Sumitomo Electric Industries, Limited

Sumitomo Electric Hardmetal Corp.

Japan Fine Ceramics Center

Other

Mitsubishi Materials Corporation

Kyoto University

A.l.m.t. Corporation

Research Institute of Innovative Technology for the Earth

D.n.a. Metal Company, Limited

Yoshiki Nishibayashi

Natsuo Tatsumi

Takahiro Imai

Akihiko Ueda

Hitoshi Sumiya

Hiromu Shiomi

Shin-ichi Shikata

Yutaka Kobayashi

Yoshiyuki Yamamoto

Naoji Fujimori

Tadashi Tomikawa

Yutaka Ando

Akihiko Namba

Hideaki Nakahata

Takuji Okahisa

Kiichi Meguro

Shinichi Shikata

Kazuo Nakamae

Takuya Nohara

Yuichiro Seki

Toshiya Takahashi

Tsukasa Hayashi

Hiroshige Deguchi

Kensei Hamaki

Hiromi Nakanishi

Masatoshi Majima

Takashi Matsuura

Tomoyuki Awazu

Issei Satoh

Takeshi Kobayashi

Shuichi Satoh

Kazuhiro Ikeda

Tomihito Miyazaki

Kazutaka Fujiwara

Hiroshi Kawarada

Tetsuya Hattori

Tsuneo Nakahara

Kouji Yasuda

Ryo Toyoshima

Toshiyuki Nohira

Naohiro Toda

Makoto Yukawa

Minori Teramoto

Takuya Kinoshita

Bunya Suemitsu

Shigetoshi Sumimoto

Kouji Hidaka

Maoji Fujimori

Shigeki Maeda

Yutaka Dept Of Elect Eng And Electronics Ando

A diamond magneto-optical sensor includes: a diamond including a color center with an electronic spin, a transmission circuit that transmits electromagnetic waves, and an irradiation unit that irradiates the diamond with electromagnetic waves transmitted by the transmission circuit, wherein the transmission circuit includes an impedance converter that reduces or increases, with respect to the irradiation unit, the impedance of an electromagnetic source for outputting electromagnetic waves.

Diamond magneto-optical sensor

A diamond sensor unit includes: a diamond having a color center with electron spin; an excitation light irradiation part that irradiates the diamond with excitation light; a first patch antenna that receives electromagnetic waves; an electromagnetic wave irradiation part that irradiates the diamond with the electromagnetic waves received by the first patch antenna; a detection part that detects radiated light radiated from the color center of the diamond after the diamond is irradiated with the excitation light and the electromagnetic waves; and an optical waveguide that transmits the excitation light and the radiated light.

Diamond sensor unit

Provided are a diamond composite body capable of shortening a separation time for separating a substrate and a diamond layer, the substrate, and a method for manufacturing a diamond, as well as a diamond obtained from the diamond composite body and a tool including the diamond. The diamond composite body includes a substrate including a diamond seed crystal and having grooves in a main surface, a diamond layer formed on the main surface of the substrate, and a non-diamond layer formed on a substrate side at a constant depth from an interface between the substrate and the diamond layer.

Diamond composite body, substrate, diamond, tool including diamond, and method for manufacturing diamond

Provided is a synthetic single-crystal diamond containing nitrogen. In an X-ray absorption fine structure thereof, a ratio I/Ibetween an intensity Iof a peak which appears at an energy of 405±1 eV and has a full width at ¾ maximum of 3 eV or more and an intensity Iof a peak which appears at an energy of 412±2 eV is less than 1.5.

Synthetic single crystal diamond, tool including the same and method of producing synthetic single crystal diamond

A single-crystal diamond includes n types of regions different in total concentration of an impurity, the n types of regions being observed in an observed surface being in parallel to a (110) face. Each of the n types of regions has an area not smaller than 0.1 μm. At least one of a first line, a second line, and a third line on the observed surface crosses a boundary between the n types of regions at least four times. The first line, the second line, and the third line are in parallel to a <−110> direction and have a length of 1 mm. A midpoint of the first line corresponds to the center of gravity of the observed surface. The second line and the third line are distant from the first line by 300 μm in a <001> direction and a <00−1> direction, respectively.

