Terumo Kabushiki Kaisha

Other

Terumo Corporation

Matsushita Electric Industrial Co., Ltd.

Du Pont-mitsui Polychemicals Co., Ltd.

Oyama, Noboru

Noboru Oyama

Takeshi Shimomura

Shuichiro Yamaguchi

Norihiko Ushizawa

Naoto Uchida

Takanao Suzuki

Teruaki Katsube

Norio Daikuhara

Teruhisa Kanbara

Tadashi Sotomura

Kenichi Takeyama

Kaoru Kitakizaki

Hiroshi Uemachi

Osamu Hatozaki

Yoshihito Watanabe

Takayuki Noguchi

Yoshiko Sato

Masanori Haba

Tetsu Tatsuma

Toshiyuki Shono

Yuki Fujimoto

Tsutomu Murakami

Yoshiyuki Iwase

Kouichi Nishijima

Satoru Kasai

Katsuhiko Naoi

Keizaburo Miki

Yukio Ohnuki

Eishun Tsuchida

Hiroaki Matsuda

A gel-type polymer electrolyte, wherein said polymer comprises (A) an ethylene-unsaturated carboxylic acid copolymer or a derivative thereof and (B) a polyalkylene oxide having a hydroxyl group at one terminal thereof or a derivative thereof, which are bonded together by an ester bond. The gel-type polymer electrolyte has a high ionic conductivity, and makes it possible to provides a cell which has excellent charge/discharge characteristics at low temperatures as well as at high temperatures.

Gel-type polymer electrolyte and use thereof

A polymer electrolyte providing lithium secondary batteries in which growth of lithium dendrites is suppressed and batteries exhibiting excellent discharge characteristics in low to high temperature, comprising a polymer gel holding a nonaqueous solvent containing an electrolyte, wherein the polymer gel comprises (I) a unit derived from at least one monomer having one copolymerizable vinyl group and (II) a unit derived from at least one compound selected from the group consisting of (II-a) a compound having two acryloyl groups and a (poly)oxyethylene group, (II-b) a compound having one acryloyl group and a (poly)oxyethylene group, and (II-c) a glycidyl ether compound, particularly the polymer gel comprises monomer (I), compound (II-a), and a copolymerizable plasticizing compound.

Polymer electrolyte

A QCM sensor including a sensor device, the sensor device having a crystal substrate, on both of front and rear surfaces of which a pair of electrodes are disposed so as to oppose with each other and the QCM sensor detecting and quantitatively analyzing components of a sample from either a variation in a fundamental resonant frequency or a variation in an impedance when a surface of one of the pair of electrodes is immersed into either a sample gas or a sample solution. The sensor device is arranged in a multi-channel structure such that four mutually opposing electrodes ( A through A, B through B) are disposed on both front and rear surfaces of the crystal substrate each electrode being arranged to enable a fixation of a receptor which is different for each component of a sample to be detected and quantitatively analyzed, whereby the QCM sensor detects and quantitatively analyzes once the components of one sample different for different electrodes.

QCM sensor

A polymer electrolyte for lithium secondary batteries in which growth of lithium dendrites is suppressed is disclosed, batteries exhibiting excellent discharge characteristics in low to high temperature, comprising a polymer gel holding a nonaqueous solvent containing an electrolyte, wherein the polymer gel comprises (I) a unit derived from at least one monomer having one copolymerizable vinyl group and (II) a unit derived from at least one compound selected from the group consisting of (II-a) a compound having two acryloyl groups and a (poly)oxyethylene group, (II-b) a compound having one acryloyl group and a (poly)oxyethylene group, and (II-c) a glycidyl ether compound, particularly the polymer gel comprises monomer (I), compound (II-a), and a copolymerizable plasticizing compound are disclosed.

Methods for detecting target DNA's in a sample on the basis of oscillation frequency using nucleic acid sequences immobilized to the surface of an electrode of an elastic wave element, and DNA sensors for conducting the methods are described. These methods provide for highly sensitive detection of target DNA's in a sample.

Method for detecting target sequences by oscillation frequency

The present invention provides an electrode material comprising a combination of a compound having a disulfide group and a conductive polymer, or a conductive polymer having a disulfide group, wherein an S-S bond of the disulfide group is cleaved by the electrolytic reduction to form a sulfur-metal ion bond or a sulfur-proton bond, and the sulfur-metal ion bond or the sulfur-proton bond re-forms an S-S bond by the electrolytic oxidation. The present invention also provides a lithium rechargeable battery comprising a cathode, a solid electrolyte, and an anode, wherein the cathode is made of a composition containing as its main components lithium thiolate having a sulfur-lithium ion bond capable of forming a disulfide bond by the electrolytic oxidation and a .pi. electron conjugated conductive polymer; or a composition containing as its main component a .pi. electron conjugated conductive polymer having a sulfur-lithium ion bond capable of forming a disulfide bond by electrolytic oxidation; the solid electrolyte is a composition containing a salt containing lithium, or a polymer containing the salt; and the anode is made of a composition containing as its main components aluminium or an alloy containing aluminium, and carbon.

Reversible electrode material

A reference electrode for generating a reference potential on an ion sensor is disclosed. The reference electrode has a lamination film covering a surface of an electrically conductive substrate and formed by alternately laminating silver halide thin films and hydrophobic resin thin films.

Reference electrode, ion sensor and method of manufacturing the same

An enzyme sensor is disclosed, which has a two-layer fixed film structure consisting of a reduction function layer including an electron movement medium and di-valent iron ions and an enzyme-fixed layer covering said reduction function layer, and in which hydrogen peroxide generated through decomposition of glucose or the like in the enzyme-fixed layer is reduced by electron movement medium and di-valent iron ions in the reduction function layer. Thus, the construction of enzyme sensor is simplified, measurement is extremely facilitated, and the measurement time is reduced. As a different principle of enzyme sensor, an electrically conductive substrate of conductive carbon or the like is covered with an oxygen-reducing catalytic function layer and enzyme layer. Thus, there is no problem of contamination of enzyme sensor, and it is possible to readily manufacture and miniaturize enzyme sensors.

Enzyme sensor and method of manufacturing the same

A lithium ion sensor includes a FET, a redox layer having a redox function covering a gate isolating membrance of the FET, and a lithium ion-sensitive layer selectively sensing lithium ion covering the redox layer.

Lithium ion sensor

Film-coated sensor

Ion sensor

An ion sensor of the type wherein a specific type of ion in an aqueous solution is measured by potential response. The sensor includes a conductor base, and a reversible redox polymer film formed directly on a surface of said conductor base. An ion carrier film is formed directly on a surface of said redox polymer film. The carrier film contains an ion carrier substance for allowing the specific type of ions to permeate from the aqueous solution to said polymer film.

The surface of an electrically conductive substrate (1) is provided with a redox layer (5) by an electrolytic polymerization process, and the surface of the resulting member is further provided with an ion carrier membrane (6) which includes polyvinyl chloride, a plasticizer and an ion carrier, thereby forming an ion sensor. Used as the plasticizer is one selected from among phthalate plasticizers, maleate plasticizers, adipate plasticizers, carboxylate plasticizers and polycaprolactone plasticizers, or one selected from among plasticizers comprising modified ethylene-- vinyl acetate copolymer. The ion sensor obtained has low solubility in the plasticizer of the redox layer and therefore is highly stable. Since the ion sensor has little toxicity, it can be used in vivo.

Ion carrier membrane, and ion sensor having same

FET electrode with carbon gate

Growing community of inventors

Fuchu, Japan

Noboru Oyama