Patents by Inventor Masanori Yasuda

Masanori Yasuda 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: 10890834
    Abstract: A light modulation includes a light modulator, a first polarizer wherein light outputted from the light modulator is incident, and a second polarizer wherein light outputted from the first polarizer is incident. The first polarizer includes a first base having a first and second surface, a first light absorbing layer to face the first base, and a first inorganic polarization layer on the first surface, disposed between the first base and first light layer. The second polarizer includes a second base having a third and fourth surface, a second light absorbing layer to face the second base, and a second inorganic polarization layer on the third surface, disposed between the second base and second light layer. The first polarizer is disposed the first light layer faces a light exiting surface. The second polarizer is disposed the fourth surface of the second base faces the second surface of the first base.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: January 12, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tomoharu Masuda, Masanori Yasuda, Kohei Nakazaki
  • Patent number: 10781752
    Abstract: An inlet air cooling system used in a gas turbine for supplying power to a refrigerant compressor for compressing refrigerant in a natural gas liquefaction plant includes: an inlet air cooler for cooling inlet air of the gas turbine; chiller motors used for a chiller for cooling coolant supplied to the inlet air cooler; a first variable speed driver for supplying electric power to each of the one or more chiller motors; and an electric generator driven by the gas turbine, wherein the electric generator is electrically connected to the first variable speed driver, and electric power generated by the electric generator can be supplied to each of the chiller motors from the first variable speed driver without using a main power line of an electric power system, which enables efficient electric power supply to the motors via the variable speed driver.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: September 22, 2020
    Assignee: CHIYODA CORPORATION
    Inventors: Yoshitsugi Kikkawa, Takashi Okano, Satoshi Yasuda, Toshiya Momose, Masanori Kameta
  • Publication number: 20200278597
    Abstract: A light modulation includes a light modulator, a first polarizer wherein light outputted from the light modulator is incident, and a second polarizer wherein light outputted from the first polarizer is incident. The first polarizer includes a first base having a first and second surface, a first light absorbing layer to face the first base, and a first inorganic polarization layer on the first surface, disposed between the first base and first light layer. The second polarizer includes a second base having a third and fourth surface, a second light absorbing layer to face the second base, and a second inorganic polarization layer on the third surface, disposed between the second base and second light layer. The first polarizer is disposed the first light layer faces a light exiting surface. The second polarizer is disposed the fourth surface of the second base faces the second surface of the first base.
    Type: Application
    Filed: February 28, 2020
    Publication date: September 3, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tomoharu MASUDA, Masanori YASUDA, Kohei NAKAZAKI
  • Publication number: 20190390676
    Abstract: A centrifugal blower device has a turbo fan unit and a casing. The casing includes a first casing member and a second casing member. One of the first casing member and the second casing member includes a first step portion having a first surface, a second step portion having a second surface, and a third step portion having a third surface. Each of the first surface, the second surface and the third surface forms a part of an outer surface of the one of the casing members and has a position different from one another in an axial direction. The second surface is located at a position closer than the first surface to the other one of the first casing member and the second casing member. The third surface is located at a position closer than the second surface to the other one of the casing members.
    Type: Application
    Filed: September 5, 2019
    Publication date: December 26, 2019
    Inventors: Fumiya ISHII, Shuzo ODA, Masanori YASUDA
  • Patent number: 10466577
    Abstract: A projector includes an illumination device adapted to emit an illumination light beam, an image forming device adapted to modulate the illumination light beam emitted from the illumination device to form an image, a projection optical device adapted to project the image formed by the image forming device, and a light guide device adapted to guide the illumination light beam emitted from the illumination device to the image forming device, and defining two directions which are propagation directions of the illumination light beam propagating inside the image forming device, and cross each other as a first direction and a second direction, the image forming device is disposed so that at least a part of the image forming device overlaps at least a part of the illumination device in a third direction perpendicular to each of the first direction and the second direction.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: November 5, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masanori Yasuda, Toshihiko Nagumo
  • Publication number: 20190309767
    Abstract: A bladed wheel of a blower device has a main plate, a side plate and multiple fan blades between the main plate and the side plate. A fan casing of the blower device has a bell mouth portion and a guide wall portion, which extends in a radial-outward direction from an axial rear-side end of the bell mouth portion to an outer periphery of the side plate. An air reflecting space is formed in the fan casing at a radial-outside position of the guide wall portion and at an axial front-side position of the fan casing between an axial rear-side end of the guide wall portion and an axial front-end wall portion of the fan casing. Air blown out from the bladed wheel flows through an air blow-out passage, wherein sound wave of the air from the bladed wheel and sound wave of the air from the air reflecting space interfere with each other so that noise is decreased.
