Patents by Inventor Masahiro Hasegawa

Masahiro Hasegawa 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: 20190293997
    Abstract: The liquid crystal display panel includes: a first polarizing plate; a first ?/4 plate: a first substrate; a second ?/4 plate; a liquid crystal layer; a second substrate, and a second polarizing plate, wherein the first substrate includes a black matrix, and a photo spacer overlapping with the black matrix, liquid crystal molecules in the liquid crystal layer homogeneously align with no voltage application, the second ?/4 plate is made of a self-assembling photo alignment material containing a photo functional group capable of causing at least one chemical reaction selected from the group consisting of photodimerization, photoisomerization, and photo-Fries rearrangement, and covers a side surface of the photo spacer, and the in-plane slow axis of the first ?/4 plate forms an angle of 45° with the transmission axis of the first polarizing plate and is orthogonal to the in-plane slow axis of the second ?/4 plate.
    Type: Application
    Filed: May 16, 2017
    Publication date: September 26, 2019
    Inventors: YUICHI KAWAHIRA, AKIRA SAKAI, KOZO NAKAMURA, MASAHIRO HASEGAWA, TAKAKO KOIDE, KOJI MURATA, KIYOSHI MINOURA
  • Publication number: 20190285924
    Abstract: The present invention provides a liquid crystal display device configured to prevent impurities in a retardation layer in a liquid crystal cell from dissolving into a liquid crystal layer, achieving excellent reliability. The liquid crystal display device including, in the following order from a viewing surface side toward a back surface side: a first polarizing plate; a first ?/4 retardation layer; a supporting substrate; a second ?/4 retardation layer; a first overcoat layer; an alignment film; a liquid crystal layer containing liquid crystal molecules horizontally aligned with no voltage applied; a TFT substrate including a pair of electrodes configured to generate a transverse electric field in the liquid crystal layer upon voltage application; and a second polarizing plate.
    Type: Application
    Filed: March 8, 2019
    Publication date: September 19, 2019
    Inventors: TAKAKO KOIDE, AKIRA SAKAI, MASAHIRO HASEGAWA, YUICHI KAWAHIRA, KOJI MURATA, KIYOSHI MINOURA
  • Publication number: 20190278010
    Abstract: A circularly polarizing plate includes: a first retardation layer having negative refractive index anisotropy; a second retardation layer having positive refractive index anisotropy; and a linear polarizer, the first retardation layer and the second retardation layer being disposed such that their optical axes are parallel to each other, the first retardation layer providing an in-plane retardation whose absolute value is |R1(?)| to light having a wavelength of ? nm, the second retardation layer providing an in-plane retardation whose absolute value is |R2(?)| to light having a wavelength of ? nm, the first retardation layer and the second retardation layer satisfying the following formulas (1) to (4): |R1(450)|>|R1(550)|>|R1(650)|??(1) |R2(550)|>|R1(550)|??(2) |R2(550)|?|R1(550)|>|R2(450)|?|R1(450)|??(3) |R2(650)|?|R1(650)|>|R2(550)|?|R1(550)|??(4)
    Type: Application
    Filed: March 4, 2019
    Publication date: September 12, 2019
    Inventors: AKIRA SAKAI, MASAHIRO HASEGAWA, KOJI MURATA, YUICHI KAWAHIRA, TAKAKO KOIDE, KIYOSHI MINOURA
  • Publication number: 20190219871
    Abstract: The liquid crystal display panel includes: a first polarizing plate; a first ?/4 plate; a first substrate; a second ?/4 plate; a liquid crystal layer; a second substrate; and a second polarizing plate, wherein the first substrate includes a black matrix but no photo spacer, the second substrate includes a photo spacer overlapping with the black matrix, liquid crystal molecules in the liquid crystal layer homogeneously align with no voltage application, the second ?/4 plate covers no side surface of the photo spacer, and the in-plane slow axis of the first ?/4 plate forms an angle of 45° with the transmission axis of the first polarizing plate and is orthogonal to the in-plane slow axis of the second ?/4 plate.
    Type: Application
    Filed: May 16, 2017
    Publication date: July 18, 2019
    Inventors: YUICHI KAWAHIRA, AKIRA SAKAI, KOZO NAKAMURA, MASAHIRO HASEGAWA, TAKAKO KOIDE, KOJI MURATA, KIYOSHI MINOURA
  • Patent number: 10338314
    Abstract: An optical fiber cutting apparatus includes a body portion on which an optical fiber is mounted, a cover member that is rotatably connected to the body portion and fixes the optical fiber between the body portion and the cover member by rotating toward the body portion, a blade member configured to form a flaw on a glass fiber portion of the optical fiber which is fixed, and a holding member mounted on the body portion, the holding member configured to hold the blade member. The cover member presses the holding member and thereby the blade member imparts an arc movement to form the flaw on the glass fiber portion.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: July 2, 2019
    Assignee: SEI OPTIFRONTIER CO., LTD.
