Keiwa Inc.

Nec Communications Systems, Ltd.

Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Hiroaki Ueno

Tetsuya Ito

Akira Matsumoto

Koji Shibata

Kenichi Abe

Yoko Suzuki

Chengheng Tsai

Dai Someya

Naoki Yokoyama

Akira Shimomura

An optical sheet laminateis built in a backlight unit. The optical sheet laminateincludes a plurality of diffusion sheetseach having a first surfacehaving a plurality of recesseshaving a substantially inverted quadrangular pyramid shape, and a pair of prism sheetsandarranged above the plurality of diffusion sheetsand having prism extending directions perpendicular to each other. The recesseshave an apex angle of 95° or more. The recessesare arrayed in a two-dimensional matrix. The prism extending direction of a lower prism sheetand the arrangement direction of the recesseson an upper diffusion sheetA intersect with each other at an angular difference of 30° or less.

Optical sheet laminate, backlight unit, liquid crystal display device, information equipment, and production method for backlight unit

A wireless apparatus which can realize a DFS function that avoidance of interference with radar is considered in an Ad-Hoc mode under a multihop circumstance is provided. A Beacon frame is transmitted at a shorter interval than a previously set interval when radar is detected by wireless apparatuses Nto Nwhich have a DFS function which perform avoidance of interference with radar.

Wireless apparatus, wireless communication system, control method, and control program

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Tokyo, Japan

Hiroaki Ueno