Patents by Inventor Naoto Suzuki

Naoto Suzuki 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).

  • Publication number: 20170090368
    Abstract: A fixing device includes a fixing rotator and a slider that slides over the fixing rotator. A cam presses the slider against the fixing rotator. The cam includes a cam rear disposed opposite a rear end of the fixing rotator in an axial direction thereof and a cam front disposed opposite a front end of the fixing rotator in the axial direction thereof. A controller rotates the cam to a first slide position where the cam rear presses the slider against the fixing rotator, a second slide position where the cam rear and the cam front press the slider against the fixing rotator, a third slide position where the cam front presses the slider against the fixing rotator, and an isolation position where the cam rear and the cam front do not press the slider against the fixing rotator.
    Type: Application
    Filed: September 16, 2016
    Publication date: March 30, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Masateru UJIIE, Naoto SUZUKI, Shinichi NAMEKATA, Takashi SAKAMAKI, Teppei KAWATA
  • Patent number: 9568864
    Abstract: A fixing device includes a fixing rotator, a pressing rotator, an oil applicator, a first adjuster, a surface modifier, a second adjuster, and a processor. The fixing rotator contacts a recording medium bearing a toner image. The pressing rotator forms a fixing nip with the fixing rotator. The oil applicator is pressed against at least one of applied members of the fixing rotator and pressing rotator. The first adjuster adjusts contact/separation of the oil applicator with respect to the applied member. The surface modifier contacts the fixing rotator to modify a surface thereof. The second adjuster adjusts contact/separation of the surface modifier with respect to the fixing rotator. The processor allows the surface modifier to modify the fixing rotator surface after the oil applicator contacts the applied member, and the oil applicator to separate from the applied member after the surface modifier is separated from the fixing rotator.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: February 14, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Naoto Suzuki, Yohhei Watanabe, Takashi Sakamaki, Masateru Ujiie
  • Patent number: 9535378
    Abstract: A fixing device includes a first rotator rotatable in a given direction of rotation and a second rotator contacting the first rotator to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed. A heater is disposed opposite and heats at least one of the first rotator and the second rotator. An abutment separably contacts the first rotator to refresh an outer circumferential surface of the first rotator. A mover is connected to the abutment to move the abutment with respect to the first rotator. A degradation estimator is operatively connected to the mover to estimate a degradation level of the outer circumferential surface of the first rotator and control the mover to move the abutment with respect to the first rotator according to the degradation level of the first rotator.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: January 3, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Takashi Sakamaki, Yohhei Watanabe, Naoto Suzuki, Masateru Ujiie
  • Patent number: 9494904
    Abstract: A separation device separates a recording medium ejected from a fixing nip formed between a first rotator and a second rotator from the first rotator. The separation device includes a separator including a front end disposed opposite the fixing nip and the recording medium and a plurality of recesses disposed on the front end of the separator at least in a conveyance span on the separator where the recording medium is conveyed. The plurality of recesses includes a first recess extending in a first extension line that is oblique relative to a recording medium conveyance direction and a second recess adjacent to the first recess and extending in a second extension line that is oblique relative to the recording medium conveyance direction. The second extension line overlaps the first extension line in a direction perpendicular to the recording medium conveyance direction to define an overlap span.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: November 15, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Yohhei Watanabe, Takashi Sakamaki, Masateru Ujiie, Naoto Suzuki, Fumihiro Hirose
  • Publication number: 20160318502
    Abstract: An indicator apparatus for a hybrid vehicle includes a display region having a range that extends between first and second ends of the display region. The display region displays a first mark to indicate to the driver a first state amount that changes in accordance with the output demand from the driver, a first edge of the first mark moving across the range between the first and second ends of the display region as the first state amount changes. A second mark having a second edge is displayed so that the second edge extends across and overlaps the display region, the second edge indicating to the driver a threshold at which switching occurs between an EV traveling mode and an HV traveling mode.
