Patents by Inventor Takeshi Takemoto

Takeshi Takemoto 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: 8498766
    Abstract: A hybrid vehicle (1) includes a battery (10-1), a motor-generator (32-2) operable to produce driving force using electric power of the battery (10-1), a charger (28) operable to charge the battery (10-1) by means of an external power supply, and an ECU (40). The ECU (40) stores a given parameter used in battery model expressions. The parameter varies according to the status of the battery (10-1). During running of the hybrid vehicle (1) and during charging of the battery (10-1) with the external power supply, the ECU (40) collects data related to the status of the battery (10-1), corrects the parameter based on the data, and calculates a value of charging rate (SOC) of the battery (10-1). The ECU (40) controls charge/discharge of the battery (10-1), based on the calculated SOC value.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: July 30, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenji Takahashi, Yuji Nishi, Shuji Tomura, Takeshi Takemoto, Nobuyasu Haga, Tetsuya Fuchimoto, Tetsuya Sugimoto
  • Patent number: 8480208
    Abstract: A liquid-droplet ejection head includes a nozzle substrate, a chamber substrate, a liquid supply substrate, a frame substrate, a driving circuit member, and wire members. The nozzle substrate includes nozzles. The chamber substrate is formed on the nozzle substrate and includes liquid chambers, diaphragms, and electro-mechanical transducers. The liquid supply substrate is formed on the chamber substrate and includes liquid supply channels. The frame substrate is formed on a first face of the liquid supply substrate opposite a second face of the liquid supply substrate formed on the chamber substrate. The driving circuit member that drives the electro-mechanical transducers is mounted on the frame substrate. The wire members connect the electro-mechanical transducers to the driving circuit member. A voltage applied to the electro-mechanical transducers through the wire members deforms the electro-mechanical transducers and the diaphragms to generate pressure in the liquid chambers.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: July 9, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeshi Takemoto, Yukitoshi Tajima
  • Patent number: 8398225
    Abstract: A foamed liquid coating apparatus prevents curling or warping of a sheet caused by coating irregularities when coated with a preprocessing solution using a coating roller or a liquid discharge head. The foamed liquid coating apparatus includes a container holding a liquid that can be foamed. A first foamed liquid producing/transporting unit produces a foamed liquid having a foam size greater than a required foam size from the liquid supplied from the container. A second foamed liquid producing/transporting unit produces a foamed liquid having the required foam size from the foamed liquid produced by the first foamed liquid producing/transporting unit. The foamed liquid produced by the second foamed liquid producing/transporting unit is applied onto a first coating roller. The foamed liquid is further supplied from the first coating roller to a second coating roller that coats a sheet with the foamed liquid.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: March 19, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Minori Ichimura, Kazuyoshi Matsumoto, Manabu Izumikawa, Takeshi Takemoto, Yasuhisa Kato, Yasuo Katano
  • Patent number: 8393718
    Abstract: An inkjet head includes: an ink tank plate that includes a nozzle to discharge a liquid; a drive circuit member connected to an electromechanical transducer to apply a voltage to the electromechanical transducer to generate a pressure in an ink tank to discharge a liquid from the nozzle; a liquid supply plate stacked approximately in parallel with the drive circuit member on the ink tank plate; and a sealing material that hermetically seals an electrical connection between the drive circuit member and the wiring member. The liquid supply plate is provided with a receptacle having a hole portion or a concave portion and a mount area surrounded by the receptacle. The drive circuit member is received in the mount area. The sealing material is filled inside the mount area after the liquid supply plate is bonded to the ink tank plate.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: March 12, 2013
    Assignee: Ricoh Company, Limited
    Inventors: Hitoshi Kida, Takeshi Takemoto
  • Publication number: 20120212547
    Abstract: A droplet discharging head includes: a nozzle substrate that includes a nozzle opening to discharge a droplet therethrough; a liquid chamber substrate that includes liquid pressure chambers communicating with the nozzle openings; a vibration plate arranged to face the nozzle substrate with the liquid chamber substrate interposed therebetween; piezoelectric elements that are provided to face the liquid pressure chambers with the vibration plate interposed therebetween and are arranged in a predetermined direction; a driving element provided, in a flip-chip implementation, on a flow path substrate that includes the nozzle substrate, the liquid chamber substrate, the vibration plate, and the piezoelectric elements; and a first reinforcing wire that is disposed to at least one of the flow path substrate and the driving element, has a band shape extending in a direction along a row of the piezoelectric elements, and is connected to a common electrode shared by the piezoelectric elements.
