Patents by Inventor Hiroshi Mukai

Hiroshi Mukai 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).

  • Publication number: 20140152742
    Abstract: An ink jet recording apparatus includes a recording head having a plurality of nozzles through which an ink composition containing an inorganic pigment is ejected, a nozzle surface having nozzle orifices, and a liquid-repellent film disposed on the nozzle surface; an absorbing member that absorbs the ink composition containing the inorganic pigment from the nozzle orifices and the nozzle surface; and an actuating mechanism including a pressing member that presses the absorbing member and the nozzle surface relative to each other. The actuating mechanism moves at least one of the absorbing member and the recording head relative to the other to perform a cleaning operation in which the ink composition is removed from the nozzle surface with the absorbing member. The absorbing member contains an impregnation liquid having a surface tension of 45 mN/m or less during the cleaning operation.
    Type: Application
    Filed: November 26, 2013
    Publication date: June 5, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Akira Mizutani, Hiroshi Mukai, Hiroki Nakane, Toshihiro Shinbara, Keiji Matsumoto, Masako Fukuda
  • Publication number: 20140098158
    Abstract: This invention provides a treatment liquid for an ink jet recording medium having a recording face of a plastic film, wherein the treatment liquid including at least a specific cyclic ester compound or a specific cyclic amide compound, a primer liquid for printing, and an ink composition. According to the present invention, a plastic recorded matter possessing excellent adhesion and waterfastness can be formed on a recording medium having a recording face of a plastic film.
    Type: Application
    Filed: December 10, 2013
    Publication date: April 10, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Hiroshi MUKAI, Kiyohiko TAKEMOTO
  • Patent number: 8692726
    Abstract: To provide a sensitive antenna with simple pattern, there is provided an antenna comprising: a core-side element connected to a core-side feed point; and a ground-side element connected to a ground-side feed point, wherein: the core-side element extends from the core-side feed point in a predetermined direction; the ground-side element includes: a first element which is connected to the ground-side feed point and extends in parallel to the core-side element; and a second element which is connected to the ground-side feed point and extends in parallel to the first element; and the first element is located close to a body flange to capacitively couple with the body flange.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: April 8, 2014
    Assignee: Central Glass Company Limited.
    Inventors: Hiroshi Mukai, Masanori Kaihatsu
  • Patent number: 8692727
    Abstract: A glass antenna includes hot-side and earth-side feeding points provided near an intermediate portion of an inside vertical or vertically-oblique edge of flange of a fixed window glass; a hot-side element; and an earth-side element. The hot-side element includes at least one first horizontal line extending from the hot-side feeding point in a horizontal direction, and at least one first vertical line extending from the hot-side feeding point in a direction away from the earth-side feeding point. The earth-side element includes at least one second horizontal line extending from the earth-side feeding point in the horizontal direction, and a third horizontal line extending from a tip of at least one second vertical line in the horizontal direction. The at least one second vertical line extends from the earth-side feeding point in a direction away from the hot-side feeding point.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: April 8, 2014
    Assignee: Central Glass Company, Limited
    Inventors: Hiroshi Mukai, Takayuki Suzuki
  • Publication number: 20140085365
    Abstract: A printing apparatus, has a head having a plurality of nozzles for discharging an ink containing thermoplastic resin particles and having a viscosity at 50° C. of 2.1 mPa·s or more to a non-ink-absorbing medium and a drive element provided in each of the nozzles, a heating portion which heats the medium, and a control portion which drives the drive elements by applying a drive waveform to discharge ink droplets from the nozzles corresponding to the drive elements, in which a first ink droplet is discharged from the nozzle by the application of the drive waveform to the drive element, and the discharge speed of an ink droplet whose discharge speed is lower of a second ink droplet and a third ink droplet discharged accompanying the first ink droplet is 4.0 m/s or more.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 27, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Nagatoshi Kasahara, Tomohiro Sayama, Hironori Sato, Masako Fukuda, Hiroshi Mukai, Toshihiro Shinbara
  • Patent number: 8614264
    Abstract: An ink jet recording method includes ejecting droplets of an aqueous ink composition on an ink-non-absorbent or ink-low-absorbent recording medium from an ink jet recording apparatus, and drying the aqueous ink composition on the recording medium by heating the recording medium to 40° C. or more. The aqueous ink composition used in the method contains a pigment, a first solvent and a second solvent, but does not contain glycerol. The first solvent content W‘is in the range of 3% to 6% by mass, and the ratio W2/W1 of the second solvent content W2 to the first solvent content W1 is 2 or more.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: December 24, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Katsuko Aoki, Hiroshi Mukai
  • Publication number: 20130328954
    Abstract: A printing apparatus includes a head having a nozzle through which ink that contains thermoplastic resin particles and whose viscosity at 50° C. is equal to or greater than 2.1 mPa·s is discharged, a pressure chamber, and a driving element; an ink non-absorptive medium; a heating unit; and a control unit that applies driving signals to the driving element. In the printing apparatus, a discharge waveform generated by the driving signal includes a first expansion-element that expands the pressure chamber, a contraction-element that contracts the pressure chamber having been expanded by the first expansion-element, a second expansion-element that expands the pressure chamber having been contracted by the contraction-element, a third expansion-element that further expands the pressure chamber having been expanded by the second-expansion element, and a connection-element that connects an end terminal of the second expansion-element with a start terminal of the third expansion-element at the same potential.
