Patents by Inventor Hideo Kanai

Hideo Kanai 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: 20240264195
    Abstract: An ultrasonic time measurement device measures a propagation time of a measurement wave transmitted from a first sensor to a second sensor. The device includes a transmission circuit that causes the first sensor to repeatedly transmit measurement waves one at a time and a reception circuit that detects reception at the second sensor, of the respective measurement wave transmitted from the first sensor. The device further measures elapsed times for the measurement waves, each of the elapsed times being an elapsed time from a reference time to a reception time of the respective measurement wave received by the second sensor and calculate the propagation time of the measurement wave from the first sensor to the second sensor based on the elapsed times measured by the time measurer.
    Type: Application
    Filed: December 27, 2023
    Publication date: August 8, 2024
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Akira MORITA, Hojun YAMAUCHI, Yasuyuki MASUNAGA, Kazuhiro KOIZUMI, Masami KISHIRO, Hideo KANAI, Shiori YAMASHITA
  • Patent number: 12054494
    Abstract: A compound having anticancer activity, or a pharmaceutically acceptable salt thereof is provided. Used is a compound represented by the following formula (I) or a pharmaceutically acceptable salt thereof: (wherein, L1 and L2 are the same or different and each represents a group represented by one formula selected from the group consisting of formulas (A) to (F), and S represents a group represented by one formula selected from the group consisting of formulas (S1) to (S18)).
    Type: Grant
    Filed: January 25, 2023
    Date of Patent: August 6, 2024
    Assignee: KYOWA KIRIN CO., LTD.
    Inventors: Kenji Uchida, Ryohei Kawai, Keisuke Yamamoto, Toshimi Kanai, Hideo Ikota, Takashi Imaeda, Kei Yoshida
  • Patent number: 10277871
    Abstract: An image projection apparatus includes a light source, an image generation unit configured to receive light from the light source and generate an image based on the received light, a projection optical system unit configured to project the image generated by the image generation unit, a heat dissipation unit configured to dissipate heat of the image generation unit, and a movable member configured such that a position of the movable member is movable relative to the projection optical system unit, wherein the image generation unit and the heat dissipation unit are mounted on the movable member.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: April 30, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Akihisa Mikawa, Yoshio Kubo, Tetsuya Fujioka, Hideo Kanai, Yasunari Mikutsu, Satoshi Tsuchiya, Jun Mashimo
  • Patent number: 10036943
    Abstract: A light source device includes a first light-source unit, a second light-source unit, and a third light-source unit emitting light of spectra different from each other. Each of the first through third light-source units includes a heat dissipator and a light source. The light source includes a light emitting device. The heat dissipators of the first through third light-source units are disposed in an ascending order of values of T/Q of the first through third light-source units, in a direction of cooling air flow. “Q” represents a heat generation amount from the light source of each of the first through third light-source units, when the light sources are driven to obtain predetermined light intensity and lifespan. “T” represents a preset, upper-limit temperature for the light emitting device of each of the first through third light-source units to obtain the predetermined light intensity and lifespan.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: July 31, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Takehiro Nishimori, Tetsuya Fujioka, Yasunari Mikutsu, Hideo Kanai, Satoshi Tsuchiya, Jun Mashimo
  • Patent number: 10012893
    Abstract: An image projection apparatus includes a light source, light from which is used to form an image to be projected, a first flow path, a control unit configured to control a light emission from the light source, an electrical power stabilizing unit configured to stabilize an electrical power to be supplied to the light source, and an electrical power source unit configured to supply the electrical power to at least one of the control unit and the electrical power stabilizing unit. One or both of the electrical power source unit and the electrical power stabilizing unit is/are divided into a plurality of boards. The light source is arranged on a normal line of a surface of any of the plurality of boards. The plurality of boards configure surfaces of the first flow path except a surface nearest to the light source.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: July 3, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Masamichi Yamada, Tetsuya Fujioka, Yasutada Tsukioka, Naoyuki Ishikawa, Hideo Kanai
  • Publication number: 20180143516
    Abstract: An image projector includes a first housing, a second housing, a power transmitter, and a heat transporter. The first housing includes a light source to emit light, an image display to form an image with the light from the light source, an illumination optical device to direct the light from the light source to the image display, and a projection optical device to project the image. The second housing includes a power source to supply power, a heat dissipator to dissipate heat, and a cooler to exhaust the heat to an outside of the image projector. The power transmitter couples the first housing and the second housing to each other to transmit the power from the second housing to the first housing. The heat transporter couples the first housing and the second housing to each other to transport heat from the first housing to the second housing.
