Abstract: The present invention relates to a carbonaceous material which is derived from a plant, having a specific surface area of 1000 to 1800 m2/g as measured by a BET method, a hydrogen element content of 0.25% by mass or less and an oxygen element content of 1.5% by mass or less.

Abstract: The present inventors discovered that additional aggregation of low-pI antibody can be suppressed by removing formed antibody aggregates after a certain period of time following Protein A column purification, acidic treatment, and neutralization. Furthermore, the present inventors found that efficient impurities removal for a low-pI antibody can be accomplished by using an anion exchange resin in the Bind/Elute mode and then a hydrophobic interaction chromatography or multimodal chromatography resin, compared with conventional methods.

Abstract: The present invention relates to a carbonaceous material having a specific surface area of 1,800 m2/g to 3,000 m2/g according to a BET method, an R-value of 1.2 or more and a G-band half-value width of 70 cm?1 or more according to a Raman spectrum.

Abstract: The present invention relates to a carbonaceous material which is derived from a plant, having a specific surface area of 1800 to 3000 m2/g as measured by a BET method, a hydrogen element content of 0.42% by mass or less and an oxygen element content of 1.5% by mass or less.

Abstract: An object of the present invention is to provide a carbonaceous material used for an electric double layer capacitor having a high electrostatic capacity and capable of maintaining the high electrostatic capacity and energy density over a long period and a method for producing the same. The present invention relates to a carbonaceous material having a specific surface area of 1,200 m2/g to 1,800 m2/g according to a BET method, an R-value of 1.2 or more and a G-band half-value width of 70 cm?1 or more according to a Raman spectrum.

Abstract: The present inventors discovered that additional aggregation of low-pI antibody can be suppressed by removing formed antibody aggregates after a certain period of time following Protein A column purification, acidic treatment, and neutralization. Furthermore, the present inventors found that efficient impurities removal for a low-pI antibody can be accomplished by using an anion exchange resin in the Bind/Elute mode and then a hydrophobic interaction chromatography or multimodal chromatography resin, compared with conventional methods.

Abstract: In an optical switch, fibers in a fiber array are arranged in a row. When a region where lights input into or output from the fibers in the fiber array intersect is taken as an intersecting position C, and an axis parallel to the fibers in the fiber array and passing through the intersecting position C is taken as a Z axis, then a distance ? between a core of a desired fiber among the fibers and an optical axis of a corresponding one of the lenses varies depending on a distance S of the desired fiber from the Z axis.

Abstract: A spectroscope includes an emitting portion from where light is output, a dispersive element which is disposed on a side of the light emitting portion, to which the light is output, an incidence portion on which, light dispersed by the dispersive element is incident, and a temperature-compensating element which is disposed between the emitting portion and the incidence portion, and which is such that, an angle of incidence of the light dispersed on the incidence portion becomes almost constant with respect to a change in temperature in an operating temperature range. Moreover, the optical apparatus has such spectroscope in which temperature is compensated.

Abstract: In an optical switch, fibers in a fiber array are arranged in a row. When a region where lights input into or output from the fibers in the fiber array intersect is taken as an intersecting position C, and an axis parallel to the fibers in the fiber array and passing through the intersecting position C is taken as a Z axis, then a distance ? between a core of a desired fiber among the fibers and an optical axis of a corresponding one of the lenses varies depending on a distance S of the desired fiber from the Z axis.

Abstract: A wavelength selective switch includes a port array including three or more input and output ports arranged on a first plane in which first and second axes lie along the first axis, a dispersive element to disperse a light beam launched from an input port in a second plane in which the second axis and a third axis lie, a focusing optical element to focus dispersed light beams, and a mirror array to couple a focused light beam to an output port through the elements. The array has a mirror substrate arranged across the second plane. The substrate includes movable mirrors arranged in a line and allowed to be two-dimensionally tilted. The substrate is arranged so that its surface facing the focusing optical element has a tilt angle about the first axis with respect to a third plane in which the third and first axes lie.

Abstract: A spectroscope includes an emitting portion from where light is output, a dispersive element which is disposed on a side of the light emitting portion, to which the light is output, an incidence portion on which, light dispersed by the dispersive element is incident, and a temperature-compensating element which is disposed between the emitting portion and the incidence portion, and which is such that, an angle of incidence of the light dispersed on the incidence portion becomes almost constant with respect to a change in temperature in an operating temperature range. Moreover, the optical apparatus has such spectroscope in which temperature is compensated.

