Kuraray Co., Ltd.

National Food Research Institute

Yukihiro Yanagawa

Yuji Kikuchi

Motohiro Fukuda

Masaru Karai

Taiji Nishi

Seiji Kinoshita

Takenori Kitani

Takumi Yagi

Hiroko Kikuchi

A cell culture plate has a plurality of flow channels, uneven pattern areas and through holes. The flow channels are formed between the uneven pattern areas, and culture solution flows from the flow channels into the uneven pattern areas or from the uneven pattern areas into the flow channels. The uneven pattern area has uneven patterns that create a cell culture space.

Cell culture plate and method of manufacturing the same

A light guide plate capable of omitting use of a directional sheet such as a prism sheet as much as possible and ensuring a viewing angle without decreasing brightness in the vertical direction. A light guide plateis used for an edge-light surface illuminant device. The light guide plate comprises an emission plane, a bottom planefacing the emission planeand an incident end facewhich enters light emitted from a primary light sourceprovided in a side face between the emission planeand the bottom plane. Each of the emission planeand the bottom planecomprises a pattern having convex portions and/or concave portions formed at predetermined pitches. The pattern formed on the emission planeis orthogonal to the incident end faceand also the pattern formed on the bottom planeis parallel to the incident end face. The emission planeor the bottom planecomprises a trapezoidal convex portionand a trapezoidal concave portionwhich are alternately arranged. If a diffusion treatment is performed on the surface of each of the convex portions, the light guide plate which has reduced glare on the surface and has a superior surface quality can be obtained.

Light guide plate, production method therefor, and surface light source device provided with it

The present invention is to provide a resin-forming mold having high releasability and permitting a production without increasing production costs. The resin-forming mold can be used to produce a resin-molded product having minute uneven portions on a front face thereof, such as a surface light source device-use light guide for a liquid crystal display, an aspherical micro-lens, micro-Fresnel lens and an optical disk. In the stamper (resin-forming mold)provided with an electroformed layerand a conductive filmformed on the electroformed layer, the front face layerof the conductive filmis formed of aluminum and a back faceis formed of nickel as an electroconductive metal. In addition, the constituent composition of the aluminum and the nickel continuously changes from the front facetoward the back face. The front facemay be formed of aluminum and oxygen. The aluminum may combine with the oxygen to form an oxide of aluminum.

Resin forming mold and production method for the resin forming mold

Growing community of inventors

Kamisu, Japan

Yukihiro Yanagawa