Patents by Inventor Masaki Hirose

Masaki Hirose 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: 20240165891
    Abstract: A tubular body (1) made of a fiber-reinforced plastic and used as a structural material of a vehicle includes corners (4) extending along an axis of the tubular body (1) on an outer circumferential surface thereof. The tubular body (1) is a tubular laminate that is formed by laminating a fabric layer (12) formed by laminating fabric materials and unidirectional material layers (11, 13). Each fabric material includes a fabric in which reinforcing fibers are woven and a plastic with which the fabric is impregnated. Each unidirectional material layer (11, 13) includes reinforcing fibers oriented in one direction and a plastic with which the reinforcing fibers are impregnated. The reinforcing fibers of each unidirectional material layer (11, 13) are oriented along the axis of the tubular laminate.
    Type: Application
    Filed: February 14, 2022
    Publication date: May 23, 2024
    Applicants: MIZUNO TECHNICS CORPORATION, MAZDA MOTOR CORPORATION
    Inventors: Takeshi SAITO, Makoto HIROSE, Takumi KASHIMA, Hiroki YANO, Chikara TANAKA, Tomohito OKUYAMA, Taei SHIBAHARA, Masaki MOTOKI
  • Patent number: 11947140
    Abstract: A suction method is provided as a method of performing, by using a suction collet, suction of a Fabry-Perot interference filter including a substrate and a laminated structure that is provided on the substrate and that includes a main surface facing the side opposite to the substrate, the method including a first step of arranging the suction collet so as to face the main surface, a second step of bringing the suction collet into contact with the Fabry-Perot interference filter after the first step, and a third step of suctioning the Fabry-Perot interference filter by using the suction collet after the second step.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: April 2, 2024
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Masaki Hirose, Katsumi Shibayama, Takashi Kasahara, Toshimitsu Kawai, Hiroki Oyama, Yumi Kuramoto
  • Publication number: 20240030366
    Abstract: The light detector includes: a substrate including at least one light receiving area and a light incident surface on which light is incident; and a meta-lens formed on the light incident surface of the substrate to focus the light incident on the light incident surface. When viewed from the thickness direction (Z-axis direction) of the substrate, the meta-lens is formed so as to overlap both an adjacent region adjacent to the light receiving area and a peripheral region that is continuous with the adjacent region and is a region inside the light receiving area along the outer edge of the light receiving area. When viewed from the Z-axis direction, a non-forming region in which the meta-lens is not formed is provided in a region overlapping a central region of the light receiving area in the light incident surface.
    Type: Application
    Filed: September 8, 2021
    Publication date: January 25, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Hayato ISHIDA, Masaki HIROSE, Noburo HOSOKAWA, Soh UENOYAMA, Kazuyoshi HIROSE, Kazunori TANAKA
  • Publication number: 20240019794
    Abstract: An image forming apparatus includes a photosensitive drum, a charging member, an exposure unit, a developing member, and a transfer member. In a rotational axis direction of the charging member, a width of a transfer portion of the transfer member is shorter than that of a charging portion of the charging member, and an end of the surface of the photosensitive drum in the axis direction includes a non-transfer area in contact with the charging member and in no contact with the transfer member. The exposure unit exposes the non-transfer area during rotation of the photosensitive drum, and forms a surface potential on the surface downstream of an exposing portion and upstream of the transfer portion in a rotational direction. A controller controls such that an absolute value of the surface potential of the non-transfer area is smaller than that of the transfer outside paper passing area.
    Type: Application
    Filed: July 11, 2023
    Publication date: January 18, 2024
    Inventors: HIROKI EGUCHI, MASATAKE USUI, MASAKI HIROSE
  • Publication number: 20240019795
    Abstract: An image forming apparatus includes a photosensitive drum and an exposure unit for exposing a surface of the photosensitive drum to form an image by a first exposure amount. In a rotational axis direction of a charging portion, a width of a transfer portion is shorter than that of a developing portion, a width of the transfer portion is shorter than that of the charging portion and an end portion of the surface includes a non-transfer area in contact with the charging portion and in no contact with the transfer portion. The voltage having the normal polarity is applied to the transfer portion when no recording material exists at the transfer portion, and the exposure unit exposes an area, including the non-transfer area of the surface passed through the transfer portion during application of the voltage, by a second exposure amount smaller than the first exposure amount.
