Patents by Inventor Masato Tanaka

Masato Tanaka 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: 10871331
    Abstract: A cooling device and a motor are provided. The cooling device that cools a heating element is provided with: a cooling chamber for cooling the heating element with a first cooling medium; a radiator chamber for releasing the heat of the first cooling medium to the outside; and a first connection path and a second connection path for connecting the cooling chamber and the radiator chamber. When part of the first cooling medium in the cooling chamber is gasified, at least part of the gasified first cooling medium moves into the first connection path, thus causing a circulation in which the first cooling medium in the cooling chamber flows into the radiator chamber via the first connection path, and the first cooling medium in the radiator chamber flows into the cooling chamber via the second connection path.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: December 22, 2020
    Assignees: NIDEC CORPORATION, NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY
    Inventors: Quing Yu, Tatsuya Noda, Shunichi Tanaka, Yoshinobu Nakamura, Masato Nakanishi
  • Patent number: 10871733
    Abstract: A belt includes a first layer defining an outer peripheral surface of the belt and a second layer arranged adjacent to the first layer. The first and second layers include a polyimide-based resin. The first layer includes carbon black particles. A part of the carbon black particles which are exposed at the outer peripheral surface of the belt have a size of 5 nm or more and 150 nm or less. The area fraction of the part of the carbon black particles which are exposed at the outer peripheral surface of the belt to the outer peripheral surface of the belt is 2% or more and 35% or less. The belt includes 80 or more conducting points per square micrometer and has a volume resistivity of 10 log ?·cm or more.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: December 22, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Futoshi Takei, Shigeru Fukuda, Satoya Sugiura, Masato Furukawa, Hiroaki Tanaka
  • Patent number: 10870355
    Abstract: This motor driving control apparatus has (A) an inverter unit configured to drive a motor; (B) a separation switch configured to separate a power source from the inverter unit; and (C) a controller configured to instruct the separation switch to separate the power source from the inverter unit and control the inverter unit to perform switching according to a speed and a braking target torque, upon detecting an event that braking should be performed without passing a regenerative current to the power source from the inverter unit. By introducing the separation switch that operates as described above, it becomes possible to perform control so as to consume the power by the motor itself without passing the regenerative current to the power source such as a battery.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: December 22, 2020
    Assignees: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.
    Inventors: Masato Tanaka, Yasuo Hosaka, Hiromi Hagiwara, Teruaki Kawahigashi, Yuto Kajiya, Taichi Yanaoka
  • Patent number: 10860344
    Abstract: Provided is a remote operating system which enables to operate a device by a remote operating device in a simple and reliable manner even if the device to be operated is not equipped with a communication function, or if displayed contents on a monitor screen of the device to be operated are not recognized by the remote operating device. A remote operating system (100) includes: a screen acquisition unit (121); an image determination unit (122); a state providing unit (123); an operation reception unit (131); an operating signal output unit (132); a correct or incorrect operation determination unit (133); and a state database DB. The remote operating system (100) further includes a capture device (141) for capturing an image of a monitor X1 of a device X of interest, and a control interface (142) connected to a keyboard X2 of the object X to be controlled in a superimposed manner.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: December 8, 2020
    Assignee: BICLICK CO., LTD.
    Inventors: Masato Owada, Kengo Tanaka
  • Publication number: 20200356029
    Abstract: A belt includes a first layer defining an outer peripheral surface of the belt and a second layer arranged adjacent to the first layer. The first and second layers include a polyimide-based resin. The first layer includes carbon black particles. A part of the carbon black particles which are exposed at the outer peripheral surface of the belt have a size of 5 nm or more and 150 nm or less. The area fraction of the part of the carbon black particles which are exposed at the outer peripheral surface of the belt to the outer peripheral surface of the belt is 2% or more and 35% or less. The belt includes 80 or more conducting points per square micrometer and has a volume resistivity of 10 log ?·cm or more.
