Olympus Corporation

Nippon Sheet Glass Company, Limited

Takeshi Hidaka

Keiji Tsunetomo

Yasuhiro Saito

Shinya Okamoto

Yasushi Nakamura

Hirotaka Koyo

Akihiro Koyama

Junji Kurachi

Hiroaki Kasai

Tomonori Imamura

Masamichi Hijino

Jumpei Otake

Kinji Takiguchi

Kazuaki Uchida

Harutaka Kondo

Yasuhiro c/o Nippon Sheet Glass Co Ltd Saito

Akihiro c/o Nippon Sheet Glass Co Ltd Koyama

Hirotaka c/o Nippon Sheet Glass Co Ltd Koyo

Junji c/o Nippon Sheet Glass Co Ltd Kurachi

Shinya c/o Nippon Sheet Glass Co Ltd Okamoto

Keiji c/o Nippon Sheet Glass Co Ltd Tsunetomo

A welded structure, in which a second tubular member is welded to an inner circumference of a first tubular member made of metal, the second tubular member being made of metal and having an outer diameter smaller than an inner diameter of the first tubular member, includes welded portions at which a portion of the first tubular member and a portion of the second tubular member are melted and solidified, a surface melted and solidified from an inner circumferential surface side of the first tubular member toward an end surface of the second tubular member forms a smoothly-continuous curved surface, and the first and the second tubular members are bonded to each other. A portion of each of the welded portions is located on an outside of a projection region obtained by projecting the second tubular member onto an outer surface of the first tubular member.

Welded structure of tubular member and bending device

The present invention provides a method for manufacturing a medical basket treatment tool. The method for manufacturing a medical basket treatment tool having one or more wire formed using an alloy containing two or more metals includes a heating process of performing heat treatment on a target portion of at least one wire among the wires one or more times, the heat treatment irradiating the target portion with a laser with an irradiation fluence of 10J/cmor more and heating the target portion to become a predetermined temperature lower than the solid solubility limit of the alloy.

Method for manufacturing medical basket treatment tool and the medical basket treatment tool

In a laser welding method for an endoscope, when the thickness of the plate of an outer cylindrical member is set as h, the thickness of the plate of an inner coil-shaped member is set as h, the maximum welding energy of laser welding that does not change the inner and outer diameters of the outer cylindrical member in the place where the inner coil-shaped member is not placed inside the outer cylindrical member is set as E, and the minimum welding energy that enables the outer cylindrical member to be fixed by welding to the inner coil-shaped member is set as E, the spiral weld beads do not overlap, the welding depth H from the outer cylindrical member to the inner coil-shaped member holds true h&#x3c;H&#x3c;h+h, the welding energy E satisfies the expression of E&#x2266;E&#x2266;E.

Laser welding method and laser welded member for endoscope

A glass substrate processing method includes irradiating laser light L onto a glass substratesuch that the laser light L is focused within the glass substrate, thereby forming a high density areathat has a higher density than areas where the laser light L is not irradiated around the portion where the laser light L is focused; and performing chemical etching on the glass substrateusing an etching solution such that at least a portion of the high density area is allowed to remain, thereby forming a projectionon a surfaceof the glass substrate

Glass substrate processing method and glass component

The present invention improves a method of forming a surface unevenness using a difference in etching rates, and relaxes limitations on substrates in this method. In a method of the present invention, an uneven surface is formed by a method including applying pressure to a predetermined region in a surface of a thin film formed on a substrate, and etching a region including at least a portion of the predetermined region and at least a portion of the reminder of the surface that excludes the predetermined region. An etching rate difference within the thin film increases freedom in selecting a substrate material.

Method of manufacturing article having uneven surface

A processing method for glass substrate of the present invention includes: applying heat and external force to a glass substrate and then cooling it down to thereby form a compression stressed part having a different etching rate from that of other parts with respect to an etching reagent to be used, on the surface of the glass substrate and in the vicinity thereof, and performing chemical etching using the etching reagent on the glass substrate having the compression stressed part formed thereon, so as to form a relief on the surface of the glass substrate.

Processing method for glass substrate, processed glass product and stress applying apparatus

Growing community of inventors

Tokyo, Japan

Takeshi Hidaka