Teijin Limited

Panasonic Intellectual Property Management Co., Ltd.

Hiroki Sano

Satoshi Nishikawa

Takashi Yoshitomi

Hiroshi Hara

Masumi Hirata

Takeru Ohki

Takumi Kato

Kazuaki Nishimura

Tetsushi Itano

Tatsuichiro Kon

Takashi Toyozumi

Ryouichi Uemoto

Masaki Takeuchi

Jianwei Shi

Makoto Kurozawa

Shoichi Takagi

Tetsuya Koyanagi

Takeuchi Masaki

A speaker diaphragm includes an edge formed from an elastomer, and a diaphragm body that is to be joined to the edge. A joint between the edge and the diaphragm body includes a melting portion between the edge and the diaphragm body.

Speaker diaphragm, speaker, speaker diaphragm manufacturing method, electronic device, and mobile body apparatus

A fiber-reinforced plastic joined body is provided, in which a fiber-reinforced molded article (X) containing carbon fibers and a thermoplastic resin and having a joining surface (x), and a thermoplastic resin member (Y) having a joining surface (y) are welded via the joining surfaces (x) and (y) by applying ultrasonic to the molded article (X), and in which:

Fiber-reinforced plastic joined body, method for producing fiber-reinforced plastic joined body, and fiber-reinforced molded article

There is provided a fiber-reinforced resin joined body, including: a fiber-reinforced resin shaped product A containing reinforcing fibers and a thermoplastic resin, and including at least one a protrusion part with a buckling strength of 80 MPa to 450 MPa; and a member B including at least one through hole, wherein the protrusion part of the fiber-reinforced resin shaped product A is inserted into the through hole of the member B, and a caulked part is provided in a portion of the protrusion part, protruding from the through hole.

Fiber-reinforced resin joined body having caulked part and manufacturing method thereof

A polyolefin microporous membrane, the membrane having, when measured by DSC, a degree of crystallinity of from 65 to 85%, a lamellar crystal/crystal ratio of from 30 to 85%, a crystal length of from 5 nm to 50 nm and an amorphous length of from 3 nm to 30 nm, and a polyolefin microporous membrane, the membrane having, when measured by X-ray diffractometry, crystal size of from 12.5 nm to 13.5 nm and a degree of crystallinity of from 64 to 68%.

Polyolefin microporous membrane, separator for non-aqueous secondary battery, non-aqueous secondary battery and method of producing polyolefin microporous membrane

There is provided a joined body in which two or more members Yi including a fitting hole are fastened, in which a fastening rod including reinforcing fibers and a thermoplastic resin is positioned in the fitting hole, the fastening rod is caulked by heat, and the members Yi are caulking-fastened.

Fiber reinforced resin joined body, intermediate body, and fastening rod

There is provided a method for manufacturing a joint member obtained by joining a carbon fiber composite material containing a thermoplastic resin as a matrix and a metal. The method includes a step (i) of forming an uneven shape having a depth of 0.02 to 0.6 mm on a surface of the metal at a joining portion; a step (ii) of providing a thermoplastic resin layer having a thickness in the range of 5&#x3bc;m or more and 5 mm or less at a joining portion between the surface of the metal and a surface of the composite material; and a step (iii) of melting the thermoplastic resin layer by heating the joining portion to thereby combine the metal and the composite material into one.

Method for manufacturing joint member and joint member

In a manufacturing method of a decorative molded article, in which a surface of a fiber-reinforced resin shaped product including carbon fibers in which some carbon fibers are contained in a form of carbon fiber bundle and a thermoplastic resin, is decorated in the mold, a decorative molded article having excellent surface smoothness and an excellent appearance is provided by controlling a pressure in the mold during cooling.

Manufacturing method of decorative molded article and decorative molded article

An example of the present invention is provided with porous sheetseach formed by layering a porous base material including a polyolefin and a heat-resistant porous layer including a heat-resistant resin. The porous sheets, respectively, are connected at connecting regionsandand, respectively, which have been formed by thermal fusion of the heat-resistant porous layers facing each other by folding the sheets. Furthermore, the porous sheetsare additionally connected at a connecting regionthat has been formed by thermal fusion.

Connected porous sheet and method for producing the same, separator for non-aqueous secondary battery, and non-aqueous secondary battery, and method for producing the same

The present invention provides a separator for a non-aqueous secondary battery, the separator including: a polyolefin microporous membrane having a degree of crystallinity of from 60 to 85% and a tie molecular volume fraction of from 0.7 to 1.7%; and a heat resistant porous layer containing a heat resistant resin and provided on one side or both sides of the polyolefin microporous membrane.

Polyolefin microporous membrane and method of producing the same, separator for non-aqueous secondary battery and non-aqueous secondary battery

The present invention provides a polyolefin microporous membrane in which a degree of crystallinity is from 60 to 85%, and a tie molecular volume fraction is from 0.7 to 1.7%.

The invention provides a heat-conductive adhesive with high heat spread properties and excellent handleability. A pitch-based carbon fiber filler with high thermal conductivity and a smooth surface is combined with an adhesive resin to produce a heat-conductive adhesive with controlled viscosity and excellent handleability.

Heat-conductive adhesive

A carbon fiber composite sheet obtained by combining a carbon fiber aggregate with a thermosetting resin component selected from the group consisting of thermosetting silicone-based gel components, thermosetting epoxy resin components and thermosetting silicone resin components, and then curing the thermosetting resin component, the carbon fiber composite sheet having crystallite sizes of at least 5 nm in the direction of growth of the hexagonal mesh surface of the carbon fibers composing the carbon fiber aggregate, and the carbon fiber composite sheet having a thermal conductivity of at least 2 W/(m&#xb7;K).

Carbon fiber composite sheet

An object of the present invention is to provide carbon fibers which have a high conductivity, readily form a network in a matrix and are suitable for use in a radiating member as well as a molded product thereof. The present invention is pitch-based carbon fibers which are obtained from mesophase pitch and have an average fiber diameter (AD) of 5 to 20 &#x3bc;m, a ratio (CVvalue) of the degree of filament diameter distribution to average fiber diameter (AD) of 5 to 15, a number average fiber length (NAL) of 25 to 500 &#x3bc;m, a volume average fiber length (VAL) of 55 to 750 &#x3bc;m and a value obtained by dividing the volume average fiber length (VAL) by the number average fiber length (NAL) of 1.02 to 1.50, and a manufacturing method and molded product thereof.

Growing community of inventors

Iwakuni, Japan

Hiroki Sano