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Timestamp: 2014-09-22 06:17:47
Document Index: 595696038

Matched Legal Cases: ['art 1', 'art 2', 'art 1', 'art 3', 'art 2', 'art 4', 'art 2', 'art 2', 'art 2', 'art 5', 'art 4']

Patente US7690182 - Straight-type finish for synthetic fibers, processing method for false ... - Google PatentesB�squeda Im�genes Maps Play YouTube Noticias Gmail Drive M�s »Iniciar sesi�n<nobr> B�squeda avanzada de patentes</nobr>PatentesA straight-type finish, which has improved storage characteristics and is capable of preventing synthetic fibers from becoming electrically charged and uneven dyeing from being generated, contains a lubricant and a functional improvement agent at specified ratios. A metal organic sulfonate of a specified...http://www.google.es/patents/US7690182?utm_source=gb-gplus-sharePatente US7690182 - Straight-type finish for synthetic fibers, processing method for false twisted textured yarns using same, and false twisted textured yarns B�squeda avanzada de patentes N�mero de publicaci�nUS7690182 B2Tipo de publicaci�nConcesi�n N�mero de solicitudUS 12/124,842 Fecha de publicaci�n6 Abr 2010 Fecha de presentaci�n21 May 2008 Fecha de prioridad8 Jun 2007TarifaPagadasTambi�n publicado comoUS20080302079 N�mero de publicaci�n12124842, 124842, US 7690182 B2, US 7690182B2, US-B2-7690182, US7690182 B2, US7690182B2 InventoresSatoshi Aratani, Atsushi Toda, Makoto Hattori Cesionario originalTakemoto Yushi Kabushiki KaishaExportar citaBiBTeX, EndNote, RefManCitas de patentes (5), Clasificaciones (10), Eventos legales (2) Enlaces externos: USPTO, Cesi�n de USPTO, EspacenetStraight-type finish for synthetic fibers, processing method for false twisted textured yarns using same, and false twisted textured yarnsUS 7690182 B2 Resumen A straight-type finish, which has improved storage characteristics and is capable of preventing synthetic fibers from becoming electrically charged and uneven dyeing from being generated, contains a lubricant and a functional improvement agent at specified ratios. A metal organic sulfonate of a specified type is contained at least as a part of the functional improvement agent at a specified mass % of the total.
6. The straight-type finish of claim 1 wherein said lubricant comprises one or more selected from the group consisting of aliphatic ester compounds with 17-60 carbon atoms, mineral oils with viscosity of 2�10−6-2�10−4 m2/s at 30� C. and linear polyorgano siloxanes with viscosity of 1�10−6-2�10−3 m2/s at 30� C.
7. The straight-type finish of claim 5 wherein said lubricant comprises one or more selected from the group consisting of aliphatic ester compounds with 17-60 carbon atoms, mineral oils with viscosity of 2�10−6-2�10−4 m2/s at 30� C. and linear polyorgano siloxanes with viscosity of 1�10−6-2�10−3 m2/s at 30� C.
12. The processing method of claim 10 wherein said false twisting process is carried out by using a contact heater with surface temperature of 100-220� C. at a processing speed of 200-1200 m/minute.
13. The processing method of claim 11 wherein said false twisting process is carried out by using a contact heater with surface temperature of 100-220� C. at a processing speed of 200-1200 m/minute.
17. The false twisted textured yarns of claim 15 wherein said synthetic fibers are polyester synthetic fibers, polyamide synthetic fibers or polylactic acid synthetic fibers. Descripci�n
BACKGROUND OF THE INVENTION This invention relates to a straight-type finish for synthetic fibers, a processing method for false twisted textured yarns using the same and such false twisted textured yarns. In the production and fabrication of synthetic yarns, it has been known that the synthetic fibers tend to become electrically charged due to the mutual friction of the synthetic fibers and the friction with the guides, etc. during the false twisting of the synthetic fibers, for example, and that such static electricity causes imperfect cohesion, tension variations and yarn breaking, resulting in uneven dyeing at the time of the dyeing process. In order to prevent such occurrences, agents for providing smoothness and antistatic characteristics to synthetic fibers are employed in the production and fabrication of synthetic fibers. The present invention relates to a straight-type finish as an example of such agents for synthetic fibers, and a processing method for false twisted textured yarns using such a finish, as well as such false twisted textured yarns.
