1) Pen point polishing according to writing habit

People are unconscious when they hold a pen, and each person has a habit. In addition, each person writes a character with a distinctive personality, but there is as much habit as that. In addition to this, what kind of things to write on what kind of paper, what kind of work will be done for the fountain pen, data of the unconscious part and consciousness into data of the order form, sharpen pen point, make adjustment, make fountain pen easy to write I started doing things. A custom made was born also for a fountain pen like a suit or a shoe.

2) Traditional quadruple start thread(4 start thread)

Many fountain pens have a screw thread at the joint between the cap and the barrel. A normal screw only advances one thread per turn. Because this is a part that needs to be opened and closed many times a day, the quadruple start thread(4 start thread) technique was developed to reduce the number of turns. It advances four times more per turn. This technique is handed down as part of the making of classic fountain pens, but is now rare.

3) Use durable ebonite for screws, internal mechanisms, sections

Besides ebonite and celluloid, it was suitable for work of cutting out, and it was black water buffalo and tortoiseshell that adopted it as a material that is still grasping and pleasant. At that time, it was an important theme that the internal mechanism and the threaded part were strongly wear-resistant and used for a long time to incorporate safe ebonite. From this point forward, we also use ebonite for all internal mechanisms such as precious wood. Even if it takes time to produce, I want to make something of high quality.

4) Precious wood enjoying aging

Even if precious wood is used for many years, it is durable and you can enjoy aging.
Adopted Cocobollo wood in 2000, sandalwood urushi, amboyna burl urushi, African ebony, rosewood in 2009. There are wonderful precious woods all around the world, but it is not suitable for producing as a fountain pen. It has good processability, good hand touch, little madness, beautiful grain, enjoying aging and high scarcity. There is no fear of saying greed, but carelessly inked ink will soak into the shaft and it should not seem to mess up. At our company, we use material which air-dried wood relative density is high and it is difficult for water to permeate, and urushi is applied to those with low air-dried wood relative density. Too low air-dried wood relative low density is a policy not to use because it is dirty and crazy. For your reference please look at the air-dried wood relative density of the following wood. Resources of all precious trees are reduced,
Some are regulated by the Washington Convention and are difficult to obtain. We are thinking that we would like to make the best choices among those available now and work.
Air-dried wood relative density table

→ Specific gravity

5) Hardware

I thought that clip and ring metal fittings would like to make solid gold instead of plating treatment. Like a fountain pen, handmade rather than machine-made. Like Nib with 14K Solid Yellow Gold. All metal fittings are made by hand. Approximately 70 steps to make one clip.