Konishiroku Photo Industry Co., Ltd.

Chugai Seiyaku Kabushiki Kaisha

Morio Kobayashi

Takashi Sasaki

Kenichiro Okaniwa

Noboru Fujimori

Mikio Koyama

Takashi Uchida

Toshiaki Yamazaki

Takanori Nakadate

Kazumi Arai

Kenichi Kitahara

Ryuji Shimosaki

Kunihiro Furukawa

Isao Haga

Mitsuto Fujiwhara

Noriki Tachibana

Hiroshi Sugita

Seiji Hidaka

Takashi Ishihara

Masakuni Saruhashi

Takasi Momose

Soichi Zanma

Hiroshi Iwadate

Souichi Zanma

An analytical element for analyzing a specific component in a liquid sample, comprising a light-transmissive and liquid-impermeable support having thereon successively a first reagent layer and a second reagent layer, and a porous spreading layer provided above said second reagent layer, and containing an electron transport agent, a dye-forming precursor material, an oxidized type coenzyme, a buffering agent and at least one reagent capable of converting said oxidized type coenzyme to a reduced type coenzyme through a specific component in a liquid sample, wherein said oxidized type coenzyme is contained in said porous spreading layer, and a lactate dehydrogenase inhibitor is contained in at least one of said second reagent layer and said porous spreading layer. According to this invention, error originating from LDH and lactic acid present in a biological liquid sample can be eliminated and the accuracy of analysis can be improved.

Analytical element

An analytical element to measure a specific component in a fluid samples comprising support, a layer containing a reagent provided the support and a spreading layer provided on above the reagent containing layer. In the spreading layer, an emzyme necessary for the reaction to produce a product capable of being detected with said reagent from the specific component is contained. The enzyme is protected from deterioration of activity during a manufacturing and preservation of the analytical element by means of the enzyme is included in the spread layer as a dispersion mixture with a protein and/or polypeptide. An accurate analytical result is stably obtained by the analytical element.

Multi-layer analytical element with preserved enzyme containing

An analytical element for the detection of hydrogen peroxide comprising a peroxidase-functional material, a hydrogen donor and a coupler, wherein the peroxidase-functional material and hydrogen donor are arranged so as to be separate from each other, for example in separate layers, but are made interactive by the application of a fluid sample.

Analytical element for the detection hydrogen peroxide

There is disclosed a dry analytical element for .alpha.-amylase in a fluid sample which comprises the analytical element including a starch capable of forming a complex with iodine, an iodine compound and an oxidizing agent, and the iodine compound and the oxidizing agent are disposed in the element so that iodine may be liberated therefrom when the fluid sample is brought into contact with the analytical element. The analytical element of this invention enables an easy, prompt and accurate dry quantitative analysis of a component in a fluid sample, especially a biological fluid sample by the use of visible light with the aid of a spectrophotometer.

Dry analytical element for .alpha.-amylase

A support for photographic use comprising a polyester film with at least one surface having a layer provided by coating with an aqueous coating composition, the coating composition comprising a copolymer containing (a) from about 0.01% to about 70% by weight glycidyl acrylate or glycidyl methacrylate with an expoxy-ring-opening ratio of the glycidyl group to the whole amount of epoxy rings of from 5 to 35 mole %; and (b) a monomer polymerizable with the glycidyl group selected from the group consisting of alkylacrylic acid ester, an alkylmethacrylic acid ester, an acrylamide, an N-alkylacrylamide, vinyl chloride, vinylidene chloride, styrene, a styrene derivative, a vinyl ether, a vinyl ester, a diolefin or a combination thereof.

Polyester film support having epoxy copolymer coating for photographic

Photographic support having coated over a polyester support as a subbing layer a specific aqueous copolymer composition, said subbing layer being formed by coating aqueous composition containing copolymer substantially composed of a specific combination of three or four monomer components. Said photographic support has firm adhesive property, good flatness and other advantages.

Photographic polyester supports with copolymer subbing layer

Light sensitive silver halide materials with a protective layer have improved slidableness and scratch resistance properties.

Protective coating for silver halide photographic light-sensitive

A method for hardening gelatin which involves reacting the gelation with a partially hydrolyzed dichloro-s-triazine derivative.

Gelatin hardening method and agents therefor

A silver halide color photographic material comprising a coupler represented by the following general formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 individually represent a substituted or unsubstituted alkyl, alkenyl, aryl, cycloalkyl group, or,

Light-sensitive silver halide color photographic material

A color photosensitive material comprising a support and a silver halide photosensitive layer containing compounds as represented by the following formula: ##STR1## wherein R, R.sub.1, R.sub.2, R.sub.3, C.sub.p, and X are as herein defined, is described.

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Sagamihara, Japan

Morio Kobayashi