Patents by Inventor Kazuyuki Yusa
Kazuyuki Yusa 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: 11214710Abstract: [Problem] To provide a contamination preventing agent composition capable of effectively preventing pitch contamination in a dry part. [Solution] The present invention relates to a contamination preventing agent composition for preventing pitch contamination in a dry part D of a papermaking process, the composition containing: a linear polysiloxane compound represented by formula (1); and a cyclic siloxane compound. [In formula (1), a substituent R1 represents, in the same molecule, a hydrogen atom, an alkyl group, a methylphenyl group, a polyether group, a higher fatty acid ester group, an amino-modified group, an epoxy-modified group, a carboxylic group, a phenol group, a mercapto group, a carbinol group, or a methacrylic group, and a repeating number n of a siloxane unit represents an integer of 20-1430.Type: GrantFiled: January 16, 2020Date of Patent: January 4, 2022Assignee: MAINTECH CO., LTD.Inventors: Hiroshi Sekiya, Kazuyuki Yusa
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Patent number: 11008706Abstract: [Problem] To provide a canvas cleaning device that can prevent re-adhesion of stains as much as possible and also efficiently clean the canvas. [Solution] The canvas cleaning device 100 is provided with a base part 11 capable of sliding along a rail part 1 that extends in a width direction of a canvas K1, a cone part 13 having a cylinder shape, which is attached to the base part 11, and extends straightly, a high pressure water spraying device 13a installed inside the cone part 13, an arm part 15 that is extended and installed on the downstream side from the base part 11 and a nozzle device 16 attached to the tip of the arm part 15, and in this structure, high pressure water is sprayed onto the canvas K1 from the high pressure water spraying device 13a inside the cone part 13.Type: GrantFiled: March 29, 2019Date of Patent: May 18, 2021Assignee: MAINTECH CO., LTD.Inventors: Hiroshi Sekiya, Tomohiko Nagatsuka, Kazuyuki Yusa
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Publication number: 20210032497Abstract: [Problem] To provide a contamination preventing agent composition capable of effectively preventing pitch contamination in a dry part. [Solution] The present invention relates to a contamination preventing agent composition for preventing pitch contamination in a dry part D of a papermaking process, the composition containing: a linear polysiloxane compound represented by formula (1); and a cyclic siloxane compound. [In formula (1), a substituent R1 represents, in the same molecule, a hydrogen atom, an alkyl group, a methylphenyl group, a polyether group, a higher fatty acid ester group, an amino-modified group, an epoxy-modified group, a carboxylic group, a phenol group, a mercapto group, a carbinol group, or a methacrylic group, and a repeating number n of a siloxane unit represents an integer of 20-1430.Type: ApplicationFiled: January 16, 2020Publication date: February 4, 2021Inventors: Hiroshi SEKIYA, Kazuyuki YUSA
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Publication number: 20200340181Abstract: [Problem] To provide a canvas cleaning device that can prevent re-adhesion of stains as much as possible and also efficiently clean the canvas. [Solution] The canvas cleaning device 100 is provided with a base part 11 capable of sliding along a rail part 1 that extends in a width direction of a canvas K1, a cone part 13 having a cylinder shape, which is attached to the base part 11, and extends straightly, a high pressure water spraying device 13a installed inside the cone part 13, an arm part 15 that is extended and installed on the downstream side from the base part 11 and a nozzle device 16 attached to the tip of the arm part 15, and in this structure, high pressure water is sprayed onto the canvas K1 from the high pressure water spraying device 13a inside the cone part 13.Type: ApplicationFiled: March 29, 2019Publication date: October 29, 2020Inventors: Hiroshi SEKIYA, Tomohiko NAGATSUKA, Kazuyuki YUSA
