Patents by Inventor Masayuki Fujii
Masayuki Fujii 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).
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Publication number: 20240379971Abstract: An object is to provide a fuel cell separator and a manufacturing method thereof realizing excellent strength, electrical conductivity, and gas barrier property. The present invention is related to a fuel cell separator and a manufacturing method thereof, the fuel cell separator comprising: a plate that contains graphite and resin and comprises, on surfaces thereof, grooves, serving as flow paths; and surface layer films, that cover the surfaces on both sides of the plate in a thickness direction thereof, including the grooves, and the surfaces of the plate other than the grooves, wherein the surface layer films, contain resin and carbon nanotubes.Type: ApplicationFiled: March 24, 2022Publication date: November 14, 2024Inventors: Masahiro TESHIMA, Masayuki Honda, Noritaka SAKUTA, Tomoya FUJII
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Publication number: 20240326123Abstract: A casting die of the present invention includes a stationary die, a movable die, and a sliding die provided to the movable die so as to be insertable and withdrawable in a direction crossing a movement direction of the movable die and configured to form a cavity in collaboration with the stationary die and the movable die. The sliding die includes a slider core that is moved so as to be insertable and withdrawable along the movement direction of the movable die and a stopper that is in contact with the slider core at a die closing position and locks the slider core.Type: ApplicationFiled: February 23, 2024Publication date: October 3, 2024Inventors: Masayuki HATTORI, Sota SHINDO, Kanji FUJII, Tomonori SAKAI, Kenichi FUKUNAGA
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Publication number: 20240321995Abstract: A semiconductor device of embodiments includes: a first electrode; a second electrode; an oxide semiconductor layer provided between the first electrode and the second electrode and including a first region, a second region, and a third region between the first region and the second region; a gate electrode facing the third region; a first insulating layer facing the first region; a second insulating layer facing the second region; and a gate insulating layer between the gate electrode and the oxide semiconductor layer, containing oxygen (O) and at least one metal element selected from a group consisting of Al, Hf, Zr, La, Y, Zn, In, Sn, and Ga, and having a chemical composition different from that of the oxide semiconductor layer.Type: ApplicationFiled: June 27, 2023Publication date: September 26, 2024Applicant: Kioxia CorporationInventors: Masaya TODA, Kazuhiro MATSUO, Kota TAKAHASHI, Kenichiro TORATANI, Shosuke FUJII, Shoichi KABUYANAGI, Masayuki TANAKA, Wakako MORIYAMA
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Patent number: 12083586Abstract: A casting die of the present invention includes a stationary die, a movable die, and a sliding die provided to the movable die so as to be insertable and withdrawable in a direction crossing a movement direction of the movable die and configured to form a cavity in collaboration with the stationary die and the movable die. The sliding die includes a slider core that is moved so as to be insertable and withdrawable along the movement direction of the movable die and a stopper that is in contact with the slider core at a die closing position and locks the slider core.Type: GrantFiled: February 23, 2024Date of Patent: September 10, 2024Assignee: HONDA MOTOR CO., LTD.Inventors: Masayuki Hattori, Sota Shindo, Kanji Fujii, Tomonori Sakai, Kenichi Fukunaga
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Publication number: 20220268500Abstract: A compressor system includes a first pipe including a first pipe main body that forms a flow path therein and a first flange that projects from the first pipe main body to an outer peripheral side, and a second pipe including a second pipe main body that forms a flow path therein and a second flange that projects from the second pipe main body to an outer peripheral side and faces the first flange, a bellows provided so as to surround an entire circumference between the first flange and the second flange, and an excitation force reducing portion provided to separate the flow path and the bellows in a space between the first flange and the second flange and formed of a stretchable porous material.Type: ApplicationFiled: January 12, 2022Publication date: August 25, 2022Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Hiroyuki Miyata, Masahiro Kobayashi, Masayuki Fujii
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Patent number: 11072191Abstract: An image forming apparatus includes a printing device to print, on a recording medium, a colorimetric pattern including a plurality of colorimetric patches; an imaging device; a conveyor to convey the recording medium in a conveyance direction; and circuitry. The circuitry causes the printing device to form a plurality of marker patterns on a side of the colorimetric pattern and at predetermined intervals in the conveyance direction so that one of the marker patterns is downstream from a first row of the colorimetric patches in the conveyance direction; causes the conveyor to convey the recording medium to position the colorimetric pattern at a reading position by the imaging device based on a distance between the plurality of marker patterns and the colorimetric pattern in the conveyance direction; and causes the imaging device to read the colorimetric pattern on the recording medium.Type: GrantFiled: July 30, 2019Date of Patent: July 27, 2021Assignee: RICOH COMPANY, LTD.Inventors: Osamu Kizaki, Masayuki Fujii, Suguru Masunaga