    Type: Application
    Filed: March 22, 2019
    Publication date: October 10, 2019
    Inventors: Masanori YASUDA, Shouichi IMAHIGASHI
  • Publication number: 20190242396
    Abstract: A centrifugal blower includes an outer rotor, and a turbo fan. The turbo fan includes blades, an other end plate, and a cylinder portion. The cylinder portion is located inside the other end plate, and is fixed to the outer rotor. A surface of the outer rotor configures a rotor guide surface that guides an air flow toward a channel provided between adjacent blades. Each blade has a leading edge side portion located radially inside the cylinder portion. An outer end portion of the rotor guide surface in the radial direction is located at the same position in the axial direction as a one side cylinder end portion of the cylinder portion in the axial direction, in a state where a rotor contact portion of the outer rotor and a blade contact portion of the leading edge side portion are in contact with each other.
    Type: Application
    Filed: June 8, 2017
    Publication date: August 8, 2019
    Inventors: Fumiya ISHII, Shuzo ODA, Masanori YASUDA
  • Publication number: 20190213031
    Abstract: A service providing system includes a control server and a physical resource(s) controlled by the control server. The control server has a virtual device providing unit(s) that provides at least one virtual object for controlling a physical resource(s), and a virtual infrastructure providing unit(s) that can provide, as a virtual object(s), a virtual infrastructure(s) configured using at least one virtual object provided by the virtual device providing unit(s), wherein the virtual infrastructure providing unit(s) can configure a virtual infrastructure(s) using the virtual object(s) provided by the virtual infrastructure providing unit(s), and can provide the virtual infrastructure(s) as a virtual object(s).
    Type: Application
    Filed: December 31, 2018
    Publication date: July 11, 2019
    Applicant: NEC CORPORATION
    Inventors: Hideyuki Shimonishi, Takayuki Hama, Takeharu Yasuda, Yuki Tanaka, Shuji Ishii, Masanori Takashima
  • Publication number: 20190149523
    Abstract: [Problem] To provide an anonymous communion ion system which ensures anonymity, with which a user can be identified if necessary, and which has a high degree of social credibility. [Solution] A user computer 11 transmits to a management computer 21 electronically signed subscription application data signed using a first signature key capable of being used with another communication system. The management computer 21 verifies the electronic signature of the subscription application data using a first public key, and if the validity of the electronic signature can be verified, generates and encrypts a second signature key and transmits the encrypted second signature key to the user computer 11. The user computer 11 generates electronically signed receipt data that have been signed in duplicate using the first and second signature keys, and transmits the receipt data to the management computer 21.
    Type: Application
    Filed: November 8, 2016
    Publication date: May 16, 2019
    Inventors: Yoshihiro SHIN, Hiroshi YASUDA, Katsuyuki MAEDA, Shouichi NISHIMURA, Masanori YAMAMURA
  • Publication number: 20190093665
    Abstract: A centrifugal blower includes: a centrifugal fan, which includes a shroud ring; and a case. The case includes a cover portion that covers a surface of the shroud ring located on one side in an axial direction. The cover portion includes a recess formed in a cover opposing surface, which is opposed to the shroud ring, and the recess is shaped in a form of a circle. The shroud ring includes at least one projection that is formed in a ring opposing surface, which is opposed to the cover portion. A gap is formed between the cover portion and the shroud ring. A shortest distance between a radially inner end part of the shroud ring and the cover portion is set to be larger than a shortest distance between a surface of the projection and a surface of the recess.
