Patents by Inventor Masakazu Yamaguchi

Masakazu Yamaguchi 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: 11945235
    Abstract: There is provided a printing apparatus which includes the following: A printhead including a plurality of nozzles that discharge ink to a print medium. A first detection unit that detects a distance between the printhead and a platen. An adjustment unit that adjusts the distance between the printhead and the platen. An acquisition unit that acquires difference information concerning a difference of a distance between the platen and each of the nozzle on an upstream side and the nozzle on a downstream side in a conveyance direction of the print medium. The adjustment unit adjusts the distance based on a detection result of the first detection unit and the difference information acquired by the acquisition unit.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: April 2, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohito Abe, Daigo Kuronuma, Ryutaro Takahashi, Naoaki Wada, Noriyuki Aoki, Ryohei Maruyama, Masakazu Nagashima, Toshiaki Yamaguchi
  • Patent number: 11926152
    Abstract: A printing apparatus includes a carriage mounted with a printing unit; a first motor configured to move the carriage in a predetermined direction; a second motor configured to move the carriage in the predetermined direction; and a control unit. The control unit executes a first mode in which, when causing the printing unit to perform printing under a first printing condition, the first motor is driven in a first direction and the second motor is driven in the first direction, and a second mode in which, when causing the printing unit to perform printing under a second printing condition different from the first printing condition, the first motor is driven in the first direction and the second motor is driven in the first direction while changing an output ratio between the first motor and the second motor.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: March 12, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryohei Maruyama, Daigo Kuronuma, Masakazu Nagashima, Tomohito Abe, Kenta Iimura, Hiromasa Yoneyama, Naoaki Wada, Kichinosuke Hirokawa, Akira Fujikake, Toshiaki Yamaguchi, Hideyuki Nozawa
  • Patent number: 10984344
    Abstract: A document classifying device (10) includes: a unit (22) configured to acquire information regarding a to-be-classified document set in which classification codes based on multi-viewpoint classification are assigned to each document in advance; a unit (23) configured to generate a multi-dimensional feature vector for each document in the to-be-classified document set, the multi-dimensional feature vector having, as elements, all or part of the classification codes assigned to the to-be-classified document set; classifying unit (24) configured to classify the to-be-classified document set using the feature vector of each document; and a generating unit (25) that generates document classification information indicating a result of the classification.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: April 20, 2021
    Assignee: Kao Corporation
    Inventors: Masakazu Yamaguchi, Toshiyuki Ando, Shinsuke Nagahara
  • Publication number: 20200279189
    Abstract: A document classifying device (10) includes: a unit (22) configured to acquire information regarding a to-be-classified document set in which classification codes based on multi-viewpoint classification are assigned to each document in advance; a unit (23) configured to generate a multi-dimensional feature vector for each document in the to-be-classified document set, the multi-dimensional feature vector having, as elements, all or part of the classification codes assigned to the to-be-classified document set; classifying unit (24) configured to classify the to-be-classified document set using the feature vector of each document; and a generating unit (25) that generates document classification information indicating a result of the classification.
    Type: Application
    Filed: November 22, 2017
    Publication date: September 3, 2020
    Applicant: Kao Corporation
    Inventors: Masakazu YAMAGUCHI, Toshiyuki ANDO, Shinsuke NAGAHARA
  • Publication number: 20150355529
    Abstract: A stroboscopic device includes a flash discharge tube having an anode and a cathode, and an auxiliary light emitter for emitting light toward cathode. The auxiliary light emitter includes a light-receiving element for measuring a light intensity of external light near the flash discharge tube, a comparator for comparing the light intensity of light received by the light-receiving element with a predetermined threshold immediately before or substantially simultaneously with the light-emission timing of the flash discharge tube, and a lighting section that is lit when the light intensity is lower than the predetermined threshold based on a result of comparison by the comparator. This achieves a stroboscopic device and image pickup device that can stably emit light from the flash discharge tube irrespective of the surrounding environment.