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Patent number: 10766282Abstract: An image forming apparatus includes a conveyance device to convey a recording medium in a first direction and a second direction opposite the first direction; an image forming device; an imaging device; and circuitry to control the image forming apparatus. Controlled by the circuitry, the image forming device forms the colorimetric pattern on the recording medium that has been conveyed in the first direction by a predetermined distance after the marker pattern is formed. Controlled by the circuitry, after the colorimetric pattern is fixed, the circuitry causes the conveyance device to convey the recording medium in the second direction by an amount equivalent to a distance from the marker pattern to an imaging position by the imaging device plus a margin, conveys the recording medium in the first direction until the imaging device detects the marker pattern, and conveys the recording medium in the first direction to a colorimetry position.Type: GrantFiled: March 6, 2019Date of Patent: September 8, 2020Assignee: Ricoh Company, Ltd.Inventors: Masayuki Fujii, Nobuyuki Satoh, Suguru Masunaga, Satoshi Iwanami
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Publication number: 20200248953Abstract: A network system includes a refrigerator, a terminal, and a server capable of communicating with the refrigerator and the terminal. After pairing between the refrigerator and the terminal is completed, each time a door of the refrigerator is opened/closed, the server sends information to the terminal to notify that the door of the refrigerator is opened/closed, until the number of times of opening the door of the refrigerator reaches a predetermined value.Type: ApplicationFiled: January 31, 2020Publication date: August 6, 2020Inventor: MASAYUKI FUJII
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Publication number: 20200039250Abstract: An image forming apparatus includes a printing device to print, on a recording medium, a colorimetric pattern including a plurality of colorimetric patches; an imaging device; a conveyor to convey the recording medium in a conveyance direction; and circuitry. The circuitry causes the printing device to form a plurality of marker patterns on a side of the colorimetric pattern and at predetermined intervals in the conveyance direction so that one of the marker patterns is downstream from a first row of the colorimetric patches in the conveyance direction; causes the conveyor to convey the recording medium to position the colorimetric pattern at a reading position by the imaging device based on a distance between the plurality of marker patterns and the colorimetric pattern in the conveyance direction; and causes the imaging device to read the colorimetric pattern on the recording medium.Type: ApplicationFiled: July 30, 2019Publication date: February 6, 2020Applicant: Ricoh Company, Ltd.Inventors: Osamu KIZAKI, Masayuki FUJII, Suguru MASUNAGA
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Publication number: 20190283469Abstract: An image forming apparatus includes a conveyance device to convey a recording medium in a first direction and a second direction opposite the first direction; an image forming device; an imaging device; and circuitry to control the image forming apparatus. Controlled by the circuitry, the image forming device forms the colorimetric pattern on the recording medium that has been conveyed in the first direction by a predetermined distance after the marker pattern is formed. Controlled by the circuitry, after the colorimetric pattern is fixed, the circuitry causes the conveyance device to convey the recording medium in the second direction by an amount equivalent to a distance from the marker pattern to an imaging position by the imaging device plus a margin, conveys the recording medium in the first direction until the imaging device detects the marker pattern, and conveys the recording medium in the first direction to a colorimetry position.Type: ApplicationFiled: March 6, 2019Publication date: September 19, 2019Applicant: Ricoh Company, Ltd.Inventors: Masayuki Fujii, Nobuyuki Satoh, Suguru Masunaga, Satoshi Iwanami