    Type: Application
    Filed: February 13, 2012
    Publication date: August 23, 2012
    Applicant: RICOH COMPANY, LTD.
    Inventors: Takeshi Takemoto, Hitoshi Kida
  • Patent number: 8200135
    Abstract: A transfer-fixing device includes a transfer-fixing member, a pressing member, a heating device, and a temperature equalizer. The transfer-fixing member carries the toner image. The pressing member presses against the transfer-fixing member to form a nip portion to which the recording medium is conveyed. The heating device heats the transfer-fixing surface of the recording medium conveyed toward the nip portion. The temperature equalizer equalizes a temperature distribution of a surface of the transfer-fixing member in a width direction of the transfer-fixing member after the surface of the transfer-fixing member passes through the nip portion.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: June 12, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Takashi Fujita, Shin Kayahara, Hiromitsu Takagaki, Takashi Seto, Takeshi Takemoto, Hirohmi Tamura
  • Publication number: 20120109443
    Abstract: A hybrid vehicle (1) includes a battery (10-1), a motor-generator (32-2) operable to produce driving force using electric power of the battery (10-1), a charger (28) operable to charge the battery (10-1) by means of an external power supply, and an ECU (40). The ECU (40) stores a given parameter used in battery model expressions. The parameter varies according to the status of the battery (10-1). During running of the hybrid vehicle (1) and during charging of the battery (10-1) with the external power supply, the ECU (40) collects data related to the status of the battery (10-1), corrects the parameter based on the data, and calculates a value of charging rate (SOC) of the battery (10-1). The ECU (40) controls charge/discharge of the battery (10-1), based on the calculated SOC value.
    Type: Application
    Filed: July 1, 2010
    Publication date: May 3, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenji Takahashi, Yuji Nishi, Shuji Tomura, Takeshi Takemoto, Nobuyasu Haga, Tetsuya Fuchimoto, Tetsuya Sugimoto
  • Publication number: 20120091930
    Abstract: When it is determined by a determining portion (54) that the SOC of a first auxiliary power storage device (BB1) has reached a first lower limit value (TL), a switching control portion (56) generates a switching signal (SW) to switch from the first auxiliary power storage device (BB1) to the second auxiliary power storage device (BB2). A SOC estimating portion (52) measures the OCV for the first auxiliary power storage device (BB1), for which it has been determined that the SOC has reached the first lower limit value (TL) and has thus been disconnected, and estimates the SOC of that first auxiliary power storage device (BB1), based on that measured OCV. If the estimated SOC is higher than the first lower limit value (TL), after the SOC of the second auxiliary power storage device (BB2) has reached the first lower limit value (TL), the switching control portion (56) generates a switching signal (SW) to switch from the second auxiliary power storage device (BB2) to the first auxiliary storage device (BB1).
    Type: Application
    Filed: June 29, 2010
    Publication date: April 19, 2012
    Inventors: Kenji Takahashi, Yuji Nishi, Shuji Tomura, Takeshi Takemoto, Nobuyasu Haga, Tetsuya Fuchimoto, Tetsuya Sugimoto
  • Publication number: 20120069095
    Abstract: An inkjet head includes: an ink tank plate that includes a nozzle to discharge a liquid; a drive circuit member connected to an electromechanical transducer to apply a voltage to the electromechanical transducer to generate a pressure in an ink tank to discharge a liquid from the nozzle; a liquid supply plate stacked approximately in parallel with the drive circuit member on the ink tank plate; and a sealing material that hermetically seals an electrical connection between the drive circuit member and the wiring member. The liquid supply plate is provided with a receptacle having a hole portion or a concave portion and a mount area surrounded by the receptacle. The drive circuit member is received in the mount area. The sealing material is filled inside the mount area after the liquid supply plate is bonded to the ink tank plate.
