Shinmaywa Industries, Ltd.

Kai R$d Center Co., Ltd.

Thoratec Corporation

Nagata Seiki Co., Ltd.

Kensuke Uemura

G Alexey Remnev

V Konstantin Shalnov

Takeshi Tsubouchi

Takehisa Mori

Hiroshi Ohtsubo

Atsushi Okawa

Tsukasa Tamaoki

Remnev G Alexey Alexey

The invention addresses the problem of providing an edged tool such as a surgical blade or a razor blade that is durable and sharp, and a manufacturing method therefor. The problem is solved by an edged tool manufacturing method provided with a process of treating a metal base material, which has a machined surface obtained by machining, using a plasma generated in an atmosphere filled with a mixed gas having a main gas and a reaction gas as the main components.

Edged tool, method of manufacturing the same, and plasma device for manufacturing the same

A de-coating method includes: exposing a coated body in which a coating made of an inorganic material is formed on a surface of the metal body to ion flows to peel off the coating from the metal body, wherein the coated body is placed at an ion flow-concentrated portion where two or more ion flows overlap each other, and is exposed to the ion flows without addition of a positive or negative bias to the coated body. As gases for use in generating ions from plasma, oxygen and CFthat promote de-coating through a chemical reaction are preferably used in addition to Ar that performs de-coating under the physical action of ion collision and stabilizes plasma.

Covering material stripping method and stripping device using ion irradiation

Provided is a method for producing a puncture needle, which causes no significant pain during use such as when pierced. The method for producing the puncture needle includes the step of processing a pipe-like metallic base material having at one end a grinding surface obtained by machine work with plasma generated in an atmosphere filled with a mixed gas mainly including a main gas and a reaction gas.

Method for manufacturing puncture needle

A manufacturing method for medical equipment involves electron beam irradiating a titanium or titanium alloy substrate surface that has at least been machined, whereby platelet adhesion of the surface to be contacted by blood is reduced. The manufacturing method for medical equipment can also use a specific pre-processing method and an electron beam irradiation method to reduce the platelet adhesion of the surface which is to be contacted with blood, to suppress the formation of minute depressions (craters) in the surface, which can occur due to the irradiation by an electron beam.

Manufacturing method for medical equipment for reducing platelet adhesion on a surface in contact with blood

In a vacuum chamber, the edge of each blade group is subjected to an ion beam treatment under predetermined conditions using a plasma ion gun and argon as a medium, and is subjected to a plasma ion implantation of nitrogen plasma under predetermined conditions using a plasma ion implantation gun. As a result, it is possible to provide a blade member having an edge of a cutting quality enhanced by increasing the sharpness, a blade member having an edge of a rigidity enhanced by increasing the hardness, and a working apparatus capable of working those edges efficiently.

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Takarazuka, Japan

Kensuke Uemura