Oji Holdings Corporation

Riken Corporation

Nitto Kohki Co., Ltd.

Sharp Nec Display Solutions, Ltd.

Takayuki Okamoto

Kei Shinotsuka

Etsuko Kawamukai

Norio Yamamura

Toshio Mikiya

Yasuo Kazama

Hirokazu Hita

Takuo Tanaka

Satoshi Kawata

Keita Moriyama

Tameyoshi Oshima

Kentaro Takatori

In order to realize a light absorber wherein the wavelengths absorbed can be adjusted, an embodiment of the present invention provides a light absorberprovided with a group of dielectric protrusions, a conductive thin film, and a conductive thick film. The group of dielectric protrusions has each dielectric protrusion protruding at a random position on a dielectric surface. A dielectric thin film is disposed on or above at least part of the surface of the dielectric protrusions and on or above at least part of the dielectric surface where the dielectric protrusions are not present; and the dielectric thick film spreads out along the dielectric surface and being kept separate from the dielectric thin film. The group of dielectric protrusions can be provided by disposition of dielectric particles in an in-plane random arrangement on the surface. The present invention also provides a bolometer, an infrared light absorber, a solar thermal power generating device, and a radiative cooling film adopting the light absorber above as well as a method for manufacturing the light absorber.

Light absorbing body, bolometer, infrared ray absorbing body, solar thermal power generating device, radiant cooling film, and method for manufacturing light absorbing body

A projector and a method for holding the projector, which can prevent the projector from dropping and which can prevent noise emission. The projector of the present disclosure includes resin housing having multiple mounting portions, hanging metal plate disposed inside housing, at least one metal member disposed inside housing, connected to hanging metal plate, and integrated with hanging metal plate to form a loop shape, grounding member that is connected to the loop shape and grounds hanging metal plate, hanging metal fitting for fixing housing to a wall surface or ceiling, fixing member for fixing hanging metal fitting from the outside of housing to multiple portions, the hanging metal plate being fixed to hanging metal fitting through fixing member in at least one portions.

Projector and a method of holding the projector

Provided is an organic thin-film solar cell, including: a substrate, an anode, an organic thin-film layer that includes an organic semiconductor layer, and a cathode. The anode, the organic thin-film layer that includes the organic semiconductor layer, and the cathode are layered in order on top of the substrate. A recess and protrusion-shaped microstructure that includes a plurality of recesses or protrusions arranged two-dimensionally at random is formed in an interface between the organic thin-film layer and the cathode. The recess and protrusion-shaped microstructure is formed such that, when &#x3bb;and &#x3bb;are a shorter wavelength and a longer wavelength, respectively, of wavelengths that produce an absorption edge in a light absorption spectrum of the organic semiconductor layer, and kand kare real parts of propagation constants of surface plasmons that correspond, respectively, to those wavelengths and occur along an interface between the organic semiconductor layer and the cathode, and when the real part kcorresponds to an upper wavenumber limit Kin a power spectrum of a height distribution of the microstructure formed in the interface between the cathode and the organic semiconductor layer, and the real part kcorresponds to a lower wavenumber limit Kin the power spectrum of the height distribution of the microstructure formed in the interface between the cathode and the organic semiconductor layer, the power spectrum of the height distribution of the microstructure exhibits determinate values between the upper wavenumber limit Kand the lower wavenumber limit K, and an integrated value of a spectral intensity of the power spectrum of the height distribution over a wavenumber range from Kto Kis equal to at least 50% of an integrated value of the spectral intensity of the power spectrum of the height distribution across all wavenumbers.

Organic thin-film solar cell and organic thin-film solar cell manufacturing method

An organic light emitting diode includes an anodic conductive layer, an organic EL layer, and a cathodic conductive layer formed from Ag or an alloy of Ag, or the like, sequentially laminated on a substrate, such that a two-dimensional lattice structure is provided on a surface of the cathodic conductive layer on an organic EL layer side, an extraction wavelength and a distance between centers of concave portions or convex portions in the two-dimensional lattice structure are within a region surrounded by specific coordinates in a graph illustrating a relationship between the light extraction wavelength and the distance, and the depth of the concave portions or a height of the convex portions is 12 nm to 180 nm.

