Abstract: A method of judging communication stability is provided for a network system including a master unit forming a programmable controller and a slave connected to a network. The master unit transmits to the slave a distorted test pattern formed by distorting a standard test pattern to a specified distortion level. If this distorted test pattern is normally received by the slave, a response is returned from the slave to the master unit. If the mater unit receives this response normally, it is judged that this network system has communication stability corresponding to this specified distortion level.

Abstract: A molded lens used in an optical pickup device provided with a plane of incidence having a first optical surface and a plane of emergence having a second optical surface, and a form of an outer circumference of the molded lens is formed by a first straight line portion which is in parallel substantially with a plane including an optical axis, a second straight line portion which is in parallel with the first straight line portion and is symmetric with the first straight line portion about the plane and by two circular arcs each connecting end portions of the first and second straight line portions. A part of a fringe of each of the first and second optical surfaces is substantially in a form of a circle whose center is on the optical axis is cut off by each of the first and second straight line portions.

Abstract: An optical pickup apparatus for reproducing information from an optical information recording medium or for recording information onto an optical information recording medium, is provided with a first light source for emitting first light flux having a first wavelength; a second light source for emitting second light flux having a second wavelength, the first wavelength being different from the second wavelength; a converging optical system having an optical axis and a diffractive portion, and a photo detector; wherein in case that the first light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the first light flux is greater than that of any other ordered diffracted ray of the first light flux, and in case that the second light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the second light flux is greater than that of any other ordered diffracted

Abstract: An optical pickup apparatus for reproducing information from an optical information recording medium or for recording information onto an optical information recording medium, is provided with a first light source for emitting first light flux having a first wavelength; a second light source for emitting second light flux having a second wavelength, the first wavelength being different from the second wavelength; a converging optical system having an optical axis and a diffractive portion, and a photo detector; wherein in case that the first light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the first light flux is greater than that of any other ordered diffracted ray of the first light flux, and in case that the second light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the second light flux is greater than that of any other ordered diffracted

Abstract: An optical pickup apparatus for reproducing information from an optical information recording medium or for recording information onto an optical information recording medium, is provided with a first light source for emitting first light flux having a first wavelength; a second light source for emitting second light flux having a second wavelength, the first wavelength being different from the second wavelength; a converging optical system having an optical axis and a diffractive portion, and a photo detector; wherein in case that the first light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the first light flux is greater than that of any other ordered diffracted ray of the first light flux, and in case that the second light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the second light flux is greater than that of any other ordered diffracted

Abstract: An optical pickup apparatus for reproducing information from an optical information recording medium or for recording information onto an optical information recording medium, is provided with a first light source for emitting first light flux having a first wavelength; a second light source for emitting second light flux having a second wavelength, the first wavelength being different from the second wavelength; a converging optical system having an optical axis and a diffractive portion, and a photo detector; wherein in case that the first light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the first light flux is greater than that of any other ordered diffracted ray of the first light flux, and in case that the second light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the second light flux is greater than that of any other ordered diffracted

Abstract: An optical pickup apparatus for a first optical medium including a first transparent base plate having a thickness of t1 and a second optical medium including a second transparent base plate having a thickness of t2 (t2>t1), comprises a first light source to emit a first light flux having a wavelength of &lgr;1; a second light source to emit a second light flux having a wavelength of &lgr;2 (&lgr;1<&lgr;2); a converging optical system having an objective lens and a diffracting section and to converge the first light flux or the second light flux onto the first optical medium or the second optical medium; and an optical detector. When the converging optical system converges the second light flux onto the second information recording surface so as to conduct reproducing and/or recording the information of the second optical information recording medium, a spherical aberration has at least one discontinuous portion or at least one substantially discontinuous portion.

Abstract: A method for fabricating a semiconductor-mounting body having at least one semiconductor device mounted on a substrate and a sealing resin set in the gap between the substrate and the semiconductor device, has a first step of setting a flexibly deformable sheet on a face of the semiconductor device not facing the substrate; and a second step of generating an air-pressure difference between the side where the semiconductor device is not present and the side where the semiconductor device is present on the basis of the sheet so that the air pressure at the side where the semiconductor device is not present becomes higher than the side where the semiconductor device is present and pressurizing the semiconductor device by the sheet after the first step.

