Abstract: A joint method includes a groove formation step of removing part of a first projection and part of the second projection to form a groove region between the first projection and the second projection, a first welding step of joining a first member and a second member to each other by butt welding, and a second welding step of filling the groove region by buildup welding. The groove formation step forms a first inclined surface in the first projection facing the groove region to be gradually distant from a joint position joined with the second projection so as to be closer to an outer surface of the first projection, and forms a second inclined surface in the second projection facing the groove region to be gradually distant from the joint position joined with the first projection so as to be closer to an outer surface of the second projection.

Abstract: A detergent comprising (A) a sulfobetaine type ampholytic surfactant, and (B) a quaternary ammonium cation-modified silicone. A mass ratio [(A)/(B)] of the component (A) to the component (B) is 0.1 or more and 1,000 or less.

Abstract: A detergent comprising (A) an anionic surfactant, (B) a quaternary ammonium cation-modified silicone, and (C) an organic acid is described. A mass ratio [(A)/(B)] of the component (A) to the component (B) is 100 or more, and a mass ratio [(A)/(C)] of the component (A) to the component (C) is 1 or more and 900 or less.

Abstract: A detergent comprising (A) at least one selected from the group consisting of (A1) a carbobetaine type ampholytic surfactant and (A2) a nonionic surfactant, and (B) a quaternary ammonium cation-modified silicone. A mass ratio [(A)/(B)] of the component (A) to the component (B) is 0.1 or more and 1,000 or less, and the content of an anionic surfactant is 4% by mass or less.

Abstract: A detergent comprising (A) an anionic surfactant, (B) a quaternary ammonium cation-modified silicone, and (C) a cationic polymer is described. A mass ratio [(A)/(B)] of the component (A) to the component (B) is 30 or more and 5,000 or less, and a mass ratio [(B)/(C)] of the component (B) to the component (C) is 0.01 or more and 0.5 or less.

Abstract: The present invention relates to a detergent containing or prepared by blending: (A) at least one selected from the group consisting of an alkyl sultaine, an alkyl hydroxysultaine, and a nonionic surfactant; and (B) an aminopolyether-modified silicone containing a polyoxyalkylene structure and satisfying the following formula (I): 0.01?Si/AO?1.6??(I) [in the formula (I), Si represents a molar number of a silicon atom in the component (B), and AO represents an oxyalkylene average addition molar number in the component (B)], wherein a mass ratio [(A)/(B)] of the component (A) to the component (B) is 0.1 or more and 1,000 or less.

Abstract: The present invention relates to a detergent containing or prepared by blending: (A) an anionic surfactant; (B) an aminopolyether-modified silicone containing a polyoxyalkylene structure and satisfying the following formula (I); and (C) a cationic polymer, wherein a mass ratio [(A)/(B)] of the component (A) to the component (B) is 25 or more and 5,000 or less, and a mass ratio [(B)/(C)] of the component (B) to the component (C) is 0.001 or more and less than 1: 0.01?Si/AO?1.6??(I) [in the formula (I), Si represents a molar number of a silicon atom in the component (B), and AO represents an oxyalkylene average addition molar number in the component (B)].

Abstract: The present invention relates to a detergent containing or prepared by blending: (A) an anionic surfactant; (B) an aminopolyether-modified silicone containing a polyoxyalkylene structure and satisfying the following formula (I); and (C) an organic acid, wherein a mass ratio [(A)/(B)] of the component (A) to the component (B) is less than 25, and a mass ratio [(A)/(C)] of the component (A) to the component (C) is 30 or more and 3,000 or less: 0.01?Si/AO?1.6??(I) (in the formula (I), Si represents a molar number of a silicon atom in the component (B), and AO represents an oxyalkylene average addition molar number in the component (B)).

Abstract: The present invention relates to a detergent containing or prepared by blending: (A) an anionic surfactant; (B) an aminopolyether-modified silicone containing a polyoxyalkylene structure and satisfying the following formula (I); and (C) an organic acid, wherein a mass ratio [(A)/(B)] of the component (A) to the component (B) is 25 or more, and a mass ratio [(A)/(C)] of the component (A) to the component (C) is 1 or more and 3,000 or less: 0.01?Si/AO?1.6??(I) (in the formula (I), Si represents a molar number of a silicon atom in the component (B), and AO represents an oxyalkylene average addition molar number in the component (B)).

Abstract: Provided is a cationic group-containing cellulose which, when incorporated in a hair wash composition, is able to give an excellent smootheness feeling and its sustained feeling in rinsing and give a good coat feeling, and which, when incorporated in a skin cleanser composition, is able to give an excellent moist feeling to the skin after washing and drying, and also provided are a surfactant composition, a hair wash composition, a skin cleanser composition, a hair conditioner composition and a hair treatment composition containing the cellulose ether. [1] A cationic group-containing cellulose ether, which has a main chain derived from an anhydroglucose, and in which the degree of substitution with a cationized oxyalkylene group per the anhydroglucose unit is from 0.01 to 1.0, the degree of substitution with a glycerol group is from 0.5 to 5.0, and the degree of substitution with a group that contains a branched hydrocarbon group having from 8 to 18 carbon atoms and has a specific structure is from 0.

Abstract: Provided is a cationic group-containing cellulose ether which, when incorporated in a hair wash, is able to give an excellent smoothness property and its sustained feeling, finger combability and coated feeling in rinsing, and which, when incorporated in a skin cleanser, is able to give an excellent moist feeling to the skin after washing, and also provided are a surfactant composition, a hair wash composition, a skin cleanser composition, a hair conditioner composition and a hair treatment composition containing the cationic group-containing cellulose ether.

