Patents by Inventor Masakazu Hirata

Masakazu Hirata 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: 10886335
    Abstract: There is provided an imaging device including an upper electrode; a lower electrode; a photoelectric conversion layer disposed between the upper electrode and the lower electrode; and a first organic semiconductor material including an indolocarbazole derivative and disposed between the upper electrode and the lower electrode. Further, there is provided an electronic apparatus including an imaging device that includes an upper electrode; a lower electrode; a photoelectric conversion layer disposed between the upper electrode and the lower electrode; and a first organic semiconductor material including an indolocarbazole derivative and disposed between the upper electrode and the lower electrode.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: January 5, 2021
    Assignee: Sony Corporation
    Inventors: Yasuharu Ujiie, Masakazu Muroyama, Masashi Bando, Masaki Murata, Hideyuki Kumita, Sachiko Sakaigawa, Shintarou Hirata, Yuya Kumagai, Yu Kato
  • Patent number: 10814630
    Abstract: Provided herein are a jet hole plate, a liquid jet head, a liquid jet recording apparatus, and a method for manufacturing a jet hole plate that can achieve a long life. A jet hole plate according to an embodiment of the present disclosure is a jet hole plate for use in a liquid jet head. The jet hole plate includes a metal substrate having provided therein a plurality of jet holes. The metal substrate has a principal surface having outlets for the jet holes. The principal surface has a surface roughness (arithmetic mean roughness Ra) that is smaller in outlet edge regions of the jet holes than in surrounding regions around the outlet edge regions.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: October 27, 2020
    Assignee: SII PRINTEK INC.
    Inventors: Masakazu Hirata, Kenji Takano, Tomoki Sodetai
  • Patent number: 10710366
    Abstract: Provided herein are a jet hole plate, a liquid jet head, and a liquid jet recording apparatus that can achieve a long life. A jet hole plate according to an embodiment of the present disclosure is a jet hole plate for use in a liquid jet head. The jet hole plate includes a metal substrate provided with a plurality of jet holes. In the metal substrate, an average crystal grain size in outlet edges of the jet holes is smaller than that in surrounding regions around the outlet edges.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: July 14, 2020
    Assignee: SII Printek Inc.
    Inventors: Masakazu Hirata, Kenji Takano, Emiko Osaka
  • Patent number: 10677704
    Abstract: A system for analyzing a CO2 concentration of an amine-based absorbing solution includes a measurement apparatus that measures a viscosity of the amine-based absorbing solution and at least one selected from conductivity and ultrasonic propagation velocity of the amine-based absorbing solution, wherein the amine-based absorbing solution absorbs and removes CO2 from a target gas by gas-liquid contact with the target gas; and a controller that determines the CO2 concentration of the amine-based absorbing solution from results measured by the measurement apparatus.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: June 9, 2020
    Assignee: Mitsubishi Heavy Industries Engineering, Ltd.
    Inventors: Takuya Hirata, Masakazu Sakaguchi, Tatsuya Tsujiuchi, Hiroshi Tanaka
  • Patent number: 10671046
    Abstract: A numerical control device is for machining a machining object by moving a tool and the machining object relative to each other along a movement path while applying vibration, by use of a drive axis provided for the tool or the machining object. The device includes a storage unit that holds an invalid frequency region, and a vibration condition determining unit to determine a frequency for the vibration, based on a rotational speed of a main shaft for rotating the machining object, a number of vibrations of the vibration in each one rotation of the main shaft, and the invalid frequency region.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: June 2, 2020
    Assignees: Mitsubishi Electric Corporation, CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.
    Inventors: Mitsuo Watanabe, Masakazu Sagasaki, Hitoshi Matsumoto, Takanori Shinohara, Kazuhiko Sannomiya, Yuki Hirata
  • Patent number: 10625355
    Abstract: A numerical control apparatus includes: a drive unit controlling a main shaft rotating a workpiece, a first drive shaft feeding a cutting tool relatively to the workpiece along a perpendicular direction to a lead direction of a thread, and a second drive shaft feeding the cutting tool relatively to the workpiece along the lead direction; and a vibration unit superimposing, on movement of the first drive shaft, vibration having a period having a predetermined ratio with a rotation period of the main shaft, and forms a thread on the workpiece by moving the cutting tool and the workpiece relative to each other and performing cut processes on the workpiece. The numerical control apparatus includes a thread-cutting vibration adjustment unit controlling the drive unit to shift phase of the vibration with respect to phase of the main shaft by a predetermined vibration phase shift amount every time in the cut processes.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: April 21, 2020
    Assignees: Mitsubishi Electric Corporation, CITIZEN WATCH CO., LTD, CITIZEN MACHINERY CO., LTD.