    Type: Application
    Filed: December 26, 2013
    Publication date: December 10, 2015
    Inventors: MASAKAZU YAMAGUCHI, TAKAHIRO IKEDA, TAKAKI INOUE, YOSHIHIRO KANBATA
  • Patent number: 8484155
    Abstract: A relation equation between wave information on unpermed hair strands and evaluation values of appearance of whole hair selected from among gloss of the whole hair, order of alignment of the hair strands, and frizziness of the hair strand is acquired from a plurality of subjects. Based on the relation equation, the appearance of whole hair of an arbitrary subject is evaluated from wave information on a hair strand of the arbitrary subject. This allows an objective evaluation of the gloss of whole hair, the order of alignment of hair strands, or the frizziness of the hair strand by a simple technique, and also allows an objective evaluation corresponding to cosmetic specialists' evaluations in terms of equivalent age.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: July 9, 2013
    Assignee: Kao Corporation
    Inventors: Masakazu Yamaguchi, Takashi Ito, Shinobu Nagase, Chihiro Saegusa
  • Publication number: 20120305416
    Abstract: Disclosed is a kit for hair dyeing or bleaching which includes: a first part containing an alkali agent; a second part containing an oxidizing agent; and an openable and closable airtight container into which the first and second parts are charged so as to form foam of a mixture thereof. Also disclosed is a method for dyeing or bleaching hair, which includes the following steps (a) to (d) or steps (a) to (e): (a) charging a first part containing an alkali agent and a second part containing an oxidizing agent into the main body of an openable and closable airtight container, (b) hermetically sealing the airtight container, (c) forming foam by shaking the airtight container, (d) taking out the formed foam from the airtight container and applying the foam to hair, and (e) re-foaming the applied foam on the hair.
    Type: Application
    Filed: February 8, 2011
    Publication date: December 6, 2012
    Applicant: KAO Corporation
    Inventors: Hajime Miyabe, Masakazu Yamaguchi, Takashi Kanda, Takashi Yamada, Daisuke Kodama
  • Patent number: 8319314
    Abstract: A semiconductor device comprises a first base layer of a first conductivity type; a plurality of second base layers of a second conductivity type, provided on a part of a first surface of the first base layer; trenches formed on each side of the second base layers, and formed to be deeper than the second base layers; an emitter layer formed along the trench on a surface of the second base layers; a collector layer of the second conductivity type, provided on a second surface of the first base layer opposite to the first surface; an insulating film formed on an inner wall of the trench, the insulating film being thicker on a bottom of the trench than on a side surface of the trench; a gate electrode formed within the trench, and isolated from the second base layers and the emitter layer by the insulating film; and a space section provided between the second base layers adjacent to each other, the space section being deeper than the second base layers and being electrically isolated from the emitter layer and t
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: November 27, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tsuneo Ogura, Masakazu Yamaguchi, Tomoki Inoue, Hideaki Ninomiya, Koichi Sugiyama
  • Publication number: 20110101417
    Abstract: A semiconductor device comprises a first base layer of a first conductivity type; a plurality of second base layers of a second conductivity type, provided on a part of a first surface of the first base layer; trenches formed on each side of the second base layers, and formed to be deeper than the second base layers; an emitter layer formed along the trench on a surface of the second base layers; a collector layer of the second conductivity type, provided on a second surface of the first base layer opposite to the first surface; an insulating film formed on an inner wall of the trench, the insulating film being thicker on a bottom of the trench than on a side surface of the trench; a gate electrode formed within the trench, and isolated from the second base layers and the emitter layer by the insulating film; and a space section provided between the second base layers adjacent to each other, the space section being deeper than the second base layers and being electrically isolated from the emitter layer and t
    Type: Application
    Filed: January 13, 2011
    Publication date: May 5, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tsuneo OGURA, Masakazu Yamaguchi, Tomoki Inoue, Hideaki Ninomiya, Koichi Sugiyama
  • Patent number: 7896932
    Abstract: A non-oxidative hair dye composition containing the components (a) and (b): (a) one or two or more kinds of a glycylglycine derivative represented by the following formula (1) and having two or three amino acid residues or salts thereof, and wherein Y represents an amino acid residue or a bivalent group represented by the formula (2); and (b) a direct dye; Wherein symbol * and R, X, n and m are defined in the claims and in the disclosure.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: March 1, 2011
