Give a push of "playfulness" from Nyanko-sensei and friends to your letters and notebooks!? A stamp collection for paper lovers, "Natsume Hankocho Yu-in Stamp Collection," inspired by "Yu-in," a hobby stamp from a good old era.
Okada Shokai Co., Ltd. has launched the "Natsume Hankocho Yu-in Stamp Collection," a series of playful stamps inspired by traditional Japanese "Yu-in" seals, designed for paper lovers. These stamps feature popular characters from "Natsume's Book of Friends," offering 18 unique designs in both round and square formats to decorate notebooks, letters, and gifts. The collection aims to bring smiles and foster communication through its charming designs and practical use in daily life.
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- 📰 Published: April 7, 2026 at 19:30
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Okada Shokai Co., Ltd. (Location: Osaka City, Osaka Prefecture; Manager: Kojiro Okayama), which operates the online stamp shop "Inkan Hanko SHOP Hankos," has begun selling the "Natsume Hankocho Yu-in Stamp Collection," a stamp for paper lovers inspired by the traditional hobby stamp "Yu-in," on its own online shop.
Yu-in are traditional, playful stamps with decorative meaning, pressed onto any desired part of calligraphy or painting works. They are characterized by having not only names and pseudonyms but also favorite words or designs carved into them, used to add color to a work. Unlike practical seals like official seals or bank seals, the appeal of Yu-in is that they can be easily incorporated into daily life, such as in letters, picture letters, and gift wrapping.
The "Natsume Hankocho Yu-in Stamp Collection" is a stamp planned with the motif of traditional Yu-in, stemming from the desire to create stamps for paper lovers that can cutely decorate notebooks, letters, and the like.
There are 18 types of character visuals available. Each can be chosen from round and square shapes, with a handmade-like, tasteful feel. A characteristic feature is that you can choose your favorite character, from Nyanko-sensei with various expressions, to Nyanko-sensei's true form, Madara, to the story's protagonist, Takashi Natsume, Natsume's friend Kaname Tanuma, and other yokai such as Shuichi Natori, Seiji Matoba, as well as Misuzu, intermediate yokai, and Hiiragi.
The "Natsume Hankocho Yu-in Stamp Collection" has different product specifications for the main body depending on whether a round or square shape is chosen. If a round shape is chosen, an ink-impregnated stamp with a calm black body is used. If a square shape is chosen, it becomes a stylish purple-colored stamp where the stamp part opens with a single touch, allowing for continuous stamping. The square type also comes with a ball chain, allowing it to be carried as a portable stamp by attaching it to a bag or pouch.
In addition to names, you can also create stamps with the following contents. Familiar characters like Nyanko-sensei will cutely decorate not only notebooks and bullet journals but also paper items such as letters and picture letters. The stamp surface size is 15mm for both round and square types.
The "Natsume Hankocho Yu-in Stamp Collection" is a stamp for paper lovers that cutely decorates notebooks, letters, and the like with Nyanko-sensei, his true form Madara, the story's protagonist Takashi Natsume, and yokai such as intermediate yokai and small foxes.
We will continue to create stamps that blend into daily life, bringing smiles and fostering communication with every press.
Yu-in are traditional, playful stamps with decorative meaning, pressed onto any desired part of calligraphy or painting works. They are characterized by having not only names and pseudonyms but also favorite words or designs carved into them, used to add color to a work. Unlike practical seals like official seals or bank seals, the appeal of Yu-in is that they can be easily incorporated into daily life, such as in letters, picture letters, and gift wrapping.
The "Natsume Hankocho Yu-in Stamp Collection" is a stamp planned with the motif of traditional Yu-in, stemming from the desire to create stamps for paper lovers that can cutely decorate notebooks, letters, and the like.
There are 18 types of character visuals available. Each can be chosen from round and square shapes, with a handmade-like, tasteful feel. A characteristic feature is that you can choose your favorite character, from Nyanko-sensei with various expressions, to Nyanko-sensei's true form, Madara, to the story's protagonist, Takashi Natsume, Natsume's friend Kaname Tanuma, and other yokai such as Shuichi Natori, Seiji Matoba, as well as Misuzu, intermediate yokai, and Hiiragi.
The "Natsume Hankocho Yu-in Stamp Collection" has different product specifications for the main body depending on whether a round or square shape is chosen. If a round shape is chosen, an ink-impregnated stamp with a calm black body is used. If a square shape is chosen, it becomes a stylish purple-colored stamp where the stamp part opens with a single touch, allowing for continuous stamping. The square type also comes with a ball chain, allowing it to be carried as a portable stamp by attaching it to a bag or pouch.
In addition to names, you can also create stamps with the following contents. Familiar characters like Nyanko-sensei will cutely decorate not only notebooks and bullet journals but also paper items such as letters and picture letters. The stamp surface size is 15mm for both round and square types.
The "Natsume Hankocho Yu-in Stamp Collection" is a stamp for paper lovers that cutely decorates notebooks, letters, and the like with Nyanko-sensei, his true form Madara, the story's protagonist Takashi Natsume, and yokai such as intermediate yokai and small foxes.
We will continue to create stamps that blend into daily life, bringing smiles and fostering communication with every press.