Patent application number | Description | Published |
20090050481 | GAS SENSOR WITH INCREASED DURABILITY AND RELIABILITY - A gas sensor is disclosed including a gas-concentration detecting element, a casing accommodating the gas-concentration detecting element, a lead wire delivering a detected voltage potential to an outside, an insulator holding the lead wire in electrical relationship with respect to the housing, a columnar elastic sealing member, air holes formed in the casing for admitting atmospheric air to an inside thereof, and a water repellent filter. The water repellent filter, formed in a cylindrical shape, is disposed between the casing and the insulator, and a cylindrical elastic member is disposed in at least one of an area between the water repellent filter and the casing and another area between the water repellent filter and the insulator. With the casing caulked, the water repellent filter and the cylindrical elastic member are fixed in place. | 02-26-2009 |
20090056660 | GLOW PLUG WITH COMBUSTION PRESSURE SENSOR - A glow plug with combustion pressure sensor is disclosed having a cover and a housing with which a piezoelectric element is hermetically accommodated. A lead wire having flexibility is employed to supply electric power to a heating member. The lead wire, fixedly connected to the heating member, extends through an insertion bore of the cover and is hermetically bonded to an inner circumferential wall of the insertion bore. When the heating member is axially displaced upon receipt of a combustion pressure, the lead wire flexes to absorb the resulting displacement, causing a joint portion between the cover and the lead wire to have no drag against the displacement. This allows the piezoelectric element to detect the combustion pressure with high precision. | 03-05-2009 |
Patent application number | Description | Published |
20090118543 | METHOD FOR PRODUCING TRIFLUOROMETHANESULFONIC ANHYDRIDE - This method for producing trifluoromethanesulfonic anhydride reacting trifluoromethanesulfonic acid with phosphorus pentoxide to produce trifluoromethanesulfonic anhydride, wherein hardening of the reaction solution due to polyphosphoric acid, which is produced as a byproduct, is prevented by using an excess amount of trifluoromethanesulfonic acid with respect to the phosphorus pentoxide. | 05-07-2009 |
20090143613 | POTASSIUM PERFLUOROALKANESULFONATE AND METHOD FOR PRODUCING THE SAME - This method for producing a potassium perfluoroalkanesulfonate includes an electrochemical fluorination step in which an alkanesulfonyl halide compound is subjected to electrochemical fluorination in anhydrous hydrogen fluoride, thereby to generate a production gas containing perfluoroalkanesulfonyl fluoride as the main component. In addition, for example, the methods may include a gas absorption step in which the production gas is reacted with an aqueous solution of potassium hydroxide, thereby to generate a gas absorbed solution containing potassium perfluoroalkanesulfonate, a purification step in which impurities such as potassium fluoride, potassium hydroxide, and potassium sulfate, are removed, and a concentration and collection step in which the aqueous solution from which the impurities are removed is concentrated and dried. In the electrochemical fluorination, for example, it is possible that the proton concentration in the reaction solution is maintained in the range of 150 to 1,500 ppm to suppress the formation of byproducts. | 06-04-2009 |
20100305345 | PROCESS FOR PRODUCING FLUORINE-CONTAINING COMPOUNDS - This process for producing fluorine-containing compounds includes liquid-phase fluorination by introducing a raw material compound and fluorine gas into a solvent to replace hydrogen atoms in the raw material compound with fluorine atoms. More specifically, the process for producing fluorine-containing compounds includes (1) promoting fluorination by dissolving the raw material compound in anhydrous hydrofluoric acid and introducing into a liquid-phase fluorination solvent, or (2) promoting fluorination by dissolving the raw material compound in a perfluoro compound having a plurality of polar groups in a molecule thereof and introducing into a liquid-phase fluorination solvent. According to these processes, a fluorination reaction can be carried out at high yield and without containing hardly any isomers while using a hydrocarbon compound as is for the raw material. | 12-02-2010 |