    Type: Application
    Filed: February 9, 2017
    Publication date: March 28, 2019
    Inventors: Fumiya ISHII, Shuzo ODA, Masanori YASUDA
  • Publication number: 20190041740
    Abstract: A projector includes an illumination device adapted to emit an illumination light beam, an image forming device adapted to modulate the illumination light beam emitted from the illumination device to form an image, a projection optical device adapted to project the image formed by the image forming device, and a light guide device adapted to guide the illumination light beam emitted from the illumination device to the image forming device, and defining two directions which are propagation directions of the illumination light beam propagating inside the image forming device, and cross each other as a first direction and a second direction, the image forming device is disposed so that at least a part of the image forming device overlaps at least a part of the illumination device in a third direction perpendicular to each of the first direction and the second direction.
    Type: Application
    Filed: July 25, 2018
    Publication date: February 7, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Masanori YASUDA, Toshihiko NAGUMO
  • Patent number: 10168267
    Abstract: A rotational speed detection device is provided that can detect the rotational speed of a rotating object with high precision by readily controlling a relatively inexpensive and compact optical device, and has a lower cost and a smaller size with maintained or improved detection precision of the rotational speed of the rotating object. The rotational speed detection device includes a light emitting unit (5), a light receiving unit (6), a received light data obtaining unit (13), and a rotational speed calculation unit (15) that calculates the rotational speed of a rotating object (3). The rotating object (3) has an irregular uneven portion (3A) on a rotating surface thereof. The received light data obtaining unit (13) obtains time-series data of received light data of light reflected by the uneven portion (3A). The rotational speed calculation unit (15) calculates the rotational speed of the rotating object (3) from the periodicity of the time-series data.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: January 1, 2019
    Assignee: KYOTO ELECTRONICS MANUFACTURING CO., LTD.
    Inventors: Masanori Yasuda, Keiji Sakai
  • Patent number: 10123628
    Abstract: An air passage forming member includes an air passage inner wall surface that forms a wall surface of a connecting air passage connected to a cushion air passage. A blower device case has an air intake opening that is connected to the connecting air passage. A centrifugal fan is received in the inside of the blower device case. The air passage forming member is arranged such that at a downstream end of the connecting air passage, the air, which flows along the air passage inner wall surface in the connecting air passage, forms an air flow, which is directed in an axial direction of a fan central axis, or an air flow, which is directed toward an outer side in a radial direction of the fan central axis in comparison to the air flow that is directed in the axial direction.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: November 13, 2018
    Assignees: DENSO CORPORATION, SOKEN, INC.
    Inventors: Fumiya Ishii, Masanori Yasuda, Shuzo Oda
  • Patent number: 10088743
    Abstract: A polarization conversion element includes: a plurality of polarization separation layers and a plurality of reflective layers alternately disposed along a first direction; and a plurality of retardation layers. The plurality of polarization separation layers reflect first polarized light of incident light along the first direction and transmit second polarized light along a second direction orthogonal to the first direction. The plurality of reflective layers reflect, along the second direction, the first polarized light reflected by a corresponding polarization separation layer. The plurality of retardation layers are provided on an optical path of one polarized light of the first polarized light and the second polarized, and convert the one polarized light to the other polarized light. The direction of a slow axis of one and another retardation layers are line-symmetrical about an axis along a third direction orthogonal to the first and the second directions.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: October 2, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Masanori Yasuda
  • Publication number: 20180217487
    Abstract: A polarization conversion element includes: a plurality of polarization separation layers and a plurality of reflective layers alternately disposed along a first direction; and a plurality of retardation layers. The plurality of polarization separation layers reflect first polarized light of incident light along the first direction and transmit second polarized light along a second direction orthogonal to the first direction. The plurality of reflective layers reflect, along the second direction, the first polarized light reflected by a corresponding polarization separation layer. The plurality of retardation layers are provided on an optical path of one polarized light of the first polarized light and the second polarized, and convert the one polarized light to the other polarized light. The direction of a slow axis of one and another retardation layers are line-symmetrical about an axis along a third direction orthogonal to the first and the second directions.