    Type: Application
    Filed: March 29, 2013
    Publication date: December 12, 2013
    Applicant: Seiko Epson Corporation
    Inventors: Masako FUKUDA, Tomohiro SAYAMA, Hironori SATO, Nagatoshi KASAHARA, Hiroshi MUKAI, Toshihiro SHINBARA
  • Publication number: 20130301041
    Abstract: In semiconductor surface inspection apparatus, foreign matter that sticks to the wafer can reduce the quality of the wafer. The present invention is directed to improving the internal cleanliness of the apparatus. Specifically, during rotation of a semiconductor wafer, foreign matter suspended in an atmosphere surrounding the wafer is attracted to a central section of the wafer, and that while heading from the central section of the wafer, towards an outer edge thereof, the foreign matter is most likely to stick to the wafer. In conventional techniques, sufficient consideration is not given to such likelihood of foreign matter sticking This invention supplies a medium from two directions to an inner circumferential section of a substrate. In accordance with the invention, foreign matter that sticks to a wafer can be reduced more significantly than in the conventional techniques.
    Type: Application
    Filed: March 7, 2013
    Publication date: November 14, 2013
    Applicant: Hitachi High-Technologies Corporation
    Inventors: Nobuhiro KANDA, Hiroshi MUKAI, Masatoshi WATANABE, Kazuyuki SUGIMURA, Katsuyasu INAGAKI, Yuichirou IIJIMA
  • Publication number: 20130300797
    Abstract: An ink jet recording method using ink selected from a group including (A) black ink containing black pigment, (B) mixed color black ink containing black and color pigments, and (C) color ink containing color pigment, in which an ink glossiness at 60° is increased in the order of black ink (A), mixed color black ink (B), and color ink (C), the target recording surface glossiness at 60° in a target recording medium is 40 or more, and at least one of the following is satisfied: (1) A black image is formed using at least a plurality of types of the color ink of (C) and a color image is formed using the color ink of (C), and (2) A black image is formed using the mixed color black ink of (B) and a color image is formed using the color ink of (C).
    Type: Application
    Filed: March 27, 2013
    Publication date: November 14, 2013
    Applicant: Seiko Epson Corporation
    Inventors: Yoshiko AZAMI, Takashi KOASE, Hiroshi MUKAI
  • Publication number: 20130300799
    Abstract: An ink jet recording apparatus includes at least: a print head that discharges ink jet recording ink from nozzles which are formed on a nozzle forming surface toward a recording medium; a wiping mechanism that wipes out ink which is attached to a nozzle forming surface using an absorbent material having an impregnating solution; and a cap member that adheres closely to the nozzle forming surface in a state in which a space is included in an area facing the nozzles, and removes at least ink of the space, and further includes the following characteristic (1) or (2). (1) Ink jet recording ink composition includes a first resin having a heat distortion temperature of 10° C. or less. (2) Ink jet recording ink composition includes a second resin and includes substantially no glycerin.
    Type: Application
    Filed: March 27, 2013
    Publication date: November 14, 2013
    Applicant: Seiko Epson Corporation
    Inventors: Akira MIZUTANI, Toshihiro SHINBARA, Hiroshi MUKAI, Masakazu OHASHI
  • Publication number: 20130293651
    Abstract: An inkjet recording method for printing by ejecting droplets of a water-based ink composition onto a recording medium having a recording surface which is a plastic film and by causing the droplets to adhere to the recording surface, including: using, as the water-based ink composition, a water-based ink composition including at least colorant, between 0.1 wt % and 1.5 wt % of a silicon-based surfactant, alkanediol, pyrrolidone derivative, thermoplastic resin, and water; and heating the water-based ink composition that has adhered to the recording surface to a temperature of 40° C. or higher.
    Type: Application
    Filed: July 10, 2013
    Publication date: November 7, 2013
    Inventors: Hiroshi MUKAI, Katsuko AOKI
  • Publication number: 20130265355
    Abstract: A printing apparatus includes a head having a nozzle ejecting an ink having thermoplastic resin particles and a viscosity of 2.1 mPa·s or more at 50° C., a pressure chamber, and a drive element; a medium having ink-unabsorbable characteristics and a length of 64 inches or less in a predetermined direction; a movement mechanism which moves the head in the predetermined direction; a heating unit which heats the medium; and a control unit which causes the movement mechanism to move the head in the predetermined direction and applies a drive waveform generating a pressure change in the ink inside the pressure chamber, to the drive element. The control unit applies a micro-vibration waveform having a size which does not allow the ink to be ejected from the nozzle onto the drive element corresponding to the nozzle if the nozzle does not eject the ink.
