Nec Corporation

Rakuten, Inc.

Yoshihiro Hirai

Hitoshi Ishikawa

Setsuo Kaneko

Masaharu Satoh

Kosuke Amano

An identifier () identifies an alternative product to an attended product getting attention from a user. A searcher () searches, when a search condition is given, a group of products satisfying the search condition. A first generator () generates a first search condition expected to obtain a search result containing the attended product and the alternative product. A verifier () verifies, based on an obtained first search result by the searcher () that has searched under the generated first condition, whether or not the first search condition is proper. A second generator () generates a second search condition that is the first search condition verified as proper and with an added or replaced condition of a price range that is different from a price range of the attended product. A presenter () presents an obtained second search result to the user by the searcher () that has searched under the generated second condition.

Searching device, searching method, recording medium, and program

A light-resistant polyaniline light-shielding film, comprising a thin polyaniline film in which Lewis acid is contained in an amount of 0.1 to 5 mol % per monomer unit of the polyaniline. The thin film is used as a black matrix for a liquid crystal display device. The device thus obtained has high reliability.

Growing community of inventors

Tokyo, Japan

Yoshihiro Hirai