Patents by Inventor Shinji Okuda
Shinji Okuda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7445588Abstract: An electroconductive roller including an electroconductive cellular material layer, comprised of a polyurethane composition, which has an average foamed cell diameter not more than 100 ?m and a variation ?D of the foamed cell diameter not more than 50 ?m. The electroconductive roller has a hardness variation ?Hs not more than 8 degrees and a circumferential non-uniformity index RMAX/RMIN in an electric resistance thereof not more than 1.3. The electroconductive cellular material layer is made of a thermosetting one-part polyurethane composition. And the polyurethane composition is cured instantly at a temperature not less than a thermosetting critical temperature for curing thereof, after it is foamed by a mechanical foaming method.Type: GrantFiled: March 8, 2005Date of Patent: November 4, 2008Assignees: Sumitomo Rubber Industries, Ltd., Sunstar Giken Kabushiki KaishaInventors: Takayuki Hattori, Kenichi Uesaka, Jun Ochi, Jun Nishibayashi, Shinji Bessyo, Satoshi Tanaka, Masaharu Takada, Shinji Okuda
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Patent number: 7338980Abstract: A piston pump has a piston and cylinder. A gas is supplied into the cylinder during and/or after a suction stroke of the piston pump, and a high-viscosity material is supplied into the cylinder after the suction stroke. A discharge stroke of the piston pump is effected after completion of supply of the high-viscosity material to thereby discharge the gas and high-viscosity material into a pipe. Use is made of piston pumps 45A and 45B, each including a cylinder and a piston which reciprocally moves within the cylinder to effect the suction stroke and discharge stroke, and a membrane gas generator 10 to which compressed air is supplied to generate a gas. A low-pressure gas generated by the membrane gas generator 10 is supplied into each piston pump and the high-viscosity material is introduced into the gas.Type: GrantFiled: May 9, 2002Date of Patent: March 4, 2008Assignees: Sunstar Giken Kabushiki Kaisha, Sunstar Suisse SAInventors: Shinji Okuda, Masaharu Takada, Yasuyuki Yoshimoto
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Publication number: 20070228015Abstract: A lower arm is passed through a slot in a machining tank. The slot of the machining tank is provided with a seal section for sealing with a plate-shaped seal member. The movable table is moved by a servomotor. The machining tank and a workpiece are fixed on the movable table. At the seal section, a seal member on the machining tank side slides with respect to the plate-shaped seal member, thereby generating a sliding resistance. This sliding resistance increases as a sludge produced by electric discharge adheres to the seal section, thereby distorting the lower arm and influencing the machining accuracy. Accordingly, a load that acts on the servomotor is detected, and a sliding resistance load at the seal section is obtained. When a reference load is exceeded by the detected resistance load, arrival of the seal section at the timing for maintenance is displayed and notified.Type: ApplicationFiled: March 6, 2007Publication date: October 4, 2007Applicant: FANUC LTDInventors: Yuki Kita, Shinji Okuda, Hikaru Yamane
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Patent number: 7229117Abstract: A vehicle seat moving device may include first and second longitudinal moving mechanisms and a lateral moving mechanism. Each of the longitudinal moving mechanisms has a longitudinal slide rail that is attached to a vehicle floor and a longitudinal slider that is associated with a vehicle seat. The lateral moving mechanism has a lateral moving path that is attached to a vehicle floor and a lateral moving element that is movably attached to the lateral moving path. The lateral moving path is disposed between the first and second longitudinal moving mechanisms so that the lateral moving element can move between the first and second longitudinal moving mechanisms. The longitudinal slider is arranged and constructed to slidably engage to the longitudinal slide rail. Also, the longitudinal slider is arranged and constructed to be engaged with and disengaged from the longitudinal slide rail or the vehicle seat.Type: GrantFiled: March 30, 2006Date of Patent: June 12, 2007Assignee: Toyota Boshoku Kabushiki KaishaInventors: Shinji Okuda, Hideki Akiya, Tadashi Nie
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Patent number: 7211162Abstract: A hollow bead of high quality is applied and molded into a shape corresponding to and following a shape of an applying position onto which the bead is to be applied. A bead-molding apparatus includes a discharging device of a double nozzle structure comprised of an inner nozzle and an outer nozzle, a highly viscous material feed unit for feeding a highly viscous material that is fluid in a form of a stream in a high speed flow region and can retain a shape into which it is applied and molded in a low speed flow region, a manipulator disposed so as to transfer the discharging device mounted thereon to a desired position, and a controller for controlling overall operations of the apparatus. The discharging device is controlled so as to move along the applying position of a member while feeding gases thereto from the inner nozzle and discharging the highly viscous material thereto from the outer nozzle.Type: GrantFiled: April 7, 2004Date of Patent: May 1, 2007Assignees: Sunstar Giken Kabushiki Kaisha, Sunstar Suisse SAInventors: Shinji Okuda, Masaharu Takada, Hitoshi Fujii