    Type: Application
    Filed: October 2, 2019
    Publication date: November 12, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Futoshi TAKEI, Shigeru FUKUDA, Satoya SUGIURA, Masato FURUKAWA, Hiroaki TANAKA
  • Patent number: 10834272
    Abstract: A reading device includes an imaging element and correcting circuitry. The imaging element is configured to receive light from an object selectively irradiated with visible light or invisible light. The correcting circuitry is configured to apply correction processing based on a difference in an optical characteristic between an invisible light region and a visible light region to an image signal in the invisible light region output from the imaging element and output the image signal corrected.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: November 10, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Masamoto Nakazawa, Tadaaki Oyama, Masahiro Itoh, Masato Tanaka
  • Patent number: 10831133
    Abstract: An endless belt includes a first resin and first conductive carbon particles. In the spatial distribution of the first conductive carbon particles present in an evaluation region of the outer peripheral surface of the endless belt which has a size of 6.3 ?m×4.2 ?m, the integral of the statistic L(r) represented by Formula (1) below from 0.05 ?m to 0.30 ?m with respect to an interparticle distance r is 0 or more and 0.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: November 10, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Satoya Sugiura, Shigeru Fukuda, Futoshi Takei, Daisuke Tanemura, Masato Ono, Masato Furukawa, Hiroaki Tanaka, Shogo Hayashi, Tomoko Suzuki, Masayuki Seko, Koichi Matsumoto, Minoru Rokutan
  • Publication number: 20200348637
    Abstract: Provided is a service menu presentation system which: acquires operation data relating to an electric power generation plant; decides which operation pattern, from among a plurality of operation patterns set in advance in accordance with an output mode, is the basis for the operation being indicated by the operation data; calculates, on the basis of the operation data acquired in a certain period, an operation time with respect to each of the operation patterns in the period; determines, on the basis of an operation time ratio in the certain period, an in-period operation pattern of the certain period; and outputs a service menu corresponding to the in-period operation pattern that has been determined.
    Type: Application
    Filed: October 12, 2017
    Publication date: November 5, 2020
    Inventors: Masato SHIDA, Koji IMAKITA, Akihisa ENDO, Toru TANAKA
  • Publication number: 20200341278
    Abstract: In an aircraft HMD, a visor has toroidally-shaped portions respectively corresponding to left and right eyes of a user, and the toroidally-shaped portions are connected at a substantially central part between the user's eyes. The toroidally-shaped portions are aspherical shapes having a smaller curvature in a vertical direction than in a horizontal direction. Two sets of an image display section and a projection optical system are provided independently corresponding to the left and right toroidally-shaped portions. Due to the difference in curvature, a difference in optical power caused, for example, by a difference in incident angle on the reflecting surface is eliminated. This lessens astigmatism and allows display of an image with a wider visual field. An intermediate image is formed in both the vertical and horizontal directions within the projection optical system or in the middle of an optical path from the projection optical system to the reflecting surface.
    Type: Application
    Filed: September 12, 2018
    Publication date: October 29, 2020
    Applicant: SHIMADZU CORPORATION
    Inventor: Masato TANAKA
  • Publication number: 20200343574
    Abstract: A joining structure includes a first bonded member and a glass portion that is bonded to a surface of the first bonded member. The glass portion includes an interface region not exceeding 5 ?m of the surface of the first bonded member, and an inner region more than 5 ?m from the surface of the first bonded member. The interface region and inner region respectively include rod-shaped crystal particles that have three or more aspect ratios when viewed in cross section. An average orientation angle of the rod-shaped crystal particles included in the interface region is greater than or equal to 60 degrees and less than or equal to 120 degrees. A standard deviation of the orientation angle of the rod-shaped crystal particles included in the inner region is greater than a standard deviation of the orientation angle of the rod-shaped crystal particles included in the interface region.