    Type: Application
    Filed: January 25, 2018
    Publication date: August 2, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Masanori YASUDA
  • Publication number: 20180149158
    Abstract: The inside of a blower casing of a centrifugal blower includes a discharge airflow path, which extends outward in a radial direction of a rotating shaft, on an airflow downstream side from a trailing edge of each of blades of a centrifugal fan. The discharge airflow path includes an adjacent airflow path adjacent to the trailing edge of each blade. When the length in the axial direction of the blade at the trailing edge is assumed to be blade height, and when the length in the axial direction at the trailing edge of the centrifugal fan is assumed to be fan height, the length in the axial direction of the adjacent airflow path is equal to or larger than the blade height and equal to or smaller than the fan height.
    Type: Application
    Filed: April 26, 2016
    Publication date: May 31, 2018
    Inventors: Fumiya ISHII, Shuzo ODA, Masanori YASUDA
  • Publication number: 20180020838
    Abstract: An air passage forming member includes an air passage inner wall surface that forms a wall surface of a connecting air passage connected to a cushion air passage. A blower device case has an air intake opening that is connected to the connecting air passage. A centrifugal fan is received in the inside of the blower device case. The air passage forming member is arranged such that at a downstream end of the connecting air passage, the air, which flows along the air passage inner wall surface in the connecting air passage, forms an air flow, which is directed in an axial direction of a fan central axis, or an air flow, which is directed toward an outer side in a radial direction of the fan central axis in comparison to the air flow that is directed in the axial direction.
    Type: Application
    Filed: January 7, 2016
    Publication date: January 25, 2018
    Inventors: Fumiya ISHII, Masanori YASUDA, Shuzo ODA
  • Publication number: 20170324304
    Abstract: In an electric motor, a magnetic bearing generates an electromagnetic force between multiple permanent magnets and a coil and rotatably supports an other side of a rotation shaft in an axis line direction. The rotation shaft is configured to be capable of being inclined with a rotation center line using a bearing side of the rotation shaft as a fulcrum. An electronic control device controls a current that flows to the coil such that an axis line of the rotation shaft approaches the rotation center line due to a supporting force which is the electromagnetic force between the multiple permanent magnets and the coil. Accordingly, the rotation shaft is rotatably supported to be freely rotatable by a magnetic bearing and the bearing.
    Type: Application
    Filed: October 29, 2015
    Publication date: November 9, 2017
    Inventors: Koji ITO, Masanori YASUDA, Shinji MAKITA, Jun YAMAOKA, Masao TOKUNAGA, Etsuro YOSHINO, Junichi ASAMA
  • Patent number: 9568020
    Abstract: A blower includes a fan that causes momentum to air by rotation, a shaft that defines a rotation axis of the fan, a bearing that supports the shaft outside of the fan, and a weight that is movable in a direction of rotation of the fan. In the fan, the weight is located opposite to the bearing with respect to an end of the fan adjacent to the bearing, and thus an increase in weight by the weight can be reduced.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: February 14, 2017
    Assignee: DENSO CORPORATION
    Inventors: Masanori Yasuda, Koji Ito, Shinya Murayama, Kouhei Nakamura
  • Patent number: 9447792
    Abstract: A centrifugal blower provided with a spiral shaped scroll chamber where a bottom part of the scroll chamber gradually expands downward in the axial direction of the fan well along with expansion of the spiral and where a flow area gradually expands toward an air outlet from a spiral start part of the casing, the centrifugal blower having an initial slant angle ?0 at the spiral start part of the bottom part of the scroll chamber of a range of angle of 5.2° to 27.5° or setting a backflow prevention rib at the fan outlet.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: September 20, 2016
    Assignees: DENSO CORPORATION, NIPPON SOKEN, INC.
    Inventors: Yasushi Mitsuishi, Masaharu Sakai, Masanori Yasuda, Shouichi Imahigashi, Syunsuke Ishiguro