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Publication number: 20060261624Abstract: A vehicle seat moving device may include first and second longitudinal moving mechanisms and a lateral moving mechanism. Each of the longitudinal moving mechanisms has a longitudinal slide rail that is attached to a vehicle floor and a longitudinal slider that is associated with a vehicle seat. The lateral moving mechanism has a lateral moving path that is attached to a vehicle floor and a lateral moving element that is movably attached to the lateral moving path. The lateral moving path is disposed between the first and second longitudinal moving mechanisms so that the lateral moving element can move between the first and second longitudinal moving mechanisms. The longitudinal slider is arranged and constructed to slidably engage to the longitudinal slide rail. Also, the longitudinal slider is arranged and constructed to be engaged with and disengaged from the longitudinal slide rail or the vehicle seat.Type: ApplicationFiled: March 30, 2006Publication date: November 23, 2006Inventors: Shinji Okuda, Hideki Akiya, Tadashi Nie
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Publication number: 20060237915Abstract: A seal structure that channels drainage of machining fluid from the periphery of an opening for a lower arm of a wire-cut electric discharge machine. A seal structure that restricts flowage to the outside of machining fluid through the opening (slot) in a side of a machining tank has a first seal means and a second seal means (a seal plate) affixed to the first seal means so as to cover the opening. An unevenly shaped part including ridges and grooves extending in the long direction of the first seal means is formed on the first seal means, and passages are provided that communicate with the groove and the outside to channel the machining fluid drainage path. The first seal means may be composed of a plurality of members. The passages are provided by notches or through-holes formed in a ridge, or by through-holes extending from the groove to the exterior of the first seal means without passing through the ridges. Suction means that sucks up machining fluid draining from the passages may be provided.Type: ApplicationFiled: April 24, 2006Publication date: October 26, 2006Applicant: FANUC LTDInventors: Yuki Kita, Shinji Okuda, Hikaru Yamane
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Publication number: 20060199178Abstract: Accurate and highly reproducible means of detecting a base substitution mutation (for example, SNP), an insertion mutation or a deletion mutation with the use of a nucleic acid sample in a trace amount and a method of typing gene polymorphisms using the means.Type: ApplicationFiled: May 30, 2003Publication date: September 7, 2006Inventors: Eiji Kobayashi, Tatsuji Enoki, Masashige Tanabe, Yu Ueda, Shinji Okuda, Hiroaki Sagawa, Ikunoshin Kato
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Publication number: 20060148909Abstract: The present invention provides one-pack type curing paste material to be used in a method of mechanically mixing and dispersing a low-pressure gas into a paste material to produce an expandable material, followed by discharging and expanding the expandable material to produce a curable product, especially a cured product with dense uniform closed-cells by using a mechanical foaming apparatus suitable for performing of the method. The one-pack type curing paste material of the present invention has viscosity characteristics included in the zone defined by points A, B, C and D in the graph of FIG. 1 showing the relationship between shear rate and apparent viscosity, said points A and B being at 50-30000 poises of an apparent viscosity (measured by a Brookfield rotary viscometer using spindle No.7, at 2 rpm, at 20° C.) in low shear rate region (0.43 sec?1) and said points C and D being at 20-2000 poises of an apparent viscosity (measured by an apparent viscosity meter according to JIS K2220, at 20° C.Type: ApplicationFiled: January 7, 2004Publication date: July 6, 2006Inventors: Masaharu Takada, Shinji Ochi, Shinji Okuda
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Publication number: 20050202946Abstract: An electroconductive roller including an electroconductive cellular material layer, comprised of a polyurethane composition, which has an average foamed cell diameter not more than 100 ?m and a variation ?D of the foamed cell diameter not more than 50 ?m. The electroconductive roller has a hardness variation ?Hs not more than 8 degrees and a circumferential non-uniformity index RMAX/RMIN in an electric resistance thereof not more than 1.3. The electroconductive cellular material layer is made of a thermosetting one-part polyurethane composition. And the polyurethane composition is cured instantly at a temperature not less than a thermosetting critical temperature for curing thereof, after it is foamed by a mechanical foaming method.Type: ApplicationFiled: March 8, 2005Publication date: September 15, 2005Inventors: Takayuki Hattori, Kenichi Uesaka, Jun Ochi, Jun Nishibayashi, Shinji Bessyo, Satoshi Tanaka, Masaharu Takada, Shinji Okuda
