Patents by Inventor Akira Komatsu

Akira Komatsu 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: 10802289
    Abstract: A virtual image display device has a light guide device in which the half mirror layer (the semi-transmissive reflecting film) of the light guide member is formed on the partial area of the first junction surface, and the second junction surface of the light transmitting member is bonded to the first junction surface in at least the exceptional area. Therefore, it is possible to increase the bonding strength of the first junction surface and the second junction surface, namely the strength of the light guide device composed of the light guide member and the light transmitting member combined with each other even in the case in which the attachment force of the half mirror layer (the semi-transmissive reflecting film) with respect to the first junction surface is not sufficiently strong.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: October 13, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masayuki Takagi, Takahiro Totani, Toshiaki Miyao, Akira Komatsu, Takashi Takeda
  • Patent number: 10760812
    Abstract: In order to carry out, in a heating operation, an airflow rate adjusting operation in which a reduced amount of conditioned air is blown in one or more of a plurality of blowing directions to increase a blowing speed in the rest of the blowing directions, an operation control section is configured to control the flow of the conditioned air such that the conditioned air is blown out in a horizontal blow mode in the blowing direction in which the blowing speed is increased by the airflow rate adjusting operation, and periodically change the blowing direction in which a reduced amount of the conditioned air is blown. As a result, temperature variations in the air-conditioning target space in the heating operation are reduced.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: September 1, 2020
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Akira Komatsu, Nobuyuki Kojima, Takahiro Wasaka, Masaaki Murata
  • Patent number: 10735701
    Abstract: In a projection system, a nonaxisymmetric aspheric surface is used as a surface that is located in a position where in a pencil of light of video image light that exits from each of two points in different corner regions in an image plane that is a light exiting plane of an image display apparatus, light components that should reach a viewer's eyes do not intersect one another, whereby the size of an optical system can be further reduced and the size of an overall apparatus can therefore be reduced with a variety of types of optical precision, such as the resolution and angle of view, maintained.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 4, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masayuki Takagi, Takahiro Totani, Takashi Takeda, Akira Komatsu, Toshiaki Miyao
  • Patent number: 10710463
    Abstract: The control device for the electric vehicle determines whether or not the starting operation of the vehicle has been performed by the driver, calculates the disturbance torque estimated value Td necessary for maintaining the vehicle stop state corresponding to the disturbance acting on the vehicle, and performs a control such that the driving torque of the motor converges to the disturbance torque estimated value Td when the vehicle is determined to be just before stop of the vehicle during running or determined to have undergone the starting operation. Then, the control device for the electric vehicle controls the responsiveness of the driving torque to the disturbance acting on the vehicle, and increases the responsiveness of the driving torque of the motor compared with the responsiveness of the driving torque just before stop of the vehicle when the starting operation is determined to have been performed.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: July 14, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Akira Sawada, Ken Itou, Takashi Nakajima, Yuji Katsumata, Hiroyuki Komatsu
  • Patent number: 10701351
    Abstract: First display elements and first ocular optical systems perform display in a first display region on a front side with respect to an observer, whereas second display elements and second ocular optical systems perform display in second display regions on peripheral sides with respect to the observer. Thus, a superimposed region of the display regions is provided in a position outside a central side of a person's visual field having an excellent information receiving capacity, and a wide angle of view is achieved while preventing the boundary from being visually identified. Further, the whole device is reduced in size and thickness by providing the plurality of display elements.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: June 30, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Akira Komatsu, Masayuki Takagi, Takashi Takeda, Toshiaki Miyao, Tokito Yamaguchi
  • Patent number: 10655885
    Abstract: Entrance of cold air from near a wall of an indoor space is avoided. An airflow direction adjusting flap is provided at a main outlet opening, and changes the direction of airflow coming from the main outlet opening in a vertical direction. A load detector detects a load of an indoor space. When the load of the indoor space is higher than a predetermined value in a heating operation, the airflow direction adjusting flap guides the air coming from the main outlet opening in a horizontal direction or in an upward direction with respect to the horizontal direction.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: May 19, 2020
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Nobuyuki Kojima, Akira Komatsu, Ryouta Suhara, Masaaki Murata, Natsumi Furo
  • Patent number: 10642350