    Assignee: Kao Corporation
    Inventors: Masaki Fukuhara, Masakazu Yamaguchi
  • Patent number: 7896931
    Abstract: The present invention relates to a hair dye composition containing a dissociative azo dye which has high dyeing power, is capable of imparting a vivid color to the hair firmly, has excellent fastness to light, shampooing, sweat, friction, and heat, and fades less with the passage of time because the dye is stable against an alkali agent or an oxidizing agent and does not decompose during hair dyeing; and a hair dyeing method using the hair dye composition.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: March 1, 2011
    Assignees: Kao Corporation, FUJIFILM Corporation
    Inventors: Masakazu Yamaguchi, Osamu Takiguchi, Masaaki Tsukase, Yasuhiro Ishiwata
  • Publication number: 20100218320
    Abstract: There is provided a non-oxidative hair dye composition having excellent shampoo fastness. A non-oxidative hair dye composition containing the following components (a) and (b): (a) a mixture of one or two or more kinds of a glycylglycine derivative represented by the following formula (1) and having two or three amino acid residues, or salts thereof [wherein X represents a bivalent hydrocarbon group having 1 to 4 carbon atoms which may be substituted with a hydroxyl group, or an amino acid residue; Y represents an amino acid residue, or a bivalent group represented by the following formula (2) (wherein symbol -* represents a bond that binds to an adjacent carbonyl group or oxygen atom); R represents a hydrogen atom, or a univalent hydrocarbon group having 1 to 4 carbon atoms which may be substituted with a hydroxyl group; and m and n each represent 0 or 1, provided that when both m and n represent 1, X cannot be an amino acid residue]; and (b) a direct dye.
    Type: Application
    Filed: October 10, 2008
    Publication date: September 2, 2010
    Applicant: KAO Corporation
    Inventors: Masaki Fukuhara, Masakazu Yamaguchi
  • Patent number: 7772641
    Abstract: A power semiconductor device includes: a semiconductor layer having a trench extending along a first direction in a stripe configuration; a gate electrode buried in the trench for controlling a current flowing in the semiconductor layer; and a gate plug made of a material having higher electrical conductivity than the gate electrode, the gate plug having the stripe configuration and being connected to the gate electrode along the first direction. The semiconductor layer includes: a first semiconductor layer of a first conductivity type; a second semiconductor layer of a second conductivity type provided partially in an upper face of the first semiconductor layer; a third semiconductor layer of the first conductivity type provided partially on the second semiconductor layer; and a fourth semiconductor layer of the second conductivity type provided on a lower face of the first semiconductor layer.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: August 10, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ichiro Omura, Yoko Sakiyama, Hideki Nozaki, Atsushi Murakoshi, Masanobu Tsuchitani, Koichi Sugiyama, Tsuneo Ogura, Masakazu Yamaguchi, Tatsuo Naijo
  • Publication number: 20100146716
    Abstract: A hair dye composition containing an azo dye represented by any one of the formulas (1) to (5): [wherein R1, R2a, and R2b each represents a hydrogen atom or a substituent, A and A? each represents an aromatic heterocyclic residue (having a free valence at carbon atom thereof) and these groups have, in the structure thereof, none of a carboxy group, a sulfo group, and a quaternary ammonium group]; [R represents a coupler component, X1 to X4 represent atoms coupled together with the carbon atom sandwiched between X1 and X4 to form a 5-membered heteroaromatic ring, V1 and V2 each represents a substituent, and a1 and a2 each stands for from 0 to 3]; and [R3 represents a hydroxy group, an alkylsulfonylamino group, an arylsulfonylamino group, or —CH(R4)(R5) (R4 and R5 each representing a substituent having a Hammett's constant ? of 0.2 or greater and less than 1.
    Type: Application
    Filed: June 27, 2008
    Publication date: June 17, 2010
    Applicants: KAO CORPORATION, FUJIFILM CORPORATION
    Inventors: Masakazu Yamaguchi, Osamu Takiguchi, Masaaki Tsukase, Yasuhiro Ishiwata
  • Publication number: 20100106679
    Abstract: A relation equation between wave information on unpermed hair strands and evaluation values of appearance of whole hair selected from among gloss of the whole hair, order of alignment of the hair strands, and frizziness of the hair strand is acquired from a plurality of subjects. Based on the relation equation, the appearance of whole hair of an arbitrary subject is evaluated from wave information on a hair strand of the arbitrary subject. This allows an objective evaluation of the gloss of whole hair, the order of alignment of hair strands, or the frizziness of the hair strand by a simple technique, and also allows an objective evaluation corresponding to cosmetic specialists' evaluations in terms of equivalent age.