    Type: Application
    Filed: July 9, 2020
    Publication date: October 29, 2020
    Inventors: Genta TERAZAWA, Masato FUKUMORI, Yuki TANAKA, Takashi RYU, Makoto OHMORI
  • Patent number: 10808305
    Abstract: This invention provides a high-strength PC steel wire having a chemical composition containing, in mass %, C: 0.90 to 1.10%, Si: 0.80 to 1.50%, Mn: 0.30 to 0.70%, P: 0.030% or less, S: 0.030% or less, Al: 0.010 to 0.070%, N: 0.0010 to 0.010%, Cr: 0 to 0.50%, V: 0 to 0.10%, B: 0 to 0.005%, Ni: 0 to 1.0%, Cu: 0 to 0.50%, and the balance: Fe and impurities. A ratio between the Vickers hardness (HvS) at a location (surface layer) that is 0.1D [D: diameter of steel wire] from the surface of the steel wire and the Vickers hardness (HvI) of a region on the inner side relative to the surface layer satisfies the formula [1.10<HvS/HvI?1.15]. An average carbon concentration in a region from the surface to a depth of 10 ?m (outermost layer region) of the steel wire is 0.8 times or less a carbon concentration of the steel wire. The steel micro-structure in the region on the inner side relative to the outermost layer region contains, in area %, a pearlite structure: 95% or more.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: October 20, 2020
    Assignees: NIPPON STEEL CORPORATION, SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Makoto Okonogi, Daisuke Hirakami, Masato Yamada, Katsuhito Oshima, Shuichi Tanaka
  • Publication number: 20200325333
    Abstract: A polyimide resin film includes: a first layer that contains an imide resin, a bond composition ratio of a sum of a C—N bond and a C—O bond to bonds of all C elements that are present in a surface of the first layer being 4 atm % or more, and a second layer that is provided on the surface of the first layer.
    Type: Application
    Filed: December 18, 2019
    Publication date: October 15, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Shigeru FUKUDA, Futoshi TAKEI, Satoya SUGIURA, Masato FURUKAWA, Hiroaki TANAKA, Masato ONO
  • Publication number: 20200326645
    Abstract: A transfer belt includes a resin base material layer and a surface layer, wherein the surface layer contains a polyamide-imide resin A, a siloxane-modified imide resin B, and a conductive material.
    Type: Application
    Filed: December 20, 2019
    Publication date: October 15, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hiroaki TANAKA, Satoya SUGIURA, Shigeru FUKUDA, Masato FURUKAWA, Futoshi TAKEI
  • Patent number: 10800707
    Abstract: Provided are a magnesia carbon brick which does not include graphite yet has excellent spalling and corrosion resistances, and a method for producing thereof. The brick is obtained by adding an organic binder to a refractory raw material mixture followed by kneading, molding, and heat-treating, wherein the mixture includes total 0.1 to 2.0 mass % of pitch and/or carbon black, total 0.1 to 1.0 mass % of aluminum and/or aluminum alloy, 3.0 to 10.0 mass % of magnesia having particle diameter of less than 0.075 mm, and 87.0 to 96.0 mass % of magnesia having particle diameter of 0.075 to 5 mm; and a mass ratio of magnesia having particle diameter of 1 to 5 mm to that of 0.075 to 1 mm is 1.66 to 2.34; graphite is not included therein; and an apparent porosity thereof after heat-treatment under reductive atmosphere at 1400° C. for 3 hours is 8.0% or less.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: October 13, 2020
    Assignees: KROSAKIHARIMA CORPORATION, NIPPON STEEL CORPORATION
    Inventors: Yuya Tomita, Masato Tanaka, Shigeto Sawai
  • Publication number: 20200310324
    Abstract: An image forming apparatus including an image forming unit, a fixing device, and circuitry is provided. The image forming unit is configured to perform a special image forming operation that forms a color toner image and a special toner image with a color toner and a special toner, respectively, on a recording medium and a normal image forming operation that forms the color toner image without forming the special toner image on the recording medium. The fixing device is configured to fix the color toner image and the special toner image on the recording medium. The circuitry is configured to perform, in the special image forming operation, a toner amount suppression control that makes an amount of the color toner on the recording medium per unit area smaller than that in the normal image forming operation.
    Type: Application
    Filed: June 17, 2020
    Publication date: October 1, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Masato TANAKA, Keiji KUNIMI, Masaki YOSHINO, Kazumi SUZUKI
  • Patent number: 10787597
    Abstract: A working fluid for heat cycle, wherein the global warming potential is less than 300; the product of the relative coefficient of performance and the relative refrigerating capacity is at least 0.820 relative to R410A in a standard refrigerating cycle under conditions of an evaporation temperature of 0° C., a condensing temperature of 40° C., a supercoiling degree of 5° C. and a degree of superheat of 5° C.; the relative compressor discharge gas pressure is at most 1.100; the lower limit of the combustion range by method A in High Pressure Gas Safety Act is at least 5 vol %; and the pressure will not exceed 2.00 MPaG in a combustion test by method A in High Pressure Gas Safety act under 0.98 MPaG at 250° C.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: September 29, 2020
    Assignee: AGC Inc.
