Yamagata University is a national university located in the Japanese cities of Yamagata, Yonezawa, and Tsuruoka in Yamagata Prefecture.The university was established in 1949, but its origin can be traced back to the Yamagata Normal School , a public teacher-training institution, founded in 1878 in Yamagata City. The university also has other roots: the Yonezawa Higher Technical School founded in 1910 in Yonezawa City, the Yamagata Higher School founded in 1920 in Yamagata City, the Yamagata Youth Normal School founded in 1922 in Yamagata City, and the Yamagata Prefectural Agricultural College founded in 1947 in Tsuruoka City.Yamagata University is the second-largest university in the Tohoku Region. The university has six faculties and about 10,000 students in four campuses. It also has an additional subcampus in which University K-9 schools are administered. Wikipedia.
Toyoda Gosei and Yamagata University | Date: 2015-03-23
A cell culture device comprises a first inner cylinder formed in a tubular shape. a cell culture membrane placed to cover over an entire one end of the first inner cylinder and configured to be folded down toward an outer surface of the first inner cylinder along an outer circumference at the one end of the first inner cylinder, and an outer cylinder formed in a tubular shape, configured to place the first inner cylinder inside thereof such that a height direction of the outer cylinder is identical with a height direction of the first inner cylinder, and provided with a first slit in an area overlapping with at least the one end of the first inner cylinder to be extended in the height direction, wherein the cell culture membrane is held between an inner wall surface of the outer cylinder and the outer surface of the first inner cylinder.
LG Corp and Yamagata University | Date: 2016-12-12
The present invention provides a liquid crystal horizontal orientation agent, a horizontal orientation type liquid crystal composition, a horizontal orientation type LCD device and a method of fabricating the horizontal orientation type LCD device. In one embodiment, the liquid crystal molecule is horizontally oriented by the liquid crystal horizontal orientation agent without the rubbed orientation layer.
Toyoda Gosei and Yamagata University | Date: 2016-07-29
A cell culture device comprises a cell culture membrane and a substrate fixed to the cell culture membrane. The cell culture membrane is made from a thermosetting resin and has a plurality of pores that are open to at least one surface including a surface on a side that is in contact with the substrate. The substrate is made from a thermoplastic resin. In a contact region between the cell culture membrane and the substrate, part of the substrate is extended to form bulges in the pores of the cell culture membrane that are open in the contact region. This configuration suppresses reduction of the strength of the cell culture membrane and reduction of the flatness of the cell culture membrane (membrane accuracy) in the cell culture device in which the cell culture membrane and the substrate are fixed to each other.
Yamagata University and NOF Corporation | Date: 2017-02-01
The present invention provides a polymer compound that can be expected to inhibit activation of a coagulation system, a complement system or a platelet system when brought into contact with in vivo tissue and/or blood since the compound is capable of containing intermediate water, and a composition and a device using the same. This problem is solved by a polymer compound containing a repeating unit represented by general formula (A), and used in contact with in vivo tissue and/or blood, in which in a process in which the polymer compound caused to contain water in a prescribed water content is cooled to -100C and thereafter heated at a temperature rise rate of 5.0C/min, a temperature region where exothermicity occurs is present in the range of -80C or more and -25C or less, and a temperature region where endothermicity occurs is present in the range of -25C or more and lower than 0C:
Sumitomo Rubber Industries Ltd. and Yamagata University | Date: 2016-04-19
The invention relates to an isoprene oligomer that contains a trans structural moiety and a cis structural moiety, which can be represented by the following formula (1), wherein at least 1 atom or group in the trans structural moiety is replaced by another atom or group. The invention also relates to a polyisoprene, which is biosynthesized using the isoprene oligomer and isopentenyl diphosphate. Further, this invention provides a rubber composition comprising the isoprene oligomer and/or the polyisoprene, and a pneumatic tire, including tire components (e.g., treads and sidewalls) formed from the rubber composition. wherein n represents an integer from 1 to 10; m represents an integer from 1 to 30; and Y represents a hydroxy group, a formyl group, a carboxy group, an ester group, a carbonyl group, or a group represented by the following formula (2):
Namiki Seimitsu Houseki Kabushikikaisha and Yamagata University | Date: 2016-12-07
A cell membrane observation and analysis device includes at least: a microscope; and a substrate which has a plurality of holes, in which a cell membrane is placed on each hole of the substrate to be placed on the substrate, the cell membrane is immersed into a buffer solution while the cell membrane is suctioned through the hole, and the buffer solution is sealed, thereby observing and analyzing the cell membrane. Using the above-mentioned device, a substrate is prepared; a cell membrane is dispersed in a buffer solution, thereby preparing a suspension; the suspension is dripped onto a face of the substrate; the cell membrane is sucked through each hole to be placed on each hole; the cell membrane is immersed into a second buffer solution while the cell membrane is sucked; the second buffer solution is sealed; and the cell membrane is observed and analyzed with a microscope.
