Polymatech Co., Ltd.

Japan Society for the Promotion of Science

Ricoh Company, Ltd.

Tsunehisa Kimura

Masayuki Tobita

Shinya Tateda

Masafumi Yamato

Masahumi Yamato

Naoyuki Shimoyama

Toru Kimura

Shigeyuki Harada

Hisashi Aoki

Koichi Kitazawa

Tsukasa Ishigaki

Tobita Masayuki

Haruka Nakazawa

Shogo Mamada

A disclosed liquid crystal display device includes a liquid crystal composition contained in a cell having a liquid crystal alignment film. The liquid crystal alignment film has a lamellar structure and includes at least one type of a triphenylene compound (I) represented by general formula (1):  In general formula (1), L represents &#x2014;O&#x2014; or &#x2014;S&#x2014;; R, R, R, R, and Rrepresent the same or different hydrocarbon radicals with 4 or more carbon atoms; Rrepresents a divalent hydrocarbon radical with 4 or more carbon atoms; and Rrepresents &#x2014;SiRRRor &#x2014;P(&#x2550;O)(OH)where R, R, and Reach individually represents &#x2014;Cl, &#x2014;OH, &#x2014;OCH, or &#x2014;OCH.

Liquid crystal display device and display apparatus

A mold product comprising liquid crystal composition for conducting heat. The liquid crystal composition contains liquid crystal polymer having an orientation degree &#x3b1; obtained by equation 1 below:Orientation degree &#x3b1;=(180&#x2212;&#x394;&#x3b2;)/180 equation 1In equation 1, &#x394;&#x3b2; is a half width in the intensity distribution obtained by fixing peak scattering angle in X-ray diffraction measurement and by varying the azimuth angle from 0 to 360 degrees, and orientation degree &#x3b1; is in a range between 0.5 and 1.0.

Heat conducting polymer mold products

A thermally conductive formed article according to the present invention includes a matrix, and short carbon fibers which are present in the matrix. The short carbon fibers are oriented in a fixed direction in the matrix. A ratio I/Ibetween an intensity Iof a diffraction peak ascribable to a (110) surface of carbon and an intensity Iof a diffraction peak ascribable to a (002) surface of carbon, occurring when X-rays are irradiated onto the thermally conductive formed article along the direction of orientation of the short carbon fibers, is 10 or less.

Thermally conductive formed article and method of manufacturing the same

This invention relates to a method of producing polymer spherical bodies and is to produce a large size spherical body having no residual strain. This method comprises suspending a liquid monomer in a supporting liquid having a magnetic susceptibility &#x3c7;larger than a magnetic susceptibility &#x3c7;of any one of the monomer and the resulting polymer and not dissolving substantially the monomer, and applying a gradient magnetic field to the supporting liquid to float droplets of the monomer at a given position in the supporting liquid, and polymerizing and solidifying the droplets while maintaining a state that the droplet is substantially shaped into a sphere through surface tension. This method is made possible to produce polymer spherical bodies capable of using in optical application and the like.

Method of producing polymer spherical bodies

The present invention provides an adhesion method of improving the heat conduction in a fixed direction by using a heat conductive adhesive made by blending boron nitride powder and adhesive polymer and adhering by orienting boron nitride powder in the heat conductive adhesive to the fixed direction under the magnetic atmosphere and an electronic component for effectively dissipating heat generated from semiconductor device, power source, light source or other components used for the electric products, and an electronic component excellent in radiation.

Adhesion method and electronic component

Under a magnetic field gradient, solid particles floating and/or sinking in a supporting liquid (most suitably a paramagnetic one) are levitated or anti-levitated at different locations depending on their densities and diamagnetic susceptibilities.

Method for separation of plastic mixtures based on magneto-archimedes levitation

A method of manufacturing a heat conductive molded part having determined heat conductivity properties is provided. The method includes providing a polymer composition containing boron nitride powder. A magnetic field is impressed to the polymer composition containing boron nitride powder, field orienting the boron nitride powder in the polymer composition to a fixed direction. The polymer composition is set containing boron nitride powder with the boron nitride powder oriented in the polymer composition to the fixed direction. The polymer composition may also be provided containing a solvent. The solvent is removed after field orienting the boron nitride powder in the polymer composition to the fixed direction The composition is then set with the field oriented boron nitride powder after having removed the solvent.

Heat conductive mold and manufacturing method thereof

The present invention provides an adhesion method of improving the heat conduction in a fixed direction by using a heat conductive adhesive made by blending boron nitride powder and adhesive polymer and adhering by orienting boron nitride powder in the heat conductive adhesive to the fixed direction under the magnetic atmosphere and an electronic component for effectively dissipating heat generated from semiconductor device , power source , light source or other components used for the electric products, and an electronic component excellent in radiation.

Growing community of inventors

Tokyo, Japan

Tsunehisa Kimura