Abstract: A high-strength steel sheet of the present invention has a specific chemical composition. Furthermore, in the steel sheet, a degree of Mn segregation in a specific region is 1.5 or less; a maximum P concentration in a specific region is 0.08 mass % or less; in a specific region, at least one specific MnS particle group is present, the number of specific MnS particle groups is 2.0 or fewer per 1 mm2, and the number of specific oxide-based inclusions is 8 or fewer per 1 mm2; of all oxide-based inclusions, oxide-based inclusions having a specific composition are present in a number ratio of 80% or greater; the microstructure includes, in terms of a volume fraction, 30 to 95% martensite, 5 to 70% ferrite phase, less than 30% (and 0% or greater) bainite, and less than 2.0% (and 0% or greater) austenite phase; and a tensile strength is 980 MPa or greater.

Abstract: Provided is a ??T cell for securing the purity and number of cells sufficient for treatment. Also provided is a method of generating the ??T cell. More specifically, provided are homogeneous ??T cells excellent in that the ??T cells are not affected by exhaustion of the cells. The foregoing is achieved by ??T cells obtained by subjecting induced pluripotent stem cells (iPS cells) to differentiation induction treatment. Specifically, the foregoing is achieved by ??T cells generated by subjecting iPS cells having a rearranged ??TCR gene (??TCR-type iPS cells) to differentiation induction treatment. According to the method of generating the ??T cell of the present invention, there can be provided ??T cells and a cell population of ??T cells that have an excellent function of having antigen-specific cytotoxic activity in a MHC-unrestricted manner, and that are more homogeneous and have a higher effect than ??T cells separated from peripheral blood.

Abstract: A robot and work equipment are disposed near a work table including a work table-side controller and a process planning and designing controller capable of being operated by a user. The work table-side controller executes a work process in which the robot and the work equipment operate in conjunction, by receiving signals carrying identification and state monitoring information from a robot-side controller and the work equipment and then sending these signals to the process planning and designing controller, and by sending operation command signals to the robot-side controller and the work equipment in accordance with the aforementioned work process and then receiving operation status signals from the robot-side controller and the work equipment. Based on the signals carrying the identification and state monitoring information on the robot and the work equipment, the process planning and designing controller plans and designs the aforementioned work process.

Abstract: A seat sliding device for preventing accidental operation of the operation member. The seat sliding device includes a biasing member 60 which biases a lock member 50 in response to the operation of an operation lever 70 in an unlocking pivoting direction and which is tiltable around a shaft 62 as the tilting center together with the operation lever 70 in response to the operation of the operation lever 70. A balancer 64 of the biasing member 60 has a shape and mass, etc. adapted so as to bring a position of the center of gravity of the tilting body including the operation lever 70 and the biasing member 60 close to the shaft center of the shaft 62.

Abstract: A seat sliding device for preventing accidental operation of the operation member. The seat sliding device includes a biasing member 60 which biases a lock member 50 in response to the operation of an operation lever 70 in an unlocking pivoting direction and which is tiltable around a shaft 62 as the tilting center together with the operation lever 70 in response to the operation of the operation lever 70. A balancer 64 of the biasing member 60 has a shape and mass, etc. adapted so as to bring a position of the center of gravity of the tilting body including the operation lever 70 and the biasing member 60 close to the shaft center of the shaft 62.

Abstract: It is provided an aqueous pigment dispersion having improved dispersing stability in which carbon black shows appropriate initial dispersing property and long-term dispersing property to water, and carbon black particles are less susceptible to aggregation. Moreover, it is provided a raw material for ink-jet ink having improved printing density when alkali metal cation is substituted by potassium ion. The present invention is summarized as an aqueous pigment dispersion, which contains surface modified carbon black that is obtained by wet-oxidizing carbon black by using hypohalous acid and/or a salt thereof, and alkali metal cation, characterized in that concentration of the alkali metal cation is not more than 2% by weight.

Abstract: Disclosed are a process for producing a poly(alkylene ether) glycol which comprises polymerizing a cyclic ether in the presence of at least a catalyst and a carboxylic acid anhydride, wherein the carboxylic acid anhydride has a ketene dimer content of 50 ppm or lower, and a process for producing a poly(alkylene ether) glycol which comprises polymerizing a cyclic ether in the presence of at least a catalyst and acetic anhydride, wherein the acetic anhydride is purified acetic anhydride obtained by treating acetic anhydride by contacting with at least one of a metal oxide and a mixed oxide, and optionally, distilling the acetic anhydride simultaneously with or after the contact treatment.

