Patents by Inventor Hiroyuki Fukuhara

Hiroyuki Fukuhara 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: 10760563
    Abstract: A refrigerant compressor reserves lubricating oil with a viscosity of VG2 to VG100 in a sealed container, and accommodates therein an electric component and a compression component which is driven by the electric component and compresses a refrigerant. The compression component includes at least one slide member comprising a base material 171 made of an iron-based material and an oxide coating film 170 provided on a surface of the base material 171. The oxide coating film 170 includes: a portion containing diiron trioxide (Fe2O3), in a region which is closer to an outermost surface of the oxide coating film; and a silicon containing portion containing silicon (Si) which is more in quantity than silicon (Si) of the base material 171, in a region which is closer to the base material 171.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: September 1, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshinori Ishida, Shingo Oyagi, Hiroyuki Fukuhara, Hirotaka Kawabata
  • Patent number: 10704541
    Abstract: A slide member of the present invention is used in a slide unit which is included in a refrigerant compressor for compressing a refrigerant and provided inside a sealed container which reserves lubricating oil therein. The slide member is provided with an oxide coating film on a surface of a base material. The oxide coating film is configured such that (1) when the base material comprises an iron based material, the oxide coating film has a three-layer structure including a first layer comprising Fe2O3, a second layer comprising Fe3O4, and a third layer comprising FeO in this order from an outermost surface, (2) the oxide coating film has a dense structure having minute concave/convex portions with a height difference which falls within a range of 0.01 ?m to 0.1 ?m, or (3) when the base material comprises the iron based material, the oxide coating film has a three-layer structure in which the three layers comprise the iron oxides and are different in hardness.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: July 7, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshinori Ishida, Hirotaka Kawabata, Hiroyuki Fukuhara, Yuichiro Kume, Yoshiyuki Futagami
  • Patent number: 10698335
    Abstract: An optical scanning apparatus, including: a detector configured to detect a writing start position of a light beam emitted from a light source and reflected by a rotary polygon mirror; and a control circuit board electrically connected to the light source, wherein the detector is fixed to the control circuit board, the control circuit board includes a first connection portion at which the light source is connected to the control circuit board and a second connection portion through which the control circuit board and an exterior are electrically connected, the control circuit board is fixed to an optical box by a fixing unit, and the fixing unit is arranged, between the first connection portion and the second connection portion, on a second straight line orthogonal to a first straight line connecting the light source and the detector, so as to be closer to the detector than to the light source.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: June 30, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Nishiguchi, Hiroyuki Fukuhara
  • Publication number: 20200196716
    Abstract: In this molded surface fastener, an engaging element includes a columnar stem portion, and micro pawl portions protruding outward from an upper end outer peripheral edge of the stem portion in a plan view of the engaging elements. A pawl width dimension of the micro pawl portions is smaller than a line segment connecting two points on the upper end outer peripheral edge of the stem portion. The micro pawl portions protrude toward a base portion. This molded surface fastener has a high peel strength and a shear strength with respect to a female surface fastener.
    Type: Application
    Filed: March 3, 2020
    Publication date: June 25, 2020
    Inventors: Yoshiyuki Fukuhara, Hiroyuki Yamashita, Makoto Takekawa, Takahiro Fuse
  • Publication number: 20200196715
    Abstract: In this molded surface fastener, plural engaging elements having a stem portion and an engaging head portion formed integrally on the stem portion are standing on the base portion, at least one pawl portion having a pawl width dimension narrower than a width dimension at a boundary between the stem portion and the engaging head portion is protruded on an outer peripheral edge part of the engaging head portion, and a back surface of pawl of the pawl portion is formed at different angles with respect to a back surface of head portion of the engaging head portion. Such a molded surface fastener of the present invention has a substantial engaging force with respect to a female surface fastener and can make a texture of its surface comfortable.
    Type: Application
    Filed: March 3, 2020
    Publication date: June 25, 2020
    Inventors: Yoshiyuki Fukuhara, Hiroyuki Yamashita, Takahiro Fuse, Isamu Michihata, Yui Hashimoto
  • Publication number: 20200162053
    Abstract: A surface acoustic wave device is disclosed. The surface acoustic wave device can include a ceramic substrate, a piezoelectric layer over the ceramic substrate, and an interdigital transducer electrode over the piezoelectric layer. The ceramic substrate can be a polycrystalline spinel substrate. The surface acoustic wave device can also include a temperature compensating layer over the interdigital transducer electrode.