    Type: Application
    Filed: March 29, 2013
    Publication date: October 10, 2013
    Applicant: Seiko Epson Corporation
    Inventors: Hironori SATO, Tomohiro SAYAMA, Nagatoshi KASAHARA, Masako FUKUDA, Hiroshi MUKAI, Toshihiro SHINBARA
  • Patent number: 8523343
    Abstract: An ink jet recording method includes ejecting droplets of an aqueous ink composition from an ink jet recording apparatus onto a non-ink-absorbing or low-ink-absorbing recording medium, and heating the recording medium to 40° C. or more to dry the aqueous ink composition deposited on the recording medium, wherein the first solvent content (W1) is 3% by mass or more and 6% by mass or less of the mass of the aqueous ink composition, the ratio (W2/W1) of the second solvent content (W2) to the first solvent content (W1) is one or more, and the ratio [(W2+W3)/(W1)] of the total (W2+W3) of the second solvent content (W2) and the third solvent content (W3) to the first solvent content (W1) is three or more.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: September 3, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Katsuko Aoki, Hiroshi Mukai
  • Patent number: 8500264
    Abstract: A recording method for printing on a plastic film surface of a print medium by ejecting droplets of a water-based ink composition onto the plastic film surface includes applying a water-based ink composition on the plastic film surface, and heating the water-based ink composition on the plastic film surface to a temperature of 40° C. or more. The water-based ink composition contains a coloring agent, 0.1% to 1.5% by weight of a silicone surfactant, an acetylene glycol surfactant, a pyrrolidone derivative, a thermoplastic resin, and water.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: August 6, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Mukai, Katsuko Aoki
  • Patent number: 8474967
    Abstract: Recording onto a non-ink-absorbing recording medium is performed using an aqueous ink composition containing a first solvent composed of at least one selected from 2-pyrrolidone, 1,3-dimethyl-imidazolidinone, and N,N?-dimethylpropylene urea, a second solvent composed of at least one selected from 1,2-hexanediol and 1,2-pentanediol, and a third solvent composed of at least one selected from glycol diethers and heating the non-ink-absorbing recording medium at 40 to 60° C.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: July 2, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Katsuko Aoki, Hiroshi Mukai
  • Patent number: 8474966
    Abstract: Recording onto a non-ink-absorbing or low-ink-absorbing recording medium is performed using an aqueous ink composition containing a first solvent composed of a glycol diether having a boiling point of 150 to 220° C., a second solvent composed of at least one selected from 1,2-hexanediol and 1,2-pentanediol, and a third solvent composed of a glycol having a boiling point of 170 to 220° C. and conducting two drying steps at different heating conditions.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: July 2, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Katsuko Aoki, Hiroshi Mukai
  • Publication number: 20120252942
    Abstract: An aqueous ink composition includes at least one kind of water-insoluble colorant and a wax in which the wax is a paraffin wax with a melting point of 60° C. to 110° C. and an average particle size of 30 nm to 250 nm.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 4, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Katsuko AOKI, Hiroshi MUKAI
  • Publication number: 20120249705
    Abstract: An ink jet recording method includes heating an ink non-absorbent or low ink-absorbing recording medium to a temperature of 40° C. to 110° C. and performing recording using an aqueous ink composition containing a water-insoluble colorant, a paraffin wax, resin particles, and water.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 4, 2012
    Applicant: Seiko Epson Corporation
    Inventors: Katsuko Aoki, Hiroshi Mukai
  • Publication number: 20120229353
    Abstract: A glass antenna includes hot-side and earth-side feeding points provided near an intermediate portion of an inside vertical or vertically-oblique edge of flange of a fixed window glass; a hot-side element; and an earth-side element. The hot-side element includes at least one first horizontal line extending from the hot-side feeding point in a horizontal direction, and at least one first vertical line extending from the hot-side feeding point in a direction away from the earth-side feeding point. The earth-side element includes at least one second horizontal line extending from the earth-side feeding point in the horizontal direction, and a third horizontal line extending from a tip of at least one second vertical line in the horizontal direction. The at least one second vertical line extends from the earth-side feeding point in a direction away from the hot-side feeding point.
    Type: Application
    Filed: October 26, 2010
    Publication date: September 13, 2012
    Applicant: Central Glass Company, Limited
    Inventors: Hiroshi Mukai, Takayuki Suzuki
  • Patent number: 8210672
    Abstract: An inkjet recording method, including printing with an ink including a chromatic ink, an achromatic ink, and a resin ink; the resin ink contains at least thermoplastic resin particles that are insoluble in water but compatible with water-soluble solvents for resins as well as water-soluble solvent for resins; the inks all contain a silicon surfactant and an acetylene glycol surfactant that has an HLB value equal to or less than 6; and the printing method includes a step of drying performed during and/or after printing.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: July 3, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Mukai, Hidehiko Komatsu, Hiroshi Ito, Hitoshi Ohta