Patents by Inventor Yohei Doi

Yohei Doi 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: 10980811
    Abstract: Compounds, pharmaceutical compositions, and methods for reversing fosfomycin resistance are disclosed. Embodiments of the disclosed compounds inhibit fosfomycin-inhibiting enzymes. Some embodiments of the compounds are FosA inhibitors. The disclosed pharmaceutical compositions include (i) fosfomycin or a pharmaceutically acceptable salt thereof and (ii) a compound, or a pharmaceutically acceptable salt thereof, which inhibits a fosfomycin-inhibiting enzyme. A method of inhibiting growth of a fosfomycin-resistant bacterium includes contacting the bacterium with (i) fosfomycin or a pharmaceutically acceptable salt thereof and (ii) an effective amount of a disclosed compound or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: April 20, 2021
    Assignees: University of Pittsburgh—of the Commonwealth System of Higher Education, University of Maryland, Baltimore
    Inventors: Nicolas Paul Sluis-Cremer, Adam Daniel Tomich, Yohei Doi, Eric J. Sundberg, Erik H. Klontz, Steven Fletcher
  • Patent number: 10981307
    Abstract: A method of producing a molded product includes preparing a mold for insert molding, setting an insert member, forming a cavity in a condition in which the insert member is disposed by closing the mold and injecting a molten resin into the cavity. The mold for insert molding includes first and second molds, and the first mold has a guide surface provided at a part corresponding to a trunk portion of the molded product within a wall surface defining a groove portion which constitutes a part of the cavity. The insert member is set at the groove portion of the first mold while the projecting portion being guided by the guide surface.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: April 20, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masaaki Udagawa, Yohei Doi, Daigo Kobayashi
  • Publication number: 20210088947
    Abstract: A fixing unit or device that can be used in an image forming apparatus includes a first heater element that is formed of a material that increases in electrical resistance with increases in temperature. A controller of the fixing unit is configured to vary a duty ratio of electric power applied to the first heater element during a start-up operation in which the temperature of the first heater element is raised to a target operating temperature. By varying the duty ratio during the start-up operation, changes in the resistance of the first heater element with the heating can be compensated. For example, the duty ratio can be increased during the course of the start-up to achieve the target operating temperature faster.
    Type: Application
    Filed: July 6, 2020
    Publication date: March 25, 2021
    Inventors: Kiyotaka MURAKAMI, Kazuhiko KIKUCHI, Sasuke ENDO, Masaya TANAKA, Ryota SAEKI, Kousei MIYASHITA, Ryosuke KOJIMA, Yohei DOI, Yuki KAWASHIMA, Eiji SHINOHARA
  • Publication number: 20210080880
    Abstract: An image forming apparatus includes a heater, a fixing device, and a controller. The heater includes a heat generator that generates heat when the heater is turned on. The fixing device may fix a developer image on a surface of an image forming medium using the heat from the heat generator. The controller detects a voltage of a power supply for supplying electric power to the heater, and determines an occurrence of an abnormality in the heater if a voltage drop amount at the time the heater is turned on as compared to a case in which the heater is turned off is smaller than a first threshold value.
    Type: Application
    Filed: September 18, 2019
    Publication date: March 18, 2021
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Eiji SHINOHARA, Kazuhiko KIKUCHI, Sasuke ENDO, Masaya TANAKA, Ryota SAEKI, Kousei MIYASHITA, Ryosuke KOJIMA, Yohei DOI, Yuki KAWASHIMA, Kiyotaka MURAKAMI
  • Publication number: 20210072679
    Abstract: An image processing apparatus includes a fixing unit including a heater and a fixing belt. The fixing belt is electrically connected between a first power source and a ground terminal. A controller is configured to control the heater to heat the fixing belt. The controller is further configured to determine whether a current is flowing through the fixing belt and, upon determining that a current is not flowing through the fixing belt, control the heater not to heat the fixing belt.
    Type: Application
    Filed: May 27, 2020
    Publication date: March 11, 2021
    Inventors: Yohei DOI, Eiji SHINOHARA, Kazuhiko KIKUCHI, Sasuke ENDO, Masaya TANAKA, Ryota SAEKI, Kousei MIYASHITA, Ryosuke KOJIMA, Yuki KAWASHIMA, Kiyotaka MURAKAMI
  • Publication number: 20210063927
    Abstract: A heating device includes a cylindrical film configured to be rotated about an axis, a heater including a substrate that extends along a longitudinal direction parallel to the axis, and a heater element on the substrate and facing an inner surface of the cylindrical film. A heat conductor extends along the longitudinal direction and has first and second surfaces. A first portion of the heat conductor contacts the substrate and a second portion of the heat conductor has a groove in the first surface. A temperature sensing element is disposed at a position on the second surface at a position opposite the groove.
