Patents by Inventor Yoshiho Seo

Yoshiho Seo 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: 20190167229
    Abstract: An ultrasound imaging probe capable of securing an assembly accuracy of and improving a resolution performance of an obtained image is provided. A photoacoustic catheter includes: a silicon substrate which includes an ultrasonic transducer for detecting an ultrasonic wave formed thereon and a through hole passing through front and rear surfaces; an optical fiber which oscillates a laser; a lens which condenses the laser and is arranged within the through hole; a tubular housing; a glass cover which covers the lens; and a resin which fills a gap between the through hole and the lens. Further, the silicon substrate and the optical fiber are fixed to a part of the housing in the housing.
    Type: Application
    Filed: December 4, 2018
    Publication date: June 6, 2019
    Applicant: HITACHI, LTD.
    Inventors: Taiichi TAKEZAKI, Shuntaro MACHIDA, Hiroaki HASEGAWA, Tomohiko TANAKA, Ryo IMAI, Yoshiho SEO, Takahiro MATSUDA, Shinsuke ONOE
  • Patent number: 10304369
    Abstract: An image display device includes: a light source configured to change the amount of light, depending on a driving current; and a control unit configured to, when a change is made from a first gradation value to a second gradation value, control the driving current at the second gradation value, depending on a time period for which the first gradation value is set.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: May 28, 2019
    Assignee: Hitachi-LG Data Storage, Inc.
    Inventors: Ryuji Ukai, Yoshiho Seo, Yuya Ogi
  • Publication number: 20190068959
    Abstract: According to the present invention, in an image display device that displays two images in parallel, a peak current for light source driving and continuation of a peak current are suppressed without reducing luminance of a display image. An image display device includes a light source unit, two panel units, and a timing control unit. A period of one frame of an image displayed by each panel unit has a standby period in which the panel unit is not illuminated by the light source unit for image generation and a lighting period in which the panel unit is illuminated by the light source unit. The timing control unit controls an operation timing such that the periods of one frame of the images displayed by the respective panel units overlap, and frame start times of the periods are shifted from each other by a predetermined delay time.
    Type: Application
    Filed: August 9, 2018
    Publication date: February 28, 2019
    Inventors: Ryuji UKAI, Yoshiho SEO
  • Patent number: 10194124
    Abstract: A projection type video display device includes a video projecting unit that displays a video by projecting the video onto a video projection plane, sensors and that detect an operator who operates the projection type video display device, operation detecting units and that detect a motion of the operator based on outputs of the sensors, and a control unit that controls the video projecting unit based on a detection result of the operation detecting unit. Preferably, a sensing area in which detections by the sensors are performed when a direction of the video projection plane is vertical and is set to differ from that when the direction of the video projection plane is horizontal.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: January 29, 2019
    Assignee: MAXELL, LTD.
    Inventors: Sakiko Narikawa, Naoki Mori, Takashi Matsubara, Yoshiho Seo, Shoji Yamamoto
  • Patent number: 10187606
    Abstract: The objective of the invention is to enhance the convenience of image pickup apparatus, while protecting contents in an environment of viewing the contents. An image pickup apparatus is characterized in that the image pickup apparatus comprises: an image information acquisition unit that acquires image information generated by photoelectric conversion; an image storage processing unit that generates an image file on the basis of the acquired image information and that causes the image file to be stored on a storage medium; and a control unit that performs control to provide a state in which the acquisition of the image information is possible and the storage of the image file is restricted.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: January 22, 2019
    Assignee: Maxell, Ltd.
    Inventors: Yuya Ogi, Satoshi Ouchi, Yoshiho Seo, Toshiteru Nakamura
  • Patent number: 10187620
    Abstract: The present invention prevents image quality degradation due to pixel enlargement even when using an increased angle of inclination on projecting an image obliquely from a laser scanning display device. A swing mirror is controlled so that the scanning line density in the vertical direction of a display section is uniform in accordance with information including the angle of inclination, the distance of projection, and the display size of the display device with respect to the display section. A lens control driver is controlled so that a collecting lens has a focal point on the display section in accordance with a scanning position in the vertical direction of the swing mirror. The swing mirror or an image correction processing unit is controlled so that a display size in the horizontal direction of a display image on the display section is uniform regardless of the scanning position in the vertical direction.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: January 22, 2019
    Assignee: MAXELL, LTD.