Examples of conventionally known processing agent for providing smoothness and antistatic characteristics to synthetic fibers include (1) those containing alicyclic polycarboxylic acid esters of alicyclic polycarboxylic acid and straight chain alcohol with 1-18 carbon atoms, branched alcohol with 3-18 carbon atoms or alicyclic alcohol with 3-10 carbon atoms with terminal normal chain ratio of 50% or more (as disclosed, for example, in Japanese Patent Publication Tokkai 10-265789); (2) those containing copolymers with molecular weight of 20,000-1,000,000 obtained by copolymerizing aliphatic hydrocarbon monomers (as disclosed, for example, in Japanese Patent Publication Tokkai 2-68367); (3) those containing a lubricating oil, oil-soluble polymers with Staudinger's viscosity-average molecular weight of 1,000,000-7,000,000 and a surfactant (as disclosed, for example, in Japanese Patent Publication Tokkai 2001-89975); (4) those containing polyether compounds with molecules including 1,2-epoxyalkane with 6-24 carbon atoms or polymerization residual group of alkylene oxide with 2-4 carbon atoms therewith (as disclosed, for example, in Japanese Patent Publication Tokkai 5-9873); and (5) those containing ester compounds with 25 or more carbon atoms obtained from higher aliphatic acid and higher alcohol by 30 weight % or more and an emulsifier with a cloudy point at 40� C. or more and 80� C. or less by 20 weight % or more (as disclosed, for example, in Japanese Patent Publication Tokkai 5-321058).
SUMMARY OF THE INVENTION It is therefore an object of this invention to provide a straight-type finish for synthetic fibers which itself is superior in storage stability and is capable of sufficiently preventing synthetic fibers from becoming electrically charged as it is applied thereto and to thereby prevent the occurrence of uneven dyeing, a processing method for false twisted textured yarns using such a finish and false twisted textured yarns obtained by such a method.
DETAILED DESCRIPTION OF THE INVENTION The invention relates to a straight-type finish for synthetic fibers comprising a lubricant and a functional improvement agent, containing the lubricant at 70-99.5 mass % of the total and the functional improvement agent at 0.5-30 mass % of the total, and the functional improvement agent including metal organic sulfonate shown by formula 1 at 0.05-15 mass % of the total, formula 1 being:
Commonly known kinds of lubricant may be used for the finish of this invention. Examples of such lubricant include (1) aliphatic ester compounds such as lauryl oleate, stearyl oleate, oleyl oleate, octyl oleate, tridecyl oleate, methyl oleate, butyl oleate, 2-ethylhexyl oleate, octyl stearate, oleyl stearate, butyl palmitate, oleyl palmitate, oleyle laurate, oleyl isostearate, oleyl octanoate, ethylene glycol dilaurate, propylene glycol distearate, hexanediol dilaurate, glycerol tri-12-hydroxystearate, glycerol trioleate, glycerol palmitate distearate, trimethylol propane tripalmitate, sorbitan tetraoleate, pentaerithritol tetralaurate, distearyl succinate, distearyl glutarate, dicetyl adipate, dibehenyl pymerate, dibehenyl pimerate, dibehenyl suberate, distearyl azelate and distearyl sebasate; (2) mineral oils of various kinds having various viscosity; (3) linear polydimethyl siloxanes having various viscosity and linear polyorganosiloxanes having various viscosity obtained by modifying such linear polydimethyl siloxanes with ethyl group, phenyl group, fluoropropyl group, aminopropyl group, carboxyoctyl group, polyoxyethylene oxypropyl group or co-methoxypolyethoxy-polypropoxypropyl group; (4) polyether compounds such as polyether monools, polyether diols and polyether triols having polyoxyalkylene group; (5) aromatic ester compounds such as benzyl stearate, benzyl laurate, diisostearyl isophtharate and trioctyl trimellitate; and (6) (poly)etherester compounds such as (poly)etherester compound obtained from (poly)ether compound with alkylene oxide with 2-4 carbon atoms added to monohydric-trihydric aliphatic alcohol with 4-26 carbon atoms and aliphatic carboxylic acid with 4-26 carbon atoms, (poly)etherester compound obtained from (poly)ether compound with alkylene oxide with 2-4 carbon atoms added to monohydric-trihydric aromatic alcohol and aliphatic carboxylic acid with 4-26 carbon atoms, and (poly)etherester compound obtained from (poly)ether compound with alkylene oxide with 2-4 carbon atoms added to aliphatic alcohol with 4-26 carbon atoms and aromatic carboxylic acid. Among these, aliphatic ester compounds, mineral oils and linear polyorgano siloxanes are preferred as the lubricant, and aliphatic ester compounds with 17-60 carbon atoms obtained from aliphatic monohydric alcohol and aliphatic monocarboxylic acid, aliphatic complete ester compounds with 17-60 carbon atoms obtained from aliphatic polyhydric alcohol and aliphatic monocarboxylic acid, aliphatic ester compounds with 17-60 carbon atoms such as aliphatic partial ester compounds with 17-60 carbon atoms obtained from aliphatic polyhydric alcohol and aliphatic monocarboxylic acid, mineral oils with viscosity of 2�10−6- 2�10−4 m2/s at 30� C. and linear polydimethyl siloxane with viscosity of 1�10−6-2�10−3 m2/s at 30� C. are more preferable. Such lubricants may be used either singly or as a mixture of two or more.