20110210295 | Conductive silica sol composition, and molded article produced using the same - The present invention provides a conductive silica sol composition containing at least a silica sol composition, and at least one selected from perfluoroalkyl sulfonates perfluoroalkyl sulfone imide salts, and bis(fluorosulfonyl) imide salts. | 09-01-2011 |
20110269990 | PROCESS FOR PRODUCING PERFLUOROALKYLSULFONIC ACID SALT - In this method for producing a perfluoroalkylsulfonic acid salt, there is provided a method for producing a perfluoroalkylsulfonic acid salt with a low fluorine content, which is a simple method to achieve a high yield, | 11-03-2011 |
20120009113 | METHOD FOR PRODUCING BIS(FLUOROSULFONYL)IMIDE - According to the method for producing bis(fluorosulfonyl)imide of the present invention, first, an unreacted mixed liquid is prepared by mixing a first fluorosulfonic acid with urea in a condition free of a chemical reaction between the first fluorosulfonic acid and urea. Then, the unreacted mixed liquid is dripped into a heated second fluorosulfonic acid or a heated bis(fluorosulfonyl)imide, allowing a chemical reaction between fluorosulfonic acid and urea to proceed. In this method, generation of carbon dioxide gas and heat during the chemical reaction can be controlled. | 01-12-2012 |
20120014859 | METHOD FOR PRODUCING BIS(FLUOROSULFONYL)IMIDE SALT, METHOD FOR PRODUCING FLUOROSULFATE, AND METHOD FOR PRODUCING BIS(FLUOROSULFONYL)IMIDE ONIUM SALT - According to the method for producing bis(fluorosulfonyl)imide salt of the present invention, the method for producing fluorosulfate, and the method for producing bis(fluorosulfonyl)imide onium salt, first, an aqueous solution is prepared by dissolving a mixed liquid containing bis(fluorosulfonyl)imide and fluorosulfonic acid in water. Then, the aqueous solution is neutralized with an alkaline compound, producing bis(fluorosulfonyl)imide salt and fluorosulfate. In the methods, bis(fluorosulfonyl)imide salt, fluorosulfate, and bis(fluorosulfonyl)imide onium salt can be obtained safely and easily. | 01-19-2012 |
20120022269 | FLUORINE-CONTAINING N-ALKYLSULFONYLIMIDE COMPOUND, MANUFACTURING METHOD THEREFOR, AND METHOD OF MANUFACTURING AN IONIC COMPOUND - According to the method for producing fluorine-containing N-alkylsulfonylimide compound, the fluorine-containing N-alkylsulfonylimide compound can be produced safely with a high recovery rate by alkylating fluorine-containing sulfonylimide acid or fluorine-containing sulfonylimide acid salt with dialkylsulfuric acid or dialkylcarbonic acid. | 01-26-2012 |
20120184763 | METHOD FOR PRODUCING PERFLUOROSULFONIC ACID HAVING ETHER STRUCTURE AND DERIVATIVE THEREOF, AND SURFACTANT CONTAINING FLUORINE-CONTAINING ETHER SULFONIC ACID COMPOUND AND DERIVATIVE THEREOF - In this method, R | 07-19-2012 |
20120193587 | CONDUCTIVE COATING FILM-FORMING AGENT, METHOD FOR PRODUCING THE SAME, AND MOLDED ARTICLE USING THE SAME - This conductive coating film-forming agent contains a coating film-forming component having a polyol structure, and at least one kind of a compound selected from bis(fluorosulfonyl)imide salts represented by (FSO | 08-02-2012 |
20120302787 | PROCESS FOR PRODUCING PERFLUOROBUTANESULFONIC ACID SALT - A process for producing a perfluorobutanesulfonic acid salt (PFBS salt) is provided. By the process, the yield is improved and PFOS salt content is reduced. Electrochemical fluorination is conducted in a reaction solution comprising anhydrous hydrogen fluoride to generate perfluorobutanesulfonyl fluoride, and the fluoride is hydrolyzed to produce a perfluorobutanesulfonic acid salt. The process for producing a perfluorobutanesulfonic acid salt includes: a step in which liquid phase components generated in the electrochemical fluorination cell are withdrawn and a first a perfluorobutanesulfonic acid salt fraction is prepared therefrom; and a step in which gaseous phase components discharged from the electrochemical fluorination cell are collected and a second perfluorobutanesulfonic acid salt fraction is prepared therefrom. The reaction solution in the electrochemical fluorination cell is regulated so as to have a perfluorooctanesulfonyl fluoride content of 500 ppm or lower by withdrawing the liquid phase components from the electrochemical fluorination cell. | 11-29-2012 |
20130066110 | METHOD FOR MANUFACTURING FLUORINE-CONTAINING IMIDE COMPOUND - With this method for manufacturing fluorine-containing imide compounds, a method for manufacturing a fluorine-containing imide compound ((Rf | 03-14-2013 |
