lined paper, you can freely write anything you want without worrying about missing anything or the number of sheets at all.
To develop ideas, it is important to be able to write without stress. Effective use of lined paper is one of the best options for this.

Just insert A4 paper.

You can use A4 paper, the most common standard, between the two sides of the paper. Simply insert both ends of the paper into the pocket.
There is no need to fold, punch holes, or do any other tedious work.

用紙をセット Simple structure of just inserting paper

Half the size and carry smaller

You never know where an idea will strike you. That is why it is important to make it easy to carry. Folded in half, it can be carried in A5 size, and opened to a flat A4 size, so it can fit in a small bag that does not hold A4 documents.
Pens can also be set in it, so there is no need for a pen case.
It is crease-resistant and can be used as a document case.
(If you press too hard, a crease will remain.)

MacBookAirとのサイズ比較 Size comparison with an A4-size notebook computer

Big and comfortable

To expand your ideas, you need a large, seamless surface. Minimally sized pockets on both ends expand your writing area and allow you to utilize paper without waste.
In addition, comfort is important to use the product well with love.
The flat design with no extra parts or bumps serves as a smooth writing leather desk mat.

紙押さえ Minimally sized paper pockets

You can choose your favorite paper.

Square paper, manuscript paper, ruled paper, blank paper, loose-leaf paper, and lined paper. The
A4 size makes printing easy. You can find ruled paper, graph paper, calendars, and various templates on the Internet.

We also offer free original templates such as for perspective drawings.

さまざまな用紙 Original template for two-point perspective drawing

Flip and browse

You can flip the paper and browse it like a book by inserting only one side.

めくる Presentations can also be made by inserting materials between the two sides.

Minimalist design

The body, pen holder, and paper holder are all made of one smooth continuous piece of leather.
No hardware is used at all. The pen clasps securely and prevents the pen from losing its shape.
The pen holder is long enough to protect your favorite pen from scratches. Slim pens with a diameter of approximately 10 mm or less can be used.

ペンホルダー Three-stage butterfly stopper

Careful detailing

The simpler the design, the more important the detail.
Fine lines (nen) are carefully placed around the perimeter, and the leather cross section (koba) is carefully polished and beautifully finished after dyeing.
The floor (back side) of the leather is also carefully polished to minimize fluff and unevenness.

コバ Careful finishing of the koba

When you are finished writing, you can save it as is.

When you are finished writing, you can file the necessary papers or store them in the cloud. The A4 size is easy to handle, and the crease-resistant design prevents paper jams when scanning with the ADF (Automatic Document Feeding) function, making scanning smooth.

コピー機 Scanning with the ADF is also smooth.

Smooth texture

Liscio is an Italian word meaning "smooth.
The silver surface is smooth and fine, with natural unevenness in color due to the dye finish, giving it an elegant and tasteful leather-like appearance.

The leather used is vacchetta leather, which has been used in the Tuscany region of Italy since the early 9th century. The leather is tanned with vegetable tannin and soaked with oil slowly, so that you can enjoy its almost permanent moisture and gloss.

The aging process of vacchetta leather stands out among other Italian leathers, and the color and luster of the leather deepens beautifully.


CamelCamel: The color of camel hair. A light brown with yellowish tints.
ChestnutChestnut: Chestnut. A reddish brown.
Teal Teal : The color of a duck's facial hair. The blue-green color gradually darkens.
Black Black : The leather gradually turns from matte to glossy black.

Natural Mark

Animals are bound to have scratches, stains, insect bites, and other blemishes.
In ordinary leather, these are covered up with pigments and enamels.

However, this leather is dyed to preserve the original texture and feel of the leather. Therefore, the following "living proofs (natural marks)" are often engraved on the leather.

These are the unique characteristics of natural materials and are not defects. However, each person has his or her own taste in the appearance. If you wish, we can replace them. If you wish to exchange the item, please check the exchange section of " Warranty, Repair, Cancellation, and Returns" before proceeding.


The cows that are the source of this leather are raised on pasture so that they grow up in a healthy and stress-free environment. Therefore, there are many small scars and insect bites from bumps and fights. These scars are "rose scars. The better the leather grows in a natural environment, the better the quality of the leather, but the more rose scars there will be.

They are scattered throughout the leather and only small parts can be removed if they are avoided. Therefore, they are often found on large parts.

