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).

  • Patent number: 11214710
    Abstract: [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: Grant
    Filed: January 16, 2020
    Date of Patent: January 4, 2022
    Assignee: MAINTECH CO., LTD.
    Inventors: Hiroshi Sekiya, Kazuyuki Yusa
  • Patent number: 11008706
    Abstract: [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: Grant
    Filed: March 29, 2019
    Date of Patent: May 18, 2021
    Assignee: MAINTECH CO., LTD.
    Inventors: Hiroshi Sekiya, Tomohiko Nagatsuka, Kazuyuki Yusa
  • Publication number: 20210032497
    Abstract: [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: Application
    Filed: January 16, 2020
    Publication date: February 4, 2021
    Inventors: Hiroshi SEKIYA, Kazuyuki YUSA
  • Publication number: 20200340181
    Abstract: [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: Application
    Filed: March 29, 2019
    Publication date: October 29, 2020
    Inventors: Hiroshi SEKIYA, Tomohiko NAGATSUKA, Kazuyuki YUSA
  • Publication number: 20200139399
    Abstract: [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: Application
    Filed: March 28, 2019
    Publication date: May 7, 2020
    Inventors: Hiroshi SEKIYA, Tomohiko NAGATSUKA, Kazuyuki YUSA, Ayano SUGA
  • Patent number: 10619299
    Abstract: 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: Grant
    Filed: March 25, 2016
    Date of Patent: April 14, 2020
    Assignee: MAINTECH CO., LTD.
    Inventors: Hiroshi Sekiya, Daisuke Kobayashi, Hiraku Sawada, Shinichiro Ogoda, Kazuyuki Yusa
  • Publication number: 20200048836
    Abstract: [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: Application
    Filed: March 28, 2019
    Publication date: February 13, 2020
    Inventors: Hiroshi SEKIYA, Tomohiko NAGATSUKA, Kazuyuki YUSA, Ayano SUGA
  • Publication number: 20190211504
    Abstract: 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: Application
    Filed: September 29, 2016
    Publication date: July 11, 2019
    Inventors: Hiroshi SEKIYA, Daisuke KOBAYASHI, Hiraku SAWADA, Kazuyuki YUSA
  • Publication number: 20180100270
    Abstract: 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: Application
    Filed: March 25, 2016
    Publication date: April 12, 2018
    Applicant: MAINTECH CO., LTD.
    Inventors: Hiroshi SEKIYA, Daisuke KOBAYASHI, Hiraku SAWADA, Shinichiro OGODA, Kazuyuki YUSA
  • Patent number: 7327356
    Abstract: 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: Grant
    Filed: December 7, 2004
    Date of Patent: February 5, 2008
    Assignee: NEC Electronics Corporation
    Inventor: Kazuyuki Yusa
  • Publication number: 20050125577
    Abstract: 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: Application
    Filed: December 7, 2004
    Publication date: June 9, 2005
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Kazuyuki Yusa
  • Patent number: 6313830
    Abstract: 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: Grant
    Filed: August 18, 1998
    Date of Patent: November 6, 2001
    Assignee: NEC Corporation
    Inventor: Kazuyuki Yusa
  • Patent number: 6018188
    Abstract: 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: Grant
    Filed: March 28, 1997
    Date of Patent: January 25, 2000
    Assignee: NEC Corporation
    Inventor: Kazuyuki Yusa