    Type: Application
    Filed: November 11, 2019
    Publication date: May 21, 2020
    Inventors: Rei Goto, Hironori Fukuhara, Hiroyuki Nakamura, Keiichi Maki
  • Publication number: 20200107617
    Abstract: Provided is a molding apparatus used for manufacturing a molded surface fastener wherein a die wheel driving rotationally has a concentric double cylinder structure provided with an outer side cylindrical body that has provided therethrough a plurality of penetrating holes, and an inner side cylindrical body that has formed, in the outer peripheral surface thereof, a plurality of grooved portions, the grooved portions located in the inner side cylindrical body include a use grooved portion that intersects with the penetrating hole of the outer side cylindrical body and a non-use grooved portion that is covered by the inner peripheral surface of the outer side cylindrical body. By using this molding apparatus obtained is a molded surface fastener in which a plurality of types of engaging elements having different shapes in a plan view are arranged cyclically in a reference direction.
    Type: Application
    Filed: April 3, 2017
    Publication date: April 9, 2020
    Inventors: Makoto Takekawa, Yoshiyuki Fukuhara, Hiroyuki Yamashita, Isamu Michihata, Yui Hashimoto
  • Publication number: 20200071118
    Abstract: A sheet processing apparatus that forms a folding line on a sheet includes first and second folding rollers that form a folding line on the sheet by rotating a bent sheet while pinching from sheet surfaces and a first pressing unit that presses the second folding roller against the first folding roller in an arbitrary portion in a rotating shaft direction of the second folding roller.
    Type: Application
    Filed: November 8, 2019
    Publication date: March 5, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Ken Sawada, Shigeru Mizuno, Hiroyuki Kuno, Takuya Fukuhara
  • Patent number: 10519000
    Abstract: A sheet processing apparatus that forms a folding line on a sheet includes first and second folding rollers that form a folding line on the sheet by rotating a bent sheet while pinching from sheet surfaces and a first pressing unit that presses the second folding roller against the first folding roller in an arbitrary portion in a rotating shaft direction of the second folding roller.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: December 31, 2019
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Ken Sawada, Shigeru Mizuno, Hiroyuki Kuno, Takuya Fukuhara
  • Publication number: 20190332029
    Abstract: An optical scanning apparatus includes a deflector to deflect laser light emitted from a light source for scanning, and a detection unit attached to a substrate provided with a through-hole for the detection unit to receive laser light that has passed through the through-hole. The substrate is attached to an optical box that is to store the deflector. The detection unit detects the laser light to control an irradiation position on a scanned surface of the laser light reflected by the deflector. The optical box is provided with a passing portion to guide the laser light emitted from the light source to the detection unit, and protruded portions disposed around the passing portion and protruded toward the substrate side. The substrate is attached to the optical box in a state where the protruded portions are engaged with walls forming the through-hole.
    Type: Application
    Filed: April 2, 2019
    Publication date: October 31, 2019
    Inventor: Hiroyuki Fukuhara
  • Patent number: 10429898
    Abstract: An electronic device includes a housing having an opening, a connection terminal located in an opening in the housing, and a terminal cover including a first resin member having a first surface facing the connection terminal and a second surface located opposite to the first surface and a second resin member located on the second surface. At least a portion of the second resin member covers a depression located on an outer peripheral portion of the first surface of the first resin member.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: October 1, 2019
    Assignee: KYOCERA CORPORATION
    Inventors: Yuki Yoshioka, Kengo Suzuki, Shuichi Kutsuzawa, Hiroyuki Fukuhara
  • Publication number: 20190265608
    Abstract: An optical scanning apparatus, including: a detector configured to detect a writing start position of a light beam emitted from a light source and reflected by a rotary polygon mirror; and a control circuit board electrically connected to the light source, wherein the detector is fixed to the control circuit board, the control circuit board includes a first connection portion at which the light source is connected to the control circuit board and a second connection portion through which the control circuit board and an exterior are electrically connected, the control circuit board is fixed to an optical box by a fixing unit, and the fixing unit is arranged, between the first connection portion and the second connection portion, on a second straight line orthogonal to a first straight line connecting the light source and the detector, so as to be closer to the detector than to the light source.
    Type: Application
    Filed: May 14, 2019
    Publication date: August 29, 2019
    Inventors: Tetsuya Nishiguchi, Hiroyuki Fukuhara
  • Patent number: 10338491
    Abstract: An optical scanning apparatus according to the present invention includes a light source, and a substrate including an electric circuit for causing the light source to emit light. The number of holes in the substrate into which terminals in the light source are respectively inserted is larger than the number of the terminals, so that the substrate can also be used for another light source including a different number of terminals.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: July 2, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Nagatoshi, Hiroyuki Fukuhara
  • Publication number: 20190199458
    Abstract: A threshold determination device aims to automatically determine and change a threshold regarding whether to permit a wireless connection between a base station device and a terminal device depending on wireless communication environments. The threshold determination device is adapted to the base station device configured to measure the received power of a connection request signal from the terminal device and is configured to determine a threshold regarding whether to permit the terminal device to be connected to the base station device in connection with a communication quality indicator (e.g. a user throughput or a terminal connection count). The base station device does not permit a wireless connection with the terminal device when the received power is lower than the threshold. The threshold determination device changes the threshold depending on a target value and a measured value of the communication quality indicator.
