Patent application number | Description | Published |
20080199524 | Eyedrops containing particulate agar - It is intended to prepare a composition which contains polysaccharide at a high concentration and yet remains in the state of a liquid having low viscosity to thereby provide drugs, eyedrops, foods, cosmetics, toiletry products having a novel texture or function. The composition in the state of a liquid having low viscosity is obtained by heating polysaccharide at a high concentration in a water-containing liquid and then cooling under applying a shear force, which enables the provision of the above-described drugs. The composition is usable as an aqueous drug vehicle which is free from gelling due to temperature changes during storage and easily applied without pouring and/or streaming down. Eyedrops containing agar have an effect of enhancing ocular drug penetration. Eyedrops containing particulate agar maintain a low viscosity and, achieve easy instillation and impart a favorable feel in instillation. | 08-21-2008 |
20100317615 | Method of enhancing ocular penetration of a drug in an eyedrop - A method of enhancing ocular penetration of a drug in an eyedrop by administering to an eye, an eyedrop containing, particulate agar having a weight-average molecular weight of from 5,000 to 1,200,000, the particulate agar being obtained by dissolving agar into an aqueous solution by heating and then cooling the resultant mixture to avoid gelling, while applying a stress by vibration, shearing, stirring, compression or pulverizing, wherein the particulate agar is in an amount of 0.1 to 10 wt %. | 12-16-2010 |
Patent application number | Description | Published |
20120299458 | SPARK PLUG FOR INTERNAL-COMBUSTION ENGINES - A spark plug for internal-combustion engines includes a housing, an insulator, a center electrode, and an earth electrode. A gas guiding sections equipped with slopes that slope inwardly as they approach toward a tip side from a circumference surface of the housing and guide surfaces that are disposed on both sides in a circumferential direction of the slopes are formed in a tip part of the housing. The gas guiding sections are formed in the circumferential direction within a 90-degree range measured relative to the center of the earth joint section, which is a junction of the housing and the earth electrode, in the circumferential direction. When the spark plug is mounted to the engine, it is constituted so that the gas guiding sections are projected into a combustion chamber. | 11-29-2012 |
20130015755 | SPARK PLUG DESIGNED TO ENSURE DESIRED DEGREE OF IGNITABILITY OF FUELAANM INOHARA; TakayukiAACI Okazaki-shiAACO JPAAGP INOHARA; Takayuki Okazaki-shi JPAANM OKABE; ShinichiAACI Aichi-kenAACO JPAAGP OKABE; Shinichi Aichi-ken JPAANM AOCHI; TakanobuAACI Nishio-shiAACO JPAAGP AOCHI; Takanobu Nishio-shi JPAANM IWAMI; AtsushiAACI Kariya-shiAACO JPAAGP IWAMI; Atsushi Kariya-shi JPAANM SHIBATA; MasamichiAACI Toyota-shiAACO JPAAGP SHIBATA; Masamichi Toyota-shi JP - A spark plug for an internal combustion engine is provided which is equipped with a tip protrusion disposed on a top of a hollow cylindrical housing of the spark plug. The spark plug also includes a center electrode retained in a porcelain insulator disposed inside the housing and a ground electrode is joined to the housing so as to form a spark gap. The tip protrusion serves to direct a flow of gas to be ignited by a spark produced in the spark gap and is shaped to have a radial width extending in a radial direction of the housing and a circumferential width extending in a circumferential direction of the cylindrical housing. The radial width is greater than the circumferential width. This enhances the efficiency in guiding the flow of gas toward the spark gap. | 01-17-2013 |
20140159563 | SPARK PLUG FOR INTERNAL COMBUSTION ENGINES - A spark plug for internal combustion engines is provided, where the spark plug includes a cylindrical housing, a cylindrical insulation porcelain part, a center electrode, and a ground electrode. The insulation porcelain is housed in the housing and the center electrode is held inside the insulation porcelain. The ground electrode protrudes from a top end portion of the housing. A spark discharge gap is left between the ground and center electrodes. Further, first to third projections are formed on the top end portion. The first projection is opposed to the ground electrode with the center electrode therebetween. The second projection is closer to the ground electrode than to the first projection. The third projection is closer to the first projection than to the ground electrode. | 06-12-2014 |
Patent application number | Description | Published |
20090280328 | THERMALLY EXPANDED MICROSPHERES AND A PROCESS FOR PRODUCING THE SAME - The present invention provides heat-expanded microspheres having high packing efficiency, and a production method thereof. The heat-expanded microspheres are produced by expanding heat-expandable microspheres, which comprise shell of thermoplastic resin and a blowing agent encapsulated therein having a boiling point not higher than the softening point of the thermoplastic resin and have an average particle size from 1 to 100 micrometer, at a temperature not lower than their expansion initiating temperature, and the heat-expanded microspheres result in a void fraction not higher than 0.70. | 11-12-2009 |
20100180995 | HEAT-EXPANDABLE MICROSPHERES AND HOLLOW FINE PARTICLES AND METHOD FOR PRODUCING THE SAME AS WELL AS TIRE/RIM ASSEMBLY - In heat-expandable microspheres as a starting material for hollow fine particles, which have excellent performances required for giving not only a durability in steady running region but also a durability in high-speed running region to a tire-rim assembly, and each consisting of an outer shell made of a thermoplastic resin obtained by polymerizing a monomer component in the presence of a polymerization initiator, and a foaming agent encapsulated in the outer shell and having a boiling point not higher than a softening point of the thermoplastic resin, the polymerization initiator comprises a peroxydicarbonate as an essential component, and the foaming agent comprises a fluorine-containing compound having an ether structure and a carbon number of 2-10 and containing no chlorine atom and bromine atom. | 07-22-2010 |