There is no particular limitation on the condition of the false twisting step. Since the heaters that are used for the false twisting may be of a contact type or a non-contact type and their combination may be of the single-step type or the double-step type, the process may be carried out in various combinations. If a heater of the contact type is used, its surface temperature is usually 70-240� C. and preferably 100-220� C. If a heater of the non-contact type is used, its surface temperature is usually 100-600� C. and preferably 150-500� C. In either case, the processing speed is usually 100-1500 m/minute and preferably 200-1200 m/minute. Although the process may be carried out under any condition in these ranges, it is preferable for the purpose of the invention to carry out the false twisting by using heaters of the contact type with surface temperature 100-220� C. at processing speed of 200-1200 m/minute.
Test examples are shown in what follows in order to describe the invention more clearly but these examples are not intended to limit the scope of the invention. In the following test and comparison examples, �part� will means �mass part� and �%� will mean �mass %�.
TEST EXAMPLES Part 1 Synthesis of Metal Organic Sulfonates Shown by Formula 1 Synthesis of Metal Organic Sulfonate (S-1)
Propylsulfonic acid (248 parts, 2.0 mol) and deionized water (1000 parts) were charged into a 4-neck flask with flush bottom outlet valves equipped with a thermometer, a stirrer and a reflux condenser and the mixture was stirred with heating for dissolving. While this solution was stirred thereafter, calcium hydroxide (74 parts, 1.0 mol) was added thereto over a period of ten minutes and after its temperature was raised to 70-90� C., a neutralization reaction was carried out at this temperature by stirring for one hour. After the stirring was stopped, it was left quietly for 30 minutes to separate the lower layer portion containing deposited calcium salt of propylsulfonic acid. Water (500 parts) was added to the portion containing the calcium salt of propylsulfonic acid. After it was heated to 70-90� C. and stirred for one hour, the stirring was stopped and it was left quietly for three hours at the same temperature. After the upper layer of aqueous solution was removed from the top by leaving the lower layer portion, it was washed with water. A similar washing process with water was repeated once more and calcium salt of propylsulfonic acid (257 parts, 0.9 mol) was obtained by dehydration and drying. This was collected as metal organic sulfonate (S-1).
R1 R2 Kind
dodecyl group
tetradecyl group
docosyl group
octacosyl group
triacontyl group
hexatriacontyl group
hexenyl group
decenyl group
tetradecenyl group
hexadecenyl group
octadecenyl group
13c-docosenyl group
13t-docosenyl group
propyl phenyl group
octyl phenyl group
decyl phenyl group
dodecyl phenyl group
octadecyl phenyl group
hexadecyl phenyl group
octacosyl phenyl group
triacontyl phenyl group
hexatriacontyl phenyl group
propyl naphthyl group
hexyl naphthyl group
diisopropyl naphthyl group
octyl naphtyl group
nonyl naphtyl group
dodecyl naphtyl group
decyl naphtyl group
tetradecyl naphthyl group
pentadecyl naphthyl group
octadecyl naphthyl group
triacontyl naphthyl group
hexatriacontyl naphtyl group
1,2-bis(octyloxycarbonyl)-1-ethane
1,2-bis(dodecyloxycarbonyl)-1-ethane
dodecyl naphthyl group
Part 2 Preparation of Finishes Test Example 1 Preparation of Finish (P-1) Mineral oil (A-1) with viscosity at 30� C. of 3.5�10−5 m2/s (82 parts) and metal organic sulfonate (S-1) synthesized in Part 1 (5 parts) were dissolved as lubricant at 60� C. with heating and stirring. After it was ascertained by visual observation that they were completely dissolved, α-dodecyl-ω-hydroxypoly(oxyethylene) (n=15) (B-1) (13 parts) was mixed and dissolved with stirring as a functional improvement agent other than metal organic sulfonate and the mixture was further stirred for one hour. After the stirring was stopped, it was cooled at a normal temperature to obtain finish (P-1).