    Type: Application
    Filed: September 12, 2011
    Publication date: March 22, 2012
    Inventors: Hitoshi Kida, Takeshi Takemoto
  • Publication number: 20120069102
    Abstract: In an embodiment, a liquid droplet ejecting head includes sequentially in a laminated manner: a nozzle substrate; an ink tank substrate; a liquid supply substrate; and a frame substrate. The nozzle substrate is formed so that at least three or more nozzle rows are arranged in a direction intersecting a longitudinal direction of the nozzle row; the driving circuit member is provided to oppose to an outer surface of the frame substrate so as to correspond to a region between two adjacent nozzle rows located at the 4N+2-th position and the 4N+3-th position (N is 0 or a natural number); and the driving circuit member is commonly used to drive the electro-mechanical converting element and to drive the electro-mechanical converting element used for another one or two nozzle rows adjacent to at least one of the two nozzle rows.
    Type: Application
    Filed: September 15, 2011
    Publication date: March 22, 2012
    Inventor: Takeshi TAKEMOTO
  • Publication number: 20120065824
    Abstract: A control apparatus (30) estimates a status of charge (SOC) by a first estimation method by temporarily changing the SOC of a battery (B) so that the SOC of the battery (B) falls within a first region in the case a period, during which the estimated value of the status of charge of the battery (B) falls within a second region, exceeds a prescribed period.
    Type: Application
    Filed: June 1, 2010
    Publication date: March 15, 2012
    Inventors: Kenji Takahashi, Yuji Nishi, Shuji Tomura, Takeshi Takemoto, Nobuyasu Haga, Tetsuya Fuchimoto, Tetsuya Sugimoto
  • Patent number: 8108161
    Abstract: A battery state estimating unit estimates an internal state of a secondary battery according to a battery model equation in every arithmetic cycle, and calculates an SOC based on a result of the estimation. A parameter characteristic map stores a characteristic map based on a result of actual measurement performed in an initial state (in a new state) on a parameter diffusion coefficient and a DC resistance in the battery model equation. The parameter change rate estimating unit estimates a DC resistance change rate represented by a ratio of a present DC resistance with respect to a new-state parameter value by parameter identification based on the battery model equation, using battery data measured by sensors as well as the new-state parameter value of the DC resistance corresponding to the present battery state and read from the parameter characteristic map.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: January 31, 2012
    Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki Kaisha
    Inventors: Shuji Tomura, Takaji Umeno, Yasushi Amano, Yuji Nishi, Takeshi Takemoto, Nobuyasu Haga, Tetsuya Fuchimoto
  • Patent number: 8093902
    Abstract: A diffusion estimation unit follows a diffusion equation in an active material that is represented by a polar coordinate to estimate a distribution in concentration of lithium in the active material. An open circuit voltage estimation unit obtains an open circuit voltage in accordance with a local SOC(?) based on a concentration of lithium obtained at an interface of the active material as estimated by the diffusion estimation unit. A current estimation unit uses a battery's voltage measured by a voltage sensor, the estimated open circuit voltage, and a parameter value that is set for the battery by a battery parameter value setting unit, and follows a voltage-current relationship model expression simplified from an electrochemical reaction expression to estimate the battery's current density.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: January 10, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuji Nishi, Takeshi Takemoto, Nobuyasu Haga, Tetsuya Fuchimoto
  • Patent number: 8018203
    Abstract: A battery model unit includes an electrode reaction model unit based on the Butler_Volmer equation, an electrolyte lithium concentration distribution model unit analyzing a lithium ion concentration distribution in an electrolyte solution by a diffusion equation, an active material lithium concentration distribution model unit analyzing an ion concentration distribution in a solid state of an active material by a diffusion equation, a current/potential distribution model unit for obtaining a potential distribution according to the charge conservation law, a thermal diffusion model unit and a boundary condition setting unit.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: September 13, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuji Nishi, Takeshi Takemoto
  • Publication number: 20110161025
    Abstract: A battery state estimating unit estimates an internal state of a secondary battery in accordance with a battery model equation in every arithmetic cycle, and estimates a charging rate and a battery current based on a result of the estimation. A parameter estimating unit obtains a battery current measured by a sensor as well as the charging rate and the battery current estimated by the battery state estimating unit. The parameter estimating unit estimates a capacity deterioration parameter such that a rate of change in difference (estimation error) between a summed value of an actual current and a summed value of an estimated current with respect to the charging rate is minimized. A result obtained by estimating the capacity deterioration parameter is reflected in the battery model by the battery state estimating unit.