    Type: Application
    Filed: July 11, 2023
    Publication date: January 18, 2024
    Inventors: MASAKI HIROSE, MASATAKE USUI, HIROKI EGUCHI
  • Publication number: 20240019304
    Abstract: A light detection device includes: a Fabry-Perot interference filter provided with a light transmission region; a light detector configured to detect light transmitted through the light transmission region; a package having an opening and accommodating the Fabry-Perot interference filter and the light detector; and a light transmitting unit arranged on an inner surface of the package so as to close an opening, the light transmitting unit including a band pass filter configured to transmit light incident on the light transmission region. When viewed from a direction parallel to the line, an outer edge of the Fabry-Perot interference filter is positioned outside an outer edge of the opening, and an outer edge of the light transmitting unit is positioned outside the outer edge of the Fabry-Perot interference filter.
    Type: Application
    Filed: September 27, 2023
    Publication date: January 18, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Masaki HIROSE, Katsumi SHIBAYAMA, Takashi KASAHARA, Toshimitsu KAWAI, Hiroki OYAMA, Yumi TERAMACHI
  • Patent number: 11865701
    Abstract: A suction method is provided as a method of performing, by using a suction collet, suction of a Fabry-Perot interference filter including: a substrate; a laminated structure that is provided on the substrate and that includes a main surface facing a side opposite to the substrate; and a thinned portion that is located outside the laminated structure when viewed in a direction intersecting the main surface and that is recessed to a side of the substrate with respect to the main surface, the method including: a first step of arranging the suction collet so as to face the main surface; a second step of bringing the suction collet into contact with the Fabry-Perot interference filter after the first step; and a third step of suctioning the Fabry-Perot interference filter by using the suction collet after the second step.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: January 9, 2024
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Masaki Hirose, Katsumi Shibayama, Takashi Kasahara, Toshimitsu Kawai, Hiroki Oyama, Yumi Kuramoto
  • Patent number: 11852986
    Abstract: An image forming apparatus includes a photosensitive member, a charging member, a charging power source, a developing member, a transfer member, a transfer power source, an acquiring portion, and a controller. The controller controls a charging voltage to be a first charging voltage when an electric resistance value of the transfer member is a first resistance value and to be a second charging voltage not less than the first charging voltage in absolute value when the electric resistance value is a second resistance value lower than the first resistance value, and so that a change amount of the charging voltage when the electric resistance value is changed from the second resistance value to a third resistance value lower than the second resistance value is greater than a change amount of the charging voltage when the electric resistance value is changed from the first resistance value to the second resistance value.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: December 26, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaki Hirose, Taisuke Minagawa, Yusaku Iwasawa
  • Patent number: 11835388
    Abstract: A light detection device includes: a Fabry-Perot interference filter provided with a light transmission region; a light detector configured to detect light transmitted through the light transmission region; a package having an opening and accommodating the Fabry-Perot interference filter and the light detector; and a light transmitting unit arranged on an inner surface of the package so as to close an opening, the light transmitting unit including a band pass filter configured to transmit light incident on the light transmission region. When viewed from a direction parallel to the line, an outer edge of the Fabry-Pert interference filter is positioned outside an outer edge of the opening, and an outer edge of the light transmitting unit is positioned outside the outer edge of the Fabry-Perot interference filter.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: December 5, 2023
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Masaki Hirose, Katsumi Shibayama, Takashi Kasahara, Toshimitsu Kawai, Hiroki Oyama, Yumi Teramachi
  • Publication number: 20230358610
    Abstract: A light detection device of the present invention includes: a wiring board; a first support part disposed on a mounting surface of the wiring board; a Fabry-Perot interference filter having a first mirror part and a second mirror part between which a distance is variable and having an outer edge portion disposed in a first support region of the first support part; a light detector disposed on the mounting surface to face the first mirror part and the second mirror part on one side of the first support part; and a temperature detector disposed on the mounting surface, wherein the temperature detector is disposed on the mounting surface such that at least a part of the temperature detector overlaps a part of the Fabry-Perot interference filter when seen in a first direction perpendicular to the mounting surface and such that at least a part of the temperature detector overlaps a part of the first support part when seen in a second direction in which the first support part and the light detector are aligned with