    Type: Application
    Filed: July 8, 2016
    Publication date: November 3, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoto SUZUKI, Motohiro NAKASHIMA
  • Patent number: 9450243
    Abstract: To provide trimanganese tetraoxide having a high tap density and a uniform particle size distribution, and its production process. Trimanganese tetraoxide having a tap density of at least 1.5 g/cm3 and a relative standard deviation of the particle size of at most 40%. A process for producing such trimanganese tetraoxide, which comprises a step of mixing a manganese aqueous solution and an alkaline aqueous solution so that the oxidation-reduction potential is at least 0 mV and OH?/Mn2+ (mol/mol) is at most 0.55.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: September 20, 2016
    Assignee: TOSOH CORPORATION
    Inventors: Takahiro Matsunaga, Tadashi Kodama, Naoto Suzuki, Masao Sawano
  • Patent number: 9440860
    Abstract: To provide trimanganese tetraoxide from which a lithium manganese oxide with less fusion of particles by firing, i.e. necking phenomenon, is obtained. Trimanganese tetraoxide characterized in that the pore volume of pores having 5 pore diameters of from 0.3 to 2 ?m is at least 0.1 mL/g. The pore volume of pores having pore diameters of from 0.5 to 1 ?m is preferably at least 0.03 mL/g.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: September 13, 2016
    Assignee: TOSOH CORPORATION
    Inventors: Naoto Suzuki, Takahiro Matsunaga
  • Publication number: 20160238431
    Abstract: A liquid surface sensor includes a case fastened to a washer tank, and a float assembled to the case and is movable relative to the case in a vertical direction. The float supports a magnet. The case is provided with a reed switch axle receiving a reed switch that is switched to an off state to an on state when being approached by the magnet. The reed switch axle supports the float to move up and down. The reed switch includes a switch main body, and a conductive film covering an outer surface of the switch main body and extending from a reed is arranged on the switch main body. The conductive film transmits a signal that indicates an on state of a switch or an off state of the switch and is transmitted to the reed.
    Type: Application
    Filed: September 9, 2014
    Publication date: August 18, 2016
    Inventor: Naoto SUZUKI
  • Patent number: 9415685
    Abstract: An indicator portion includes a first indicator portion and a second indicator portion. The first indicator portion indicates an accelerator pedal opening degree that changes in accordance with an operated amount of the accelerator pedal by the driver. The second indicator portion includes a division line and regions divided by the division line. The division line shows an accelerator pedal opening degree where traveling modes (EV mode and HV mode) are switched. The regions show the ranges of accelerator pedal opening degrees where traveling is performed in EV mode and HV mode, respectively.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: August 16, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoto Suzuki, Motohiro Nakashima
  • Publication number: 20160202646
    Abstract: A fixing device includes a fixing rotator, a pressing rotator, an oil applicator, a first adjuster, a surface modifier, a second adjuster, and a processor. The fixing rotator contacts a recording medium bearing a toner image. The pressing rotator forms a fixing nip with the fixing rotator. The oil applicator is pressed against at least one of applied members of the fixing rotator and pressing rotator. The first adjuster adjusts contact/separation of the oil applicator with respect to the applied member. The surface modifier contacts the fixing rotator to modify a surface thereof. The second adjuster adjusts contact/separation of the surface modifier with respect to the fixing rotator. The processor allows the surface modifier to modify the fixing rotator surface after the oil applicator contacts the applied member, and the oil applicator to separate from the applied member after the surface modifier is separated from the fixing rotator.
    Type: Application
    Filed: January 12, 2016
    Publication date: July 14, 2016
    Applicant: Ricoh Company, Ltd.