    Inventors: Mitsuo Watanabe, Masakazu Sagasaki, Yuki Hirata, Kazuhiko Sannomiya, Takaichi Nakaya
  • Publication number: 20190288040
    Abstract: There is provided an imaging device including an upper electrode; a lower electrode; a photoelectric conversion layer disposed between the upper electrode and the lower electrode; and a first organic semiconductor material including an indolocarbazole derivative and disposed between the upper electrode and the lower electrode. Further, there is provided an electronic apparatus including an imaging device that includes an upper electrode; a lower electrode; a photoelectric conversion layer disposed between the upper electrode and the lower electrode; and a first organic semiconductor material including an indolocarbazole derivative and disposed between the upper electrode and the lower electrode.
    Type: Application
    Filed: November 17, 2017
    Publication date: September 19, 2019
    Applicant: SONY CORPORATION
    Inventors: Yasuharu UJIIE, Masakazu MUROYAMA, Masashi BANDO, Masaki MURATA, Hideyuki KUMITA, Sachiko SAKAIGAWA, Shintarou HIRATA, Yuya KUMAGAI, Yu KATO
  • Publication number: 20190143686
    Abstract: Provided herein are a jet hole plate, a liquid jet head, and a liquid jet recording apparatus that can achieve a long life. A jet hole plate according to an embodiment of the present disclosure is a jet hole plate for use in a liquid jet head. The jet hole plate includes a metal substrate provided with a plurality of jet holes. In the metal substrate, an average crystal grain size in outlet edges of the jet holes is smaller than that in surrounding regions around the outlet edges.
    Type: Application
    Filed: November 13, 2018
    Publication date: May 16, 2019
    Inventors: Masakazu HIRATA, Kenji TAKANO, Emiko OSAKA
  • Publication number: 20190143693
    Abstract: Provided herein is a method for manufacturing a jet hole plate that can improve ejection stability and head durability. A method for manufacturing a jet hole plate according to an embodiment of the present disclosure includes a punching step of pressing a first principal surface of a metal substrate with a punch to form an indentation in the first principal surface, and to form a raised portion in a second principal surface of the metal substrate at a position opposite to the indentation; a first polishing step of removing the raised portion by mechanical polishing to penetrate the metal substrate at the indentation to thereby form a jet hole; and a second polishing step of polishing at least one of the first principal surface and the second principal surface of the metal substrate by chemical polishing, electrolytic polishing, or chemical-mechanical polishing.
    Type: Application
    Filed: November 13, 2018
    Publication date: May 16, 2019
    Inventors: Emiko OSAKA, Masakazu HIRATA, Shutaro YAMAMOTO, Kenji TAKANO, Takashi HITOMI
  • Publication number: 20190143692
    Abstract: Provided herein are a jet hole plate, a liquid jet head, a liquid jet recording apparatus, and a method for manufacturing a jet hole plate that can achieve a long life. A jet hole plate according to an embodiment of the present disclosure is a jet hole plate for use in a liquid jet head. The jet hole plate includes a metal substrate having provided therein a plurality of jet holes. The metal substrate has a principal surface having outlets for the jet holes. The principal surface has a surface roughness (arithmetic mean roughness Ra) that is smaller in outlet edge regions of the jet holes than in surrounding regions around the outlet edge regions.
    Type: Application
    Filed: November 13, 2018
    Publication date: May 16, 2019
    Inventors: Masakazu HIRATA, Kenji TAKANO, Tomoki SODETAI
  • Patent number: 8982494
    Abstract: A head gimbal assembly has a suspension configured to extend along a surface of a recording medium and to bend and deform in a thickness direction of the recording medium. A slider is provided on a front end side of the suspension so as to confront the surface of the recording medium. A support section supports the slider such that the slider can pivot about two axes parallel to the surface of the recording medium and perpendicular to each other. An optical waveguide is connected to the slider and is configured to introduce a light flux into the slider. A near-field light generating element generates near-field light from the optical flux and causes the near-field light to record information on the recording medium. A positioning section is mounted between the support section and the slider for positioning the optical waveguide relative to the slider.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: March 17, 2015
    Assignee: Seiko Instruments Inc.
    Inventors: Masakazu Hirata, Manabu Oumi, Majung Park, Sachiko Tanabe
  • Patent number: 8945733
    Abstract: A magnetic recording medium in which information can be recorded using a heat-assisted magnetic recording method comprises a recording layer formed on a substrate. The recording layer has a plurality of magnetic recording bit regions and a plurality of high thermal conductors each extending inside a corresponding one of the bit regions. The high thermal conductors have a thermal conductivity higher than that of the recording layer and assist in dissipating heat energy imparted to the bit regions during the recording of information.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: February 3, 2015
    Assignee: Seiko Instruments Inc.
