Patents by Inventor Kenji Sugiura

Kenji Sugiura 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: 8520338
    Abstract: Minute elements are formed while a photo deviation is suppressed between a spin torque oscillator and a main pole and damage is prevented on the ends of the spin torque oscillator in microwave-assisted recording. A magnetic recording head used for microwave-assisted recording includes: a main pole; a spin torque oscillator that is disposed on the main pole and includes a magnetization high-speed rotation layer for rotating magnetization at a high speed by a spin torque; a protective film that is disposed in the track width direction of the spin torque oscillator; an insulating film formed over the wall surfaces of the main pole and the wall surfaces of the protective film; and a magnetic film formed on the insulating film so as to cover at least the main pole.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: August 27, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Yuta Udo, Mikito Sugiyama, Masato Shiimoto, Nobuo Yoshida, Kenji Sugiura, Masashi Hattori
  • Publication number: 20130214817
    Abstract: A command detecting device of the present invention includes a comparator, a detection state selector, a time detector, and a detection time switch. The comparator compares a command input from the outside with a certain voltage value and outputs its comparison result as a first state or a second output state. The detection state selector selects an output state that has been determined as a valid output state out of the two output states from the comparator. The time detector measures a duration time of the valid output state and switches the control command when the duration time reaches a given set time. The detection time switch switches the set time for the time detector. The output state selected as the valid output state by the detection state selector is switched by the control command.
    Type: Application
    Filed: July 30, 2012
    Publication date: August 22, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Kenji Sugiura, Yasushi Kato
  • Patent number: 8497642
    Abstract: A motor device comprising a motor, and a drive control circuit for driving and controlling the motor, in which the drive control circuit includes a control unit for generating a control signal for controlling the rotation of the motor, a drive unit for driving the motor on the basis of the control signal, and a communication unit for making serial communications via a serial communication bus for transmitting serial data. This communication unit has an address generating function for generating and setting addresses.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: July 30, 2013
    Assignee: Panasonic Corporation
    Inventors: Masahiro Yasohara, Tomohiro Inoue, Kenji Sugiura, Toru Tazawa, Kenichi Kishimoto
  • Patent number: 8498993
    Abstract: There is provided an information acquiring apparatus which, when the user searches for information using a plurality of keywords, can facilitate an operation of selecting a plurality of keywords by means of a touch panel and improve the operability.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: July 30, 2013
    Assignee: Rakuten, Inc.
    Inventor: Kenji Sugiura
  • Patent number: 8483605
    Abstract: A cleaning device including a normally charged toner cleaning member provided in contact with a cleaning target at a contact position to remove normally charged toner from the cleaning target, a reversely charged toner cleaning member provided in contact with the cleaning target at a contact position upstream from the normally charged toner cleaning member to remove reversely charged toner from the cleaning target, and a pre-cleaning member provided in contact with the cleaning target at a contact position upstream from both the normally and reversely charged toner cleaning members to remove normally charged toner from the cleaning target. The contact position between the pre-cleaning member and the cleaning target has a width wider than a width of the contact position between the normally charged toner cleaning member and the cleaning target and a width of the contact position between the reversely charged toner cleaning member and the cleaning target.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: July 9, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Akira Asaoka, Takaya Muraishi, Kenji Sugiura, Hisashi Kikuchi, Yoshiki Hozumi, Yuu Sakakibara
  • Publication number: 20130155552
    Abstract: A motor drive device according to the present invention includes a motor having a rotor and a drive coil, a rotor position detector, a speed detector that converts position information into speed information, a direction detector that converts the position information into rotating direction information, and a drive unit that drives the motor. When any one of a case where a pulse of a rotor position detector signal is not inputted to the speed detector and another case where a change of rotating direction of the motor is detected by the direction detector in a state in which the rotor repeats a forward rotation and a backward rotation in a condition of the rotor is locked.
    Type: Application
    Filed: September 6, 2011
    Publication date: June 20, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Kenji Sugiura, Hirokazu Yamasaki, Yasushi Kato, Toshiki Tsubouchi, Tomoya Hosokawa
  • Publication number: 20130147408
    Abstract: The present invention is directed to a motor current phase detecting device that drives a motor having a three-phase drive coil, the device including a power distributor that supplies a drive voltage and a drive current to the drive coil, a current detector that detects a common current waveform flowing from the power distributor, a position detector that detects a position of a rotor, a waveform generator that generates a first PWM signal, a waveform regulator that generates a second PWM signal based on the first PWM signal, and a current phase detector that detects a phase of a drive current flowing in each of the drive coil.