Abstract: A cationized glycerolated cellulose which, when blended in a hair cosmetic, is able to impart excellent smoothness and its long-lasting feeling at the time of rinsing and to impart a moist feeling and softness to the hair after drying and, when blended in a skin cleanser, is able to impart an excellent moisturizing feeling after drying; a surfactant composition containing the same; and a hair cosmetic composition and a skin cleanser composition each containing the surfactant composition, are provided. [1] A cationized glycerolated cellulose having a specified structure, which has a main chain derived from an anhydroglucose, wherein a degree of substitution of a cationized alkylene oxy group per the anhydroglucose unit is from 0.01 to 0.18, and a degree of substitution of a glycerol group per the anhydroglucose unit is from 0.5. to 5.

Abstract: Provided is a cationic group-containing cellulose which, when incorporated in a hair wash composition, is able to give an excellent smootheness feeling and its sustained feeling in rinsing and give a good coat feeling, and which, when incorporated in a skin cleanser composition, is able to give an excellent moist feeling to the skin after washing and drying, and also provided are a surfactant composition, a hair wash composition, a skin cleanser composition, a hair conditioner composition and a hair treatment composition containing the cellulose ether. [1] A cationic group-containing cellulose ether, which has a main chain derived from an anhydroglucose, and in which the degree of substitution with a cationized oxyalkylene group per the anhydroglucose unit is from 0.01 to 1.0, the degree of substitution with a glycerol group is from 0.5 to 5.0, and the degree of substitution with a group that contains a branched hydrocarbon group having from 8 to 18 carbon atoms and has a specific structure is from 0.

Abstract: The present invention relates to a hair cosmetic capable of giving good finger combability and manageability with no oily feeling to the hair treated therewith and dried, and to a method for producing the hair cosmetic. The hair cosmetic contains a cationized hydroxypropyl cellulose (A), an oil (B) of which the amount of dissolution in 100 g of water at 20° C. is from 0 to 1 g, and a surfactant (C), wherein the cationized hydroxypropyl cellulose (A) has an anhydroglucose-derived main chain and has a degree of substitution with cationized ethyleneoxy group of from 0.01 to 2.9 and a degree of substitution with propyleneoxy group of from 0.1 to 4.0, and the production method is for producing the hair cosmetic.

Abstract: The present invention relates to a hair treatment composition capable of imparting good finger combability, body and manageability to the hair treated therewith and dried, and to a method for producing the composition. The hair treatment composition contains a cationized hydroxypropyl cellulose (A) and at least one treating agent (B) selected from a hair-coloring dye, an oxidizing agent, an alkali agent and a keratin-reducing agent.

Abstract: Provided is a cationic group-containing cellulose ether which, when incorporated in a hair wash, is able to give an excellent smoothness property and its sustained feeling, finger combability and coated feeling in rinsing, and which, when incorporated in a skin cleanser, is able to give an excellent moist feeling to the skin after washing, and also provided are a surfactant composition, a hair wash composition, a skin cleanser composition, a hair conditioner composition and a hair treatment composition containing the cationic group-containing cellulose ether. [1] A cationic group-containing cellulose ether, which has a main chain derived from an anhydroglucose, and in which the degree of substitution with a cationized oxyalkylene group per the anhydroglucose unit is from 0.01 to 1.0, the degree of substitution with a glycerol group is from 0.5 to 5.0, and the degree of substitution with a group that contains a hydrocarbon group, has from 3 to 7 carbon atoms and has a specific structure is from 0.0001 to 0.

Abstract: A cationized glycerolated cellulose which, when blended in a hair cosmetic, is able to impart excellent smoothness and its long-lasting feeling at the time of rinsing and to impart a moist feeling and softness to the hair after drying and, when blended in a skin cleanser, is able to impart an excellent moisturizing feeling after drying; a surfactant composition containing the same; and a hair cosmetic composition and a skin cleanser composition each containing the surfactant composition, are provided. [1] A cationized glycerolated cellulose having a specified structure, which has a main chain derived from an anhydroglucose, wherein a degree of substitution of a cationized alkylene oxy group per the anhydroglucose unit is from 0.01 to 0.18, and a degree of substitution of a glycerol group per the anhydroglucose unit is from 0.5. to 5.

Abstract: The present invention relates to a hair cosmetic capable of giving good finger combability and manageability with no oily feeling to the hair treated therewith and dried, and to a method for producing the hair cosmetic. The hair cosmetic contains a cationized hydroxypropyl cellulose (A), an oil (B) of which the amount of dissolution in 100 g of water at 20° C. is from 0 to 1 g, and a surfactant (C), wherein the cationized hydroxypropyl cellulose (A) has an anhydroglucose-derived main chain and has a degree of substitution with cationized ethyleneoxy group of from 0.01 to 2.9 and a degree of substitution with propyleneoxy group of from 0.1 to 4.0, and the production method is for producing the hair cosmetic.

Abstract: The present invention relates to a hair treatment composition capable of imparting good finger combability, body and manageability to the hair treated therewith and dried, and to a method for producing the composition. The hair treatment composition contains a cationized hydroxypropyl cellulose (A) and at least one treating agent (B) selected from a hair-coloring dye, an oxidizing agent, an alkali agent and a keratin-reducing agent.

Abstract: Embodiments in accordance with the present invention provide a connector for a data storage device having a sufficient strength, and relate to a data storage device using such a connector. In accordance with one embodiment, a data storage device is provided having a circuit board and a connector for making a connection with an external interface. The connector includes bosses disposed on both sides across a center of a direction orthogonal to a direction perpendicular to a main surface of the circuit board and a direction, in which the connector is connected to the interface. The boss is a protrusion that counteracts a force applied to the connector by being embedded in a hole disposed in the circuit board when the connector is disposed in the circuit board.