    Inventors: Yoshikazu Tanaka, Norio Chiba, Manabu Oumi, Masakazu Hirata, Yoko Shinohara, Sachiko Tanabe
  • Patent number: 8905805
    Abstract: A U-shaped groove and a V-shaped groove are formed onto a cladding disposed on a substrate, a core and a metal structure are formed inside the grooves, respectively, and then the substrate surface is planarized. Further, after a cladding is formed again, the substrate is cut and the cut surface is polished such that the metal structure inside the V-shaped groove has a predetermined thickness, thereby forming a scattering body.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: December 9, 2014
    Assignee: Seiko Instruments Inc.
    Inventors: Yoko Shinohara, Norio Chiba, Manabu Oumi, Masakazu Hirata, Sachiko Tanabe, Yoshikazu Tanaka
  • Patent number: 8842504
    Abstract: A near-field light head of the present invention includes: a slider disposed opposite to a surface of the magnetic recording medium; a recording element that includes a main magnetic pole generating the recording magnetic field and a subsidiary magnetic pole, the recording element being fixed to an apical surface of the slider so that the main magnetic pole and the subsidiary magnetic pole line up in a longitudinal direction of the slider in the state where the subsidiary magnetic pole is located at the apical surface of the slider; a near-field light generating element, fixed adjacently to the main magnetic pole in a state where another end side thereof is directed to the magnetic recording medium, that propagates the light flux introduced from one end side thereof toward the other end side to generate the near-field light, and radiates the near-field light from the other end side to the outside; and a light flux introducing device, fixed to the slider, that introduces the light flux from the one end side in
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: September 23, 2014
    Assignee: Seiko Instruments Inc.
    Inventors: Masakazu Hirata, Manabu Oumi, Majung Park
  • Patent number: 8787127
    Abstract: A near-field light generating element has a core that propagates light flux from a light incident side to a light emission side while focusing the propagating light flux. A near-field light generating portion in the form of a metal film generates near-field light from the light flux. The core includes a first core, and a second core covering a side surface of the first core, and the core is formed in a polygonal shape when viewed from a Z direction. The metal film is placed on a side surface in the core, and is formed so that a width of an interface between the metal film and the core is narrower than a width of the side surface of the core.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: July 22, 2014
    Assignee: Seiko Instruments Inc.
    Inventors: Masakazu Hirata, Norio Chiba, Manabu Oumi, Yoko Shinohara, Sachiko Tanabe, Yoshikazu Tanaka
  • Patent number: 8755255
    Abstract: A method of manufacturing a near-field light generating element includes a first cladding forming process of forming a first cladding on a substrate, a near-field light generation portion forming process of forming a metal film base material on the first cladding, a core forming process of forming a core base material so as to cover the metal film base material, a single patterning process of collectively patterning the core base material and the metal film base material to form the core and the metal film, respectively, and a second cladding forming process of forming a second cladding so as to interpose the core between the second cladding and the first cladding.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: June 17, 2014
    Assignee: Seiko Instruments Inc.
    Inventors: Masakazu Hirata, Manabu Oumi
  • Patent number: 8599654
    Abstract: A head gimbal assembly has a flexure forming a part of a suspension configured to extend along a surface of a recording medium. A flexible substrate is provided on the flexure. A slider is mounted onto at least a part of the flexible substrate so as to oppose the surface of the recording medium, and is configured to generate near field light from an introduced light flux. A light supply portion is mounted on the flexure and is provided between the flexure and the slider. The flexible substrate has an end surface forming a mirror surface that faces an end surface of the light supply portion and is inclined with respect to an optical axis of the light supply portion. The light supply portion is optically coupled to the slider via the mirror surface of the flexible substrate.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: December 3, 2013
    Assignee: Seiko Instruments Inc.
    Inventors: Masakazu Hirata, Manabu Oumi, Norio Chiba, Sachiko Tanabe, Yoko Shinohara
  • Patent number: 8542559
    Abstract: An information recording and reproduction apparatus has a magnetic recording medium and a carriage that undergoes rotational movement about a pivot shaft and has a base portion and an arm portion extending from the base portion and along a surface of the medium. A light source that emits a light beam to heat the medium is mounted on the base portion and is disposed closer to the pivot shaft than the arm portion. The arm portion supports a slider confronting the surface of the medium and being configured to receive a light beam from the light source. The slider has an optical system which condenses the light beam and a spot light generating element which generates from the condensed light beam spot light that heats the medium for recording information on the medium while causing magnetization reversal by applying a recording magnetic field to the medium.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: September 24, 2013
    Assignee: Seiko Instruments Inc.
    Inventors: Masakazu Hirata, Manabu Oumi, Mizuaki Suzuki, Majung Park
  • Patent number: D784735
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: April 25, 2017
    Assignees: FUJI ELECTRIC CO., LTD., SEVEN-ELEVEN JAPAN CO., LTD.
    Inventor: Masakazu Hirata
  • Patent number: D860705
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: September 24, 2019
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Masakazu Hirata, Takayuki Tsutsui, Hiroyuki Toyoda