SEIRIN needles are used for holding samples of asteroid Ryugu particles.
SEIRIN's technology is also applied in the field of science.
Our needle was used to hold the sample brought back by Hayabusa 2 (asteroid probe).
Requested by relevant research center of the Public Utilities Foundation

This is a sample taken back from the asteroid Ryugu in the Hayabusa 2 asteroid exploration research. A needle-shaped object with a flat tip picks up the sample and observes it with an electron microscope.
The above image was provided by Dr. Megumi Matsumoto of Tohoku University.
Sample is about 20-50 μm
The above image was provided by Dr. Megumi Matsumoto of Tohoku University.
Sample is about 20-50 μm
Reference image
Click here for Hayabusa2

Launch of the Hayabusa 2 /H-IIA Rocket No. 26
Specifics : JAXA Digital Archives
Credit : JAXA
https://www.hayabusa2.jaxa.jp/en/
Specifics : JAXA Digital Archives
Credit : JAXA
https://www.hayabusa2.jaxa.jp/en/
Ryugu particle brought back by Hayabusa 2

Curation process
Optical microscope image of the A chamber (inside the collection container)
(Credit: JAXA)
Optical microscope image of the A chamber (inside the collection container)
(Credit: JAXA)
Needle specifications
Material: 64 titanium
Longitude: φ0.5 Length: 11mm
Number: 200
Longitude: φ0.5 Length: 11mm
Number: 200
This customer is quite unique, even among those we serve through our contract manufacturing.
While our company primarily manufactures needles used in medical devices, we also offer custom needle processing services. We regularly receive inquiries from public research institutions as well. However, I did not expect to be involved in such a big project.
(As the person in charge, I’m truly honored to be involved in this project.)
(As the person in charge, I’m truly honored to be involved in this project.)
[Technical] Processed needle

In this project, we manufactured and provided a pointed needle made of Ti-64, a non-magnetic alloy composed of relatively light elements
If you take a closer look at the tip…
If you take a closer look at the tip…
[Technical] Is the needle tip flat?

It seems that a shape with a cut-off tip was required in order to hold the sample.
Cut-off processing of the tip was performed by the customer's supplier.
Cut-off processing of the tip was performed by the customer's supplier.
Custom Processing Services
Our company not only manufactures needles for medical devices (acupuncture needles) but also processes needles according to the ordered materials and shapes.
Of course, since we primarily utilize our existing equipment, the processing will be limited to what can be handled in-house.
The processing range is limited, but please feel free to contact us.
(* Made-to-order production of acupuncture needles is not performed in principle.)
Click here for the contact form
Please do not unauthorized reproduction of the published images.
Of course, since we primarily utilize our existing equipment, the processing will be limited to what can be handled in-house.
The processing range is limited, but please feel free to contact us.
(* Made-to-order production of acupuncture needles is not performed in principle.)
Click here for the contact form
Please do not unauthorized reproduction of the published images.