    Inventors: Shinsuke Kurino, Hiroshi Takayanagi, Yoshiyuki Nishizawa, Masahiro Hasegawa
  • Publication number: 20190171052
    Abstract: A liquid crystal display panel of the present invention includes, sequentially from the viewer side: a first linearly polarizing plate; a first ?/4-wavelength layer; a first substrate including a color filter, a black matrix, and a second ?/4-wavelength layer; a liquid crystal layer; a second substrate; and a second linearly polarizing plate, the liquid crystal display panel further including a sealing material disposed so as to surround the liquid crystal layer in a plan view, wherein the second ?/4-wavelength layer is disposed closer to the liquid crystal layer than the color filter and the black matrix are and such that an outer edge of the second ?/4-wavelength layer lies inside an arrangement region of the sealing material, and the first ?/4-wavelength layer and the second ?/4-wavelength layer are disposed such that their slow axes are perpendicular to each other.
    Type: Application
    Filed: July 28, 2017
    Publication date: June 6, 2019
    Inventors: MASAHIRO HASEGAWA, KOJI MURATA, YUICHI KAWAHIRA, TAKAKO KOIDE, KOZO NAKAMURA, AKIRA SAKAI, KIYOSHI MINOURA
  • Publication number: 20190163004
    Abstract: The liquid crystal display panel includes in the following order from a viewing surface side to a back surface side: a first polarizer; a first ?/4 retardation layer; a first substrate; a second ?/4 retardation layer; a liquid crystal layer; a second substrate; and a second polarizer, the liquid crystal display panel being in a transverse electric field mode, the first substrate including a color filter layer in a display region, the second ?/4 retardation layer being a single layer covering the color filter layer and including a first retardation portion in an end region of the display region and a second retardation portion in a central region of the display region, the first retardation portion having a greater thickness than the second retardation portion, and the first retardation portion and the second retardation portion differing from each other in in-plane retardation by 10 nm or less.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 30, 2019
    Inventors: YUICHI KAWAHIRA, KIYOSHI MINOURA, AKIRA SAKAI, TAKAKO KOIDE, MASAHIRO HASEGAWA, KOJI MURATA
  • Publication number: 20190155082
    Abstract: The liquid crystal display panel includes: a first polarizing plate; a first retardation provision portion including a first ?/4 plate; a first substrate; a second retardation provision portion including a second ?/4 plate; a liquid crystal layer containing nematic liquid crystal; a second substrate; and a second polarizing plate. One of the first substrate and the second substrate includes a pair of electrodes configured to generate a horizontal electric field at the liquid crystal layer upon voltage application. The nematic liquid crystal homogeneously aligns with no voltage application between the electrodes. One of the first retardation provision portion and the second retardation provision portion includes, on the first substrate side, a first retarder. The in-plane slow axis of the first ?/4 plate forms an angle of 45° with the absorption axis of the first polarizing plate and is orthogonal to the in-plane slow axis of the second ?/4 plate.
    Type: Application
    Filed: April 7, 2017
    Publication date: May 23, 2019
    Inventors: AKIRA SAKAI, MASAHIRO HASEGAWA, TAKAKO KOIDE, KOZO NAKAMURA, KIYOSHI MINOURA, YUICHI KAWAHIRA, KOJI MURATA
  • Publication number: 20190121005
    Abstract: The size of a device can be decreased, a foreign substance is inhibited from being seen in a captured image, and more than one kind of image, that is, a visible-light image and a near-infrared-light image can be captured singly by the device. An imaging device includes an imaging element that captures an image of an object formed by light that passes through an optical system, and a signal-reading portion that reads an image signal from the imaging element, and a filter portion that is disposed on an optical axis of the optical system. The filter portion includes a visible-light-shielding portion that obstructs visible light, and a near-infrared-light-shielding portion that obstructs near-infrared light. The position of the filter portion relative to the imaging element is fixed.