    Abstract: An eyepiece optical system is configured to form a non-telecentric optical system together with an image display unit serving as an image element, and to include the pixels in which a pixel in a peripheral region and the like on an image display has a larger size than a pixel in a central region on the image display. Accordingly, the central region that supports a wide angle of view and is of the image display on the image element having an effective field of view with a good performance of information capacity, makes it possible to retain image formation with high resolution, and to prevent an image from being degraded in the peripheral region, thus making it possible to ensure high-quality visibility.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: May 5, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masayuki Takagi, Akira Komatsu, Takashi Takeda, Toshiaki Miyao, Tokito Yamaguchi
  • Patent number: 10645374
    Abstract: First and second display devices have first and second common display areas in which image display with common content to left and right eyes is performed. At least one of the first and second display devices has an extended display area. A display control unit generates a signal including common image information for the first and second common display areas and extension image information for the extended display area.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: May 5, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takashi Takeda, Masayuki Takagi, Toshiaki Miyao, Akira Komatsu, Takahiro Totani
  • Patent number: 10627644
    Abstract: A first lens and a second lens are bonded to each other and configured to be short in an optical axis direction. Further, by providing a half mirror in a bonding portion between a convex surface and a concave surface, power is given when folding an optical path, and additionally, by setting a refractive index of the first lens larger than a refractive index of the second lens, an image with a wide angle of view can be formed.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: April 21, 2020
    Assignee: SIEKO EPSON CORPORATION
    Inventors: Masayuki Takagi, Takashi Takeda, Akira Komatsu, Toshiaki Miyao, Tokito Yamaguchi
  • Patent number: 10606095
    Abstract: A first lens and a second lens are bonded, and each of a light emitting plane and a light incident plane is a flat surface to shorten a configuration in an optical axis direction, and simultaneously, various optical elements such as a transmission/reflection selection member and the like can be mounted on a flat surface portion. Further, by providing a half mirror in a bonding portion between a convex surface and a concave surface to give power in folding an optical path, an image with a wide angle of view can be formed.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: March 31, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masayuki Takagi, Takashi Takeda, Akira Komatsu, Toshiaki Miyao, Tokito Yamaguchi
  • Publication number: 20200064638
    Abstract: A see-through display apparatus includes an image display apparatus configured to emit a video light, a light guide apparatus configured to guide the video light and to output the video light in a first direction, and a light control shade disposed opposite to the first direction with respect to the light guide apparatus. The light control shade is configured to control a transmittance of an outside light based on a luminance of the outside light. A first response time of the light control shade when the outside light changes from a lower luminance to a higher luminance is slower than a second response time of the light control shade when the outside light changes from the higher luminance to the lower luminance.
    Type: Application
    Filed: November 4, 2019
    Publication date: February 27, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Masayuki TAKAGI, Takahiro TOTANI, Takashi TAKEDA, Akira KOMATSU, Toshiaki MIYAO
  • Publication number: 20200065954
    Abstract: A non-transitory computer-readable recording medium storing therein an anomalousness determination program that causes a computer to execute a process includes: sensing a region in an object in each of a plurality of ultrasound examination images using an object sensing technique; based on a result of the sensing and a structure of the object, acquiring a result of sensing each of a plurality of regions in the object in each of the ultrasound examination images; and determining anomalousness in the object based on the result of sensing each of the regions in the ultrasound examination images.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 27, 2020
    Inventors: Masaaki Komatsu, Hiroyuki Yoshida, Akira Sakai, Akihiko Sekizawa, Ryu Matsuoka, Ryuji Hamamoto
  • Publication number: 20200060659
    Abstract: A non-transitory computer-readable recording medium stores therein an examination assisting program that causes a computer to execute a process including: performing a site detecting process that uses an object detection technique on each of a plurality of ultrasound examination images taken of an examined subject by performing a scan on the examined subject; and displaying a site detection map in which a detection result of each of a plurality of sites included in the examined subject is kept in correspondence with the scan, on a basis of detection results from the site detecting process.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 27, 2020
    Inventors: Masaaki Komatsu, Hiroyuki Yoshida, Akira Sakai, Akihiko Sekizawa, Ryu Matsuoka, Ryuji Hamamoto
  • Publication number: 20200049999
    Abstract: A virtual image display device includes a display light guiding unit, and an image forming unit that emits image light to the display light guiding unit, the display light guiding unit includes a first light guiding unit that guides image light corresponding to a first angle of view, and a second light guiding unit that guides image light corresponding to a second angle of view, among angles of view of image light emitted from the image forming unit, and the first light guiding unit and the second light guiding unit respectively include incident side diffraction elements that take the image light beams into the inside, and emission side diffraction elements that emit the image light beams to the outside.