    Type: Application
    Filed: January 30, 2008
    Publication date: April 29, 2010
    Applicant: KAO CORPORATION
    Inventors: Masakazu Yamaguchi, Takashi Ito, Shinobu Nagase, Chihiro Saegusa
  • Publication number: 20100092415
    Abstract: Provided is a hair frizziness reducing agent containing a lower alcohol and water, having a viscosity of from 1 to 90,000 mPa·s and used by leaving, after application to the scalp, the agent as is without washing it away.
    Type: Application
    Filed: January 30, 2008
    Publication date: April 15, 2010
    Applicant: KAO CORPORATION
    Inventors: Shinobu Nagase, Masakazu Yamaguchi
  • Publication number: 20100027244
    Abstract: A fluorescent lamp has a glass container that has a phosphor layer formed on an inner surface of the glass container, and that is hermetically sealed, wherein phosphors of the phosphor layer include a blue phosphor, a green phosphor, and a red phosphor, a main luminescence peak of the blue phosphor exists in a wavelength region in a range of 430 nm to 460 nm inclusive, a half-value width of a spectrum of the main luminescence peak of the blue phosphor is less than or equal to 50 nm, a main luminescence peak of the green phosphor exists in a wavelength region in a range of 510 nm to 530 nm inclusive, a half-value width of a spectrum of the main luminescence peak of the green phosphor is less than or equal to 30 nm, and a main luminescence peak of the red phosphor exists in a wavelength region in a range of 600 nm to 780 nm inclusive, and a difference between a wavelength of the main luminescence peak of the blue phosphor and a wavelength of the main luminescence peak of the green phosphor is in a range of 70 n
    Type: Application
    Filed: January 31, 2008
    Publication date: February 4, 2010
    Inventors: Hideki Wada, Kazuhiro Matsuo, Toshihiro Terada, Yoshinari Fuchida, Masakazu Yamaguchi, Ryo Minamihata, Mitsuharu Kawasaki, Kazuhiro Kumada, Hiroshi Sakurai, Shigeru Ido, Masanobu Murakami, Taku Ikeda
  • Patent number: 7651538
    Abstract: A hair dye composition containing an azo dye (1) or a salt thereof, (wherein R1 to R4 represents H, aliphatic hydrocarbon group, aryl group, halogen atom, acyl group, cyano group, acylamino group, or the like, wherein R1 and R2, and/or R3 and R4 may be coupled to form a 5- or 6-membered ring; X represents C or N, with the proviso that when X represents C, n stands for 1, and when X represents N, n stands for 0; A1, A2, A3 and A4 each represents N or represents C substituted by Y or having H, with the proviso that at least one of A1, A2, A3 and A4 is a nitrogen atom; and Y represents a substituent with the proviso that m stands for an integer from 0 to 3).
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: January 26, 2010
    Assignees: Kao Corporation, Fujifilm Corporation
    Inventors: Masakazu Yamaguchi, Dominic Pratt, Yasuhiro Ishiwata
  • Patent number: RE47198
    Abstract: A power semiconductor device includes trenches disposed in a first base layer of a first conductivity type at intervals to partition main and dummy cells, at a position remote from a collector layer of a second conductivity type. In the main cell, a second base layer of the second conductivity type, and an emitter layer of the first conductivity type are disposed. In the dummy cell, a buffer layer of the second conductivity type is disposed. A gate electrode is disposed, through a gate insulating film, in a trench adjacent to the main cell. A buffer resistor having an infinitely large resistance value is inserted between the buffer layer and emitter electrode. The dummy cell is provided with an inhibiting structure to reduce carriers of the second conductivity type to flow to and accumulate in the buffer layer from the collector layer.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: January 8, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masakazu Yamaguchi, Hideaki Ninomiya, Ichiro Omura, Tomoki Inoue
  • Patent number: RE47641
    Abstract: A semiconductor device includes a first-conductivity-type semiconductor layer which includes a cell region portion and a junction terminating region portion. The junction terminating region portion is a region portion which is positioned in an outer periphery of the cell region portion to maintain a breakdown voltage by extending a depletion layer to attenuate an electric field.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: October 8, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masakazu Yamaguchi, Wataru Saito, Ichiro Omura, Masaru Izumisawa