Test Examples 2-35 and Comparison Examples 1-10 Preparation of Finishes (P-2)-(P-35) and (R-1)-(R-10) Finishes (P-2)-(P-35) and (R-1)-(R-10) were similarly synthesized. Details of each example are shown in Tables 2 and 3.
Part 3 Evaluation of Storage Stability After each of the finishes prepared in Part 2 was placed in a transparent beaker and left quietly for seven days at a normal temperature, the external appearance was observed visually and judged according to the following standards. The results are shown also in Tables 2 and 3.
TABLE 3 Functional improvement agent Metal organic Comparison Kind of Lubricant sulfonate Others Storage Example finish Kind Ratio (%) Kind Ratio (%) Kind Ratio (%) stability 1 R-1 A-1 80 T-1 5 B-1 15 C 2 R-2 A-1 80 T-2 5 B-4 15 C 3 R-3 A-1 80 T-3 5 B-5 15 C 4 R-4 A-1 99.7 S-4 0.01 B-4 0.29 B 5 R-5 A-1 100 � � � � A 6 R-6 � � S-4 15 B-1 55 B B-4 10 B-5 20 7 R-7 A-1 30 S-4 20 B-1 20 C B-4 10 B-6 20 8 R-8 A-1 70 S-2 29 B-1 1 C 9 R-9 A-1 80 � � B-2 20 C 10 R-10 A-1 50 S-2 15 B-3 35 C In Tables 2 and 3:
A-1: Mineral oil with viscosity at 30� C. of 3.5�10−5 m2/s
A-3: Polydimethyl siloxan with viscosity at 30� C. of 7.0�10 m2/s
Part 4 Production and Treatment of False Twisted Textured Yarns (A) Production and treatment of polyethylene terephtharate false twisted textured yarns
After polyethylene terephtharate chips with intrinsic viscosity 0.64 and containing titanium dioxide by 0.2% were dried by a known method, they were spun at 295� C. by using an extruder. After a 10% aqueous solution of a spinning lubricant for synthetic fibers (product name of DELION F-168 produced by Takemoto Yushi Kabushiki Kaisha) was caused to be attached to the running filaments obtained from its spinneret and cooled to become solid by the guide oiling method using a metering pump such that the attached quantity of spinning lubricant became 0.3%, they were collected by a guide and wound up at a speed of 3000 m/minute without mechanical drawing to obtain 128 dtex, 36-filament partially oriented yarns as a 10-kg wound cake. A false twisting process was carried out by using this cake with a false twister with a contact heater (product name of SDS1200 produced by TEIJIN SEIKI CO., LTD.) at a speed of 700 m/minute. The conditions of this process were as follows: draw ratio=1.525; twisting system=one guide disk on entrance side, one guide disk on exit side and four hard polyurethane disks; length and surface temperature of heater on twist side=2.5 m and 212� C.; heater on untwist side=none, and number of twists=3300 T/m. At the time of this false twisting process, a neat oiling process was carried out on the false twisted textured yarns prior to being wound around a paper tube by a roller oiling method such that the amount shown in Table 4 of the finish (P-1) prepared in Part 2 would become attached so as to obtain polyethylene terephtharate false twisted textured yarns of Test Example 36. Similarly, polyethylene terephtharate false twisted textured yarns of Test Examples 37-72 and Comparison Examples 11-20 were obtained. Details of each example are shown in Table 4.
