Enlarged photo of
eyeless needle hole

In 1976, five years after the start of research, we became the first in the world to produce eyeless needles using laser beam drilling technology. The bonding technique, whereby the suture thread is inserted and bonded to the needle hole, makes damage to the tissues less likely and enables exceptionally smooth penetration.

・Laser microfabrication technology

・Micro-blade grinding technology

・Suture attachment technology

・Micro-press processing
　technology

・Edge processing technology

・Extra-fine material curve
　processing technology

・Extra-fine forging technology

・Extra-fine material cutting
　technology

・Extra-fine metal centerless
　processing technology

・Extra-fine metal pyramid
　grinding technology

・Extra-fine metal pyramid
　twisting technology

・Extra-fine metal helical
　grinding technology

・Barb processing technology

・Abrasive grain electrodeposition
　technology

・Staple processing technology
　for medical treatment

・Micro heat-treatment technology

Standard stainless steel

MANI hard -fiber stainless steel

We pursued opposing qualities such as toughness and hardness to create our original material, MANI hard-fiber stainless steel. By adding our original "seisen" process to 18-8 stainless steel, we were able to develop flexible and corrosion-resistant needles.

・Metallic structure control
　technology

・Fiber structure control technology

・Metallic composition (element)
　control technology

・Metallic surface treatment
　technology

・Extra-fine material hardness
　control technology

・Work hardening control
　technology

・Stainless steel heat-treatment
　technology

・Stainless steel residual stress
　removal technology

・Stainless steel-carbide welding
　technology

We develop testing and evaluation machines in addition to forming machines in order to draw maximum benefit from the material characteristics and original technologies arising out of our accumulated research results. With this original testing and evaluation technology, we pursue "the best quality in the world".

・Image processing inspection
　technology

・Penetration performance
　evaluation technology

・Helical shape inspection
　technology

・Wire bending test technology

・Ductility test technology

・Sterilization evaluation technology

・Press/bending technology

・Extra-fine material conveying
　technology

・Marking technology

・Masking technology

・Abrasive grain (grain size)
　control technology

・Insert molding and joint
　technology

・Superelastic alloy processing
　technology

・Aseptic wrapping technology

・Antifriction coating technology

・Knife sharpening technology

・Flexibility improvement
　technology

・Penetration, suturing, ligating
　and related technology

・Suture needle, suture, and
　suturing
　device technology

・Endodontic instrument tool
　technology

・Rotary cutting instrument
　technology