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Publication number: 20200139399Abstract: [Problem] To provide a method for spraying a chemical solution, including: spraying the chemical solution onto a surface of a dryer roller with a nozzle device reciprocated in the width direction of the dryer roller rotating at a high speed, whereby a sufficient amount of the chemical solution can be remained on the surface of the dryer roller. [Solution] The present invention is directed to a method for spraying a chemical solution, including: spraying the chemical solution onto a dryer roller by a nozzle device with the nozzle device reciprocated along a rail extended in the width direction of the dryer roller, in a state that the dryer roller, for guiding wet paper, is being rotated, in a dry part of a paper-making machine, wherein a time T required for the nozzle device to travel one-way is set as 0.4 to 3.Type: ApplicationFiled: March 28, 2019Publication date: May 7, 2020Inventors: Hiroshi SEKIYA, Tomohiko NAGATSUKA, Kazuyuki YUSA, Ayano SUGA
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Patent number: 10619299Abstract: To provide a contamination inhibitor composition capable of effectively inhibiting pitch contamination on a dry part. The present invention is a contamination inhibitor composition 1 which is imparted to a dry part D of a paper-making machine, and comprising a film forming agent and a gelling agent, wherein the film forming agent is an emulsion consisting of water, a modified silicone and an emulsifier and the gelling agent is a compound represented by the following formula (1): [in the formula (1), R1 each independently represents a hydrogen atom, a hydroxyl group, a carboxyl group or a hydrocarbon group optionally having a substituent having 1 to 3 carbon atoms, R2 each independently represents a hydroxyl group or a carboxyl group, R3 represents a hydrogen atom, a hydroxyl group or a carboxyl group, m is an integer of 1 to 5, and n is an integer of 0 to 5.].Type: GrantFiled: March 25, 2016Date of Patent: April 14, 2020Assignee: MAINTECH CO., LTD.Inventors: Hiroshi Sekiya, Daisuke Kobayashi, Hiraku Sawada, Shinichiro Ogoda, Kazuyuki Yusa
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Publication number: 20200048836Abstract: [Problem] To provide a method for spraying a chemical solution, including: spraying the chemical solution onto a surface of a dryer roller with a nozzle device reciprocated in the width direction of the dryer roller rotating at a high speed, whereby a sufficient amount of the chemical solution can be remained on the surface of the dryer roller. [Solution] The present invention is directed to a method for spraying a chemical solution, including: spraying the chemical solution onto a dryer roller by two nozzle devices disposed at a certain interval therebetween with the two nozzle devices each reciprocated along a rail extended in the width direction of the dryer roller, in a state that the dryer roller, for guiding wet paper, is being rotated, in a dry part of a paper-making machine, wherein a time T required for the two nozzle devices each to travel one-way is set as 0.2 to 1.Type: ApplicationFiled: March 28, 2019Publication date: February 13, 2020Inventors: Hiroshi SEKIYA, Tomohiko NAGATSUKA, Kazuyuki YUSA, Ayano SUGA
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Publication number: 20190211504Abstract: To provide a contamination-preventing agent composition and a contamination preventing method which even if the composition is imparted only to a dryer on the upstream side, a sufficient amount of the composition can be imparted to a dryer on the downstream side via a wet paper, and pitch contamination of a plurality of dryers can be prevented sufficiently as a whole. The present invention is a contamination-preventing agent composition imparted to dryers D1 to D8 in a dry part D of a paper machine and comprising an emulsion, a re-transfer agent and water, wherein the re-transfer agent has a cloud point of 55° C. or higher and an HLB value of 8 to 15, and preferably a contamination-preventing agent composition wherein the dynamic surface tension value at a lifetime of 100 ms by a maximum bubble pressure method is 65 mN/m or less.Type: ApplicationFiled: September 29, 2016Publication date: July 11, 2019Inventors: Hiroshi SEKIYA, Daisuke KOBAYASHI, Hiraku SAWADA, Kazuyuki YUSA