    Type: Application
    Filed: March 16, 2017
    Publication date: April 25, 2019
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: MASAHIRO HASEGAWA
  • Patent number: 10269305
    Abstract: The present invention provides a mirror display that has improved design aesthetics and makes it possible to sufficiently improve visibility in mirror mode in dark environments. The mirror display according to the present invention includes a half mirror plate having a half mirror layer, a display device, a case, and an auxiliary illumination unit that includes an auxiliary light source. The case supports at least the half mirror plate and the display device and includes an outer frame that covers an edge of a front surface of the half mirror plate when viewed in a plan view from a viewing side. The display device is arranged on a rear side of the half mirror plate. The auxiliary light source is arranged on the rear side of the half mirror plate, the display device, or the outer frame. The auxiliary illumination unit is controlled separately from the display device and emits light towards the viewing side when the mirror display is in mirror mode.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: April 23, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masahiro Hasegawa, Hiroyuki Hakoi, Akira Sakai, Hidefumi Yoshida, Takaharu Kanai, Takako Shimizu, Yuuki Itou, Atsushi Ogawa, Akira Tsuruta, Takayuki Yuasa, Shigeaki Mizushima
  • Patent number: 10254455
    Abstract: The present invention provides a mirror display that enables simultaneous perception of a mirror image and an image with suppressed uncomfortable feeling. The mirror display of the present invention includes a half mirror plate including a half mirror layer, and a display device. The display device is disposed on the back surface side of the half mirror plate. The distance between a display surface of the display device and a display surface of the half mirror plate is not smaller than 100 mm. The half mirror layer preferably includes a reflective polarizer.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: April 9, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sakai, Masahiro Hasegawa, Hiroyuki Hakoi, Kiyoshi Minoura
  • Publication number: 20190094593
    Abstract: Provided is a liquid crystal module being excellent in durability and manufacturing cost and exhibiting reduced variations in peak luminance that are caused depending on an azimuth angle during black display when the polar angle is large. The liquid crystal module includes: a liquid crystal panel including a first polarizer, a first substrate, a liquid crystal layer, an in-cell retardation layer (?/4 plate of nx>ny=nz), a second substrate, an out-cell retardation layer (?/4 plate of nx>ny?nz), and a second polarizer, from a back side toward an observation side; and a backlight. The backlight includes a first prism sheet including a first ridge line, and a second prism sheet provided on a back side from the first prism sheet and including a second ridge line orthogonal to the first ridge line. The first ridge line is parallel to an azimuth at which the liquid crystal panel has a maximized transmittance in an oblique direction during black display.
    Type: Application
    Filed: September 28, 2018
    Publication date: March 28, 2019
    Inventors: MASAHIRO HASEGAWA, KOJI MURATA, YUICHI KAWAHIRA, TAKAKO KOIDE, AKIRA SAKAI, KIYOSHI MINOURA
  • Patent number: 10234727
    Abstract: The present invention provides a mirror display that can be enlarged without quality deterioration. The mirror display includes, in the order from a viewing surface side, a half mirror plate including a reflective polarizer, a polarization conversion layer, and a display device including an absorptive polarizer on a side of the polarization conversion layer. The reflective polarizer includes a transmission axis parallel to the longitudinal direction of the display device and is jointless. The absorptive polarizer includes a transmission axis perpendicular to the longitudinal direction of the display device and is jointless. The polarization conversion layer is configured to convert the polarization of polarized light passed through the absorptive polarizer.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: March 19, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sakai, Hiroyuki Hakoi, Masahiro Hasegawa, Kiyoshi Minoura
  • Patent number: 10236459
    Abstract: Disclosed is a display device including: a display panel 40 including an element substrate 20 having a first resin substrate 10a over which a first underlayer film 11a and a plurality of switching elements are provided, and a counter substrate 30 having a second resin substrate 10b on which a second underlayer film 11b is provided; and a functional sheet 45 bonded to a surface, of the display panel 40, close to the counter substrate 30. The display device has a curved portion C in which the display panel 40 is able to be curved at a predetermined radius of curvature, and a pair of flat portions between which the curved portion C is interposed and a predetermined angle is formed, and in which the display panel 40 is held flatly. The functional sheet 45 is bonded such that the curved portion C is able to be maintained at the predetermined radius of curvature.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: March 19, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masahiro Hasegawa, Yuki Yasuda, Takashi Ochi, Hiroshi Sugimoto, Shoji Okazaki, Kenji Misono
  • Publication number: 20190064440
    Abstract: An optical fiber cutter 1 includes a cutter base body 3, a slider 7 movably provided on the cutter base body 3, a blade member 23 provided on the slider 7, an object 30 to be detected provided on either one of the cutter base body 3 and the slider 7, a sensor 32 provided on the other of the cutter base body 3 and the slider 7 and detecting the object 30 to be detected, a controller 34 that, on the basis of the detection results of the sensor 32, calculates the number of movements of the slider 7 to a predetermined position and stores the calculated number, and a display unit 36 that displays the number of movements of the slider 7 to the predetermined position calculated by the controller 34.