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Patent number: 9744785Abstract: A medium identification device identifies a type of a recording medium used for image formation. The medium identification device includes: a two-dimensional image sensor that captures an image of the recording medium; and an identifying unit that obtains a glossiness evaluation value indicating glossiness of the recording medium, a surface roughness evaluation value indicating surface roughness of the recording medium, and a coloring evaluation value indicating coloring of the recording medium, using image data of a specular reflection region reflecting specular reflection light from the recording medium and image data of a diffused reflection region reflecting diffused reflection light from the recording medium, the regions being in the image of the recording medium, and identifies the type of the recording medium by combining determination using the glossiness evaluation value, determination using the surface roughness evaluation value, and determination using the coloring evaluation value.Type: GrantFiled: May 3, 2016Date of Patent: August 29, 2017Assignee: RICOH COMPANY, LTD.Inventors: Suguru Yokozawa, Nobuyuki Satoh, Mamoru Yorimoto, Kenji Morita, Masayuki Fujii, Daisaku Horikawa
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Patent number: 9716124Abstract: An apparatus includes: a light source; a two-dimensional image sensor that receives reflected light from a subject including specular light of the source and outputs an image of the subject; and an optical member arranged in an optical path of light emitted from the source to the subject. When a specular position of the source in the subject arranged apart from the two-dimensional image sensor by a certain distance is defined as a first specular position, whereas a specular position of the source in the optical member is defined as a second specular position, a relative positional relation of the optical member and the source with respect to the two-dimensional image sensor is determined so that a difference between an incident angle from the source toward the first specular position and an incident angle from the source toward the second specular position is a reference value or more.Type: GrantFiled: December 8, 2014Date of Patent: July 25, 2017Assignee: RICOH COMPANY, LTD.Inventors: Mamoru Yorimoto, Nobuyuki Satoh, Masato Kobayashi, Masayuki Fujii, Hiroshi Matsumoto, Daisaku Horikawa, Suguru Yokozawa, Kenji Morita
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Patent number: 9549097Abstract: An imaging device comprises: a two-dimensional image sensor that includes a plurality of light receiving units capable of reading an output value individually according to a volume of received light thereof; a receiving unit that receives a control signal that specifies an operation mode of the two-dimensional image sensor that is predetermined according to a purpose of using the output value; and a sensor controller that sets, on the basis of the control signal received by the receiving unit, an imaging area representing an area of a light receiving unit that reads the output value from among the light receiving units of the two-dimensional image sensor and controls reading of the output value.Type: GrantFiled: December 9, 2014Date of Patent: January 17, 2017Assignee: Ricoh Company, Ltd.Inventors: Hiroshi Matsumoto, Nobuyuki Satoh, Mamoru Yorimoto, Masato Kobayashi, Masayuki Fujii, Satoshi Hirata
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Publication number: 20160243866Abstract: A medium identification device identifies a type of a recording medium used for image formation. The medium identification device includes: a two-dimensional image sensor that captures an image of the recording medium; and an identifying unit that obtains a glossiness evaluation value indicating glossiness of the recording medium, a surface roughness evaluation value indicating surface roughness of the recording medium, and a coloring evaluation value indicating coloring of the recording medium, using image data of a specular reflection region reflecting specular reflection light from the recording medium and image data of a diffused reflection region reflecting diffused reflection light from the recording medium, the regions being in the image of the recording medium, and identifies the type of the recording medium by combining determination using the glossiness evaluation value, determination using the surface roughness evaluation value, and determination using the coloring evaluation value.Type: ApplicationFiled: May 3, 2016Publication date: August 25, 2016Inventors: Suguru YOKOZAWA, Nobuyuki SATOH, Mamoru YORIMOTO, Kenji MORITA, Masayuki FUJII, Daisaku HORIKAWA
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Patent number: 9370930Abstract: A nozzle testing device includes: a two-dimensional image sensor to capture an image of a pattern formed on a recording object by discharging ink from a nozzle row while moving the nozzle row and the recording object relative to each other in a direction orthogonal to the nozzle row; a light source unit provided such that regularly reflected light by the pattern forms a regular reflection area in the image of the pattern captured by the two-dimensional image sensor; and a detection unit to analyze the image to detect discharge failure of the nozzles. The regular reflection area is formed in the image such that a dimension in a direction corresponding to the direction of relative movement between the nozzle row and the recording object is greater than a dimension in a direction orthogonal to the direction corresponding to the direction of relative movement in the image.Type: GrantFiled: June 29, 2015Date of Patent: June 21, 2016Assignee: RICOH COMPANY, LTD.Inventors: Daisaku Horikawa, Nobuyuki Satoh, Mamoru Yorimoto, Kenji Morita, Masayuki Fujii, Suguru Yokozawa, Masahiro Hiranuma, Yuichi Sakurada, Tomohiro Sasa, Masaya Kawarada