    Type: Application
    Filed: October 18, 2017
    Publication date: May 24, 2018
    Applicant: Ricoh Company, Ltd.
    Inventors: Takehiro NISHIMORI, Tetsuya FUJIOKA, Yasunari MIKUTSU, Satoshi TSUCHIYA, Hideo KANAI, Jun MASHIMO
  • Patent number: 9964733
    Abstract: A holding structure holds a reflecting mirror. The holding structure includes a reflecting mirror bracket holding the reflecting mirror; a protrusion disposed on the reflecting mirror; a protrusion supporting part disposed on the reflecting mirror bracket and supporting the protrusion; and a spacer disposed between the protrusion supporting part and the reflecting mirror bracket.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: May 8, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Tetsuya Fujioka, Akihisa Mikawa, Hideo Kanai, Yasunari Mikutsu, Satoshi Tsuchiya, Takahiro Hiramatsu, Yukimi Nishi, Jun Mashimo, Yoshito Saito
  • Publication number: 20180120678
    Abstract: A projection optical device includes a projection lens unit, a projection optical element, an optical housing, a holder, and a mover. The projection lens unit holds a projection lens on which a projection image generated by an image generating device is incident. The projection optical element guides the projection image, which has passed through the projection lens, to a projection surface. The optical housing is attached with the image generating device. The holder is attached to the optical housing. The holder holds the projection lens unit and the projection optical element. The mover relatively moves the holder with respect to the optical housing in an incident direction in which the projection image is incident on the projection lens.
    Type: Application
    Filed: October 19, 2017
    Publication date: May 3, 2018
    Applicant: Ricoh Company, Ltd.
    Inventors: Yasunari MIKUTSU, Satoshi TSUCHIYA, Takehiro NISHIMORI, Jun MASHIMO, Tetsuya FUJIOKA, Hideo KANAI
  • Patent number: 9961310
    Abstract: An image projection apparatus that generates an image based on image data and projects the image, includes: an image generation element that uses light emitted from a light source to generate an image; a holding unit that rotatably holds the image generation element; and an illumination optical unit that includes one or more optical systems and a light tunnel that is a tubular member surrounding part of a light path from the light source to the image generation element and reflects the light by an inner surface thereof, and that projects the light passing through the light tunnel toward an entire area of a rotatable range of the image generation element.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: May 1, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Akihisa Mikawa, Tetsuya Fujioka, Hideo Kanai, Yasunari Mikutsu, Satoshi Tsuchiya, Jun Mashimo
  • Patent number: 9952486
    Abstract: There is provided a image projection apparatus including an image generation unit for generating an image by using light emitted from a light source, comprising: a movable unit configured to hold the image generation unit and to be able to change a position of the image generation unit; and a drive unit configured to drive the movable unit to move, wherein the movable unit is disposed to move horizontally.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: April 24, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Akihisa Mikawa, Tetsuya Fujioka, Hideo Kanai, Yasunari Mikutsu, Satoshi Tsuchiya, Takahiro Hiramatsu, Yukimi Nishi, Jun Mashimo, Yoshito Saito
  • Publication number: 20180059521
    Abstract: A light source device includes a first light-source unit, a second light-source unit, and a third light-source unit emitting light of spectra different from each other. Each of the first through third light-source units includes a heat dissipator and a light source. The light source includes a light emitting device. The heat dissipators of the first through third light-source units are disposed in an ascending order of values of T/Q of the first through third light-source units, in a direction of cooling air flow. “Q” represents a heat generation amount from the light source of each of the first through third light-source units, when the light sources are driven to obtain predetermined light intensity and lifespan. “T” represents a preset, upper-limit temperature for the light emitting device of each of the first through third light-source units to obtain the predetermined light intensity and lifespan.