Organic light emitting diode, method for manufacturing same, image display device, and illuminating device

Provided is a motor-driven screwdriver configured such that the upper limit value of transmittable rotational driving force differs between forward and backward rotation. The motor-driven screwdriver has a bit holder and a rotational driving force transmission device for transmitting rotational driving force to the bit holder. The rotational driving force transmission device has a driving member, a driven member having through-holes, power transmission members held in the through-holes, respectively, and an urging member urging the power transmission members inward. Each through-hole is provided such that a through-hole center axis passing through a center between a forward rotation guide surface and backward rotation guide surface of the through-hole does not intersect a rotation center axis, whereby the force with which the power transmission member is pushed radially outward is made to differ between forward and backward rotation.

Electric screwdriver

An organic light emitting diode and a method for manufacturing the same. The organic light emitting diode includes an anodic conductive layer, an organic EL layer, and a cathodic conductive layer formed from Ag or an alloy of Ag, or the like, sequentially laminated on a substrate, such that a two-dimensional lattice structure is provided on a surface of the cathodic conductive layer on an organic EL layer side, an extraction wavelength and a distance between centers of concave portions or convex portions in the two-dimensional lattice structure are within a region surrounded by specific coordinates in a graph illustrating a relationship between the light extraction wavelength and the distance, and the depth of the concave portions or a height of the convex portions is 12 nm to 180 nm.

An organic light emitting diode, which is a top emission-type, is configured so that at least the following are laminated on the substrate: a reflective layer including a metal material; an anode conductive layer including a transparent conductive material; an organic EL layer having a light emitting layer which contains an organic light emitting material; and a cathode conductive layer in which a semi-transmissive metal layer and a transparent conductive layer including a transparent conductive material are laminated. On the surface of the semi-transmissive metal layer that is in contact with the transparent conducive layer side, a two-dimensional lattice structure is formed in which a plurality of protrusions are arranged periodically and two-dimensionally.

Organic light emitting diode, manufacturing method for organic light emitting diode, image display device, and illumination device

An organic light-emitting diode manufactured from an organic light-emitting diode substrate in which a concave-convex structure is provided in at least a part of the surface, in which the concave-convex structure is capable of obtaining an atomic force microscope (AFM) image in which a plurality of dots is dispersed when observed by an AFM. A histogram is created by measuring a diameter (nm) of each of the plurality of dots present in a randomly selected region having an area of 25 &#x3bc;mon the atomic force microscope image, resulting in a plurality of peaks including one main peak and one or more sub-peaks, and the chromaticity of light emitted from the organic light-emitting diode is in a range of (x, y)=(0.28 to 0.50, 0.29 to 0.45) in a CIE standard colorimetric system.

Organic light-emitting diode, organic light-emitting diode substrate, and method of manufacturing same

A method of manufacturing an organic light-emitting diode including preparing, by a dry etching method using a particle single layer film as an etching mask, a substrate provided with an uneven structure in which a plurality of unevenness is arranged in two dimensions on the surface of the substrate, and stacking, on the uneven structure, at least an anode conductive layer, an EL layer including a light-emitting layer containing an organic light-emitting material, and a cathode conductive layer containing a metal layer, such that the uneven structure is reproduced on the surface of the metal layer on the side of the EL layer, wherein the particle single layer film is formed using a mixture of a plurality of particles having different particle sizes, and an uneven structure is provided which satisfies particular requirements.

Organic light-emitting diode manufacturing method, organic light-emitting diode, image display device, illumination device, and substrate

A power screwdriver () includes a bit holder () bored to receive the shaft of a screwdriver bit () and adapted to securely hold the screwdriver bit () in place, and a housing () having a through cavity (). The bit holder () is inserted into the through cavity () so that the bit holder () is rotatable about and movable along the axis of the bit holder. This arrangement securely holds the screwdriver bit and thus, minimize rattling of the screwdriver bit during rotation.

Electric driver

Disclosed is a film comprising PMMA and a fluorescent substance having a xanthene skeleton and a lactone ring and/or a fluorescent substance having a xanthene skeleton and a group &#x2014;COOR, where R represents a hydrogen atom or a substituent, capable of forming an intramolecular lactone ring, said fluorescent substances being dispersed in the PMMA. The film is useful as an optical memory.

Growing community of inventors

Wako, Japan

Takayuki Okamoto