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Publication number: 20180100270Abstract: To provide a contamination inhibitor composition capable of effectively inhibiting pitch contamination on a dry part. The present invention is a contamination inhibitor composition 1 which is imparted to a dry part D of a paper-making machine, and comprising a film forming agent and a gelling agent, wherein the film forming agent is an emulsion consisting of water, a modified silicone and an emulsifier and the gelling agent is a compound represented by the following formula (1): [in the formula (1), R1 each independently represents a hydrogen atom, a hydroxyl group, a carboxyl group or a hydrocarbon group optionally having a substituent having 1 to 3 carbon atoms, R2 each independently represents a hydroxyl group or a carboxyl group, R3 represents a hydrogen atom, a hydroxyl group or a carboxyl group, m is an integer of 1 to 5, and n is an integer of 0 to 5.].Type: ApplicationFiled: March 25, 2016Publication date: April 12, 2018Applicant: MAINTECH CO., LTD.Inventors: Hiroshi SEKIYA, Daisuke KOBAYASHI, Hiraku SAWADA, Shinichiro OGODA, Kazuyuki YUSA
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Patent number: 7327356Abstract: The data transmission device transmits parallel data of a plurality of bits. The data transmission device includes a parallel data control unit that outputs parallel data for which the logic level of each bit of the parallel data is inverted when the number of bits representing a first logic level is greater than the number of bits representing a second logic level, a data transmitter portion that allows a second current that is larger than a first current representing the first logic level to flow to signal lines corresponding with a bit representing the second logic level; and a parallel data supply control unit that supplies parallel data for which the logic level of each bit of the parallel data is inverted to the reception side.Type: GrantFiled: December 7, 2004Date of Patent: February 5, 2008Assignee: NEC Electronics CorporationInventor: Kazuyuki Yusa
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Publication number: 20050125577Abstract: The data transmission device transmits parallel data of a plurality of bits. The data transmission device includes a parallel data control unit that outputs parallel data for which the logic level of each bit of the parallel data is inverted when the number of bits representing a first logic level is greater than the number of bits representing a second logic level, a data transmitter portion that allows a second current that is larger than a first current representing the first logic level to flow to signal lines corresponding with a bit representing the second logic level; and a parallel data supply control unit that supplies parallel data for which the logic level of each bit of the parallel data is inverted to the reception side.Type: ApplicationFiled: December 7, 2004Publication date: June 9, 2005Applicant: NEC ELECTRONICS CORPORATIONInventor: Kazuyuki Yusa
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Patent number: 6313830Abstract: A liquid crystal display makes it possible to reduce the current consumption and to prevent abnormal writing to a liquid crystal. A liquid crystal display driver of the liquid crystal display comprises: a shift register inputting a clock signal CLK; a data register inputting display data DR, DG and DB and outputs control signals DRc, DGc and DBc; and a latch, a DAC and an output amplifier inputting strobe signals respectively. This output amplifier makes output power only for amended source lines higher, based on the output power control signals DRc, DGc and DBc indicating whether the source line is being amended or not.Type: GrantFiled: August 18, 1998Date of Patent: November 6, 2001Assignee: NEC CorporationInventor: Kazuyuki Yusa
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Patent number: 6018188Abstract: Electrode pads 6a are provided in the central portion of a semiconductor element 5, and the semiconductor element 5, which is mounted on a TCP tape 1 without device holes in this TCP tape, is mounted on the surface side of the TCP tape. In addition, the internal ends 2a of the wiring films 2 provided on the surface of the TCP tape 1 are extended all the way to the central portion of the semiconductor element 5 in conformity with these electrode pads 6a. The outside extension can be reduced and the TCP tape 1 shortened even when the wiring films 2 have the required length. In addition, the absence of device holes dispenses with the costs associated with punching out of the device holes, improves the mechanical strength of the wiring films 2, and enhances the holding force of the semiconductor element.Type: GrantFiled: March 28, 1997Date of Patent: January 25, 2000Assignee: NEC CorporationInventor: Kazuyuki Yusa