    Type: Application
    Filed: July 10, 2017
    Publication date: March 1, 2018
    Applicant: Ricoh Company, Ltd.
    Inventors: Takehiro NISHIMORI, Tetsuya Fujioka, Yasunari Mikutsu, Hideo Kanai, Satoshi Tsuchiya, Jun Mashimo
  • Patent number: 9864262
    Abstract: An image projection device includes: an image generating unit that includes an optical modulation element generating an image using light emitted from a light source; an illumination optical unit that includes one or more optical elements guiding the light emitted from the light source to the image generating unit; a projecting unit that projects the image generated by the image generating unit; a first control unit that performs control to move the image generating unit movable with respect to the illumination optical unit; and a second control unit that performs control to move an illumination area indicating an area illuminated with the light guided to the image generating unit by the illumination optical unit according to a movement amount of the image generating unit.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: January 9, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tetsuya Fujioka, Akihisa Mikawa, Hideo Kanai, Yasunari Mikutsu, Satoshi Tsuchiya, Jun Mashimo, Yoshio Kubo
  • Patent number: 9829671
    Abstract: A projection lens unit includes a plurality of lenses configured to transmit and emit image light generated by an image generating unit using light from a light source; a barrel configured to hold the plurality of projection lenses; and a heat radiator disposed on the barrel and configured to radiate heat of the barrel to an outside.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: November 28, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Tsuchiya, Tetsuya Fujioka, Hideo Kanai, Yasunari Mikutsu, Akihisa Mikawa, Takahiro Hiramatsu, Yukimi Nishi, Yoshito Saito, Jun Mashimo
  • Patent number: 9787956
    Abstract: An image projection apparatus includes an image generator configured to use light emitted from a light source to generate an image; a movable member in which the image generator is disposed, the movable member being movably supported; a fixed member being fixed and configured to movably support the movable member; and a mover configured to move the movable member. The mover includes a first pair of actuators facing each other in a first direction across the image generator, and a second pair of actuators facing each other in the second direction across the image generator. The first pair of actuators causes a driving force to operate on the movable member in a direction parallel to a second direction orthogonal to the first direction. The second pair of actuators causes a driving force to operate on the movable member in a direction parallel to the first direction.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: October 10, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Yukimi Nishi, Jun Mashimo, Satoshi Tsuchiya, Tetsuya Fujioka, Yasunari Mikutsu, Takahiro Hiramatsu, Hideo Kanai, Akihisa Mikawa, Yoshito Saito
  • Patent number: 9778551
    Abstract: An illumination optical system is provided that is configured to guide light emitted from a light source to an image generation unit that is arranged to be movable in a direction perpendicular to incoming light and is configured to generate an image by reflecting the incoming light. The illumination optical system includes a first lens that is arranged to be movable in a direction perpendicular to an optical axis of the first lens, a second lens that is arranged to be movable in a direction that changes a face-to-face distance between the first lens and the second lens, and a lens position control unit configured to displace the first lens and the second lens.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: October 3, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Tsuchiya, Tetsuya Fujioka, Hideo Kanai, Yasunari Mikutsu, Akihisa Mikawa, Yukimi Nishi, Jun Mashimo, Takahiro Hiramatsu, Yoshito Saito
  • Publication number: 20170244940
    Abstract: An image projection apparatus includes a light source, an image generation unit configured to receive light from the light source and generate an image based on the received light, a projection optical system unit configured to project the image generated by the image generation unit, a heat dissipation unit configured to dissipate heat of the image generation unit, and a movable member configured such that a position of the movable member is movable relative to the projection optical system unit, wherein the image generation unit and the heat dissipation unit are mounted on the movable member.