    Inventors: Naoto SUZUKI, Yohhei WATANABE, Takashi SAKAMAKI, Masateru UJIIE
  • Patent number: 9383692
    Abstract: A fixing device includes a fixing rotary body to come into contact with a toner image on a recording medium and a pressing rotary body separably pressed against the fixing rotary body to press the recording medium against the fixing rotary body. A cooler, disposed opposite the pressing rotary body to cool the pressing rotary body, includes a fan to move air to the pressing rotary body and at least one inlet duct interposed between the fan and the pressing rotary body to supply air from the fan to the pressing rotary body. The at least one inlet duct selectively cools the pressing rotary body in a variable axial span in an axial direction thereof.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: July 5, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Ueno, Jun Okamoto, Tetsuo Tokuda, Naoto Suzuki, Takashi Sakamaki, Fumihiro Hirose, Motoyoshi Yamano
  • Patent number: 9372447
    Abstract: An image forming apparatus includes a rotary fixing member cleaner that includes a freely rotatable rotary unwinding member, around which a cleaning web winds, a rotary winding member to wind the cleaning web thereon from one end thereof, and a load applicator to apply a load to the cleaning web unwound from the rotary unwinding member. The rotary fixing member cleaner removes any unnecessary substance adhering to an outer circumferential surface of the rotary fixing member therefrom by unwinding and moving the cleaning web from the rotary unwinding member in an opposite direction to a direction of movement of the outer circumferential surface of the rotary fixing member at a contacting point at which the cleaning web contacts the outer circumferential surface of the rotary fixing member. The load applicator presses against the cleaning web winding around the rotary unwinding member at a prescribed angular contact position.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: June 21, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Masateru Ujiie, Naoto Suzuki, Yohhei Watanabe, Takashi Sakamaki
  • Publication number: 20160146415
    Abstract: A reliable semiconductor light-emitting apparatus including an optical fiber and a wavelength converting layer and a headlight using the semiconductor light-emitting apparatus can include a ferrule holder attaching the wavelength converting layer. The ferrule holder can also attach a first ferrule covering the optical fiber, which transmits light emitted from a semiconductor light-emitting chip toward the wavelength converting layer. When the light-emitting apparatus is used for the headlight, the apparatus can be easily incorporated into a prescribed position of the headlight with confidence via a lamp holder.
    Type: Application
    Filed: November 25, 2015
    Publication date: May 26, 2016
    Inventors: Naoto Suzuki, Takahiko Nozaki, Takeshi Waragaya
  • Publication number: 20160124357
    Abstract: An image forming apparatus includes a rotary fixing member cleaner that includes a freely rotatable rotary unwinding member, around which a cleaning web winds, a rotary winding member to wind the cleaning web thereon from one end thereof, and a load applicator to apply a load to the cleaning web unwound from the rotary unwinding member. The rotary fixing member cleaner removes any unnecessary substance adhering to an outer circumferential surface of the rotary fixing member therefrom by unwinding and moving the cleaning web from the rotary unwinding member in an opposite direction to a direction of movement of the outer circumferential surface of the rotary fixing member at a contacting point at which the cleaning web contacts the outer circumferential surface of the rotary fixing member. The load applicator presses against the cleaning web winding around the rotary unwinding member at a prescribed angular contact position.
    Type: Application
    Filed: October 16, 2015
    Publication date: May 5, 2016
    Applicant: Ricoh Company, Ltd.
    Inventors: Masateru UJIIE, Naoto SUZUKI, Yohhei WATANABE, Takashi SAKAMAKI
  • Publication number: 20160124361
    Abstract: A separation device separates a recording medium ejected from a fixing nip formed between a first rotator and a second rotator from the first rotator. The separation device includes a separator including a front end disposed opposite the fixing nip and the recording medium and a plurality of recesses disposed on the front end of the separator at least in a conveyance span on the separator where the recording medium is conveyed. The plurality of recesses includes a first recess extending in a first extension line that is oblique relative to a recording medium conveyance direction and a second recess adjacent to the first recess and extending in a second extension line that is oblique relative to the recording medium conveyance direction. The second extension line overlaps the first extension line in a direction perpendicular to the recording medium conveyance direction to define an overlap span.