    Type: Application
    Filed: August 28, 2009
    Publication date: June 30, 2011
    Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shuji Tomura, Takaji Umeno, Yasushi Amano, Yuji Nishi, Takeshi Takemoto, Nobuyasu Haga, Tetsuya Fuchimoto
  • Publication number: 20110122199
    Abstract: A liquid-droplet ejection head includes a nozzle substrate, a chamber substrate, a liquid supply substrate, a frame substrate, a driving circuit member, and wire members. The nozzle substrate includes nozzles. The chamber substrate is formed on the nozzle substrate and includes liquid chambers, diaphragms, and electro-mechanical transducers. The liquid supply substrate is formed on the chamber substrate and includes liquid supply channels. The frame substrate is formed on a first face of the liquid supply substrate opposite a second face of the liquid supply substrate formed on the chamber substrate. The driving circuit member that drives the electro-mechanical transducers is mounted on the frame substrate. The wire members connect the electro-mechanical transducers to the driving circuit member. A voltage applied to the electro-mechanical transducers through the wire members deforms the electro-mechanical transducers and the diaphragms to generate pressure in the liquid chambers.
    Type: Application
    Filed: November 22, 2010
    Publication date: May 26, 2011
    Applicant: RICOH COMPANY, LTD.
    Inventors: Takeshi TAKEMOTO, Yukitoshi Tajima
  • Patent number: 7912412
    Abstract: A transfer-fixing device transfers and fixes a toner image onto a transfer-fixing surface of a recording medium, and includes a transfer-fixing member, a pressing member, a heating member, and a temperature equalization member. The transfer-fixing member carries the toner image. The pressing member pressingly contacts the transfer-fixing member to form a nip between the pressing member and the transfer-fixing member through which the recording medium passes. The heating member heats the transfer-fixing surface of the recording medium conveyed toward the nip so that the recording medium reaches the nip before a temperature of a back surface opposite the transfer-fixing surface of the recording medium increases. The temperature equalization member equalizes temperature distribution on a surface of the transfer-fixing member in a width direction of the transfer-fixing member perpendicular to a conveyance direction of the recording medium, after the surface of the transfer-fixing member passes the nip.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: March 22, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Takashi Fujita, Shin Kayahara, Takeshi Takemoto, Hiromitsu Takagaki, Takashi Seto, Hirohmi Tamura
  • Patent number: 7905573
    Abstract: A liquid ejection head includes a nozzle plate having a nozzle that ejects liquid drops, an actuator that deforms a portion of the nozzle plate surrounding the nozzle with heat, and a flow path member opposing the nozzle plate, which forms a flow path for guiding liquid to the nozzle. A fluidity resistance path is provided in the flow path between a nozzle plate portion surrounding the nozzle and a portion of the flow path member opposing the nozzle plate portion. A fluidity resistance of the fluidity resistance path is changed by deforming the nozzle plate portion.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: March 15, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Takeshi Takemoto, Yasuhisa Kato, Kazuyoshi Matsumoto, Minori Ichimura, Manabu Izumikawa
  • Patent number: 7907881
    Abstract: The transfer-fixing device includes an image carrier, a pressing member, a heater, and an electrical field generator. The image carrier carries a toner image. The pressing member presses against the image carrier to form a transfer-fixing nip between the pressing member and the image carrier. The heater heats the toner image carried by the image carrier so that a temperature of the toner image is not higher than Tm +10 degrees centigrade when a toner softening point is Tm degrees centigrade. The electrical field generator forms a transfer electrical field at the transfer-fixing nip.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: March 15, 2011
    Assignee: Ricoh Company Limited
    Inventors: Shin Kayahara, Takashi Fujita, Takeshi Takemoto, Hiromitsu Takagaki, Takashi Seto, Hirohmi Tamura
  • Patent number: 7869752
    Abstract: A cleaning device including a cleaning member that moves in a predetermined direction and is in contact with a cleaning target that moves in a predetermined direction and which is directly or indirectly heated by a heater, to remove toner particles on a surface of the cleaning target. A contact surface of the cleaning member with the cleaning target includes a plurality of regions of different toner-releasing ability.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: January 11, 2011
    Assignee: Ricoh Company Limited
    Inventors: Shin Kayahara, Takashi Fujita, Takeshi Takemoto, Hiromitsu Takagaki, Takashi Seto, Kazumi Suzuki, Atsushi Nagata