    Type: Application
    Filed: September 24, 2015
    Publication date: August 24, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Akihisa MIKAWA, Yoshio KUBO, Tetsuya FUJIOKA, Hideo KANAI, Yasunari MIKUTSU, Satoshi TSUCHIYA, Jun MASHIMO
  • Publication number: 20170227835
    Abstract: An image projection apparatus includes a light source, light from which is used to form an image to be projected, a first flow path, a control unit configured to control a light emission from the light source, an electrical power stabilizing unit configured to stabilize an electrical power to be supplied to the light source, and an electrical power source unit configured to supply the electrical power to at least one of the control unit and the electrical power stabilizing unit. One or both of the electrical power source unit and the electrical power stabilizing unit is/are divided into a plurality of boards. The light source is arranged on a normal line of a surface of any of the plurality of boards. The plurality of boards configure surfaces of the first flow path except a surface nearest to the light source.
    Type: Application
    Filed: April 26, 2017
    Publication date: August 10, 2017
    Applicant: RICOH COMPANY, LTD.
    Inventors: Masamichi YAMADA, Tetsuya FUJIOKA, Yasutada TSUKIOKA, Naoyuki ISHIKAWA, Hideo KANAI
  • Patent number: 9713282
    Abstract: A cooling apparatus including an air blow part including an air outtake port; and a heat dissipater including a plurality of heat dissipating fins, wherein an end side of an upper surface of the heat dissipater is linearly aligned, wherein the plurality of heat dissipating fins includes a first heat dissipating area and a second heat dissipating area, wherein a surface area of the heat dissipating fins arranged in the first heat dissipating area is smaller than a surface area of the heat dissipating fins arranged in the second heat dissipating area, wherein the heat dissipating fins are arranged at a position facing the air outtake port of the air blow part.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: July 18, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Akihisa Mikawa, Tetsuya Fujioka, Hideo Kanai, Masamichi Yamada, Yasunari Mikutsu, Satoshi Tsuchiya, Yukimi Nishi
  • Patent number: 9678416
    Abstract: Disclosed is a light source device including a light source that includes a light emitting tube; and a cooler configured to cool the light emitting tube. The cooler includes an inlet port for drawing cooling air for cooling the light emitting tube; a flow channel that extends from the inlet port to the light emitting tube in a horizontal direction and that is for flowing the cooling air toward the light emitting tube; and a baffle plate that is disposed in the flow channel and that can slide in a gravity direction. The baffle plate has a shape and openings such that, in an installation state, an upper portion of the flow channel is opened and a lower portion of the flow channel is closed by the shape and positions of the openings of the baffle plate.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: June 13, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Naoyuki Ishikawa, Tetsuya Fujioka, Hideo Kanai, Akihisa Mikawa, Masamichi Yamada, Yasunari Mikutsu, Satoshi Tsuchiya, Yukimi Nishi
  • Patent number: 9671681
    Abstract: An image projection apparatus includes a light source, light from which is used to form an image to be projected, a first flow path, a control unit configured to control a light emission from the light source, an electrical power stabilizing unit configured to stabilize an electrical power to be supplied to the light source, and an electrical power source unit configured to supply the electrical power to at least one of the control unit and the electrical power stabilizing unit. One or both of the electrical power source unit and the electrical power stabilizing unit is/are divided into a plurality of boards. The light source is arranged on a normal line of a surface of any of the plurality of boards. The plurality of boards configure surfaces of the first flow path except a surface nearest to the light source.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: June 6, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Masamichi Yamada, Tetsuya Fujioka, Yasutada Tsukioka, Naoyuki Ishikawa, Hideo Kanai