Osaka, Japan
Osaka, Japan

Kansai University , or Kandai , is a private non-sectarian and coeducational university located in Suita, Osaka, Japan and in two other locations: Osaka City; and Takatsuki, Osaka. Wikipedia.


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An object of the present invention is to provide copper nanoparticles that suppress the oxidation of copper, have an average particle diameter of 10 nm or less and therefore undergo a remarkable reduction in the melting point, are highly dispersible, can be sintered at a low temperature, allow the removal of the protective layer during low-temperature sintering at 150 C. or less, and can be suitably used as a conductive copper nanoink material; and to also provide a method for preserving copper nanoparticles, whereby the copper nanoparticles can be stably preserved at room temperature for a long period of time, and can be transported. The present invention provides copper nanoparticles each having a central portion comprising a copper single crystal, and a protective layer surrounding the central portion;


Patent
Sharp Corporation and Kansai University | Date: 2015-06-05

A humidity controlling apparatus comprises: a moisture absorbent (1) made of a macromolecular gelated moisture absorbing material which takes a first state being capable of absorbing moisture and a second state releasing in a liquid state the moisture absorbed in the first state, and which has a nature to change from the first state to the second state when a definite level of temperature or higher is attained, and return to the first state when the definite level of temperature or higher is no longer attained; and an energy converting particle (2) which is disposed so as to be buried inside the moisture absorbent and has a nature to generate heat when it is exposed to an external stimulus factor which is at least one of light, electric waves and a high frequency magnetic field.


Patent
Kansai University and A Gas Inc. | Date: 2016-05-10

A polymer compound including a unit structure represented by the general formula (1): wherein m_(1 )and m_(2 )each equal 1 to 8, n_(1 )and n_(2 )each equal 0 to 7, m_(1)+n_(1 )and m_(2)+n_(2 )each equal 4 to 8, y represents 0 to 2, R^(1 )represents a hydroxy group; a substituted or unsubstituted straight, branched or cyclic alkyl group; a substituted or unsubstituted aryl group, or a halogen atom, R^(3 )represents a hydrogen atom, a substituted or unsubstituted straight, branched or cyclic alkyl group, or a substituted or unsubstituted aryl group, R^(2 )represents any structure represented by general formula (2) in the specification, at least one R^(2 )has an acid-dissociable site, R^(5 )represents a hydroxy group, OR^(2)O* or OR^(2)OR^(55), and R^(6 )represents a hydroxy group or OR^(2)O*.


Patent
TEIJIN Ltd and Kansai University | Date: 2015-04-07

A transducer in the form of cloth having high flexibility obtained by manufacturing a conventional woven or knitted fabric structure using general-purpose fiber materials. The transducer includes piezoelectric units, each including two conductive fibers and one piezoelectric fiber arranged substantially on the same plane in the order of the conductive fiber, the piezoelectric fiber and the conductive fiber, and outputs and inputs an electric signal.


Patent
Kansai University and A Gas Inc. | Date: 2016-05-10

A polymer compound including a unit structure represented by the following general formula (1): wherein m_(1 )equals 1 to 8, n_(1 )equals 0 to 7, m_(1)+n_(1 )equals 4 to 8, m_(2 )equals 1 to 8, n_(2 )equals 0 to 7, m_(2)+n_(2 )equals 4 to 8, m_(1 )equals m_(2), y represents 0 to 2, R^(1 )represents a hydroxy group, a substituted or unsubstituted straight, branched or cyclic alkyl group, a substituted or unsubstituted aryl group, or a halogen atom, R^(3 )represents a hydrogen atom, a substituted or unsubstituted straight, branched or cyclic alkyl group, or a substituted or unsubstituted aryl group, each R^(2 )independently represents any structure represented by general formula (2) in the specification, at least one R^(2 )has an acid-dissociable site, and R^(5 )represents a hydroxy group or OR^(2)O*.


Patent
Teijin Ltd and Kansai University | Date: 2017-02-22

A transducer in the form of cloth having high flexibility obtained by manufacturing a conventional woven or knitted fabric structure using general-purpose fiber materials. The transducer includes piezoelectric units, each including two conductive fibers and one piezoelectric fiber arranged substantially on the same plane in the order of the conductive fiber, the piezoelectric fiber and the conductive fiber, and outputs and inputs an electric signal.


Patent
National Cerebral And Cardiovascular Center and Kansai University | Date: 2017-04-19

The present invention provides a stent that can obtain sufficient strength while an inner side of the stent is easily endothelialized and moreover, can prevent occlusion of a branch blood vessel. Specifically, a stent body capable of diameter expansion is provided. A tubular film 3 is held by the stent body. In the tubular film 3, a plurality of communication holes 4 communicating between an inside and an outside are formed. Band-shaped portions 7 and 8 are formed between the communication holes 4 adjacent to each other. A wide-width portion and a narrow portion are not generated in the band-shaped portions 7 and 8. Strength of a part of the band-shaped portions 7 and 8 is not lowered. Generation of the wide-width portion in the band-shaped portions 7 and 8 is prevented.


Patent
Kansai University and Kawasumi Laboratories Inc. | Date: 2016-03-23

The present invention relates to an adhesion-preventing material comprising the following (1) and (2): (1) an A-B-A type or B-A-B type triblock copolymer that has an A segment containing poly(-caprolactone-co-glycolic acid) and a B segment containing polyethylene glycol; and (2) polyethylene glycol and/or methoxy-polyethylene glycol. The present invention provides an adhesion-preventing material that undergoes a sol-gel transition in response to temperature, that can be prepared before use more easily than before, that can be easily applied to invasion sites having a complicated shape or structure, that can exhibit an adhesion-preventing effect stably for a desired period of time, and that has excellent handling properties in laparoscopic surgery.


Matsushima K.,Kansai University
Optics Express | Year: 2010

A novel method is proposed for simulating free-space propagation from an input source field to a destination sampling window laterally shifted from that in the source field. This off-axis type numerical propagation is realized using the shifted-Fresnel method (Shift-FR) and is very useful for calculating non-paraxial and large-scale fields. However, the Shift-FR is prone to a serious problem, in that it causes strong aliasing errors in short distance propagation. The proposed method, based on the angular spectrum method, resolves this problem. Numerical examples as well as the formulation are presented. © 2010 Optical Society of America.


This paper summarizes recent advances in α-alkylation reactions based on hydrogen borrowing methodologies using alcohol as an alkylating agent. This review provides a summary of recent progress toward the α-alkylation of carbonyl substrates, as well as relatively unactivated substrates bearing fewer acidic α-hydrogens, such as acetonitriles, acetamides, esters, methylpyrimidines, and methylquinolines. A summary of recent improvements in α-methylation strategies based on hydrogen borrowing methodologies has also been provided. Particular emphasis has been placed on highly practical and green chemistry approaches involving modified catalytic systems, including metal-supported heterogeneous catalysts and nanoparticle-based catalysts, as well as reactions conducted in the absence of a transition-metal catalyst. A review of recent achievements in methylation strategies using methanol as a methyl source, and their application to the α-methylation of ketones using transition-metal catalyzed hydrogen borrowing methodology, has also been documented. © 2014 American Chemical Society.

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