    Type: Application
    Filed: January 30, 2017
    Publication date: February 28, 2019
    Applicant: SEI Optifrontier Co., Ltd.
    Inventors: Tsuyoshi TADA, Masahiro HASEGAWA, Yoshiyuki NISHIZAWA
  • Patent number: 10203122
    Abstract: An air-conditioning and ventilation apparatus includes an air-conditioning coil that is installed on a downstream side of a heat exchanger in a supply air trunk and changes cooling capacity with respect to heat-exchanged outdoor air in multiple stages; an outdoor-air temperature and humidity sensor that detects temperature and relative humidity of the outdoor air; and a control unit that stores therein reference data in which the cooling capacity is set for each combination of temperature and relative humidity of the outdoor air such that absolute humidity of supply air becomes equal to or lower than indoor target absolute humidity on the basis of a dehumidification load corresponding to an absolute humidity difference between indoors and outdoors, and determines a cooling capacity value of the air-conditioning coil on the basis of detection results during a cooling operation by the outdoor-air temperature and humidity sensor and the reference data.
    Type: Grant
    Filed: July 4, 2014
    Date of Patent: February 12, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masahiro Hasegawa, Masami Yasuda, Hidemoto Arai
  • Patent number: 10180594
    Abstract: The present invention provides a mirror display that can suppress warp of a half mirror plate with a reflective polarizer under heat to prevent distortion of a reflected image in a mirror mode. The mirror display of the present invention includes a half mirror plate that includes a first reflective polarizer and a first base material, a display device, and a warp-suppressing member that suppresses shrinking of the first reflective polarizer under heat. The first reflective polarizer and the first base material are integrated, and the display device is disposed on the back surface side of the half mirror plate.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: January 15, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Hakoi, Masahiro Hasegawa, Akira Sakai, Kiyoshi Minoura
  • Patent number: 10175519
    Abstract: One aspect of the present invention provides a touch panel-equipped mirror display that can reduce distortion and ghosting in mirror images while also reducing the rainbow effect in displayed images. The touch panel-equipped mirror display according to one aspect of the present invention includes, in order from a rear side: a display device that includes a polarizer; a touch panel; and a mirror plate that includes a reflective polarizer and a substrate, wherein the reflective polarizer and the substrate are fixed together, and wherein the touch panel does not create a phase difference in light. It is preferable that the substrate be a glass substrate with a thickness of greater than or equal to 0.1 mm and less than or equal to 0.4 mm.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: January 8, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masahiro Hasegawa, Hiroyuki Hakoi, Akira Sakai, Kiyoshi Minoura
  • Publication number: 20180348553
    Abstract: A liquid crystal display device includes a transmissive region and a reflective region, and includes a backlight unit and a liquid crystal display panel including a first substrate, a first alignment film, a liquid crystal layer containing liquid crystal molecules having positive anisotropy of dielectric constant, a second alignment film, and a second substrate in the given order from closest to farthest from the backlight unit, the first substrate including a first electrode disposed in the transmissive region and the reflective region and a second electrode disposed in the transmissive region, the first substrate or the second substrate including a third electrode disposed in the reflective region, the first electrode including one or more first linear electrode portions in the transmissive region, with no voltage applied to the liquid crystal layer, the liquid crystal molecules in the transmissive region forming a given twist angle ?1, the liquid crystal molecules in the reflective region forming a given t
    Type: Application
    Filed: November 30, 2016
    Publication date: December 6, 2018
    Inventors: TAKAKO KOIDE, KIYOSHI MINOURA, KOZO NAKAMURA, AKIRA SAKAI, MASAHIRO HASEGAWA
  • Patent number: 10148942
    Abstract: A mirror display system that enables simultaneous perception of a mirror image and a video image with suppressed uncomfortable feeling includes a half mirror plate including a half mirror layer; a 3D display device; and a control unit being configured to supply a video signal to the 3D display device. The 3D display device is disposed on the back surface side of the half mirror plate and is configured to display, by the video signal, a video image for the left eye and a video image for the right eye that give a parallax on a display surface of the 3D display device. The parallax is set such that a fused video image of the video image for the left eye and the video image for the right eye is perceived on the back surface side behind the display surface of the 3D display device.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: December 4, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akira Sakai, Masahiro Hasegawa, Hiroyuki Hakoi, Kiyoshi Minoura