Yokoyama D.,Yamagata University
Journal of Materials Chemistry | Year: 2011
In research on small-molecule organic light-emitting diodes (OLEDs), the molecular orientation in vacuum-deposited amorphous films has been disregarded for around 20 years, and its effects on device performance have not been sufficiently discussed at the microscopic level. Only recently have the intermolecular interaction and subsequent horizontal molecular orientation in OLEDs been investigated and reported. In this article, an overview of the recent studies on molecular orientation in OLEDs is presented. The general properties of molecular orientation of OLED materials are shown, and its significant effects on the electrical and optical properties of devices are discussed to understand device physics and improve the future performance and reliability of OLEDs. © 2011 The Royal Society of Chemistry.
Yamagata University | Date: 2016-09-28
A method for producing silver nanoparticles according to the present invention includes the steps of mixing an amine mixture and a silver compound to yield a complex compound; and heating and decomposing the complex compound to form silver nanoparticles. The amine mixture contains: a primary amine (A) having 8 or more carbon atoms and a melting point of 20C or lower; a diamine (B) having a primary amino group, a tertiary amino group, 4 or more carbon atoms, and a melting point of 20C or lower; and a cis-unsaturated primary amine (C) having 12 or more carbon atoms and a melting point of 30C or lower.
Yamagata University and Piolax Medical Devices Inc. | Date: 2016-02-24
Provided are a stent to be placed in the bile duct and a process for producing the stent, the stent hollow being less apt to be blocked even when the stent is placed in the bile duct for a long period. This stent (10) to be placed in the bile duct is either a stent (10) that comprises a stent base (20) constituted of a cylindrical metal mesh tube and a covering member (30) with which the outer periphery and/or inner periphery of the stent base (20) has been covered or a stent (10) constituted of a cylindrical resin tube (20), the inner peripheral surface of the stent having been coated with a resin layer (40) with resistance to sludge formation that comprises a polymer obtained by polymerizing 2-methoxyethyl acrylate. This stent to be placed in the bile duct is produced by applying a coating fluid that contains 0.1-0.5 mass% polymer obtained by polymerizing 2-methoxyethyl acrylate, to the inner peripheral surface of a stent, thereby coating the inner peripheral surface of the stent with a resin layer having resistance to sludge formation and comprising the polymer.
Yamagata University | Date: 2016-09-23
Objects of the invention are to provide a method in which coated metal fine particles are smoothly manufactured when the coated metal fine particles are manufactured using a metal amine complex decomposition method, and, particularly, to provide coated metal fine particles that can be smoothly sintered even at a low temperature. The manufacturing method of coated metal fine particles includes a first step of mixing an amine liquid mixture of an alylamine having 6 or more carbon atoms and an alkylamine having 5 or less carbon atoms with a metal compound including one or more metal atoms, thereby generating a complex compound including the metal compound and amines; and a second step of heating and decomposing the complex compound, thereby generating coated metal fine particles.