This is a unique expression of natural leather that can never be seen in man-made materials.


The most common sign that a leather is natural and not man-made is the "blood streak", a pattern unique to natural leather.

These are the traces of blood vessels under the skin. Some are faintly visible on the silver surface, some remain as light wrinkles, and some are clearly visible on the floor.


A long stripe pattern created when the complex shape of an animal is flattened into leather. It is called "tiger" because it looks like the stripes of a tiger.

Tigers are especially common around the neck, and since this leather is shoulder, tigers are frequently seen. The area around the spine, where there are many tigers, has a high fiber density and the leather is of good quality. Flat, wrinkle-free leather is not necessarily better quality.

In Italian leather, tigers are a very popular characteristic that enriches the look of the leather.


Pores and hair follicles remain in the leather and are called "pinholes.
The leather is often seen as a natural expression, especially when the leather is only dyed and has little surface treatment, as in this case.

Dimensions: approx. W350 x H225 mm (when open)
Maximum capacity: 15 sheets of A4 copy paper
Product weight : approx. 110 g
Leather :Cowhide
Country of manufacture : Japan
Intellectual Property: Intention 2022-005318
     Intention 2022-005319

Buy it with

Customer Reviews

Based on 11 reviews
64% (7)
27% (3)
9% (1)
0% (0)
0% (0)
Academia . North .
It is comfortable in appearance and thinness because it was systematized that it was unconsciously tucked into a mail order catalog in a store.

It is comfortable in appearance and thinness as it was systematized to be unconsciously tucked into mail order catalogs in stores.
Because it is leather, it can comfortably hold an A4 sheet of paper with printed circle destinations, such as at comic markets, even in an environment where it will be exposed to water resistance due to humidity for three days or to heat due to heat radiation.
If necessary, existing A-series vinyl business card holders can be converted for convenience.

Wishes for improvement are
[1] The pen holder is small, and the Hi-Tec C-Colleto is limited to a wooden ballpoint pen, which is difficult to use even with a dual-core pen.
In the next version, I think it would be more suitable for the product concept if the pen folder is cut down and a built-in bookmark can be used with a pen of the thickness the user prefers.
[2] It would be better to have a strap hole to prevent the pen from falling out of the case.

Thank you for your purchase.
Thank you very much for your high evaluation.
Thank you also for your valuable feedback. We will make use of it in our subsequent product development.
We hope you will continue to use our products.

Great to the touch!

I like the concept and texture of the product and have purchased a wallet, pen case, key case, and business card case (all in black from the Risho series).
This product also has the expected texture and feel, and I feel that I will be able to use it for a long time.
I thought it was a good initiative to have a product page with recommended pens that fit pen holders up to 10mm shaft diameter.
I am using a Muji aluminum hexagonal ballpoint pen with Jetstream refills based on other reviews.

Thank you for your purchase.
Thank you for your high praise.
We will be adding more pen introductions in the future. Please look forward to it.
We hope you will continue to use our products.


I bought this because I have a lot of lined paper at work and thought it would be a waste.
I am a fan of several types of wallets, so I wasn't worried about the quality.
I received it and used it for about 2 weeks.
As a result, I am very happy with it.
Just need to change my flow as I'm not used to organizing paper myself...

Thank you for your purchase.
We appreciate your high evaluation.
Whether you file the written paper or scan it and store it as data, I think it is important to process and store it in the right way.
We hope you will continue to use our service.

YO. Shino .
Hasamu® A4 -Liscio-

The texture is good. The diameter of the pen holder is too thin, which limits the number of pens I can carry with me. If it were a little thicker, I would give it 5 stars.

Thank you very much for purchasing this product from among many other products.
The pens that can be stored are slim pens with a shaft diameter of up to 10 mm.
Your feedback will be used for future product development.
Thank you very much.

I like it very much.

I like the smooth drawing feel and clean design. I am looking forward to seeing how the leather will change as I get used to it.

Thank you very much for purchasing this product from among many other products.
We are very encouraged by your feedback.
We hope you will continue to use our products.
Thank you very much.

Hiroshi . Red .
Simple and cool

The pen holder part does not fit pens of normal thickness. I looked for a good slim pen at a stationery specialty store.

Thank you very much for purchasing this product from among many other products.
The pens that can be stored are slim pens with a shaft diameter of up to 10 mm.
Your feedback will be used for future product development.
Thank you very much.