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公开(公告)号：US20230150035A1
公开(公告)日：2023-05-18
申请号：US17793036
申请日：2020-04-24
发明人： Haruyo FUKUI , Daiji TABAYASHI , Yoshihiro SAITO , Kazuya TOKUDA , Yoshiharu UTSUMI , Hajime TAKAMATSU
CPC分类号： B23B27/14 , C22C29/08 , B23B2228/105 , B23B2226/125
摘要： Provided is a cutting tool that can have a long tool life even when used to cut soft metals in particular. The cutting tool comprises a base body and a hard carbon film arranged on the base body, the hard carbon film includes an amorphous phase and a graphite phase, the density of the hard carbon film is no less than 2.5 g/cm3 and no more than 3.5 g/cm3, the degree of crystallinity of the hard carbon film is no more than 6.5%, and the average coordination number of the amorphous phase is no less than 2.5 and no more than 4.
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公开(公告)号：US20230068515A1
公开(公告)日：2023-03-02
申请号：US17793056
申请日：2020-04-24
发明人： Daiji TABAYASHI , Haruyo FUKUI , Yoshihiro SAITO , Kazuya TOKUDA , Yoshiharu UTSUMI , Hajime TAKAMATSU
摘要： Provided is a cutting tool comprising a base body and a hard carbon film arranged on the base body, in which the hard carbon film includes an amorphous phase and a graphite phase, the degree of crystallinity of the hard carbon film is no more than 6.5%, and the degree of orientation of the graphite phase is no more than 6.
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公开(公告)号：US20240302305A1
公开(公告)日：2024-09-12
申请号：US18279287
申请日：2021-04-28
发明人： Yutaka HOSHINA , Kazuya TOKUDA , Yoshihiro SAITO
IPC分类号： G01N23/2273
CPC分类号： G01N23/2273 , G01N2223/6116 , G01N2223/646
摘要： A data analysis device includes an input unit that receives a measured value of an optoelectronic signal from a photoelectron spectroscopic device measuring the optoelectronic signal generated from a sample by photoelectron spectroscopy and an analysis unit that analyzes the depth profile of the sample by minimizing a sum of square deviations between a theoretical value of the optoelectronic signal and the measured value of the optoelectronic signal using the theoretical value of the optoelectronic signal when the sample is modeled into a multilayer body including a plurality of layers. The analysis unit calculates a relative concentration so as to satisfy a maximum smoothness condition that the relative concentration of the chemical species of the sample smoothly changes in the plurality of layers of the multilayer body in minimizing the sum of square deviations.
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公开(公告)号：US20160147010A1
公开(公告)日：2016-05-26
申请号：US14943190
申请日：2015-11-17
IPC分类号： G02B6/02
CPC分类号： G02B6/02 , C03B37/01211 , C03B37/014 , C03B37/01807 , C03B37/01861 , C03B37/01892 , C03B2201/06 , C03B2201/07 , C03B2201/12 , C03B2201/20 , C03B2201/50 , C03B2203/22 , C03B2203/26 , C03B2205/40 , C03C3/06 , C03C13/045 , C03C2201/11 , C03C2201/12 , C03C2201/50 , C03C2203/40
摘要： An optical fiber containing an alkali metal and capable of reducing Rayleigh scattering loss is provided. An optical fiber has a core and a cladding made of silica glass and enclosing the core. The cladding contains fluorine and has a refractive index lower than the refractive index of the core. The core contains first group dopants selected from the group of Na element, K element, or a compound thereof at an average concentration of 0.2 ppm or more and 10 ppm or less. The core also contains second group dopants for reducing the viscosity of silica glass and having a diffusion coefficient of 1×10−12 cm2/s or more and smaller than the diffusion coefficient of the first group dopants, by an average concentration of 0.2 ppm or more at a temperature of 2000° C. to 2300° C.
摘要翻译： 提供含有碱金属并能够降低瑞利散射损失的光纤。 光纤具有由石英玻璃制成的芯和包层，并且包围芯。 包层含氟，折射率低于芯的折射率。 核心包含平均浓度为0.2ppm以上且10ppm以下的选自Na元素，K元素或其化合物的第一族掺杂剂。 该芯还含有第二组掺杂剂，用于降低石英玻璃的粘度，并且扩散系数为1×10-12cm2 / s以上且小于第一组掺杂剂的扩散系数，平均浓度为0.2ppm或 更高温度在2000°C至2300°C
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