Jx Nippon Oil Energy Corporation

Eneos Corporation

Tokyo Institute of Technology

Satoshi Masuyama

Takashi Seki

Suzushi Nishimura

Maki Fukuda

Hiroshi Matsuura

Hidetoshi Ogata

Yohei Shono

Yuji Shitara

Kazushi Kodama

Hideo Takezoe

Soon Moon Jeong

Madoka Takahashi

Won Hoe Koo

Madoka Fukushima

A lubrication method including lubricating a sliding member which contains at least one selected from the group consisting of a liquid crystal polymer and polyetheretherketone by using a lubricating oil composition which contains an ester as a lubricating base oil.

Lubrication method

A lubrication method including lubricating a sliding member which contains at least one selected from the group consisting of a liquid crystal polymer and polyetheretherketone by using a lubricating oil composition which contains at least one selected from the group consisting of a mineral oil and alkyl benzene as a lubricating base oil.

An optical substrate according to one embodiment includes a support substrate, and a projection-depression structure layer on a surface of which shapes of projections and depressions are formed, the projection-depression structure layer being laminated on the support substrate. The extending directions of projection portions contained in the projection-depression structure layer are irregularly distributed seen in planar view. An outline seen in planar view of a projection portion contained in a region per unit area of the projection-depression structure layer includes more straight line sections than curved line sections.

Optical substrate, mold to be used in optical substrate manufacture, and light emitting element including optical substrate

A method for producing a mold includes: applying a block copolymer solution made of first and second polymers on a base member; performing a first annealing process at a temperature higher than Tg of the block copolymer after drying the coating film; forming a concavity and convexity structure on the base member by removing the second polymer by an etching process; performing a second annealing process of the concavity and convexity structure at a temperature higher than Tg of the first polymer; forming a seed layer on the structure; laminating or stacking a metal layer on the seed layer by an electroforming; and peeling off the metal layer from the base member. The second annealing process enables satisfactory transfer of a concavity and convexity structure on the base member onto the metal layer.

Method for producing mold for minute pattern transfer, method for producing diffraction grating using the same, and method for producing organic EL element including the diffraction grating

A diffraction grating having a transparent supporting substrate; and a cured resin layer which is stacked on the transparent supporting substrate and which has concavities and convexities formed on a surface thereof, wherein when a Fourier-transformed image is obtained by performing two-dimensional fast Fourier transform processing on a concavity and convexity analysis image obtained by analyzing a shape of the concavities and convexities formed on the surface of the cured resin layer by use of an atomic force microscope, the Fourier-transformed image shows a circular or annular pattern substantially centered at an origin at which an absolute value of wavenumber is 0 &#x3bc;m, and the circular or annular pattern is present within a region where an absolute value of wavenumber is within a range of 10 &#x3bc;mor less.

Diffraction grating, organic EL element using the same, and manufacturing methods thereof

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Tokyo, Japan

Satoshi Masuyama