    Type: Application
    Filed: October 23, 2019
    Publication date: February 13, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi TAKEDA, Akira KOMATSU, Masayuki TAKAGI, Toshiaki MIYAO
  • Publication number: 20200041785
    Abstract: A virtual image display device includes an image element configured to display an image, a first lens disposed in an extraction position of image light and including at the image element side thereof a convex surface, a second lens disposed further toward the image element side than the first lens and including a concave surface bonded to the convex surface of the first lens, a half mirror provided in a bonding portion for bonding together the convex surface and the concave surface, a transmission/reflection selection member provided at a light emitting side of the first lens and configured to selectively perform transmission or reflection of the light depending on a polarization state of the light, and a light-guiding portion keeping close contact between the image element and the second lens and configured to guide the image light.
    Type: Application
    Filed: August 6, 2019
    Publication date: February 6, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Masayuki TAKAGI, Akira KOMATSU, Takashi TAKEDA, Toshiaki MIYAO, Tokito YAMAGUCHI
  • Publication number: 20200041795
    Abstract: A virtual image display device includes an image element configured to display an image, a first optical unit disposed at a position where image light is extracted, a second optical unit disposed at the image element side with respect to the first optical unit, a half mirror provided on a serrated surface formed at a bonding portion between the first optical unit and the second optical unit, and a transmission/reflection selection member that is provided at a light emitting side of the first optical unit and that is configured to selectively transmit or reflect light depending on a polarization state of the light.
    Type: Application
    Filed: August 5, 2019
    Publication date: February 6, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tokito YAMAGUCHI, Masayuki TAKAGI, Toshiaki MIYAO, Akira KOMATSU, Takashi TAKEDA
  • Patent number: 10543132
    Abstract: An absorbent article includes a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body between the liquid-permeable top sheet and liquid-impermeable back sheet. The liquid-permeable top sheet includes a blood modifying agent with an IOB of 0.00-0.60, a melting point of no higher than 45° C., a water solubility of 0.00-0.05 g in 100 g of water at 25° C., and a weight-average molecular weight of no greater than 1,000.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: January 28, 2020
    Assignee: UNICHARM CORPORATION
    Inventors: Shimpei Komatsu, Yuki Noda, Mitsuhiro Wada, Akira Hashino, Hideyuki Kinoshita, Masashi Nakashita, Ichiro Wada
  • Publication number: 20200018966
    Abstract: A head-mounted display includes a display device, a projection optical member, a prism member, and a light condensing and reflecting surface. The prism member includes a first prism, and a second prism that is disposed further toward an exit pupil side than the first prism. The first prism includes an incident surface, a reflection surface that totally reflects the image light, and a first joining surface that is joined with the second prism via a semi-transmissive reflection surface. The second prism includes a second joining surface that is joined with the first joining surface, and an opposing flat surface that is disposed parallel to the reflection surface to face the reflection surface and configured to transmit the image light, reflected by the semi-transmissive reflection surface and then by the light condensing and reflecting surface and thereafter passing through the semi-transmissive reflection surface.
    Type: Application
    Filed: July 9, 2019
    Publication date: January 16, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Akira KOMATSU, Masayuki TAKAGI, Toshiaki MIYAO, Takashi TAKEDA, Tokito YAMAGUCHI
  • Publication number: 20200018967
    Abstract: A head-mounted display includes a display device, a projection optical member, and a prism member. The prism member includes a first prism receiving image light from the projection optical member, and a second prism disposed at a position further toward an exit pupil than the first prism. The first prism includes an entrance surface, a first reflection surface, and a first joining surface, the second prism includes a second joining surface joined to the first joining surface via a semi-transmissive reflection surface, a second reflection surface, and a light collecting reflection surface, and the semi-transmissive reflection surface is configured to reflect the image light, reflected by the light collecting reflection surface and then totally reflected by the second reflection surface, to pass through the second reflection surface.
    Type: Application
    Filed: July 9, 2019
    Publication date: January 16, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Akira KOMATSU, Masayuki TAKAGI, Toshiaki MIYAO, Takashi TAKEDA, Tokito YAMAGUCHI
  • Patent number: 10520733
    Abstract: A virtual image display device includes a display light guiding unit, and an image forming unit that emits image light to the display light guiding unit, the display light guiding unit includes a first light guiding unit that guides image light corresponding to a first angle of view, and a second light guiding unit that guides image light corresponding to a second angle of view, among angles of view of image light emitted from the image forming unit, and the first light guiding unit and the second light guiding unit respectively include incident side diffraction elements that take the image light beams into the inside, and emission side diffraction elements that emit the image light beams to the outside.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: December 31, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takashi Takeda, Akira Komatsu, Masayuki Takagi, Toshiaki Miyao