    Inventors: Tomoki Kobori, Yoshiho Seo, Yuya Ogi, Satoshi Oouchi
  • Publication number: 20190018477
    Abstract: A terminal display device which a user wears on a user's head displays on a display unit an information object to be overlapped with a field of view of the user, detects a motion of the terminal display device, and stores a pattern of a motion of the terminal display device and an operation content of the information object that is displayed in association with each other. An information type management memory unit stores information related to a display mode of each of the information objects. A display control unit determines an operation content of the terminal display device based on the motion that is detected and an association between the motion pattern and the operation content, specifies the information object disposed at a predetermined position of the display unit, and performs an operation specified with the determined operation content on the specified information object.
    Type: Application
    Filed: July 9, 2018
    Publication date: January 17, 2019
    Inventors: Takayuki FUJIWARA, Yoshihiro MACHIDA, Yoshiho SEO, Tatsuya ISHITOBI
  • Publication number: 20190014989
    Abstract: Treatment with an acoustic catheter is disclosed. A photoacoustic catheter system includes an imaging laser beam generator that generates an imaging laser beam used for imaging; a treatment laser beam generator that generates a treatment laser beam used for treatment; a driver that provides driving to cause the imaging laser beam and the treatment laser beam to be emitted in a predetermined direction with respect to an advancing direction of a catheter; an acoustic element that receives an acoustic wave generated due to irradiation of the imaging laser beam; and a treatment laser beam controller, wherein the treatment laser beam controller synchronously emits the imaging laser beam and the treatment laser beam so as to be directionally aligned with each other.
    Type: Application
    Filed: March 16, 2018
    Publication date: January 17, 2019
    Inventors: Tomohiko TANAKA, Taiichi TAKEZAKI, Ryo IMAI, Yoshiho SEO, Takahiro MATSUDA, Shinsuke ONOE, Takeshi SAKAMOTO, Kimio TANAKA, Ryo KAWAMURA, Yoshiyuki SEYA, Yutaka WATANABE
  • Publication number: 20190004408
    Abstract: An optical mixer efficiently homogenizes light flux emitted from a plurality of light sources emitting light having different wavelengths to provide a multi-wavelength homogeneous light source. The optical mixer has a columnar shape made of a transparent material, a length of the side surfaces is larger than an outermost diameter of a top surface or a bottom surface of the columnar shape, and a large number of scattering particles scattering light contained inside the optical mixer. The side surface of the optical mixer reflects light, and the top surface and the bottom surface thereof transmit light. Thereby, a function of mixing light incident from the top or bottom surface by the reflecting function of the side surface and the scattering function of the scattering particles is provided.
    Type: Application
    Filed: February 2, 2017
    Publication date: January 3, 2019
    Inventors: Tomoto KAWAMURA, Toshiteru NAKAMURA, Seiji MURATA, Yoshiho SEO, Toshihiro KURODA, Yutaka KAWAKAMI, Daichi SAKAI, Toshiyuki TAKAIWA
  • Publication number: 20180347775
    Abstract: A solid state light source device includes N (an integer of two or more) sets of solid state light source assemblies having a plurality of solid state light source cells arranged in a matrix pattern a multiple lens block including N incidence faces facing the N sets of solid state light source assemblies and causing light emitted from the solid state light source cells to be incident through multiple lens cells of a matrix pattern and one emission face composing the light incident from the N incidence faces and a dichroic filter that is obliquely arranged on the incidence faces inside the multiple lens block and selectively reflects or transmits incident light based on the incident light wavelength. Light distribution characteristics and color temperature of light exiting the emission face of the multiple lens block are controlled by a ratio of power supplied to the solid state light source cells.
    Type: Application
    Filed: July 19, 2018
    Publication date: December 6, 2018
    Applicant: MAXELL, LTD.