Abstract: A process for producing an unsaturated glycol diester disclosed, which process comprises reacting a conjugated diene with a carboxylic acid and molecular oxygen in the presence of a solid catalyst comprising (1) palladium and (2) tellurium as active components supported on a carrier, wherein a said carrier is a solid carrier in which a proportion of the volume of pores having a pore radius in the range of from 5 to 50 nm is 80% or more relative to the total volume of pores having a pore radius in the range of from 1.8 to 10,000 nm.

Abstract: A process for preparing diacetoxybutene, including:reacting butadiene, acetic acid and oxygen in the presence of a palladium-based catalyst;feeding continuously the resulting reaction product into a first distillation tower;feeding continuously a withdrawn bottoms withdrawn from the first distillation tower into a second distillation tower;withdrawing bottoms containing high boiling point materials from the bottom of the second distillation tower, so that the content of the high boiling point materials in the bottoms of the second distillation tower is not more than 20 wt %;feeding continuously the withdrawn bottoms into a thin-film evaporator whose internal pressure is kept lower than the bottom pressure of the second distillation tower to carry out evaporation treatment; andrecycling the evaporated materials mainly containing diacetoxybutene into the second distillation tower.

Abstract: A method for the production of polytetramethylene ether glycol wherein polymerization of tetrahydrofuran in the presence of fluorosulfonic acid is followed by hydrolysis of the resulting polymer, characterized by(1) using the fluorosulfonic acid at 0.007-0.3 molar equivalents with respect to the tetrahydrofuran;(2) using in combination therewith fuming sulfuric acid which contains free sulfur trioxide at 0.05-1.0 molar equivalent with respect to the fluorosulfonic acid; and(3) adding said fuming sulfuric acid to the tetrahydrofuran prior to adding the fluorosulfonic acid thereto.According to the method, high quality polytetramethylene ether glycol with a low fluorine content may be obtained at a high yield without lowering the polymerization temperature. For example, PTMG may be obtained with 3 or fewer, and preferably 2 or fewer terminal fluorines per 2,000 termini of the resulting PTMG.

Abstract: A writing board ink composition comprises a medium formed of a lower alcohol solvent which contains an alcohol-soluble polymer, a scraping (erasing) agent, a surfactant and a diketopyrrolopyrrole pigment having a median Stokes diameter (ultrafine particle size) of not more than 0.2 .mu.m and represented by the following formula ##STR1## R.sup.1 and R.sup.2 independently represent an unsubstituted phenyl or naphthyl group of a non-water-solubilizing substituent substituted phenyl or naphthyl group, and R.sup.3 and R.sup.4 independently represent hydrogen or a non-water-solubilizing substituent. The writing board ink composition remains stable for a long time while in pens even when the resin content (alcohol-soluble polymer) is such that unclear writing and scrapability reduction (loss of scrapability or erasability) can be avoided, since the pigment of ultrafine particle size is fast to lower alcohol solvents.

Abstract: A method for producing an unsaturated glycol diester by reacting molecular oxygen, a carboxylic acid and a conjugated diene in the presence of a solid catalyst containing palladium and tellurium supported on a carrier, wherein an active carbon with the total pore volume of pores having radii of from 18 to 100,000 .ANG. being at least 0.45 cc/g and with the volume of pores having radii of at least 3,000 .ANG. constituting at least 50% of the total pore volume, is used as the carrier for the solid catalyst.

Abstract: A method for hydrogenating an aldehyde and/or a ketone in the presence of a ruthenium catalyst, wherein said ruthenium catalyst is obtained by reducing an alkali metal ruthenate with a reducing agent selected from the group consisting of methanol, formaldehyde and formic acid.

Abstract: A process for producing dimethyl ether useful as a propellant by dehydrating methanol and recovering dimethyl ether from the dehydrated product by distillation, which comprises(A) a reaction step wherein the dehydration reaction of methanol is conducted in a vapor phase under pressure of from 2 to 50 kg/cm.sup.2 G in the presence of a solid acid catalyst,(B) a first distillation step wherein the reaction mixture formed by the above reaction step is cooled and introduced into a pressurized distillation column under pressure of at least 5 kg/cm.sup.

Abstract: There is disclosed a process for the production of isobutyric acid by liquid-phase oxidation of isobutyraldehyde in the presence of an alkali metal-containing compound, the oxidation being effected while maintaining the molar ratio of oxygen to isobutyraldehyde to be fed at 0.5 or above.