    Type: Application
    Filed: May 21, 2020
    Publication date: March 4, 2021
    Inventors: Kazuhiko KIKUCHI, Sasuke ENDO, Masaya TANAKA, Ryota SAEKI, Kiyotaka MURAKAMI, Kousei MIYASHITA, Ryosuke KOJIMA, Yohei DOI, Yuki KAWASHIMA, Eiji SHINOHARA
  • Patent number: 10933567
    Abstract: A method of producing a molded product includes preparing a mold for insert molding, setting an insert member, forming a cavity in a condition in which the insert member is disposed by closing the mold and injecting a molten resin into the cavity. The mold for insert molding includes first and second molds, and the first mold has a guide surface provided at a part corresponding to a trunk portion of the molded product within a wall surface defining a groove portion which constitutes a part of the cavity. The insert member is set at the groove portion of the first mold while the projecting portion being guided by the guide surface.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: March 2, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masaaki Udagawa, Yohei Doi, Daigo Kobayashi
  • Publication number: 20190358232
    Abstract: Compounds, pharmaceutical compositions, and methods for reversing fosfomycin resistance are disclosed. Embodiments of the disclosed compounds inhibit fosfomycin-inhibiting enzymes. Some embodiments of the compounds are FosA inhibitors. The disclosed pharmaceutical compositions include (i) fosfomycin or a pharmaceutically acceptable salt thereof and (ii) a compound, or a pharmaceutically acceptable salt thereof, which inhibits a fosfomycin-inhibiting enzyme. A method of inhibiting growth of a fosfomycin-resistant bacterium includes contacting the bacterium with (i) fosfomycin or a pharmaceutically acceptable salt thereof and (ii) an effective amount of a disclosed compound or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: January 11, 2018
    Publication date: November 28, 2019
    Applicants: University of Pittsburgh - Of the Commonwealth System of Higher Education, University of Maryland, Baltimore
    Inventors: Nicolas Paul Sluis-Cremer, Adam Daniel Tomich, Yohei Doi, Eric J. Sundberg, Erik H. Klontz, Steven Fletcher
  • Publication number: 20180373184
    Abstract: An image forming apparatus comprises a reading section configured to read a first image on a sheet, an image forming section configured to forma second image on the sheet, a fixing section configured to heat the sheet to fix the second image on the sheet, and a processor. The processor is configured to determine a color of the read first image, select a decolorable toner based on the determined color, and set a target temperature of the fixing section to a temperature that is below a decoloring temperature of the decolorable toner, and above both a decoloring temperature of a decolorable toner having the determined color and a fixing temperature for the decolorable toner.
    Type: Application
    Filed: March 22, 2018
    Publication date: December 27, 2018
    Inventor: Yohei DOI
  • Publication number: 20180272582
    Abstract: A method of producing a molded product includes preparing a mold for insert molding, setting an insert member, forming a cavity in a condition in which the insert member is disposed by closing the mold and injecting a molten resin into the cavity. The mold for insert molding includes first and second molds, and the first mold has a guide surface provided at a part corresponding to a trunk portion of the molded product within a wall surface defining a groove portion which constitutes a part of the cavity. The insert member is set at the groove portion of the first mold while the projecting portion being guided by the guide surface.
    Type: Application
    Filed: March 12, 2018
    Publication date: September 27, 2018
    Inventors: Masaaki Udagawa, Yohei Doi, Daigo Kobayashi
  • Publication number: 20180272585
    Abstract: A method of producing a molded product includes preparing a mold for insert molding in which a cavity corresponding to a molded product including a trunk portion and an arm portion is defined, disposing an insert member including a bent portion and a first extending portion extending from the bent portion in a state in which one side of the insert member is supported in the cavity such that the first extending portion is downstream of the bent portion in a flow direction of molten resin, wherein the mold includes, on a wall surface defining a space corresponding to the arm portion in the cavity, a first projecting portion that supports a part of a surface of the first extending portion positioned on a major angle side of the bent portion, and injecting molten resin into the cavity.
    Type: Application
    Filed: March 15, 2018
    Publication date: September 27, 2018
    Inventors: Kazuhiro Kochi, Daigo Kobayashi, Masaaki Udagawa, Yohei Doi, Masaru Nabeshima, Haruyasu Ishikawa, Akihiro Baba, Daisuke Sannohe
  • Patent number: 9975369
    Abstract: A power control device includes a heating section, an input section, and a control section. The heating section is configured to heat an object. The input section is configured to receive a power consumption value. The control section is configured to control the heating section so that a total power value obtained by adding a power consumption value of the heating section and the power consumption value received by the input section does not exceed a predetermined power value.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: May 22, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yohei Doi
  • Publication number: 20170136798
    Abstract: A power control device includes a heating section, an input section, and a control section. The heating section is configured to heat an object. The input section is configured to receive a power consumption value. The control section is configured to control the heating section so that a total power value obtained by adding a power consumption value of the heating section and the power consumption value received by the input section does not exceed a predetermined power value.