    Type: Application
    Filed: July 18, 2023
    Publication date: November 9, 2023
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Takashi KASAHARA, Katsumi SHIBAYAMA, Kei TABATA, Masaki HIROSE, Hiroki OYAMA, Yumi KURAMOTO
  • Patent number: 11796391
    Abstract: A light detection device includes: a first support part disposed on a mounting surface of the wiring board; a Fabry-Perot interference filter disposed in a first support region of the first support part; and a temperature detector, wherein the temperature detector is disposed on the mounting surface such that at least a part of the temperature detector overlaps a part of the Fabry-Perot interference filter when seen in a first direction perpendicular to the mounting surface and such that at least a part of the temperature detector overlaps a part of the first support part when seen in a second direction in which the first support part and the light detector are aligned with each other, and wherein a first distance between the temperature detector and the first support part in the second direction is smaller than a first width of the first support region in the second direction.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: October 24, 2023
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Takashi Kasahara, Katsumi Shibayama, Kei Tabata, Masaki Hirose, Hiroki Oyama, Yumi Kuramoto
  • Publication number: 20230327039
    Abstract: A photodetection device includes a photodetection element and a package. The photodetection element includes a semiconductor substrate and a light absorption film. The light absorption film is provided on a region of at least a part of a region around a photodetection region on a principal surface of the semiconductor substrate. The light absorption film has a multi-layer structure including a light absorption layer, a resonance layer, and a reflection layer. At a wavelength of detection target light, a light transmittance inside the resonance layer is larger than a light transmittance inside the light absorption layer, and a light reflectance on a surface of the reflection layer is larger than a light reflectance on a surface of the resonance layer.
    Type: Application
    Filed: July 7, 2021
    Publication date: October 12, 2023
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshinori TSUKADA, Kohei KASAMORI, Masaki HIROSE, Yoshihisa WARASHINA
  • Publication number: 20230302543
    Abstract: A machining apparatus includes a processor configured to control an actuator to move a tailstock in a first direction at a first speed, to detect a contact between the tailstock and a workpiece based on a change in an input amount to the actuator while the actuator is controlled to move the tailstock at the first speed, to control the actuator to stop moving the tailstock when the contact is detected, to control the actuator to move the tailstock by a first distance in a second direction, to control the actuator to move the tailstock in the first direction at a second speed lower than the first speed, and to control the actuator to stop moving the tailstock, when the input amount to the actuator becomes a value corresponding to the target pressing force while the actuator is controlled to move the tailstock at the second speed.
    Type: Application
    Filed: June 1, 2023
    Publication date: September 28, 2023
    Applicant: Yamazaki Mazak Corporation
    Inventors: Naoya TANAKA, Toraharu RYUTA, Hiroyuki UEKI, Masaki HIROSE, Yuji SAKAI, Nozomu SAWAMURA, Shogo KAKEHI, Kazuya KUSAKA
  • Publication number: 20230288858
    Abstract: The invention is used in an image forming apparatus that has a replaceable roller member, an applying unit that applies voltage to the roller member, a current detecting unit that detects a current flowing in the roller member to which the voltage is applied, and a controlling unit. The controlling unit calculates a value of a slope of a current-voltage characteristic of a roller member on the basis of a first current detected when a first voltage is applied to the roller member and a second current that is detected when a second voltage is applied, and determines whether or not the roller member has been replaced on the basis of an amount of change from a value of a first slope calculated at a first timing and a value of a second slope calculated at a second timing later than the first timing.
    Type: Application
    Filed: March 10, 2023
    Publication date: September 14, 2023
    Inventors: MASAKI HIROSE, MASAHIDE HIRAI
  • Publication number: 20230187462
    Abstract: A photodetection element includes a semiconductor substrate having a principal surface on which detection target light is incident and a rear surface, and including one or a plurality of photodetection regions on the principal surface side, and a light absorption film provided on the rear surface. The light absorption film includes a reflection layer being a metal layer, a resonance layer provided between the reflection layer and the substrate, and a light absorption layer provided between the resonance layer and the substrate. In at least one of a wavelength of the detection target light and a wavelength of spontaneous light, a light transmittance inside the resonance layer is larger than a light transmittance inside the light absorption layer, and a light reflectance on a surface of the reflection layer is larger than a light reflectance on a surface of the resonance layer.