    Inventors: Koji HIRATA, Yuki NAGANO, Shoji YAMAMOTO, Yoshiho SEO
  • Publication number: 20180296094
    Abstract: An object of the invention is to provide a technology for further improving scanning performance. Provided is an optical scanning device including: a scanning unit including an optical waveguide configured to guide incident light and emit the light from an emission end, and a vibration unit configured to generate a vibration and vibrate the emission end; and a signal transmission unit configured to transmit a signal to the scanning unit and cause the scanning unit to scan an object, characterized in that the scanning unit includes a first bonding and vibration attenuating unit configured to bond, with an elastic member, an end surface of the vibration unit closer to the emission end and the optical waveguide.
    Type: Application
    Filed: March 24, 2016
    Publication date: October 18, 2018
    Inventors: Toshiteru NAKAMURA, Satoshi OUCHI, Yoshiho SEO, Kouji FUJITA, Shinsuke ONOE, Kenichiro YAMADA, Tomoto KAWAMURA
  • Patent number: 10088742
    Abstract: A laser projection display system that executes, by swinging a scan mirror, scanning with laser light of multiple colors in accordance with image signals, thereby displaying an image in accordance with the image signals, includes: a timing adjustment unit that divides temporally a display period during which the image signals are displayed and a light emission period for intensity detection to detect the intensity of the laser light; a laser light source that generates the laser light of the multiple colors; a laser light source driving unit that drives the laser light source in synchronization with a signal from the timing adjustment unit; and a scan mirror driving unit including: a first scanning means that executes scanning in a first direction in response to synchronization signals according to the image signals, with laser light generated by the laser light source through the scan mirror.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: October 2, 2018
    Assignee: Hitachi-LG Data Storage, Inc.
    Inventors: Yuya Ogi, Tomoki Kobori, Yoshiho Seo
  • Patent number: 10089911
    Abstract: The purpose of the present invention is to provide a laser scanning display device capable of achieving high-resolution projection display while ensuring that the luminance and the size of the pixels are uniform to maintain the quality of the projection display. The scanning display device is configured to apply noise from a dither noise generator (21) to a horizontal scanning position on an oscillating mirror (11,12) determined by a scanning position determination unit (13); normalize the horizontal scanning position to which the noise was applied using a normalizing unit (22); acquire a pixel address corresponding to the normalized horizontal scanning position by referring to a pixel address table (23); read pixel data corresponding to the pixel address from an image memory (14); and modulate laser light by driving a light source (17) for emitting the laser light.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: October 2, 2018
    Assignee: Maxell, Ltd.
    Inventors: Tomoki Kobori, Yoshiho Seo, Yuya Ogi, Satoshi Ouchi
  • Patent number: 10078236
    Abstract: There are provided a dimmer that can solve practical problems including burn-in and easily change a transmittance to external light and a video display device using the same. A dimmer includes a stack of two or more light control layers that change a transmittance to incident light by controlling an applied voltage in the incident direction of the incident light. A video display device includes a video generator that generates picture light; a video projector that projects the picture light as a virtual image in the field of view of a user; the dimmer disposed on the opposite side of the projecting side of the video projector to the user for adjusting the light quantity of external light to be entered to a user's eye through the video projector; and a light controller that controls the dimmer suitable for the luminosity of external light detected at an external light detector.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: September 18, 2018
    Assignee: Hitachi-LG Data Storage, Inc.
    Inventors: Shingo Hayashi, Satoshi Ouchi, Yoshiho Seo, Tomoto Kawamura, Seiji Murata, Takahiro Matsuda, Toshiteru Nakamura
  • Patent number: 10054280
    Abstract: A solid state light source device includes N (an integer of two or more) sets of solid state light source assemblies having a plurality of solid state light source cells arranged in a matrix pattern a multiple lens block including N incidence faces facing the N sets of solid state light source assemblies and causing light emitted from the solid state light source cells to be incident through multiple lens cells of a matrix pattern and one emission face composing the light incident from the N incidence faces and a dichroic filter that is obliquely arranged on the incidence faces inside the multiple lens block and selectively reflects or transmits incident light based on the incident light wavelength. Light distribution characteristics and color temperature of light exiting the emission face of the multiple lens block are controlled by a ratio of power supplied to the solid state light source cells.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: August 21, 2018
    Assignee: MAXELL, LTD.