Abstract: A highly reliable optical switch which can output (switch) accurately to an optical fiber for output without being affected by a change in an environment and a change due to an elapsed time is provided. The optical switch includes a first spectroscope which separates spatially light from an optical fiber for input according to a wavelength and a mirror array which includes a plurality of mirrors which reflect separated light and an angle of each of the mirrors can be controlled independently by an electric signal. The optical switch further includes An optical branching device which extracts a part of an output light from the optical fiber for output, an optical fiber for monitoring which guides apart of output light extracted by the optical branching device, a second spectroscope which separates spatially light from the optical fiber for monitoring according to a wavelength, and a photodetector array which can detect lights of different wavelengths separated at the second spectroscope.

Abstract: An optical switch includes a plurality of light inputting members, a plurality of light outputting members, an optical coupling member which couples light to the light inputting members and the light outputting members, an optical path changing member which changes an optical path from the light inputting members up to the light outputting members, an optical path shielding member which can take a first position which shields collectively all optical paths from the light inputting members up to the light outputting members and a second position which allows light to pass through the optical path, a first driving circuit which drives the optical path changing member, and a second driving circuit which drives the optical path shielding member.

Abstract: An optical switch includes a plurality of light inputting members, a plurality of light outputting members, an optical coupling member which couples light to the light inputting members and the light outputting members, an optical path changing member which changes an optical path from the light inputting members up to the light outputting members, an optical path shielding member which can take a first position which shields collectively all optical paths from the light inputting members up to the light outputting members and a second position which allows light to pass through the optical path, a first driving circuit which drives the optical path changing member, and a second driving circuit which drives the optical path shielding member.

Abstract: A highly reliable optical switch which can output (switch) accurately to an optical fiber for output without being affected by a change in an environment and a change due to an elapsed time is provided. The optical switch includes a first spectroscope which separates spatially light from an optical fiber for input according to a wavelength and a mirror array which includes a plurality of mirrors which reflect separated light and an angle of each of the mirrors can be controlled independently by an electric signal. The optical switch further includes An optical branching device which extracts a part of an output light from the optical fiber for output, an optical fiber for monitoring which guides apart of output light extracted by the optical branching device, a second spectroscope which separates spatially light from the optical fiber for monitoring according to a wavelength, and a photodetector array which can detect lights of different wavelengths separated at the second spectroscope.

Abstract: A microscope includes an objective lens, an imaging lens, which constitutes an imaging optical system in cooperation with the objective lens, a wavefront modulator, which is located on an optical path between the objective lens and the imaging lens, and a light beam diameter controlling unit, which is located on the optical path between the wavefront modulator and the objective lens and changes the diameter of a light beam from the objective lens to a substantially constant diameter.

Abstract: The present invention provides an optical pickup deformable mirror used for correcting a spherical aberration caused by a difference in thickness of a cover glass of a recording medium, wherein the optical pickup deformable mirror is deformed into a rotation-symmetrical surface obtained by rotating a curve represented by the following expression f(r): f(r)=ar2+g(r) where r is the distance from the axis of rotational symmetry, a is an actual number except for 0, and g(r) satisfies |g(r)|≦1 &mgr;m.

Abstract: A laser beam emitted from a laser source provided at a silicon substrate passes through a hologram element formed of a translucent flat plate and a grating, thereby being subjected to NA conversion executed by an NA converting lens, passing through a polarizing film of a polarization beam splitter, and converging onto a magneto-optical disk via a collimator lens and an objective. A part of back-reflection from the magneto-optical disk, which is reflected by a polarizing film of the polarization beam splitter, is reflected by a reflection surface of the splitter, then branched into two polarized light beams by a Wollaston prism, and guided to one light receiving element group. On the other hand, another part of the back-reflection, which passes through the polarization beam splitter, is branched into two beams by the hologram element and guided to the other light receiving element groups.

Abstract: The present invention provides an optical pickup deformable mirror used for correcting a spherical aberration caused by a difference in thickness of a cover glass of a recording medium, wherein the optical pickup deformable mirror is deformed into a rotation-symmetrical surface obtained by rotating a curve represented by the following expression f(r):

Abstract: An optical pickup comprises a light source section for emitting a light beam, a floating objective lens for focusing the light beam on an optical disk, a galvano-mirror capable of directing the light beam toward the objective lens and rockable for tracking control, a beam splitter for extracting return light from the optical disk, and a photodetector for detecting return light. The floating objective lens includes a lens for converging the light beam and a slider for holding the lens. The slider is lifted off the optical disk by means of air currents produced as the disk rotates. The galvano-mirror is located adjacent to the objective lens. In other words, the objective lens in a floating state is situated close to the galvano-mirror without intercepting the light beam incident upon the galvano-mirror.