Canon Kabushiki Kaisha

Canon Finetech Inc.

Asahi Kasei Kabushiki Kaisha

Hiroshi Kakihira

Hirokazu Hyakuda

Hisao Kamo

Tetsuro Noguchi

Hiroshi Asakawa

Goshu Nagino

Yohei Itoi

Provided is an apparatus for generating a operation plan of a hydrogen production system comprising a hydrogen production apparatus, comprising: a demand predicting unit for generating a predicted demand amount for each of a plurality of types of hydrogen with a different environmental load of production over a target period of the operation plan; and an operation planning unit for generating the operation plan, which is for generating a plurality of types of hydrogen with a different environmental load of production by the hydrogen production apparatus, based on a predicted hydrogen demand amount of each of the plurality of types of hydrogen.

Apparatus, method, and recording medium

The invention relates to an ink jet recording medium, in which at least one of a substrate and an ink receiving layer contains a compound of the general formula (1): wherein Rand Rare individually a hydrogen atom, a hydroxyl group, a linear or branched alkyl group or a substituted or unsubstituted aryl group, with the proviso that Rand Rmay be the same or different from each other, Ris a linear or branched alkylene group or arylene group, and X is an acidic solubilizing group.

Ink jet recording medium and production process thereof, and fine particle dispersion

The invention provides an ink jet recording medium excellent in light fastness, gas fastness and uniform ink absorption. The ink jet recording medium has a substrate and an ink receiving layer provided on at least one surface of the substrate. The ink receiving layer contains a compound represented by the general formula (1): wherein R, Rand Rare individually a linear or branched alkyl group having 1 to 20 carbon atoms, with the proviso that at least one of R, Rand Rhas a hydroxyl group.

Ink jet recording medium

'A high-molecular compound or high-molecular antioxidant obtained by reacting at least three compounds of (A) a sulfur-containing organic compound having at least two active hydrogen atoms, (B) a polyisocyanate compound having at least two isocyanate groups and (C) an amine compound having at least two active hydrogen atoms and then cationizing with an acid at least some of amino groups in a resultant reaction product' or 'a high-molecular antioxidant obtained by reacting at least three compounds of (A) a sulfur-containing organic compound having at least two active hydrogen atoms, (B) a polyisocyanate compound having at least two isocyanate groups and (E) a nonionic polyol compound having at least two active hydrogen atoms' and a recording medium obtained by using the high-molecular antioxidant. The present invention provides a recording medium, which effectively prevents discoloration or color fading of images by acidic gas in the atmosphere and light and also migration of the images at high temperature and high humidity, and therefore, is suited for the long-term storage of the images.

Antioxidants and recording media by using the same

The invention provides an ink jet recording medium which attains the prevention of the bronzing of cyan ink and the prevention of the migration of magenta ink at the same time and is excellent in image characteristics. The ink jet recording medium comprises a substrate and an ink-receiving layer provided with at least an upper layer as the outermost layer and a lower layer as a layer lying just under the upper layer, both layers having a porous structure formed of an alumina hydrate and a binder, wherein both of the upper and lower layers contain an alkylsulfonic acid and only the lower layer contains a cationic polymer.

Ink jet recording medium and method of producing the same

A polymer compound comprises a unit composed of a sulfur-containing compound (A) having at least two active hydrogen groups, a unit composed of a compound (B) having at least two isocyanate groups and a unit composed of an amine compound (C) having at least two active hydrogen groups, and having an average particle size of 200 nm or smaller. The polymer compound can be used in a recording medium.

Growing community of inventors

Fuzi, Japan

Hiroshi Kakihira