Nippon Electric Glass Co., Ltd.

Industrial Technology Research Institute

Naotoshi Inayama

Takahide Fujii

Michiharu Eta

Takayuki Noda

Setsuo Uchida

Sho Itoh

Hiroki Mori

Yasuhiro Matsumoto

Yasuo Teranishi

Riku Yamashiro

Takayoshi Saito

Jyun-Kai Ciou

Kuo-Hsin Huang

Mutsumu Fukada

Chang-Ying Chen

Yung-Min Hsieh

Takehiko Isomoto

A production method for a glass roll includes a start preparation step (S) of feeding-out a first lead film (LF) coupled to a starting end portion (GFa) of a first glass film (GF) from an unwinding device () and allowing a winding device () to wind the first lead film (LFafter passing of the first lead film (LF) through a thermal film-forming device (),). The start preparation step (S) includes a temperature increasing step of causing the thermal film-forming device () to be increased in temperature to a film-forming temperature. The first glass film (GF) reaches the thermal film-forming device () before the thermal film-forming device () is increased in temperature to the film-forming temperature.

Glass roll production method

In a manufacturing method of a glass roll, a transport device transports a glass film coupled to lead films via coupling portions. The transport device separates the lead films and/or the coupling portions from a heating roller when the lead films and/or the coupling portions pass by the heating roller.

Manufacturing method and manufacturing device of glass roll

Provided are a glass film layered body and a method for manufacturing a glass film layered body whereby glass film yield and nondefective product rate are enhanced while handling properties of the glass film are enhanced. A method for manufacturing a glass film layered body fabricated by layering a glass film on a support glass, the method provided with an ultrasonic wave application step for applying ultrasonic waves to at least peripheral parts of the glass film and the support glass, a cleaning step for cleaning the glass film and support glass which have undergone the ultrasonic wave application step, and a layering step for layering the glass film on the support glass which has undergone the cleaning step and fabricating a glass film layered body.

Method for manufacturing glass film laminate, glass film laminate, and method for manufacturing electronic device

A cutting method of a multilayer structure containing a brittle layer is provided. The cutting method includes: cutting the multilayer structure to form a cut edge; removing a material of the multilayer structure other than the brittle layer along the cut edge, wherein the material of the multilayer structure other than the brittle layer has a width ranging from 1 micron to 2 millimeter; and modifying an edge of the brittle layer remaining after removing the material of the multilayer structure other than the brittle layer by a laser beam.

Cutting method of a multilayer structure containing a brittle layer

Provided is a cutting method for a glass sheet, comprising radiating a laser beam to a cutting portion (C) of a glass sheet (G) having a thickness of 500 &#x3bc;m or less to fuse the glass sheet (G), wherein a narrowest gap between fused end surfaces (Gaand Gb) of the glass sheet (G), which face each other in the cutting portion (C), is managed to satisfy a relationship of 0.1&#x2266;b/a&#x2266;2, where 'a' is a thickness of the glass sheet (G) and 'b' is the narrowest gap.

Cutting method for glass sheet and glass sheet cutting apparatus

Provided is a laser fusing method for a glass sheet, including: cutting the glass sheet (G) by irradiating the glass sheet (G) with a laser (L) from a front surface (S) side thereof along a preset cutting line (X) extending in a surface direction of the glass sheet (G); and jetting a shaping gas (A) so as to form a flow along at least one of the front surface (S) and a back surface (B) of the glass sheet (G), the shaping gas (A) passing through an irradiation portion (C) of the laser (L).

Laser fusion-cutting method for plate glass

A method of manufacturing a glass sheet laminate to be formed by integrally laminating two glass sheets includes: laminating the two glass sheets by bringing surfaces thereof in a vicinity of an outer peripheral portion into surface contact with each other; performing laser fusing so as to cut and remove a part of a surface contact portion under a state in which the surface contact portion has a surface roughness of 2.0 nm or less; and processing a fusing end surface of the surface contact portion into a curved surface and sealing the fusing end surface with heat generated when the laser fusing is performed.

Glass sheet laminate and method for producing same

Provided is a manufacturing method for a glass sheet, including: fusing a glass ribbon (G) by irradiating the glass ribbon (G) with a laser (L) along a preset cutting line (X), which is a boundary between a product portion (G) to be used as a product and a non-product portion (G) to be discarded, and jetting an assist gas (A) onto molten glass (M) generated by melting the glass ribbon (G) through heating with the laser (L) so as to remove the molten glass (M) by scattering the molten glass (M); and breaking the non-product portion (G) so as to discard the non-product portion (G), the assist gas (A) being jetted from the product portion (G) side with respect to the preset cutting line (X), to thereby cause scattered pieces of the molten glass (M) to adhere to the non-product portion (G) as pieces of dross (D).

Sheet glass manufacturing method and manufacturing device

A method of cleaving and separating a glass sheet includes a cleaving step of cleaving a glass sheet along preset cleaving lines by a laser cleaving method, and a separation step of separating adjacent pieces of the cleaved glass sheet from each other. The cleaving step is performed under a state in which the glass sheet is placed on support members provided respectively in segment regions, which are segmented by the preset cleaving lines. The separation step is performed by separating the support members from each other in adjacent segment regions.

Method of cleaving and separating a glass sheet and apparatus for cleaving and separating a glass sheet

A glass sheet cutting device fuses and divides a glass substrate using a preset cutting line as a boundary while supplying an assist gas and a laser beam from above the glass substrate along the preset cutting line of the glass substrate. The glass sheet cutting device includes a first laser irradiator for radiating a fusing laser beam and a second laser irradiator for radiating an annealing laser beam. Through a fusing gap formed between fused end surfaces by fusing, the second laser irradiator radiates the annealing laser beam obliquely from above onto the fused end surface to be annealed.

Glass sheet cutting method

Provided is a method of cleaving and separating a glass sheet (G), the method comprising: a cleaving step of cleaving the glass sheet (G) along preset cleaving lines (X, Y) by a laser cleaving method; and a separation step of separating adjacent pieces of the cleaved glass sheet (G) from each other, wherein the cleaving step is performed under a state in which the glass sheet (G) is placed on a sheet (S) having stretchability, and the separation step is performed by stretching the sheet (S).

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Shiga, Japan

Naotoshi Inayama