20100288406 | PNEUMATIC TIRE - Provided is a pneumatic tire whose frictional force on ice is improved by satisfactorily forming resin-encapsulated cells from heat-expandable microcapsules, even when a tread rubber contains silica. The tire is characterized in that: the tread rubber is made of a rubber composition containing 100 parts by weight of a diene rubber, 30 to 100 parts by weight of a reinforcing filler including at least 10 parts by weight of silica, and 1 to 20 parts by weight of microcapsules each encapsulating a heat-expandable substance; a sulfur-containing silane coupling agent is mixed in the rubber composition in an amount of 3 to 15 wt. % based on the weight of the silica; a shell material of each microcapsule is made of a thermoplastic resin which essentially contains a nitrile monomer (I); a vapor pressure of the heat-expandable substance is set at 1.4 to 3.0 MPa at 150° C.; an average particle diameter of the microcapsules is set at 20 to 30 μm before vulcanization of the rubber composition; an average particle diameter of the microcapsules expanded due to the vulcanization is set at 40 to 80 μm; and thus, a proportion of an area occupied by the cells in the tread rubber is set at 5 to 30%. | 11-18-2010 |
20120080131 | HEAT-EXPANDABLE MICROSPHERES AND HOLLOW FINE PARTICLES AND METHOD FOR PRODUCING THE SAME AS WELL AS TIRE/RIM ASSEMBLY - In heat-expandable microspheres as a starting material for hollow fine particles, which have excellent performances required for giving not only a durability in steady running region but also a durability in high-speed running region to a tire-rim assembly, and each consisting of an outer shell made of a thermoplastic resin obtained by polymerizing a monomer component in the presence of a polymerization initiator, and a foaming agent encapsulated in the outer shell and having a boiling point not higher than a softening point of the thermoplastic resin, the polymerization initiator comprises a peroxydicarbonate as an essential component, and the foaming agent comprises a fluorine-containing compound having an ether structure and a carbon number of 2-10 and containing no chlorine atom and bromine atom. | 04-05-2012 |
20120121907 | THERMALLY EXPANDED MICROSPHERES AND A PROCESS FOR PRODUCING THE SAME - The present invention provides heat-expanded microspheres having high packing efficiency, and a production method thereof. The heat-expanded microspheres are produced by expanding heat-expandable microspheres, which comprise shell of thermoplastic resin and a blowing agent encapsulated therein having a boiling point not higher than the softening point of the thermoplastic resin and have an average particle size from 1 to 100 micrometer, at a temperature not lower than their expansion initiating temperature, and the heat-expanded microspheres result in a void fraction not higher than 0.70. | 05-17-2012 |
20130030065 | HEAT-EXPANDABLE MICROSPHERES AND A PROCESS FOR PRODUCING THE SAME - A method that produces heat-expandable microspheres includes the use of a shell of thermoplastic resin and a non-fluorine blowing agent encapsulated therein having a boiling point not higher than the softening point of the thermoplastic resin. The method includes a step of dispersing an oily mixture containing a polymerizable component, the blowing agent, and a polymerization initiator containing a peroxydicarbonate in an aqueous dispersing medium to polymerize the polymerizable component contained in the oily mixture. The resultant heat-expandable microspheres have a shell which is less apt to become thinner than its theoretical value, contain minimum amount of resin particle inside their shell, and have excellent heat-expanding performance. | 01-31-2013 |
Patent application number | Description | Published |
20090149559 | HEAT-EXPANDABLE MICROSPHERES, METHOD FOR PRODUCING THE SAME, AND APPLICATION THEREOF - Heat-expandable microspheres include a shell of thermoplastic resin and a blowing agent encapsulated therein having a boiling point not higher than the softening point of the thermoplastic resin, have a maximum expanding ratio not lower than 50 times, and are thermally expanded into hollow particulates having a repeated-compression durability not lower than 75 percent. The method of producing the heat-expandable microspheres includes the steps of dispersing an oily mixture containing a polymerizable component and the blowing agent in an aqueous dispersing medium containing a specific water-soluble compound and polymerizing the polymerizable component contained in the oily mixture. | 06-11-2009 |
20090176098 | HEAT-EXPANDABLE MICROSPHERES AND A PROCESS FOR PRODUCING THE SAME - A method that heat-expandable microspheres includes the use of a shell of thermoplastic resin and a non-fluorine blowing agent encapsulated therein having a boiling point not higher than the softening point of the thermoplastic resin. The method includes a step of dispersing an oily mixture containing a polymerizable component, the blowing agent, and a polymerization initiator containing a peroxydicarbonate in an aqueous dispersing medium to polymerize the polymerizable component contained in the oily mixture. The resultant heat-expandable microspheres have a shell which is less apt to become thinner than its theoretical value, contain minimum amount of resin particle inside their shell, and have excellent heat-expanding performance. | 07-09-2009 |
20100204349 | HEAT-EXPANDABLE MICROSPHERES, PROCESS FOR PRODUCING THE SAME, AND APPLICATION THEREOF - Heat-expandable microspheres include a shell of thermoplastic resin and core material encapsulated in the shell. The core material include a blowing agent having a boiling point not higher than the softening point of the thermoplastic resin and a gas migration inhibitor having a boiling point higher than the softening point of the thermoplastic resin. The ratio of the gas migration inhibitor to the core material is at least 1 weight percent and below 30 weight percent. The average particle size of the heat-expandable microspheres ranges from 1 to 100 micrometers. | 08-12-2010 |