After nylon 6,6 chips with sulfuric acid relative viscosity (ηr) 2.4 and containing titanium dioxide by 0.1% were dried by a known method, they were spun at 290� C. by using an extruder. After a 10% aqueous solution of a spinning lubricant for synthetic fibers (product name of DELION F-168 produced by Takemoto Yushi Kabushiki Kaisha) was caused to be attached to the running filaments obtained from its spinneret and cooled to become solid by the guide oiling method using a metering pump such that the attached quantity of spinning lubricant became 0.4%, they were collected by a guide and wound up at a speed of 4000 m/minute without mechanical drawing to obtain 70 dtex, 24-filament partially oriented yarns as a 10-kg wound cake. A false twisting process was carried out by using this cake with a false twister with a contact heater (product name of SDS1200 produced by TEIJIN SEIKI CO., LTD.) at a speed of 700 m/minute. The conditions of this process were as follows: draw ratio=1.220; twisting system=one guide disk on entrance side, one guide disk on exit side and four hard polyurethane disks; length and surface temperature of heater on twist side=2.5 m and 230� C.; heater on untwist side=none, and number of twists=3000 T/m. At the time of this false twisting process, a neat oiling process was carried out on the false twisted textured yarns prior to being wound around a paper tube by a roller oiling method such that the amount shown in Table 5 of the finish (P-1) prepared in Part 2 would become attached so as to obtain nylon 6,6 false twisted textured yarns of Test Example 73. Similarly, polyethylene terephtharate false twisted textured yarns of Test Examples 74-109 and Comparison Examples 21-30 were obtained. Details of each example are shown in Table 5.
Lactic polymer chips with average molecular weight of 120000, melt flow rate of 25 g/10 minutes (210�), glass transition temperature of 60� C. and specific gravity of 1.26 were spun at 210� C. by using an extruder. After a 10% aqueous solution of a spinning lubricant for synthetic fibers (product name of DELION F-168 produced by Takemoto Yushi Kabushiki Kaisha) was caused to be attached to the running filaments obtained from its spinneret and cooled to become solid by the guide oiling method using a metering pump such that the attached quantity of spinning lubricant became 0.5%, they were collected by a guide and wound up at a speed of 3800 m/minute by carrying out mechanical drawing to obtain 100 dtex, 36-filament drawn yarns as a 10-kg wound cake. The tensile strength and elongation of the obtained drawn yarns were respectively 4.6 g/dtx and 30%. A false twisting process was carried out by using this cake with a false twister with a contact heater (product name of SDS1200 produced by TEIJIN SEIKI CO., LTD.) at a speed of 500 m/minute. The conditions of this process were as follows: draw ratio=1.25; twisting system=one guide disk on entrance side, one guide disk on exit side and four hard polyurethane disks; length and surface temperature of heater on twist side=2.5 m and 130� C.; heater on untwist side=none, and number of twists=2500 T/m. At the time of this false twisting process, a neat oiling process was carried out on the false twisted textured yarns prior to being wound around a paper tube by a roller oiling method such that the amount shown in Table 6 of the finish (P-1) prepared in Part 2 would become attached so as to obtain polylactic acid false twisted textured yarns of Test Example 110. Similarly, polylactic acid false twisted textured yarns of Test Examples 111-146 and Comparison Examples 31-40 were obtained. Details of each example are shown in Table 6.
Part 5 Evaluation of False Twisted Textured Yarns Each of the false twisted textured yarns produced and treated in Part 4 was used as follows to measure the attached amount of the finish and its antistatic and dyeing characteristics were evaluated. The results are shown in Tables 4-6.
The polyethylene terephtharate false twisted textured yarns wound on the warping machine as described above for the evaluation of antistatic characteristics were subjected to sizing and drying operations and prepared for warping and passed through a sley of a water-jet loom. A plain woven article was prepared by passing the obtained polyethylene terephtharate false twisted textured yarns through the wefts. After this plain woven article was refined at 80� C. for relaxation, a disperse dye (product name of Kayalon Polyester Blue EBL-E produced by Nippon Kayaku Co., Ltd.) was used for dyeing by the high-pressure dyeing method. The dyed plain woven article was washed with water by a known method and after it was subjected to a reduction cleaning process and dried, it was set on a tube made of iron with diameter 70 mm and length 1 m to repeat for five times an evaluation process of visually counting the number of spots of deep dyeing on the surface of the plain woven article. The number of points on each sheet per sheet of plain woven article was obtained from the evaluation results. The results were evaluated according to the following standards:
The nylon 6,6 false twisted textured yarns wound on the warping machine as described above for the evaluation of antistatic characteristics were subjected to sizing and drying operations and prepared for warping and passed through a sley of a water-jet loom. A plain woven article was prepared by passing the obtained nylon 6,6 false twisted textured yarns through the wefts. After this plain woven article was refined at 80� C. for relaxation, an acid dye (product name of Sandolan Blue E-HRLN produced by Clariant) was used for dyeing by the normal pressure dyeing method. The dyed plain woven article was washed with water by a known method and after it was dried, it was set on a tube made of iron with diameter 70 mm and length 1 m to repeat for five times an evaluation process of visually counting the number of spots of deep dyeing on the surface of the plain woven article. The number of points on each sheet per sheet of plain woven article was obtained from the evaluation results. The results were evaluated according to similar standards as for the evaluation of the dyeing condition of polyethylene terephtharate false twisted textured yarns.