    Type: Application
    Filed: October 16, 2015
    Publication date: May 5, 2016
    Inventors: Yohhei WATANABE, Takashi SAKAMAKI, Masateru UJllE, Naoto SUZUKI, Fumihiro HIROSE
  • Patent number: 9316977
    Abstract: A fixing device includes an exciting coil to generate a magnetic flux and a heat generation layer disposed opposite the exciting coil to generate heat by the magnetic flux from the exciting coil. A temperature sensitive magnetic body, disposed opposite the exciting coil via the heat generation layer, obtains and loses magnetism at a temperature defined by a Curie temperature by composition adjustment to selectively create a heating region and a non-heating region of the heat generation layer. A degausser is made of a non-magnetic material having an electrical resistivity smaller than an electrical resistivity of the temperature sensitive magnetic body. The degausser is disposed opposite the exciting coil with an interval in a range of from about 4.2 mm to about 8.2 mm.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: April 19, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Motoyoshi Yamano, Tetsuo Tokuda, Takashi Sakamaki, Naoto Suzuki, Satoshi Ueno, Kohichi Utsunomiya, Fumihiro Hirose
  • Patent number: 9316978
    Abstract: A fixing device includes a fixing rotator and a pressure rotator pressed against the fixing rotator to form a fixing nip therebetween. An oil applicator is impregnated with oil to be applied to at least one of the fixing rotator and the pressure rotator. A first mover is connected to the oil applicator to separably bring the oil applicator into contact with the at least one of the fixing rotator and the pressure rotator. A surface polisher refreshes an outer circumferential surface of the fixing rotator. A second mover is connected to the surface polisher to separably bring the surface polisher into contact with the fixing rotator. The first mover brings the oil applicator into contact with the at least one of the fixing rotator and the pressure rotator according to a contact condition under which the surface polisher contacts the fixing rotator.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: April 19, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Naoto Suzuki, Takashi Sakamaki
  • Patent number: 9283953
    Abstract: A travel control device selects the travel modes of the hybrid vehicle that includes a battery configured to be charged with electric power from an external power source, an MG configured to generate a driving force for running with the electric power of the battery, and an engine configured to generate a driving force for running. The travel control device includes a second estimating unit and a drive switching unit. The second estimating unit estimates an expected charging time at a destination where the battery can be charged. The drive switching unit increases a usage frequency of the EV mode until reaching to the destination in a case where the expected charging time estimated by the second estimating unit is longer than a case where expected charging time is short.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: March 15, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Naoto Suzuki
  • Publication number: 20160004199
    Abstract: A fixing device includes a fixing rotator and a pressure rotator pressed against the fixing rotator to form a fixing nip therebetween. An oil applicator is impregnated with oil to be applied to at least one of the fixing rotator and the pressure rotator. A first mover is connected to the oil applicator to separably bring the oil applicator into contact with the at least one of the fixing rotator and the pressure rotator. A surface polisher refreshes an outer circumferential surface of the fixing rotator. A second mover is connected to the surface polisher to separably bring the surface polisher into contact with the fixing rotator. The first mover brings the oil applicator into contact with the at least one of the fixing rotator and the pressure rotator according to a contact condition under which the surface polisher contacts the fixing rotator.
    Type: Application
    Filed: June 17, 2015
    Publication date: January 7, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventors: Naoto SUZUKI, Takashi SAKAMAKI
  • Patent number: 9207594
    Abstract: A fixing device includes an exciting coil and a heat generator disposed opposite the exciting coil. The heat generator includes a heat generation layer disposed opposite the exciting coil to generate heat by a magnetic flux from the exciting coil and a temperature sensitive magnetic body disposed opposite the exciting coil via the heat generation layer to obtain and lose magnetism at a temperature defined by a Curie temperature by composition adjustment to selectively create a heating region and a non-heating region of the heat generation layer. A degausser is disposed opposite the heat generator and made of a non-magnetic material having an electrical resistivity smaller than that of the temperature sensitive magnetic body. A holder contacting and supporting the degausser is disposed inboard from a lateral edge of the degausser and outboard from a lateral end of the exciting coil in a longitudinal direction of the degausser.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: December 8, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Tetsuo Tokuda, Naoto Suzuki, Kohichi Utsunomiya