Abstract: An objective lens comprises an inner optically functional region an inner optically functional region allowing a light flux to pass through for conducting recording and/or reproducing information for a first and second optical information recording mediums, an outer optically functional region allowing a light flux to pass through for conducting recording and/or reproducing information for the first optical information recording medium; and a diffractive structure provided on the outer optically functional region. The objective lens satisfies the following formulas: &lgr;>700 nm, NA1>0.65 and t1<t2 wherein &lgr; is a wavelength, NA1 is a numerical aperture, t1 and t2 are a thickness of a transparent base board of the first information recording medium and the second information recording medium.

Abstract: A method for fabricating a semiconductor-mounting body having at least one semiconductor device mounted on a substrate and a sealing resin set in the gap between the substrate and the semiconductor device, has

Abstract: An objective lens comprises an inner optically functional region an inner optically functional region allowing a light flux to pass through for conducting recording and/or reproducing information for a first and second optical information recording mediums, an outer optically functional region allowing a light flux to pass through for conducting recording and/or reproducing information for the first optical information recording medium; and a diffractive structure provided on the outer optically functional region. The objective lens satisfies the following formulas: &lgr;>700 nm, NA1>0.65 and t1<t2 wherein &lgr; is a wavelength, NA1 is a numerical aperture, t1 and t2 are a thickness of a transparent base board of the first information recording medium and the second information recording medium.

Abstract: For stably and efficiently producing cloned livestock, used is a uniform cultured cell strain as a donor cell for nuclear transplantation.

Abstract: For stably and efficiently producing cloned livestock, used is a uniform cultured cell strain as a donor cell for nuclear transplantation.

Abstract: An optical pickup apparatus for recording and/or reproducing information on an optical information recording medium includes a light source emitting a light flux, a light-converging optical system to converge a light flux emitted from the light source, having a coupling optical system which changes a divergent angle of a light flux emitted from the light source and an objective lens optical system which converges a light flux emerging from the coupling optical system on an information recording surface of the optical information recording medium, and an optical detector for detecting reflected light or transmitted light coming from the information recording surface of the optical information recording medium.

Abstract: An optical pickup apparatus for reproducing information from one of different kinds of optical information recording medium, each having a transparent substrate in different thickness, or for recording information onto one of the different kinds of optical information recording medium, the optical pickup apparatus includes: a light source for emitting light flux; a converging optical system having an optical axis, a ring-zonal diffraction section, and a refracting surface including a first divisional portion, a second divisional portion and a third divisional portion. The third divisional portion is farther from the optical axis than the first divisional portion, and the second divisional portion is provided between the first divisional portion and the third divisional portion.

Abstract: An optical pickup apparatus to conduct reproducing and/or recording information of an optical information recording medium, comprises a light source to emit a light flux having a wavelength of &lgr; (nm); a converging optical system to converge the light flux emitted from the light source onto a information recording surface of the optical information recording medium, the converging optical system having an objective lens; and an optical detector to receive reflected light from the optical information recording medium. The objective lens is a plastic lens, has a diffracting section on at least one surface thereof and satisfies the following conditional formula: 0.3≦&phgr;R/&phgr;≦1.5 where &phgr;R represents a refracting power of the objective lens on wavelength &lgr; (nm) of the light source and &phgr; represents a power of the objective lens in wavelength &lgr; nm of the light source.

Abstract: An optical pickup apparatus for reproducing information from an optical information recording medium or for recording information onto an optical information recording medium, is provided with a first light source for emitting first light flux having a first wavelength; a second light source for emitting second light flux having a second wavelength, the first wavelength being different from the second wavelength; a converging optical system having an optical axis and a diffractive portion, and a photo detector; wherein in case that the first light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the first light flux is greater than that of any other ordered diffracted ray of the first light flux, and in case that the second light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the second light flux is greater than that of any other ordered diffracted