Nitto-denko Corporation

Naotaka Higuchi

Katsunori Takada

Yoshitsugu Kitamura

Keisuke Kimura

Kota Nakai

Hitoki Kanagawa

Eiko Suefusa

Shinobu Nagano

Tetsuya Ohsawa

Hiroki Kuramoto

Kenkichi Yagura

Tadashi Takahashi

Youichirou Sugino

Daisuke Yamauchi

Akinori Itokawa

A primary object of the present invention is to provide a polarizing plate excellent in durability. A polarizing plate () according to an embodiment of the present invention includes: a polarizer (); and a protective film (and) arranged on at least one side of the polarizer (). The polarizing plate () has a dimensional change ratio of &#x2212;0.2% or more in a transmission axis direction thereof when the polarizing plate () cut into a size measuring 100 mm by 100 mm is bonded to a glass plate with a pressure-sensitive adhesive and the following operation is repeated 100 times: the polarizing plate () bonded to the glass plate is left to stand under an atmosphere at &#x2212;40&#xb0; C. for 30 minutes and then left to stand under an atmosphere at 85&#xb0; C. for 30 minutes.

Polarizing plate

There is provided a polarizing plate excellent in durability. A polarizing plateaccording to one embodiment of the present invention includes a polarizer; and a pair of protective filmsrespectively arranged on both main surfaces of the polarizer, wherein the polarizing platehas a polarizer void portionformed by positioning of an end surfaceof the polarizerinward in a plane direction relative to each of end surfacesof the protective films

Polarizing plate and method for producing same

There is provided a polarizing plate which is imparted durability. A polarizing plats with a pressure-sensitive adhesive, layer according to an embodiment of the present invention includes: a polarizing plate including a polarizer and a protective film arranged on at least one side of the polarizer; and a pressure-sensitive adhesive layer formed on at least one surface of the polarizing plate, wherein in the surface of the polarizing plate where the pressure-sensitive adhesive layer is formed, a non-contact portion that is out of contact with the pressure-sensitive adhesive layer is formed in an end portion of the polarizing plate.

Polarizing plate with pressure-sensitive adhesive layer

There is provided a polarizer excellent in durability. A polarizer according to one embodiment of the present invention includes a resin film containing boric acid, wherein the resin film has a low-concentration portion, which contains a lower concentration of the boric acid than that in any other site, formed in an end portion thereof.

Polarizer, polarizing plate, and method for producing polarizer

A wired circuit board includes a metal supporting layer, a first insulating layer, a conductive layer, a second insulating layer, and a ground layer. The first opening of the first insulating layer is surrounded by the second opening of the second insulating layer when projected in the thickness direction, and the ground layer fills the first opening via the second opening so as to come in contact with an upper surface of the metal supporting layer. Alternatively, the first opening surrounds the second opening when projected in the thickness direction, the second insulating layer fills a peripheral end portion of the first opening, and the ground layer fills the second opening so as to come in contact with the upper surface of the metal supporting layer.

Wired circuit board

A suspension board with circuit includes a metal supporting layer, an insulating base layer formed on the metal supporting layer, a conductive layer formed on the insulating base layer, and a slider supported on the metal supporting layer via a pedestal. The conductive layer includes a conductive overlapping portion which overlaps a plane on which the slider is projected when projected in a thickness direction. The conductive overlapping portion is provided to be spaced apart from the slider.

Suspension board with circuit

A suspension board with circuit includes a mounting portion for mounting thereon a slider, a supporting portion for supporting one end portion of the mounting portion, a facing portion facing the mounting portion to be spaced apart therefrom, and a driving portion provided between the mounting portion and the facing portion. The driving portion includes a heater; and an expansive portion which is thermally expanded by heat generated from the heater.

A wired circuit board for electrically connecting a suspension board with circuit comprising a metal supporting layer, an insulating base layer, a conductive layer, and an insulating cover layer, and an external circuit, includes a first wired circuit board electrically connected with the suspension board with circuit; and a second wired circuit board for electrically connecting with the external circuit. The first wired circuit board and the second wired circuit board are electrically connected through a preamplifier. The first wired circuit board includes a first metal supporting layer; a first insulating base layer; a first conductive layer and a first insulating cover layer.

Wired circuit board and connection structure between wired circuit boards

A wired circuit board holding sheet that can permit easy judgment on whether a cutting notch formed has a predetermined depth, and a production method of the wired circuit board holding sheet that can produce the wired circuit board holding sheet simply and easily. In the wired circuit board holding sheetcomprising a sheetholding therein a plurality of separable wired circuit boards, the respective wired circuit boardsare held in the sheetvia jointsto be cut, and cutting notchesto facilitate cutting of the jointsand marking notchesto indicate that the cutting notcheshave a predetermined depth to cut the jointsare formed simultaneously in both front and back surfaces of the jointsby using punches having combination of a main punch portionand a sub-punch portion

Growing community of inventors

Osaka, Japan

Naotaka Higuchi