    Inventors: Koji Hirata, Yuki Nagano, Shoji Yamamoto, Yoshiho Seo
  • Patent number: 10051249
    Abstract: The laser projection display device includes: a photo-sensor for detecting the quantity of laser light generated by the laser light source; and an image processing unit for processing a drive signal on the basis of the quantity of light of the detected laser light and supplying the processed drive signal to a driving unit for the laser light source. Right after the dimming, the image processing unit supplies the drive signal to the driving unit for the laser light source on the basis of the quantity of light of the detected laser light within a second execution cycle shorter than a first execution cycle which is the execution cycle used during the normal operation.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: August 14, 2018
    Assignee: Hitachi-LG Data Storage, Inc.
    Inventors: Yuya Ogi, Yoshiho Seo, Tomoyuki Nonaka
  • Publication number: 20180205854
    Abstract: An optical scanning device for displaying or capturing an image is used, the device including: an optical scanning unit configured to scan emitted light while drawing a spiral trajectory, wherein the unit includes: a light guide path configured to guide incident light to output the emitted light from an emission end; and a vibration unit configured to vibrate the emission end; a light emission control unit configured to control light emission of the emitted light; a polar coordinate generation unit configured to generate a radius and a deflection angle relating to the spiral trajectory; a driving signal generation unit configured to generate a driving signal for driving the vibration unit; an angle correction unit configured to perform calculation for correcting an angle based on information from the driving signal generation unit and output an corrected angle; and a coordinate calculation unit configured to calculate coordinates of an image.
    Type: Application
    Filed: January 12, 2018
    Publication date: July 19, 2018
    Inventors: Shinsuke ONOE, Toshiteru NAKAMURA, Kenichiro YAMADA, Takahiro MATSUDA, Yoshiho SEO
  • Publication number: 20180184042
    Abstract: Provided is a video display device wearable on the head of a user, wherein the video display device includes a video display unit capable of switching two or more display methods, a control unit for indicating a display method to the video display unit, a first detection unit for detecting the motion of the head of a user, a second detection unit for detecting the motion of the point of view of the user, and a motion determination unit for determining the motion state of the device user by using the output from the first detection unit and the output from the second detection unit. The control unit indicates a change of display methods to the video display unit in accordance with the determination result of the motion determination unit.
    Type: Application
    Filed: June 5, 2015
    Publication date: June 28, 2018
    Inventors: Takahiro MATSUDA, Satoshi OUCHI, Yoshiho SEO, Seiji MURATA
  • Patent number: 9972278
    Abstract: A light irradiation device to display an image by light irradiation prevents easy perception of distortion occurring in the displayed image due to vibration of the device or movement of viewpoint. A random number is generated, and the refresh rate of the displayed image is distributed at random in correspondence with the random number. The light emission intensity is changed in correspondence with the refresh rate. When the number of lines is changed, the input video signal is subjected to scaling and a display is produced. The refresh rate is changed in correspondence with the frequency of the vibration detected with the vibration monitor.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: May 15, 2018
    Assignee: HITACHI-LG DATA STORAGE, INC.
    Inventors: Yoshiho Seo, Satoshi Ouchi, Hiromi Kusaka
  • Publication number: 20180129050
    Abstract: A head-mounted display (101) includes: an imaging assembly (203) imaging scenery seen by a user to generate a source picture; a storage unit (202) storing color correction factors used for correcting brightness of each of a red, green and blue color components included in a picture; a correction picture generator (212) performing color correction processing for enhancing a color component with a relatively low color correction factor stored in the storage unit (202), of the red, green and blue color components forming the source picture, to generate a correction picture; a picture display assembly (207) displaying the correction picture in the field of view of the user under a condition where he/she is able to perceive the outside world; and a special picture processor (213) performing picture processing for overlaying the correction picture and the source picture on each other for display.
    Type: Application
    Filed: May 19, 2015
    Publication date: May 10, 2018
    Inventors: Shingo HAYASHI, Satoshi OUCHI, Yoshiho SEO, Tomoto KAWAMURA, Seiji MURATA, Takahiro MATSUDA, Toshiteru NAKAMURA