Single-crystal diamond and method of manufacturing the same

Provided is a method for manufacturing a hard carbon-based coating. The method includes: a step A of preparing a film-forming apparatus including a power supply device and a discharge electrode containing a carbon material, and a substrate having a surface on which a coating is to be formed; and a step B of causing the film-forming apparatus to repeatedly generate a discharge between the discharge electrode and the substrate, to form a hard carbon-based coating on the surface.

Method for manufacturing hard carbon-based coating, and member provided with coating

A method of manufacturing a diamond substrate includes: forming an ion implantation layer at a side of a main surface of a diamond seed substrate by implanting ions into the main surface of the diamond seed substrate; producing a diamond structure by growing a diamond growth layer by a vapor phase synthesis method on the main surface of the diamond seed substrate, after implanting the ions; and performing heat treatment on the diamond structure. The performed heat treatment causes the diamond structure to be separated along the ion implantation layer into a first structure including the diamond seed substrate and failing to include the diamond growth layer, and a diamond substrate including the diamond growth layer. Thus, the method of manufacturing a diamond substrate is provided that enables a diamond substrate with a large area to be manufactured in a short time and at a low cost.

Method of manufacturing diamond substrate, diamond substrate, and diamond composite substrate

This method for producing a body obtained by processing a solid carbon-containing material includes: a step of preparing the solid carbon-containing material having at least a surface composed of solid carbon; and a step of processing the solid carbon-containing material. The step of processing the solid carbon-containing material includes: a sub-step of forming non-diamond carbon by heat-treating the solid carbon in the surface of the solid carbon-containing material; and a sub-step of removing at least a part of the non-diamond carbon.

Body obtained by processing solid carbon-containing material and producing method thereof

A method for producing a body obtained by processing a solid carbon-containing material, the method includes: preparing the solid carbon-containing material composed of a material having at least a surface containing solid carbon; forming a gas phase fluid containing at least one of an active gas or an active plasma which are active against the solid carbon; and processing the solid carbon-containing material by injecting the gas phase fluid onto at least a part of the surface of the solid carbon-containing material.

Body obtained by processing solid carbon-containing material, producing method thereof, and producing apparatus thereof

A carbon material has at least either a peak related to diamond bonds, or a peak related to diamond-like bonds, appearing in a range of 1250 to 1400 cmin a spectrum measured by Raman scattering spectrometry, and a full width at half maximum of a maximum peak, or each of full widths at half maximum of the maximum peak and a second largest peak, among peaks appearing in the range of 1250 to 1400 cm, has a signal less than 100 cm.

Carbon material and method for manufacturing carbon material

A method of manufacturing a diamond by a vapor phase synthesis method includes: preparing a substrate including a diamond seed crystal; forming a light absorbing layer lower in optical transparency than the substrate by performing ion implantation into the substrate, the light absorbing layer being formed at a predetermined depth from a main surface of the substrate; growing a diamond layer on the main surface of the substrate by the vapor phase synthesis method; and separating the diamond layer from the substrate by applying light from a main surface of at least one of the diamond layer and the substrate to allow the light absorbing layer to absorb the light and cause the light absorbing layer to be broken up.

Method of manufacturing diamond, diamond, diamond composite substrate, diamond joined substrate, and tool

A diamond magnetic sensor including diamond containing at least one NVcenter, a microwave generator which emits microwaves to the diamond, an excitation light generator which emits excitation light to the NVcenter of the diamond, and a fluorescence sensor which receives fluorescence produced from the NVcenter of the diamond includes a pattern measurement apparatus which measures a temporal change pattern of magnetic field intensity based on variation in fluorescence intensity sensed by the fluorescence sensor.

Diamond magnetic sensor

A diamond die includes a diamond provided with a hole for drawing a wire material, the diamond being a CVD single-crystal diamond, an axis of the hole being inclined relative to a normal direction of a crystal plane of the diamond.

Diamond die

Growing community of inventors

Itami, Japan

Yoshiki Nishibayashi