    Type: Application
    Filed: May 17, 2021
    Publication date: June 15, 2023
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshinori TSUKADA, Kohei KASAMORI, Masaki HIROSE, Yoshihisa WARASHINA
  • Publication number: 20230118479
    Abstract: A transportation method for transporting an object including a plurality of Fabry-Perot interference filters, the transportation method including a first step of accommodating the object in an accommodating container, wherein the Fabry-Perot interference filter includes a substrate, a first mirror portion and a second mirror portion provided on the substrate to face each other via a gap and in which a distance from each other is variable, and in the first step, the object is accommodated and supported in the accommodating container in a state where the plurality of Fabry-Perot interference filters is two-dimensionally arranged.
    Type: Application
    Filed: December 16, 2022
    Publication date: April 20, 2023
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Hiroki OYAMA, Katsumi SHIBAYAMA, Takashi KASAHARA, Masaki HIROSE, Toshimitsu KAWAI, Yumi KURAMOTO
  • Publication number: 20230122733
    Abstract: A transportation method for transporting an object including a plurality of Fabry-Perot interference filters, the transportation method including a first step of accommodating the object in an accommodating container, wherein the Fabry-Perot interference filter includes a substrate, a first mirror portion and a second mirror portion provided on the substrate to face each other via a gap and in which a distance from each other is variable, and in the first step, the object is accommodated and supported in the accommodating container in a state where the plurality of Fabry-Perot interference filters is two-dimensionally arranged.
    Type: Application
    Filed: December 16, 2022
    Publication date: April 20, 2023
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Hiroki Oyama, Katsumi Shibayama, Takashi Kasahara, Masaki Hirose, Toshimitsu Kawai, Yumi Kuramoto
  • Patent number: 11624902
    Abstract: A wafer includes a substrate layer, a first mirror layer having a plurality of two-dimensionally arranged first mirror portions, and a second mirror layer having a plurality of two-dimensionally arranged second mirror portions. In the wafer, a gap is formed between the first mirror portion and the second mirror portion so as to form a plurality of Fabry-Perot interference filter portions. A wafer inspection method according to an embodiment includes a step of performing faulty/non-faulty determination of each of the plurality of Fabry-Perot interference filter portions, and a step of applying ink to at least part of a portion overlapping the gap when viewed in a facing direction on the second mirror layer of the Fabry-Perot interference filter portion determined as faulty.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: April 11, 2023
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yumi Kuramoto, Katsumi Shibayama, Takashi Kasahara, Masaki Hirose, Toshimitsu Kawai, Hiroki Oyama
  • Publication number: 20230099533
    Abstract: An image forming apparatus includes a photosensitive member, a charging member, a charging power source, a developing member, a transfer member, a transfer power source, an acquiring portion, and a controller. The controller controls a charging voltage to be a first charging voltage when an electric resistance value of the transfer member is a first resistance value and to be a second charging voltage not less than the first charging voltage in absolute value when the electric resistance value is a second resistance value lower than the first resistance value, and so that a charge amount of the charging voltage when the electric resistance value is changed from the second resistance value to a third resistance value lower than the second resistance value is larger than a change amount of the charging voltage when the electric resistance value is changed from the first resistance value to the second resistance value.
    Type: Application
    Filed: September 16, 2022
    Publication date: March 30, 2023
    Inventors: Masaki Hirose, Taisuke Minagawa, Yusaku Iwasawa
  • Patent number: 11609420
    Abstract: A wafer includes a substrate layer, a first mirror layer having a plurality of two-dimensionally arranged first mirror portions, and a second mirror layer having a plurality of two-dimensionally arranged second mirror portions. A plurality of Fabry-Perot interference filter portions are formed in an effective area, in each of the plurality of Fabry-Perot interference filter portions a gap is formed between the first mirror portion and the second mirror portion. A plurality of dummy filter portions are formed in a dummy area disposed along an outer edge of the substrate layer and surrounding the effective area, in each of the plurality of dummy filter portions an intermediate layer is provided between the first mirror portion and the second mirror portion. At least the second mirror portion is surrounded by the first groove in each of the plurality of Fabry-Perot interference filter portions and the plurality of dummy filter portions.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: March 21, 2023
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Toshimitsu Kawai, Katsumi Shibayama, Takashi Kasahara, Masaki Hirose, Hiroki Oyama, Yumi Kuramoto