Other

Venex Co., Ltd

Vision Development Co., Ltd

Tadamasa Fujimura

Masato Sone

Shigeru Shiozaki

Valeri Yu Dolmatov

Junji Watanabe

Mituru Akashi

Hideo Yoshida

Kiyohito Sakon

Nobutaka Kajiura

Taichi Nakamura

Toshiharu Suganuma

Fibers containing nano-sized diamond and platinum nanocolloid, and bedding formed thereby.

Fibers comprising nanodiamond and platinum nanocolloid, and bedding formed thereby

An aqueous suspension liquid of finely divided diamond particles comprising 0.05 to 160 parts by weight of a finely divided diamond particles in 1000 parts of water, wherein; (i) the finely divided diamond particles have an element composition consisting mainly of 72 to 89.5% by weight of carbon, 0.8 to 1.5% of hydrogen, 1.5 to 2.5% of nitrogen, and 10.5 to 25.0% of oxygen; (ii) and, almost all of said diamond particles are in the range of 2 mu to 50 nm in diameters thereof (80% or more by number average, 70% or more by weight average), (iii) and, said finely divided diamond particles exhibit a strongest peak of the intensity of the Bragg angle at 43.9&#xb0; (20&#xb1;20), strong and characteristic peaks at 73.5&#xb0; (20&#xb1;20) and 95&#xb0; (20&#xb1;2&#xb0;), a warped halo at 17' (20&#xb1;2&#x2032;), and no peak at 26.5&#xb0;, by X-ray diffraction (XRD) spectrum analysis using Cu-Ku radiation when dried, (iv) and, specific surface area of said diamond particles when dry state powder is not smaller than 1.50&#xd7;105 m2/kg, and substantially all the surface carbon atoms of said particles are bonded with hetero atoms, and the total absorption space of said powder is 0.5 m3/kg or more, when dried. The diamond particles are very active and dispersible in aqueous liquid in stable, and have essentially same mechanical properties as that of usual diamonds.

Stable aqueous suspension liquid of finely divided diamond particles, metallic film containing diamond particles and method of producing the same

An aqueous suspension liquid of finely divided diamond particles comprising 0.05 to 160 parts by weight of a finely divided diamond particles in 1000 parts of water, wherein; (i) the finely divided diamond particles have an element composition consisting mainly of 72 to 89.5% by weight of carbon, 0.8 to 1.5% of hydrogen, 1.5 to 2.5% of nitrogen, and 10.5 to 25.0% of oxygen; (ii) and, almost all of said diamond particles are in the range of 2 nm to 50 nm in diameters thereof (80% or more by number average, 70% or more by weight average), (iii) and, said finely divided diamond particles exhibit a strongest peak of the intensity of the Bragg angle at 43.9&#xb0; (2&#x3b8;&#xb1;2&#xb0;), strong and characteristic peaks at 73.5&#xb0; (2&#x3b8;&#xb1;2&#xb0;) and 95&#xb0; (2&#x3b8;&#xb1;2&#xb0;), a warped halo at 17&#xb0; (2&#x3b8;&#xb1;2&#xb0;), and no peak at 26.5&#xb0;, by X-ray diffraction (XRD) spectrum analysis using Cu&#x2014;K&#x3b1; radiation when dried, (iv) and, specific surface area of said diamond particles when dry state powder is not smaller than 1.50&#xd7;10m/kg, and substantially all the surface carbon atoms of said particles are bonded with hetero atoms, and the total absorption space of said powder is 0.5 m/kg or more, when dried. The diamond particles are very active and dispersible in aqueous liquid in stable, and have essentially same mechanical properties as that of usual diamonds.

An aqueous suspension liquid of finely divided diamond particles comprising 0.05 to 160 parts by weight of a finely divided diamond particles in 1000 parts of water, wherein; (i) the finely divided diamond particles have an element composition consisting mainly of 72 to 89.5% by weight of carbon, 0.8 to 1.5% of hydrogen, 1.5 to 2.5% of nitrogen, and 10.5 to 25.0% of oxygen; (ii) and, almost all of said diamond particles are in the range of 2 nm to 50 nm in diameters thereof (80% or more by number average, 70% or more by weight average), (iii) and, said finely divided diamond particles exhibit a strongest peak of the intensity of the Bragg angle at 43.9&#xb0; (2&#x3b8;&#xb1;2&#xb0;), strong and characteristic peaks at 73.5&#xb0; (2&#x3b8;&#xb1;2&#xb0;)and 95&#xb0; (2&#x3b8;&#xb1;2&#xb0;), a warped halo at 17&#xb0; (2&#x3b8;&#xb1;2&#xb0;), and no peak at 26.5&#xb0;, by X-ray diffraction (XRD) spectrum analysis using Cu&#x2014;K&#x3b1; radiation when dried, (iv) and, specific surface area of said diamond particles when dry state powder is not smaller than 1.50&#xd7;10m/kg, and substantially all the surface carbon atoms of said particles are bonded with hetero atoms, and the total absorption space of said powder is 0.5 m/kg or more, when dried. The diamond particles are very active and dispersible in aqueous liquid in stable, and have essentially same mechanical properties as that of usual diamonds.