20130137899 | PROCESS FOR PRODUCING FLUORINE-CONTAINING SULFONYLIMIDE COMPOUND - In this process for producing a fluorine-containing sulfonylimide compound, a process for producing a fluorine-containing sulfonylimide compound ((Rf | 05-30-2013 |
20140037529 | METHOD FOR PRODUCING BIS(FLUOROSULFONYL)IMIDE SALT, METHOD FOR PRODUCING FLUOROSULFATE, AND METHOD FOR PRODUCING BIS(FLUOROSULFONYL)IMIDE ONIUM SALT - According to the method for producing bis(fluorosulfonyl)imide salt of the present invention, the method for producing fluorosulfate, and the method for producing bis(fluorosulfonyl)imide onium salt, first, an aqueous solution is prepared by dissolving a mixed liquid containing bis(fluorosulfonyl)imide and fluorosulfonic acid in water. Then, the aqueous solution is neutralized with an alkaline compound, producing bis(fluorosulfonyl)imide salt and fluorosulfate. In the methods, bis(fluorosulfonyl)imide salt, fluorosulfate, and bis(fluorosulfonyl)imide onium salt can be obtained safely and easily. | 02-06-2014 |
20140339096 | METHOD FOR PRODUCING PERFLUOROSULFONIC ACID HAVING ETHER STRUCTURE AND DERIVATIVE THEREOF, AND SURFACTANT CONTAINING FLUORINE-CONTAINING ETHER SULFONIC ACID COMPOUND AND DERIVATIVE THEREOF - In this method, R | 11-20-2014 |
Patent application number | Description | Published |
20120237168 | OPTICAL CONNECTOR, OPTICAL FIBER INCORPORATING METHOD, AND ELECTRONIC INFORMATION EQUIPMENT - An optical connector includes a fiber holder with guide holes for guiding optical fibers, a space communicating with the guide holes and to accommodate the optical fibers, and a deformable member that forms at least a part of the fiber holder and causes the space to deform or displace to allow a part or all of the optical fibers to bend in the space. | 09-20-2012 |
20140010500 | OPTICAL CONNECTOR, METHOD FOR ALIGNING MULTI-CORE FIBER WITH BUNDLE STRUCTURE, AND FIBER ARRANGEMENT CONVERSION MEMBER - An optical connector is structured so as to include a fiber connection structure therein. A multi-core fiber is included inside a ferrule, and affixed to the ferrule substrate. One end surface of the multi-core fiber is exposed to an end surface of the ferrule. The other end of the multi-core fiber passes through and is affixed to a capillary. A plurality of optical fiber pass through a capillary that faces the capillary, and are affixed thereto the capillary in the same manner. Seven optical fiber cores of the same diameter are joined in a close-packed arrangement in the fiber connection structure. | 01-09-2014 |
20140010501 | METHOD FOR PRODUCING BUNDLE STRUCTURE, METHOD FOR CONNECTING FIBERS, BUNDLE TERMINAL STRUCTURE, AND FIBER CONNECTION STRUCTURE - A multicore fiber has a plurality of cores formed at predetermined distances and surrounded by a cladding. A bundle structure includes optical fibers joined in a close-packed arrangement. Specifically, one optical fiber is arranged at a center, and six optical fibers are arranged around the optical fiber arranged at the center. Accordingly, cores of the optical fibers are arranged at equal distances. The optical fibers are bonded together with an adhesive. Accordingly, claddings of adjacent optical fibers are in contact with each other either directly or via the adhesive. The adhesive also fills spaces between the optical fibers. | 01-09-2014 |
20140240819 | MULTI-CORE AMPLIFICATION OPTICAL FIBER AND MULTI-CORE OPTICAL FIBER AMPLIFIER - A multi-core amplification optical fiber includes a plurality of rare-earth-doped core portions and a cladding portion positioned at an outer periphery of the core portions and having refractive index lower than those of the core portions. When a doping concentration of the rare-earth of each of the core portions is 250 ppm to 2000 ppm, a relative refractive index difference of each of the core portions relative to the cladding portion is 0.5% to 2% at a wavelength of 1550 nm, and a core diameter of each of the core portions is 1 μm to 5 μm, a separation distance between each of the core portions and adjacent one of the core portions is set at equal to or larger than 30 μm and at equal to or smaller than 60 μm so that a light-crosstalk between the adjacent core portions is equal to or lower than −30 dB. | 08-28-2014 |
20150055923 | METHOD FOR CONNECTING MULTI-CORE FIBER, MULTI-CORE FIBER, AND METHOD FOR MANUFACTURING MULTI-CORE FIBER - A multicore fiber | 02-26-2015 |