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Patent number: 9367013Abstract: An imaging device includes: a housing having an opening in a surface thereof facing a subject; a light source that irradiates the subject with light; a two-dimensional image sensor that captures, from inside of the housing through the opening; an image of the subject illuminated by the light source; an optical member that is disposed between the two-dimensional image sensor and the opening and that transmits light reflected off the subject; and a contamination inspection member that is disposed between the opening and the optical member and that causes inspection light for inspecting contamination on the optical member to be incident upon the two-dimensional image sensor via the optical member.Type: GrantFiled: July 1, 2015Date of Patent: June 14, 2016Assignee: RICOH COMPANY, LTD.Inventors: Kenji Morita, Nobuyuki Satoh, Mamoru Yorimoto, Masayuki Fujii, Daisaku Horikawa, Suguru Yokozawa, Masahiro Hiranuma, Masaya Kawarada
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Patent number: 9358813Abstract: A medium identification device identifies a type of a recording medium used for image formation. The medium identification device includes: a two-dimensional image sensor that captures an image of the recording medium; and an identifying unit that obtains a glossiness evaluation value indicating glossiness of the recording medium, a surface roughness evaluation value indicating surface roughness of the recording medium, and a coloring evaluation value indicating coloring of the recording medium, using image data of a specular reflection region reflecting specular reflection light from the recording medium and image data of a diffused reflection region reflecting diffused reflection light from the recording medium, the regions being in the image of the recording medium, and identifies the type of the recording medium by combining determination using the glossiness evaluation value, determination using the surface roughness evaluation value, and determination using the coloring evaluation value.Type: GrantFiled: July 29, 2015Date of Patent: June 7, 2016Assignee: RICOH COMPANY, LTD.Inventors: Suguru Yokozawa, Nobuyuki Satoh, Mamoru Yorimoto, Kenji Morita, Masayuki Fujii, Daisaku Horikawa
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Patent number: 9347873Abstract: An image forming apparatus includes a printing unit that prints at least one object image using a color material; a color information acquiring unit that acquires color information of the object image; and a control unit that starts one of colorimetry of the object image using the color information acquired by the color information acquiring unit and color adjustment of the printing unit after a variation amount of color information of the object image measured at different points of time is equal to or smaller than a predetermined threshold.Type: GrantFiled: December 8, 2014Date of Patent: May 24, 2016Assignee: Ricoh Company, Ltd.Inventors: Masayuki Fujii, Nobuyuki Satoh, Mamoru Yorimoto, Masato Kobayashi, Hiroshi Matsumoto, Daisaku Horikawa, Suguru Yokozawa, Kenji Morita, Yuichi Sakurada, Tomohiro Sasa, Masaya Kawarada
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Patent number: 9288367Abstract: A glossiness determining device includes: a light source; a two-dimensional sensor that receives reflected light containing a specular reflection component of a subject illuminated by the light source, and outputs an image of the subject; and a determining unit that determines glossiness of the subject by using a saturated image, which is the image of the subject output by the two-dimensional sensor and in which pixel values of a partial area are saturated.Type: GrantFiled: September 10, 2014Date of Patent: March 15, 2016Assignee: Ricoh Company, Ltd.Inventors: Satoshi Hirata, Nobuyuki Satoh, Yasuyuki Suzuki, Hideaki Suzuki, Satoshi Iwanami, Mamoru Yorimoto, Masayuki Fujii, Masato Kobayashi, Hiroshi Matsumoto
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Publication number: 20160031250Abstract: A medium identification device identifies a type of a recording medium used for image formation. The medium identification device includes: a two-dimensional image sensor that captures an image of the recording medium; and an identifying unit that obtains a glossiness evaluation value indicating glossiness of the recording medium, a surface roughness evaluation value indicating surface roughness of the recording medium, and a coloring evaluation value indicating coloring of the recording medium, using image data of a specular reflection region reflecting specular reflection light from the recording medium and image data of a diffused reflection region reflecting diffused reflection light from the recording medium, the regions being in the image of the recording medium, and identifies the type of the recording medium by combining determination using the glossiness evaluation value, determination using the surface roughness evaluation value, and determination using the coloring evaluation value.Type: ApplicationFiled: July 29, 2015Publication date: February 4, 2016Inventors: Suguru YOKOZAWA, Nobuyuki SATOH, Mamoru YORIMOTO, Kenji MORITA, Masayuki FUJII, Daisaku HORIKAWA