Abstract: A scroll compressor comprising a fixed scroll (15); an orbiting scroll (16) supported in a manner allowing for orbiting motion; a discharge port through which a fluid compressed by the two scrolls (15, 16) is discharged; an end plate step portion (16E) provided on an end plate of the orbiting scroll (16) formed so that a height of the end plate is higher on a center portion side in the direction of a spiral wrap and lower on an outer end side; and a wrap step portion (15E) provided on a wall portion of the fixed scroll (15) that corresponds to the end plate step portion (16E) so that a height of the wall portion is lower on the center portion side of the spiral and higher on the outer end side; wherein the orbiting scroll (16) is treated for surface hardening and the fixed scroll (15) is not treated for surface hardening.

Abstract: This invention relates to a stained glass article of a three dimensional shape and a method for producing the same. A glass plate is cut into glass pieces of a certain shape including a pentagon member and a hexagon member. The hexagon member consists of one six-sided irregular member and three four-sided irregular members. The glass pieces of the certain shape are united together via a bonding agent to obtain the three dimensional stained glass imitating the shape of a soccer ball. The glass piece has a curved surface whose radius of curvature is set substantially equal to the radius of the soccer ball.

Abstract: A process for the solubilization of a protein obtained via heterologous expression comprises the step of bringing the insoluble protein produced in transformed host cells into contact with an aqueous acid solution in the presence of a protein denaturant. The process also preferably comprises the further steps of elevating the pH value of the solution, by addition of alkali substance, and thereafter lowering the pH to obtain a biologically-active protein.

Abstract: A method for removing a pyrogen from a pyrogen-containing sample solution, which comprises adding a calcium salt to the sample solution and separating the resulting precipitates.