The present invention provides a carrier for immobilizing a bio-derived polymer, and especially, the present invention provides a carrier of diamond fine particle for immobilizing a DNA, RNA, protein and peptide, as well as a DNA chip substrate, a carrier for trapping virus and a vaccine. The carrier is prepared by the steps comprising: preparing an initial mixture including a diamond and a non-diamond by means of explosion of a detonating agent; subjecting the initial mixture to an oxidation treatment to obtain a suspension solution including the diamond; and separating a phase including the diamond. According to the present invention, after the oxidation treatment, a basic material having per se volatility or to generate a decomposed material having volatility is added, to neutralize with nitric acid, and thereby obtained diamond fine particle has a functional group on the surface thereof.

Carrier of a diamond fine particle for immobilizing virus

There is provided a metal thin film comprising a metal plate and a diamond particle dispersed in the metal plate. According to the present invention, the metal thin film has a film thickness of 5 nm to 35000 nm. The diamond particle is dispersed almost homogeneously over the direction of the film thickness of the metal thin film. The metal thin film has the diamond particle at a concentration of 1 to 12%. According to the present invention, based on conversion into an equivalent circle, the diamond particle has a first particle size distribution with respect to a first particle of a first particle size of 16 nm or less, at a first number average existence rate of 50% or more; the diamond particle has a second particle size distribution with respect to a second particle having a second particle size of 50 nm or more, at a second number average existence rate of substantially 0%; and the diamond particle has a third particle size distribution with respect to a third particle having a third particle size of 2 nm or less, at a third number average existence rate of substantially 0%.

Metal thin film dispersing a super-fine diamond particle, a metal material having the metal thin film, and a method for preparing the same

An aqueous suspension liquid of finely divided diamond particles comprising 0.05 to 160 parts by weight of a finely divided diamond particles in 1000 parts of water, wherein; (i) the finely divided diamond particles have an element composition consisting mainly of 72 to 89.5% by weight of carbon, 0.8 to 1.5% of hydrogen, 1.5 to 2.5% of nitrogen, and 10.5 to 25.0% of oxygen; (ii) and, almost all of said diamond particles are in the range of 2 nm to 50 nm in diameters thereof (80% or more by number average, 70% or more by weight average), (iii) and, said finely divided diamond particles exhibit a strongest peak of the intensity of the Bragg angle at 43.9&#xb0; (2&#x3b8;&#xb1;2&#xb0;), strong and characteristic peaks at 73.5&#xb0; (2&#x3b8;&#xb1;2&#xb0;)and 95&#xb0; (2&#x3b8;&#xb1;2&#xb0;), a warped halo at 17&#xb0; (2&#x3b8;&#xb1;2&#xb0;), and no peak at 26.5&#xb0;, by X-ray diffraction (XRD) spectrum analysis using Cu-K&#x3b1; radiation when dried, (iv) and, specific surface area of said diamond particles when dry state powder is not smaller than 1.50&#xd7;10m/kg, and substantially all the surface carbon atoms of said particles are bonded with hetero atoms, and the total absorption space of said powder is 0.5m/kg or more, when dried. The diamond particles are very active and dispersible in aqueous liquid in stable, and have essentially same mechanical properties as that of usual diamonds.

There is provided an ink jet head to transmit a shock wave propagated by an oscillator plate to the ink discharge orifice without significant power-loss for ink ejection. An ink jet head has a body ( ) having an oscillator plate with an outer surface ( ) and an inner surface ( ), the inner surface being parallel to the outer surface. The ink jet head also has an ink pressuring chamber formed in the body between the inner surface and an opposed lower wall ( ), the lower wall being angled relative to the inner surface. The ink jet head also has an ink feed chamber formed in the body. The ink jet head also has an ink feed passage formed in the body communicating between the ink feed chamber and the ink pressuring chamber, the ink feed passage having an ink feed orifice opening into the ink pressuring chambers. The ink jet head also has an ink discharge passage formed through the lower wall of the body communicating with a discharge orifice on the lower wall, the ink discharge passage having an inlet at the ink pressuring chamber and terminating at the discharge orifice, the ink discharge passage being continuously narrowed from the ink pressuring chamber to the discharge orifice.

Growing community of inventors

Yokohama, Japan

Tadamasa Fujimura