The polylactic acid false twisted textured yarns wound on the warping machine as described above for the evaluation of antistatic characteristics were subjected to sizing and drying operations and prepared for warping and passed through a sley of a water-jet loom. A plain woven article was prepared by passing the obtained polylactic acid false twisted textured yarns through the wefts. After this plain woven article was refined at 90� C. for relaxation, a disperse dye (product name of Kayalon Polyester Blue EBL-E produced by Nippon Kayaku Co., Ltd.) was used for dyeing by a dyeing method under the processing conditions of 100� C. and 40 minutes. The dyed plain woven article was washed with water by a known method and after it was subjected to a reduction cleaning processed and dried, it was set on a tube made of iron with diameter 70 mm and length 1 m to repeat for five times an evaluation process of visually counting the number of spots of deep dyeing on the surface of the plain woven article. The number of points on each sheet per sheet of plain woven article was obtained from the evaluation results. The results were evaluated according to similar standards as for the evaluation of the dyeing condition of polyethylene terephtharate false twisted textured yarns.
100 P-28
101 P-29
102 P-30
103 P-31
104 P-32
105 P-33
106 P-34
107 P-35
108 P-1
109 P-4
Citas de patentes Patente citada Fecha de presentaci�n Fecha de publicaci�n Solicitante T�tuloUS4351738 *21 Ago 198028 Sep 1982Teijin LimitedEthylene oxide-propylene oxide copolymerUS5491026 *28 Abr 199513 Feb 1996Henkel CorporationFibers treated with phosphate salts, emulsifiers, lubricants; durabilityUS7021349 *3 Sep 20044 Abr 2006Performance Fibers, Inc.Spin finishUS20050038283 *30 Sep 200417 Feb 2005New Japan Chemical, Co., Ltd.Dicarboxylic diester, process for producing the same, and refrigerating machine lubricating oil comprising the esterEP1626117A2 *3 Ago 200515 Feb 2006Takemoto Yushi Kabushiki KaishaProcessing agents and methods for synthetic fibers* Citada por examinadorClasificaciones Clasificaci�n de EE.UU.57/286 Clasificaci�n internacionalD01H13/30 Clasificaci�n cooperativaD06M2200/40, D06M2200/00, D06M7/00, D02G1/026, D06M13/256 Clasificaci�n europeaD06M7/00, D06M13/256, D02G1/02B8Eventos legales FechaC�digoEventoDescripci�n27 Sep 2013FPAYFee paymentYear of fee payment: 417 Feb 2010ASAssignmentOwner name: TAKEMOTO YUSHI KABUSHIKI KAISHA,JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ARATANI, SATOSHI;TODA, ATSUSHI;HATTORI, MAKOTO;US-ASSIGNMENT DATABASE UPDATED:20100217;REEL/FRAME:23948/255Effective date: 20100201Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ARATANI, SATOSHI;TODA, ATSUSHI;HATTORI, MAKOTO;US-ASSIGNMENT DATABASE UPDATED:20100406;REEL/FRAME:23948/255Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ARATANI, SATOSHI;TODA, ATSUSHI;HATTORI, MAKOTO;REEL/FRAME:023948/0255GirarImagen originalP�gina principal de Google - Sitemap - Descargas masivas de USPTO - Pol�tica de privacidad - Condiciones de servicio - Acerca de Google Patentes - Enviar sugerenciasDatos proporcionados por IFI CLAIMS Patent Services©2012 Google