Stationery Designed for Everyday Life
At KOKUYO, our goal is to create stationery that seamlessly fits into your daily routine. Every product is crafted with a focus on comfort and usability, aiming to offer a better user experience and bring new value to everyday tasks.
In this post, we’re introducing three standout products that embody KOKUYO’s philosophy and unique approach:
WP Roller Ball: Designed to give you an incredibly smooth writing experience,
Harinacs: A revolutionary stapler that’s both safe and eco-friendly, without the need for metal staples,
Dotliner: A glue tape runner that delivers precise and clean results every time.
These products take simple tasks like writing, binding, and sticking, and transform them into a more enjoyable experience.
WP Roller Ball 0.5mm

Writing. Moving a pen across a notebook or piece of paper.
At first glance, it may seem like an unremarkable, everyday activity. But when you think about it, amazing technologies, brilliant ideas, epic stories, and soul-stirring music— all of them likely began with the simple act of writing.
We believe there will always be things only achievable through the act of writing. That is why we have created the WP series, with the goal of making """"writing"""" a richer and more enjoyable experience.
With its light, comfortable writing feel, the way the lines appear on paper, and its sophisticated, high-quality body, WP Roller Ball pen lets your writing flow so effortlessly that your thoughts and creativity take center stage.
This pen makes you want to get lost in the act of writing— because writing itself becomes a joy!
When you use the WP Roller Ball, you’ll experience the ultimate freedom, almost friction-free as you write. With low viscosity ink, the roller ball glides smoothly in every direction, giving you the freedom to write expressively.
The secret to this feeling of freedom? It's in the details.

① Light Writing Feel
Instead of a typical gel ink ballpoint pen tip with a micro-spring in the nib, the WP Roller Ball pen uses a mechanism with a fiber core that guides the ink inside the tip. This design creates a light writing feel and subtle variation in writing strokes, and ensures high-quality performance overall.
② Ink Viscosity
The low-viscosity, runny ink flows generously, providing an incredibly light writing feel. It feels almost like the pen is gliding on water, with no friction, allowing you to move it freely in any direction.

③ Ink Darkness and Lightness
With its low viscosity and abundant ink flow, the WP Roller Ball pen can achieve varying shades of ink, just like a fountain pen. Write quickly for fine lines, or slow down for thick ones. This allows you to express yourself in a variety of ways with rich detail.


When you feel like journaling, writing a heartfelt letter, or just letting your thoughts flow...
Why not let the WP Roller Ball help bring those thoughts to life?
Stapleless Stapler Harinacs Handy

Binding papers together might feel like a small task, but it can be more meaningful than it seems.
This small act connects one idea to another, layers information upon information, and brings thoughts together — becoming a vital bridge to our understanding.
That is why we want to make the act of binding a gentler, smarter experience. This wish gave birth to the Harinacs, a staple-free stapler.
Using revolutionary staple-free technology, an arrow-shaped cut is made and folded over, 'catching' your stack of paper and holding it securely. This ensures your papers stay together without the need for a metal staple.
With that, binding got a whole lot safer, easier - and the more you use it, the harder it will be to part with!
With its special blade, the Harinacs skillfully processes paper and binds it without using any metal staples, and it can bind up to 10 sheets securely.
Here are 3 features that make it truly innovative:

① Safety
Since no sharp staples are used, there’s no risk of pricking your fingers. It’s safe to use even around small children.
② Eco-friendliness
Since there are no metal staples, you won’t have to worry about removing staples when recycling papers, and the whole process is smoother and reducing the environmental impact.
③ Simple Operation
Just insert your paper, press the lever, and with light pressure, your papers are securely fastened. It’s so easy to use, whether it’s on your desk or on the go, and you'll never have to refill it!


From everyday use to simple crafts, Harinacs proposes a new standard that makes your binding safer, more comfortable, and sometimes even brings out your creativity.
Dotliner Tape Glue Body Refill type Strong adhesive

Sticking' may seem like just another simple daily task.
But important memories, creative ideas, handmade gifts, and beautiful albums — everything begins with the act of ""sticking"" and new value comes to life through it.
But dealing with messy glue or wrangling bits of celotape can take a beautiful moment and turn it into a frustrating experience. That’s why we wanted to make ""sticking"" a more comfortable and creative experience. Enter Kokuyo's Dotliner Glue Tape. The Dotliner’s precise adhesive system, smart operation, and consistent quality make your sticking more fun, freeing, and enjoyable.
Sticking whenever and however you want — exactly as you wish. With that in mind, the Dotliner continues to evolve. With its unique transfer mechanism, you can apply adhesive from start to finish with even strength, without interruption. Here’s what makes th Dotliner stand out:
① Light Drag Feel
The Dotliner roller tip provides a smooth, light drag feel with reliable adhesion, making your work go smoothly. It’s that satisfying feeling of rolling.
② Clean Use
Being tape-based, the Dotliner doesn’t leave a sticky mess, and you don’t need to wait for it to dry. Your hands and surrounding area stay clean. And don't worry — your paper won’t wrinkle, and the finish will remain perfectly neat!

③ Wide Range of Options
Choose from a variety of types to suit your needs. From strong types to removable ones, we cater to all kinds of needs. Plus, you can get refills for each type, so you can keep using your Dotliner for a long time.
④ Supports All Your "Sticking" Needs
The adhesive is acid-free, so it won’t cause discoloration on photos or paper. Perfect for scrapbooking!


As everyday stationery or a craft companion,
Dotliner is a trusted partner that makes your sticking more creative and comfortable.
Stick, create, and let your creativity flow with Dotliner!