    Type: Application
    Filed: December 17, 2018
    Publication date: June 27, 2019
    Applicant: KDDI CORPORATION
    Inventors: Tadayuki FUKUHARA, Hiroyuki SHINBO
  • Patent number: 10274858
    Abstract: An image forming apparatus includes a scanner unit configured to emit light depending on image information, the scanner unit including an optical element and an optical box provided with an opening and configured to accommodate the optical element; and an outer cover of the image forming apparatus. The optical box has an open portion uncovering the optical element. The open portion of the optical box faces the outer cover.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: April 30, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroyuki Fukuhara
  • Patent number: 10197942
    Abstract: An image-forming apparatus includes a light-irradiation unit configured to move a spot of laser light on a surface of a photosensitive member at a non-constant scanning velocity in a main scanning direction to form a latent image on the photosensitive member, an image data correcting unit configured to correct a length in the main scanning direction of image data by inserting one or more image data pieces into the image data, the number of the image data pieces increasing as the scanning velocity increases, and/or extracting one or more image data pieces from the image data, the number of the image data pieces increasing as the scanning velocity decreases, and a brightness correcting unit configured to correct a brightness of the laser light so that an emission brightness increases as the scanning velocity increases and/or the emission brightness decreases as the scanning velocity decreases.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: February 5, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Kawana, Kazuyuki Ishihara, Yuuji Takayama, Hikaru Uchidate, Yoshihiko Tanaka, Hiroyuki Fukuhara, Shuichi Kurokawa
  • Publication number: 20180340717
    Abstract: A refrigerant compressor reserves lubricating oil in a sealed container, and accommodates therein an electric component, and a compression component which is driven by the electric component and compresses a refrigerant. At least one of slide members included in the compression component is made of an iron-based material, and an oxide coating film comprising a composition A portion, a composition B portion, and a composition C portion is provided on a slide surface of the iron-based material. The composition A portion is a portion containing diiron trioxide (Fe2O3) which is more in quantity than other substances, and is, for example, an outermost portion (160a). The composition B portion is a portion containing triiron tetraoxide (Fe3O4) which is more in quantity than other substances and containing a silicon (Si) compound, and is, for example, an intermediate portion (160b).
    Type: Application
    Filed: August 26, 2016
    Publication date: November 29, 2018
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shingo OYAGI, Yoshinori ISHIDA, Hirotaka KAWABATA, Hiroyuki FUKUHARA
  • Publication number: 20180340527
    Abstract: A refrigerant compressor comprises an electric component; and a compression component which is driven by the electric component and compresses a refrigerant. At least one of slide members included in the compression component is made of an iron-based material. An oxide coating film (150) is provided on a slide surface of the iron-based material, the oxide coating film including a first portion (151), a second portion (152), and/or a third portion (153). The first portion (151) contains at least fine crystals (155). The second portion (152) contains columnar grains (156). The third portion (153) contains layered grains (157).
    Type: Application
    Filed: August 26, 2016
    Publication date: November 29, 2018
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoshinori ISHIDA, Shingo OYAGI, Hiroyuki FUKUHARA, Hirotaka KAWABATA
  • Publication number: 20180275557
    Abstract: An image-forming apparatus includes a light-irradiation unit configured to move a spot of laser light on a surface of a photosensitive member at a non-constant scanning velocity in a main scanning direction to form a latent image on the photosensitive member, an image data correcting unit configured to correct a length in the main scanning direction of image data by inserting one or more image data pieces into the image data, the number of the image data pieces increasing as the scanning velocity increases, and/or extracting one or more image data pieces from the image data, the number of the image data pieces increasing as the scanning velocity decreases, and a brightness correcting unit configured to correct a brightness of the laser light so that an emission brightness increases as the scanning velocity increases and/or the emission brightness decreases as the scanning velocity decreases.
    Type: Application
    Filed: May 25, 2018
    Publication date: September 27, 2018
    Inventors: Takashi Kawana, Kazuyuki Ishihara, Yuuji Takayama, Hikaru Uchidate, Yoshihiko Tanaka, Hiroyuki Fukuhara, Shuichi Kurokawa
  • Patent number: 10078288
    Abstract: An image forming apparatus includes: a rotating polygonal mirror having reflection surfaces, and to reflect a luminous flux at each reflection surface so as to scan a photosensitive member; a detection unit configured to detect the luminous flux; a measurement unit configured to measure an interval between time points at which the detection unit detects the luminous flux; a storage unit configured to store correction value data for correcting an image signal for each reflection surface relative to a reference reflection surface; and a specification unit configured to select a characteristic value from among a plurality of values that are obtained from results of measurements, and to specify the reference reflection surface based on the characteristic value. The plurality of values include results of predetermined operations performed on two or more intervals measured by the measurement unit.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: September 18, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hiroyuki Fukuhara