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Patent number: 6921876Abstract: A method for adjusting the gap between an upper nozzle of a wire electric discharge machine includes placing a spacer member of a known thickness between a forward end of the upper nozzle and a workpiece. The forward end of the upper nozzle is brought into contact with the spacer member, so that the forward end of the upper nozzle is prevented from coming into direct contact with the workpiece. A Z-axis position of the upper nozzle is controlled on the basis of the thickness of the spacer member and the desired nozzle gap to set the gap between the forward end of the upper nozzle and the workpiece to a predetermined value. In controlling the Z-axis position of the upper nozzle, correction is made to compensate for a deformation of the upper guide, the spacer member, the workpiece, and the upper nozzle, and/or for a displacement of the upper guide resulting from a pressure of a working fluid.Type: GrantFiled: May 28, 2004Date of Patent: July 26, 2005Assignee: Fanuc LTDInventors: Shinji Okuda, Mitsuyoshi Ishihara, Junichi Kato
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Publication number: 20050029304Abstract: A piston pump has a piston and cylinder. A gas is supplied into the cylinder during and/or after a suction stroke of the piston pump, and a high-viscosity material is supplied into the cylinder after the suction stroke. A discharge stroke of the piston pump is effected after completion of supply of the high-viscosity material to thereby discharge the gas and high-viscosity material into a pipe. Use is made of piston pumps 45A and 45B, each including a cylinder and a piston which reciprocally moves within the cylinder to effect the suction stroke and discharge stroke, and a membrane gas generator 10 to which compressed air is supplied to generate a gas. A low-pressure gas generated by the membrane gas generator 10 is supplied into each piston pump and the high-viscosity material is introduced into the gas.Type: ApplicationFiled: September 16, 2004Publication date: February 10, 2005Inventors: Shinji Okuda, Masaharu Takada, Yasuyuki Yoshimoto
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Publication number: 20040238498Abstract: A method for adjusting the gap between an upper nozzle of a wire electric discharge machine includes placing a spacer member of a known thickness between a forward end of the upper nozzle and a workpiece. The forward end of the upper nozzle is brought into contact with the spacer member, so that the forward end of the upper nozzle is prevented from coming into direct contact with the workpiece. A Z-axis position of the upper nozzle is controlled on the basis of the thickness of the spacer member and the desired nozzle gap to set the gap between the forward end of the upper nozzle and the workpiece to a predetermined value. In controlling the Z-axis position of the upper nozzle, correction is made to compensate for a deformation of the upper guide, the spacer member, the workpiece, and the upper nozzle, and/or for a displacement of the upper guide resulting from a pressure of a working fluid.Type: ApplicationFiled: May 28, 2004Publication date: December 2, 2004Applicant: FANUC, LTDInventors: Shinji Okuda, Mitsuyoshi Ishihara, Junichi Kato
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Publication number: 20040188001Abstract: The hollow bead of high quality are applied and molded into a shape corresponding to and following the shape of a applying position onto which the bead are to be applied. The bead-molding apparatus includes a discharging device 10 of a double nozzle structure 12 comprised of an inner nozzle 36 and an outer nozzle 38, a highly viscous material feed unit 16 for feeding a highly viscous material that is fluid in the form of a stream in a high speed flow region and can retain the shape into which it is applied and molded in a low speed flow region, a manipulator 60 disposed so as to transfer the discharging device 10 mounted thereon to a desired position, and a controller 22 for controlling the overall operations of the apparatus. The discharging device 10 is controlled so as to move along the applying position of a work 23 while feeding gases thereto from the inner nozzle 36 and discharging the highly viscous material thereto from the outer nozzle 38.Type: ApplicationFiled: April 7, 2004Publication date: September 30, 2004Inventors: Shinji Okuda, Masaharu Takada, Hitoshi Fujii
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Patent number: 6683269Abstract: For maintenance and management of filters in a wire electric discharge machine, a sensor for detecting the filtration pressure is disposed between the filter and pump in the working fluid circulation channel. The sensor periodically senses the pressure and its output (transition of water pressure) is stored and sequentially displayed as a graph on a display device to allow monitoring of filter clogging by checking such sensor output at the time of commencing the processing.Type: GrantFiled: March 18, 2002Date of Patent: January 27, 2004Assignee: Fanuc Ltd.Inventors: Yuki Kita, Hiroyuki Abe, Shinji Okuda
