Nitto-Denko Corporation

Kazutaka Hara

Naoki Takahashi

Kentarou Takeda

Miki Shiraogawa

Takahiro Fukuoka

Minoru Miyatake

Seiji Izutani

Hisae Uchiyama

Seiji Umemoto

Yoshihiro Kitamura

Yoshimasa Sakata

Kiichi Shimodaira

Toshiyuki Umehara

Tatsuya Osuka

Katsuhiro Nakano

Hiroyuki Yoshimi

Tadayuki Kameyama

Takehito Fuchida

Takafumi Sakuramoto

Shigenori Morita

Tomonari Naito

Kouji Maruyama

Taiki Sueyoshi

Tomohiro Kontani

Naoki Kurata

Satoru Suzuki

Yasuo Fujimura

Mayu Ozaki

Naoto Ooe

Suguru Yamamoto

Manabu Miyazaki

Shinya Nakano

Chiharu Odane

Hitotsugu Hirano

The present invention provides a sensor cell that has excellent measurement accuracy in repetitive measurement. An optical waveguide of the present invention includes a cladding layer and a core layer buried in the cladding layer so that at least one surface of the core layer is exposed. A water contact angle of a surface of the cladding layer on which the core layer is exposed is 80&#xb0; or more. An SPR sensor cell and a colorimetric sensor cell of the present invention each include the optical waveguide of the present invention.

Optical waveguide, and SPR sensor cell and colorimetric sensor cell each using same

The present invention provides an anti-fouling pressure-sensitive adhesive sheet and anti-fouling treatment method capable of preventing peeling from overlapping portions when adjacent anti-fouling pressure-sensitive adhesive sheets are attached by allowing end portions thereof to overlap each other. The anti-fouling pressure-sensitive adhesive sheet of the present invention includes a base material layer; a pressure-sensitive adhesive layer provided on one side of the base material layer; and an anti-fouling layer provided on another side of the base material layer, wherein the anti-fouling pressure-sensitive adhesive sheet has, at an end portion thereof, a bonding margin including parts of the base material layer and the pressure-sensitive adhesive layer, the parts extending beyond the anti-fouling layer.

Anti-fouling adhesive sheet, and anti-fouling treatment method for a structure using said anti-fouling adhesive sheet

A power module includes a power module board including an insulating layer and a conductive circuit formed on the insulating layer, a power device provided on the power module board and electrically connected to the conductive circuit, and a thermal conductive sheet for dissipating the heat generated from the power module board and/or the power device. The thermal conductive sheet contains a plate-like boron nitride particle and the thermal conductivity in a direction perpendicular to the thickness direction of the thermal conductive sheet is 4 W/m&#xb7;K or more.

Power module

A light-emitting diode device includes a light-emitting diode, a power circuit portion for supplying electric power to the light-emitting diode, and a heat dissipating member for dissipating the heat generated from the light-emitting diode. The heat dissipating member is made of a thermal conductive sheet which contains a plate-like boron nitride particle. The thermal conductivity in a direction perpendicular to the thickness direction of the thermal conductive sheet is 4 W/m&#xb7;K or more.

Light-emitting diode device

An imaging device module includes an imaging device including a light incident plane on which light is incident, and a reverse face disposed on an opposite side of the light incident plane; and a thermal conductive sheet provided on the reverse face for dissipating heat generated from the imaging device. The thermal conductive sheet contains a plate-like boron nitride particle, and the thermal conductive sheet has a thermal conductivity in a direction perpendicular to the thickness direction of 4 W/m&#xb7;K or more.

Imaging device module

A light source comprising sidelight type backlight light guide plate (L), wherein a transmittance angle dependent layer (T) which transmits normally incident light and reflects obliquely incident light is disposed on one surface of the sidelight type backlight light guide plate (L), and a reflection plate (R) having a repetitive slope structure is disposed on the other surface of the sidelight type backlight light guide plate (L). The invention light source is less in absorption loss due to repetition of light reflection and the like.

Light source and liquid crystal display

A polarization component, capable of efficiently reflecting an obliquely transmitted light beam toward a light source without degrading the transmission-polarization property of a perpendicular incident light beam, is provided. A C-plate having an oblique retardation of at least &#x3bb;/8 with respect to a light beam inclined by at least 30&#xb0; is disposed between at least two reflective circular polarizer layers whose selective reflection wavelength bands of polarized light overlapping each other. A combination of a reflective linear polarizer and a quarter wavelength plate may be used instead of the reflective circular polarizer. Alternatively, a combination of two reflective linear polarizer layers and two quarter wavelength plate layers (Nz&#x2267;2) disposed therebetween can provide a similar effect. Further, a combination of two reflective linear polarizer layers and a half wavelength plate (Nz&#x2267;1.5) disposed therebetween may be used. When reflective linear polarizer layers are used, they must be bonded together with their axial directions set at a certain angle. The polarization component is preferably used in various image display apparatuses such as liquid crystal display apparatuses and organic EL display apparatuses.

Polarization component, polarization light source and image display apparatus using the same

Light source device and crystal display device

An optical element comprising: a polarizing element (A), separating incident light into polarization to then emit light, and made of a cholesteric liquid crystal, and a linearly polarized light reflection polarizer (B) transmitting linearly polarized light with one polarization axis and selectively reflecting linearly polarized light with the other polarization axis perpendicular to the one polarization axis, wherein the polarizing element (A) has a distortion rate with respect to emitting light to incident light in the normal direction of 0.5 or more and a distortion rate with respect to emitting light to incident light at an angle inclined from the normal direction by 60 degrees or more of 0.2 or less, the polarizing element (A) has a function increasing a linearly polarized light component of emitting light as incidence angle is larger; is capable of condensation and collimation of incident light from a light source and capable of suppressing transmission of light in an arbitrary direction.

Optical element, light condensation backlight system, and liquid crystal display

Polarizer, polarization light source and image display unit using them

An optical element of the invention comprises at least two laminated layers of reflective polarizer; and at least one retardation layer for changing polarization properties laminated between the reflective polarizers, the combination of the layers being designed so as to provide a incident-light transmittance depending on an incident angle of an incident light and designed such that a shielded light is not absorbed but reflected. The optical element can effectively shield transmitted lights with respect to obliquely incident lights and can control coloring.

Optical element, polarizing element, lighting device, and liquid crystal display

A polarizing plate is provided that has excellent polarization properties and high surface hardness and can have a reduced thickness. The polarizing plate includes a polarizer and a cured resin layer. The cured resin layer is formed directly on at least one surface of the polarizer. The cured resin layer is formed of a solventless photocurable composition containing the following components (A), (B), and (C):

Polarizing plate and image display including the same

An optical element of the invention comprises at least three laminated circular-polarization-type-reflection polarizers (a) whose wavelength bands for selective reflection of polarized light overlap one another; a layer (b) which is placed between at least a pair of the circular-polarization-type-reflection polarizers (a) and has a front retardation of substantially zero (in the normal direction) and a retardation of at least &#x3bb;/8 with respect to incident light inclined by at least 30&#xb0; relative to the normal direction; and a layer (b) which is placed between at least another pair of the circular-polarization-type-reflection polarizers (a) and has a front retardation of substantially zero (in the normal direction) and a retardation of at most &#x3bb;/2 with respect to incident light inclined by 60&#xb0; relative to the normal direction. The optical element condenses or collimates incident light from a light source and can control transmission of light at large incident angles relative to the normal direction, increase front brightness and reduce coloration.

Optical device, light-condensing backlight system, and liquid crystal display

Growing community of inventors

Ibaraki, Japan

Kazutaka Hara