    Type: Application
    Filed: January 27, 2017
    Publication date: May 18, 2017
    Inventor: Yohei DOI
  • Patent number: 9592696
    Abstract: A power control device includes a heating section, an input section, and a control section. The heating section is configured to heat an object. The input section is configured to receive a power consumption value. The control section is configured to control the heating section so that a total power value obtained by adding a power consumption value of the heating section and the power consumption value received by the input section does not exceed a predetermined power value.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: March 14, 2017
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yohei Doi
  • Publication number: 20170036474
    Abstract: A power control device includes a heating section, an input section, and a control section. The heating section is configured to heat an object. The input section is configured to receive a power consumption value. The control section is configured to control the heating section so that a total power value obtained by adding a power consumption value of the heating section and the power consumption value received by the input section does not exceed a predetermined power value.
    Type: Application
    Filed: August 4, 2015
    Publication date: February 9, 2017
    Inventor: Yohei DOI
  • Patent number: 8620200
    Abstract: Certain embodiments provide an image forming device including: a print portion; a first roller provided in a sheet transportation direction; a heating element provided in either the first roller or an endless belt wound around the first roller and generates heat by magnetic flux; a second roller that forms a nip together with the heating element; a coil that has a coil hole facing the nip with a gap therebetween and generates the magnetic flux; an induction heating circuit that supplies the coil with a drive signal; an insulating mold that has a through hole facing the coil hole and supports the coil; a mechanism that transports the sheet through the through hole to the nip; and a controller that causes the mechanism to transport the sheet to the nip and the induction heating circuit to perform the induction-heating.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: December 31, 2013
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Yohei Doi
  • Patent number: 8218991
    Abstract: A fixing device according to an embodiment of the present invention heats a metal conductive layer of a heat roller using an induction current generating coil. In order to supplement a heat capacity of the heat roller, a press roller having a large heat capacity is heated by a halogen lamp. During a start of activation of an image forming apparatus, when a printer control circuit is started, the supply of electric power to the halogen lamp is started before warming-up is started.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: July 10, 2012
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Hiroshi Nakayama, Yohei Doi, Tetsuo Kitamura, Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda, Kazuhiko Kikuchi, Masanori Takai, Toyoyasu Kusaka, Toshihiro Sone
  • Patent number: 8099007
    Abstract: In a heat roller of a fixing apparatus according to an embodiment of the present invention, a sleeve is slidable with respect to a supporting roller. Flanges that regulate the sleeve have smooth surfaces, are arranged at gaps apart from a foamed rubber layer of the supporting roller, and freely rotate with respect to the supporting roller. Edges at both ends of the foamed rubber layer of the supporting roller are formed in an R shape and set shorter than the length of a body of the press roller. The sleeve has markings for detecting a state of the heat roller.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: January 17, 2012
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Yoshinori Tsueda, Osamu Takagi, Satoshi Kinouchi, Tetsuo Kitamura, Hiroshi Nakayama, Yohei Doi, Kazuhiko Kikuchi, Masanori Takai, Toyoyasu Kusaka, Toshihiro Sone
  • Patent number: 8078073
    Abstract: In a fixing apparatus of an embodiment of the invention, a heat roller forwardly and reversely rotated by a drive motor capable of forwardly and reversely rotating is heated by an induction heating coil also when it is reversely rotated. Further, the roller control temperature of the heat roller by a control system is adjusted according to a time of forward rotation of the heat roller and a time of reverse rotation, or a time when the heat roller and a press roller are separated from each other and a time when they are in contact with each other. Besides, after a specified time has passed since an instruction of reverse rotation or forward rotation by a drive signal, output of the induction heating coil is tuned on.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: December 13, 2011
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Satoshi Kinouchi, Osamu Takagi, Yoshinori Tsueda, Tetsuo Kitamura, Hiroshi Nakayama, Yohei Doi, Kazuhiko Kikuchi, Masanori Takai, Toyoyasu Kusaka, Toshihiro Sone
  • Publication number: 20110293298
    Abstract: An image forming apparatus according to an embodiment includes a solar panel, an electric storage unit which is supplied with electric power from the solar panel and a commercial power supply and stores electricity, a power supply disconnection detecting unit which detects power supply disconnection from the commercial power supply, and a maintenance control unit for power supply disconnection which carries out maintenance control using stored electricity from the solar panel if the power supply disconnection from the commercial power supply is detected by the power supply disconnection detecting unit.
    Type: Application
    Filed: May 19, 2011
    Publication date: December 1, 2011
    Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventor: Yohei Doi