Fuji Photo Film Company, Limited

Other

Takayuki Hayashi

Toshimasa Usami

Toshiharu Tanaka

Yuichi Itabashi

Ken Iwakura

Masato Satomura

Akira Igarashi

Hiroharu Matsukawa

Naoto Yanagihara

Kensuke Ikeda

Yoshiyuki Hoshi

Kenji Ikeda

Tadao Kimura

Takekatsu Sugiyama

Fujio Kakimi

Masataka Kiritani

Hiroshi Kamikawa

Hideo Nagano

Katsuhiko Watanabe

Kazuo Niwa

In a method for detecting abnormality in a parallel battery-connection circuit, the parallel battery-connection circuit includes: a first circuit including a first plurality of batteries connected in series and a second circuit including a second plurality of batteries connected in series; wherein: at least one of the first plurality of batteries is connected to a first temperature detection section, at least one of the second plurality of batteries is connected to a second temperature detection section, and the first temperature detection section and the second temperature detection section are connected to an abnormality determining section for determining abnormality in the parallel battery-connection circuit, the method comprising the steps of: detecting a first temperature of the at least one of the first plurality of batteries by the first temperature detection section; detecting a second temperature of the at least one of the second plurality of batteries by the second temperature detection section; and determining abnormality in the parallel battery-connection circuit by the abnormality determining section based on a temperature difference between the first temperature detected by the first temperature detection section and the second temperature detected by the second temperature detection section.

Method and apparatus for detecting battery abnormality in a parallel battery-connection circuit

A process for the preparation of microcapsules having a wall membrane made of a polyurethane urea resin, which includes steps of mixing an oily solution and an aqueous solution, passing the resulting mixed solution through a clearance between an inner cylinder and an outer cylinder which are rotated relative to each other to form an oil-in-water type emulsion, and then forming a wall membrane on droplets of the resulting emulsion. In a preferred embodiment, the clearance between the inner cylinder and the outer cylinder is preferably in the range of 0.05 to 5 mm, more preferably 0.1 to 2 mm. The retention time of the emulsion in the clearance portion is in the range of 0.02 seconds or more, preferably 0.2 seconds or more. The inner and outer cylinders are in the form of column, optionally conical in part thereof.

Process for preparing microcapsules

A heat-sensitive recording material comprising a support having provided thereon a heat-sensitive recording layer, wherein the support comprises a fine porous membrane sheet comprising a synthetic resin and/or cellulose derivative.

Heat-sensitive recording materials

A heat-sensitive recording material comprising a support having provided thereon a heat-sensitive color forming layer containing a colorless or slightly colored electron donating dye precursor and an electron accepting compound capable of forming color by the reaction with the electron donating dye precursor, wherein the heat-sensitive color forming layer contains a 1-alkoxyphenoxy-2-aryloxypropane. The recording material exhibits high sensitivity and satisfactory preservation stability.

Heat-sensitive recording material

A heat-sensitive recording material comprising a support having provided thereon a heat-sensitive recording layer, wherein (a) a microporous layer comprising at least one of a synthetic resin and a cellulose compound or (b) a layer comprising porous grains comprising secondary particles bound to the surface of primary particle as core is provided between the heat-sensitive recording layer and the support of the recording material.

A recording material comprising an electron donating colorless dye and an electron accepting compound is disclosed, the recording material further comprising, as a heat-fusible substance, a benzyl ether derivative represented by formula (I): ##STR1## wherein R represents a halogen atom or a substituted or unsubstituted alkoxy group; and when R is a substituted or unsubstituted alkoxy group, X, Y and Z, which may be same or different, each represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group or a halogen atom; and when R is a halogen atom, X represents a substituted or unsubstituted alkoxy group, and Y and Z each represents a hydrogen atom. The recording material exhibits improved color developability and color forming sensitivity.

Recording material

A heat-sensitive recording material is disclosed, which comprises a support having thereon a heat-sensitive recording layer comprising a diazo compound and a coupler precursor compound, said coupler precursor compound being capable of forming a compound having an ability of coupling with said diazo compound upon heating.

Heat-sensitive recording material with diazonium salt and coupler

A process for the production of a heat-sensitive recording material in which a color former causing a color formation reaction and a developer forming color on reaction with the color former are incorporated in a heat-sensitive recording layer, and at least one of the color former and the developer is contained in microcapsules having walls which are impermeable to both the color former and the developer at ordinary temperature but which becomes permeable to at least one of the color former and the developer on heating, where the heat-sensitive recording layer is coated on a support which is then subjected to surface treatment by passing it through a pressure applying apparatus comprising a metallic roll and an elastic roll in such a manner that the heat-sensitive recording layer is in contact with the metallic roll.

Process for preparation of heat-sensitive diazo microcapsule recording

A heat-sensitive recording material is disclosed, comprising a support having provided thereon a heat-sensitive recording layer containing microcapsules containing a color former and an organic solvent as core materials and a color developer exterior thereto, the wall of said microcapsules being impermeable to both of the color former and the color developer at room temperature but becoming permeable to at least one of the color former and color developer upon the application of heat, wherein the heat-sensitive recording layer further contains a pigment having an average particle size greater than that of the microcapsules. The material exhibits improved handling and running properties.

A heat-sensitive recording material comprising a support having provided thereon a heat-sensitive recording layer, the heat-sensitive recording layer containing a diazo compound encapsulated in microcapsules and a component capable of undergoing a color forming reaction with said diazo compound, wherein a protective coating layer containing as a binder a modified polyvinyl alcohol containing silicon atoms, and at least one of colloidal silica and amorphous silica is applied on the surface of the heat-sensitive recording layer.

A heat-sensitive recording paper is described, comprising a support having formed thereon a heat-sensitive recording layer containing a colorless or pale-colored electron donating dye precursor and an electron accepting substance that reacts with said electron donating dye precursor to develop color, and an overlying protective layer containing a water-soluble polymeric binder and a pigment, wherein the back side of the support is provided with a backcoat layer containing an alkali salt of a styrene-maleic acid copolymer.

Heat-sensitive recording paper

A heat-sensitive recording paper is disclosed, comprising a base having thereon (a) a heat-sensitive color forming layer containing a substantially colorless electron donating dye and an acid substance capable of forming a coloration by coming into contact with said dye upon heating, wherein a coating layer containing a binder comprising modified polyvinyl alcohol containing silicon atoms in the molecule and at least one of colloidal silica and amorphous silica is provided on said color forming layer.

A process for producing microcapsules comprising forming capsule membranes of a polymer of melamine and formaldehyde in the presence of a styrene-sulfonic acid polymer.

Process for producing microcapsules

A method of preparing a dispersion of microcapsules whose walls comprise formaldehyde as one of the wall components characterized by adding urea, a sulfite or a hydrogensulfite to said dispersion.

Growing community of inventors

Shizuoka, Japan

Takayuki Hayashi