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Patent number: 6680430Abstract: A speaker edge is made of a thermosetting composition consisting of a polyurethane prepolymer and an inactivated solid polyamine as a latent hardener. A gas is dispersed in the thermosetting composition, prior to feed into a mold, so that it can foam and solidify to give the speaker edge. In a method of making the speaker edge, the composition will be injected into a female mold segment heated below the critical thermosetting temperature, foaming the composition. Then placed in the female segment is a male segment heated above the critical temperature, causing the ingredients to react with each other to solidify in the mold.Type: GrantFiled: July 1, 2002Date of Patent: January 20, 2004Assignees: Matsushita Electric Industrial Co., Ltd., Sunstar Engineering, Inc.Inventors: Shinya Tabata, Shinya Mizone, Yoshiyuki Takahashi, Kiyoshi Ikeda, Hiroko Yamazaki, Shinji Okuda, Masaharu Takada
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Publication number: 20030106740Abstract: A speaker edge is made of a thermosetting composition consisting of a polyurethane prepolymer and an inactivated solid polyamine as a latent hardener. A gas is dispersed in the thermosetting composition, prior to feed into a mold, so that it can foam and solidify to give the speaker edge. In a method of making the speaker edge, the composition will be injected into a female mold segment heated below the critical thermosetting temperature, foaming the composition. Then placed in the female segment is a male segment heated above the critical temperature, causing the ingredients to react with each other to solidify in the mold.Type: ApplicationFiled: July 1, 2002Publication date: June 12, 2003Inventors: Shinya Tabata, Shinya Mizone, Yoshiyuki Takahashi, Kiyoshi Ikeda, Hiroki Yamazaki, Shinji Okuda, Masaharu Takada
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Patent number: 6538040Abstract: A piston pump has a piston and cylinder, the piston being adapted to reciprocally move within the cylinder to effect a suction stroke and discharge stroke. A gas is supplied into the cylinder during and/or after the suction stroke of the piston pump, and a high-viscosity material is supplied into the cylinder after the suction stroke. A discharge stroke of the piston pump is effected after completion of supply of the high-viscosity material in the cylinder to thereby discharge the gas and high-viscosity material into a pipe. A first step introduces a high-viscosity material into a gas, a second step pressurizes, by a pump, a combination of the high-viscosity material and the gas transferred from the first step, a third step passes the combination in a pressurized state through a dispersing pipe to disperse the gas into the high-viscosity material to produce a mixture, and a fourth step discharges the mixture to effect foaming.Type: GrantFiled: November 4, 1999Date of Patent: March 25, 2003Assignees: Sunstar Giken Kabushiki Kaisha, Uni-Sunstar B.V.Inventors: Shinji Okuda, Masaharu Takada, Yasuyuki Yoshimoto
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Publication number: 20020134759Abstract: The present invention relates to the maintenance and management of filters in a wire electric discharge machine. A sensor for detecting the filtration pressure is disposed between the filter and pump in the working fluid circulation channel. The sensor output is sequentially displayed as a graph on a display device. The operator is thereby able to comprehend the progress status of filter clogging by checking such sensor output (transition of water pressure) at the time of commencing the processing.Type: ApplicationFiled: March 18, 2002Publication date: September 26, 2002Applicant: Fanuc Ltd.Inventors: Yuki Kita, Hiroyuki Abe, Shinji Okuda
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Publication number: 20020132859Abstract: A piston pump has a piston and cylinder, the piston being adapted to reciprocally move within the cylinder to effect a suction stroke and discharge stroke. A gas is supplied into the cylinder during and/or after the suction stroke of the piston pump, and a high-viscosity material is supplied into the cylinder after the suction stroke. A discharge stroke of the piston pump is effected after completion of supply of the high-viscosity material in the cylinder to thereby discharge the gas and high-viscosity material into a pipe. A first step introduces a high-viscosity material into a gas, a second step pressurizes, by a pump, a combination of the high-viscosity material and the gas transferred from the first step, a third step passes the combination in a pressurized state through a dispersing pipe to disperse the gas into the high-viscosity material to produce a mixture, and a fourth step discharges the mixture to effect foaming.Type: ApplicationFiled: May 9, 2002Publication date: September 19, 2002Inventors: Shinji Okuda, Masaharu Takada, Yasuyuki Yoshimoto