Sekisui Chemical Co., Ltd.

Asahi Glass Company, Limited

Mitsubishi Materials Corporation

Jemco Inc.

Rensselaer Polytechnic Institute

Orient Chemical Industries, Ltd.

Kochi University of Technology

Bungo Hatta

Juichi Fukatani

Minoru Inada

Hirofumi Kitano

Nobuto Kamiya

Takazumi Okabayashi

Tadahiko Yoshioka

Masahiro Hagiwara

Jun Hikata

Takeshi Nakagawa

Kazuhiko Nakayama

Tetsuya Yamamoto

Yuji Masaki

Takahiro Futamura

Minoru Tomozawa

Naoyuki Morimoto

Yoshiaki Tamai

A piezoelectric sensor including: a piezoelectric sheet; a first ground electrode integrally laminated on a first side of the piezoelectric sheet and having a first cutout section; a signal electrode integrally laminated on a second side of the piezoelectric sheet and having a third cutout section; and a second ground electrode integrally laminated on the signal electrode so as to be electrically insulated from the signal electrode and having a second cutout section. The cutout sections of the signal electrode, the first ground electrode, and the second ground electrode are at least partially overlapped with one another in a thickness direction of the piezoelectric sheet. A portion of the piezoelectric sheet exposed from a portion where the cutout sections of the signal electrode, the first ground electrode, and the second ground electrode are overlapped with one another serves as an exposed section.

Piezoelectric sensor including overlapping cutout sections in a signal electrode, a first ground electrode, and a second electrode

The present invention provides an electret sheet which can maintain a high generated voltage even if a large amount of pressure has been applied. Disclosed is an electret sheet of the present invention including an electrically charged propylene-based resin foam sheet which contains a crosslinked propylene-based resin that includes a propylene-&#x3b1;-olefin random copolymer having a weight average molecular weight of 370,000 to 420,000 at a proportion of 60% by weight or more, and has a gel fraction of 30% to 50% by weight, and in which the average thickness is 90 to 150 &#x3bc;m, and the average number of foam cells in the thickness direction is 2 to 4 cells.

Electret sheet and piezoelectric sensor

An interlayer film for laminated glass that suppresses the transmittance of ultraviolet rays with a wave length of 400 nm to 1% or less, and has high light resistance. The interlayer film for laminated glass comprises a thermoplastic resin, an ultraviolet absorber having a structure of formula (1), and an ultraviolet absorber having a structure of formula (2), wherein the amount of the ultraviolet absorber of formula (1) is 0.001 to 0.05% by weight, and the amount of the ultraviolet absorber of formula (2) is 0.5 to 1.0% by weight; wherein Ris a Calkyl group; Ris hydrogen, a Calkyl group, or a Caralkyl group; Ris hydrogen or a Calkyl group; and Ris hydrogen or a Calkyl group.

Interlayer for laminated glass, and laminated glass

An interlayer film for a laminated glass and a laminated glass, which do not cause an increase in a haze value due to moisture absorption and have excellent moisture resistance are provided. An interlayer film for a laminated glass which contains a polyvinyl acetal resin and a moisture resistance improver is provided.

Interlayer film for laminated glass and laminated glass

A dispersion of tin-doped indium oxide fine particles has tin-doped indium oxide fine particles, a plasticizer for an interlayer film, an organic solvent containing alcohols as a main component, and a dispersion stabilizer, wherein under measuring conditions of a concentration of tin-doped indium oxide fine particles of 0.7% by weight and an optical path length of a glass cell of 1 mm, a visible light transmittance is 80% or more, a solar radiation transmittance at a wavelength within a range from 300 nm to 2100 nm is &#xbe; or less of the visible light transmittance, a haze value is 1.0% or less, and a reflection yellow index is &#x2212;20 or more.

Tin-doped indium oxide fine particle dispersion, method for manufacturing the same, interlayer film for laminated glass with heat ray blocking properties formed by using said dispersion, and laminated glass therewith

An interlayer film for a laminated glass which reduces transmittance of ultraviolet rays having wavelength of 380 to 400 nm and has an excellent durability to light exposure, while maintaining high visible light transmittance. The interlayer film for a laminated glass comprises a thermoplastic resin and an indole compound having a structure represented by the following chemical formula 1: Wherein Rrepresents an alkyl group having 1-3 carbon atoms, and Rrepresents hydrogen, an alkyl group having 1-10 carbon atoms, or an aralkyl group having 7-10 carbon atoms.

The present invention has its object to provide an interlayer film for a laminated glass, which is excellent in penetration resistance, moisture resistance, and sound insulation. The present invention relates to an interlayer film for a laminated glass, which comprises: a polyvinyl acetal resin; and a plasticizer, the plasticizer being represented by formula (1): wherein Rrepresents a phenyl group, Rrepresents an alkylene group having 2 to 4 carbon atoms, and n represents 4 to 6.

Intermediate film for laminated glasses

The invention relates to a process for making a SiO&#x2014;REO&#x2014;AlOglass comprising preparing a glass according to a conventional process wherein the conventional process comprises a step of heat treating a mixture of SiO, REO, and AlOat a temperature greater than the spinodal temperature for 0.1 to 10 hours wherein REOis a rare earth oxide and RE is a rare earth element chosen from Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and combinations thereof. The invention also relates to glasses prepared by the process and glass lasers, optical amplifiers and laminated glass that comprise the glass prepared by the process.

Process for making rare earth containing glass

A method of reforming an interlayer film for heat-insulating laminated glass by which an interlayer film for heat-insulating laminated glass capable of exhibiting an excellent optical property may be obtained even if heat-insulating fine particles covered with an inert substance are used, an interlayer film for heat-insulating laminated glass, and laminated glass is provided. The method comprises irradiating an interlayer film for heat-insulating laminated glass comprising a heat-insulating fine particle covered with an inert substance, a matrix resin, and a liquid plasticizer with a high energy ray comprising an electromagnetic wave having energy of 3.0 eV or more to improve transmittance of visible light having a wavelength of 380 to 780 nm, and also to reduce transmittance of a near-infrared radiation having a wavelength of 780 to 2100 nm.

Method of reforming interlayer film for heat-insulating laminated glass

A gallium containing zinc oxide with an improved heat ray shielding function while keeping high transparency to visible light rays is provided. A gallium containing zinc oxide, which has a heat ray shielding function, a gallium content in the range of 0.25 to 25 % by weight, and a carrier electron density nof 2&#xd7;10/ cmor higher.

Gallium containing zinc oxide

It is an object of the present invention to provide an interlayer film for a laminated glass and a laminated glass, which do not cause an increase in a haze value due to moisture absorption and have excellent moisture resistance. The present invention is directed to an interlayer film for a laminated glass, which contains a polyvinyl acetal resin and a moisture resistance improver.

The present invention aims to provide an interlayer film for a laminate glass to obtain a laminate glass which is excellent in transparency, heat-shielding property, and electromagnetic wave transmittance even if the laminate glass is produced by sandwiching the interlayer film for a laminate glass with one pair of glasses, and which is not deteriorated in the visible light transmittance and the initial optical properties and is excellent in weathering-resistance after the test even if a durability test to light is run for the above-mentioned laminate glass.

Growing community of inventors

Koka, Japan

Bungo Hatta