    Inventors: Masato Fukushima, Hiroaki Mitsuoka, Mai Tasaka, Satoshi Kawaguchi, Katsuya Ueno, Toshiyuki Tanaka, Hidekazu Okamoto, Tetsuo Otsuka, Yoshinobu Kadowaki, Tatsuhiro Nogami, Daisuke Shirakawa, Hirokazu Takagi, Takeaki Arai
  • Publication number: 20200284988
    Abstract: An optical connection structure includes a first spatial multiplex transmission line, a second spatial multiplex transmission line, a first lens arrangement, a second lens arrangement and a first beam diameter conversion portion. The first spatial multiplex transmission line has a plurality of first transmission lines. The second spatial multiplex transmission line has a plurality of second transmission lines. The first lens arrangement is optically coupled with the first spatial multiplex transmission line. The second lens arrangement is optically coupled with the second spatial multiplex transmission line. The first beam diameter conversion portion has a first end face and a second end face and arranged between the first spatial multiplex transmission line and the first lens arrangement. The first beam diameter conversion portion is configured such that an optical diameter at the second end face is larger than an optical diameter at the first end face.
    Type: Application
    Filed: February 28, 2020
    Publication date: September 10, 2020
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Masato TANAKA, Hidehisa TAZAWA, Osamu SHIMAKAWA, Takafumi OHTSUKA
  • Patent number: 10761468
    Abstract: An image forming apparatus is provided. The image forming apparatus includes an image forming unit containing a special recording material and circuitry configured to control the image forming unit to form a hardly visible image on a recording medium with the special recording material. The hardly visible image is formed of a halftone dot image comprising isolated dots in a number smaller than that of isolated dots forming a visible image having the same image area ratio as the hardly visible image.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: September 1, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Masato Tanaka, Keiji Kunimi
  • Patent number: 10752974
    Abstract: This invention provides a high-strength PC steel wire having a chemical composition containing, in mass %, C: 0.90 to 1.10%, Si: 0.80 to 1.50%, Mn: 0.30 to 0.70%, P: 0.030% or less, S: 0.030% or less, Al: 0.010 to 0.070%, N: 0.0010 to 0.010%, Cr: 0 to 0.50%, V: 0 to 0.10%, B: 0 to 0.005%, Ni: 0 to 1.0%, Cu: 0 to 0.50%, and the balance: Fe and impurities. A ratio between the Vickers hardness (HvS) at a location (surface layer) that is 0.1D [D: diameter of steel wire] from the surface of the steel wire and the Vickers hardness (HvI) of a region on the inner side relative to the surface layer satisfies the formula [1.10<HvS/HvI?1.15]. The steel micro-structure in the region from the surface of the steel wire to 0.01D (outermost layer region) consists of, in area %, a pearlite structure: less than 80%, and the balance: a ferrite structure and/or a bainitic structure.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: August 25, 2020
    Assignees: NIPPON STEEL CORPORATION, SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Makoto Okonogi, Daisuke Hirakami, Masato Yamada, Katsuhito Oshima, Shuichi Tanaka
  • Patent number: 10732542
    Abstract: An image forming apparatus including an image forming unit, a unit holder, and circuitry is provided. The image forming unit includes a color toner unit, a replaceable black toner unit, and a replaceable special toner unit that form a color toner image, a black toner image, and a special toner image, respectively. The unit holder selectively and detachably holds the replaceable black toner unit or the replaceable special toner unit. The circuitry controls the image forming unit to perform: a normal operation, when the unit holder holds the replaceable black toner unit, that forms a color-black image; a special operation, when the unit holder holds the replaceable special toner unit, that forms a color-special image; and a toner amount increase control that increases an amount of the color toner per unit area in the color toner image in the special operation than that in the normal operation.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: August 4, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Masato Tanaka, Keiji Kunimi, Masanori Kawasumi