    Type: Application
    Filed: September 6, 2011
    Publication date: June 13, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Kenji Sugiura, Masahiro Yasohara
  • Publication number: 20130117362
    Abstract: Contribution information is permitted to post such that a viewer can recognize a reliability of the contribution information.
    Type: Application
    Filed: July 20, 2011
    Publication date: May 9, 2013
    Applicant: RAKUTEN, INC.
    Inventor: Kenji Sugiura
  • Patent number: 8437657
    Abstract: A cleaning apparatus including: a normally-charged toner cleaning member that receives a voltage having a polarity reverse to a normal charging polarity of a toner and electostatically removes a toner having the normal charging polarity on a cleaning target; a reversely-charged toner cleaning member that receives a voltage having the same polarity as the normal charging polarity of a toner and electrostatically removes a toner having a polarity reverse to the normal charging polarity on the cleaning target; and a pre-cleaning member that is disposed at an upstream side of the normally-charged toner cleaning member and the reverse-charged toner cleaning member in a surface moving direction of the cleaning target, receives a voltage having a polarity reverse to the normal charging polarity of the toner, and electrostatically removes a toner having the normal charging polarity on the cleaning target, is provided.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: May 7, 2013
    Assignee: Ricoh Company, Limited
    Inventors: Hisashi Kikuchi, Kenji Sugiura, Osamu Naruse, Naomi Sugimoto, Yoshiki Hozumi, Yuu Sakakibara
  • Publication number: 20130110645
    Abstract: An information providing device can provide an arrangement, in addition to conventional affiliate programs, through which affiliators or the like can get rewards. In the information providing device, when a user of a terminal device specifies an advertisement display area, a partial area including a position specified in the advertisement display area is specified such that a reward is paid to the user allocated to the partial area.
    Type: Application
    Filed: June 28, 2011
    Publication date: May 2, 2013
    Applicant: RAKUTEN, INC.
    Inventors: Kenji Sugiura, Yasuaki Shirogane
  • Publication number: 20130110601
    Abstract: An information providing device which provides screen data including an advertisement display area, to a terminal device through a network, acquires posting information registered in a site on the network, and specifies a commercial transaction target based on the acquired posting information. The information providing device calculates the degree of attention of the commercial transaction target specified based on the acquired posting information, and determines the commercial transaction target which is an advertisement display target, based on the calculated degree of attention.
    Type: Application
    Filed: June 28, 2011
    Publication date: May 2, 2013
    Applicant: RAKUTEN, INC.
    Inventors: Kenji Sugiura, Yasuaki Shirogane
  • Publication number: 20130110649
    Abstract: There is provided an information providing device which, even when one advertisement display area is shared between a plurality of advertisers, can increase the probability that, for example, a banner advertisement of each advertiser is specified and efficiently display information matching each advertiser. The information providing device is configured to, when a user of a terminal device specifies an advertisement display area, specify a partial area including a position specified in the advertisement display area, and transmit information matching a provider allocated to the partial area to the terminal device.
    Type: Application
    Filed: June 28, 2011
    Publication date: May 2, 2013
    Applicant: RAKUTEN, INC.
    Inventors: Kenji Sugiura, Yasuaki Shirogane
  • Patent number: 8433213
    Abstract: A cleaning device includes a normally charged toner cleaning unit, a reversely charged toner cleaning unit, and a pre-cleaning unit. The normally charged toner cleaning unit has a normally charged toner cleaning member, a normally charged toner recovery member, and a normally charged toner scraping member. The reversely charged toner cleaning unit has a reversely charged toner cleaning member, a reversely charged toner recovery member, and a reversely charged toner scraping member. The pre-cleaning unit has a pre-cleaning member, a pre-recovery member, and a pre-scraping member.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: April 30, 2013
    Assignee: Ricoh Company, Limited
    Inventors: Yoshiki Hozumi, Kenji Sugiura, Osamu Naruse, Naomi Sugimoto, Hisashi Kikuchi, Yuu Sakakibara
  • Publication number: 20130057980
    Abstract: The strength of a magnetic field applied from a main pole to an oscillator and the strength of a magnetic field applied from the main pole to a recording medium are improved in a magnetic recording head for microwave assisted recording. In the magnetic recording head according to the present invention, an interval between the main pole and a trailing shield at a place in a position above an air bearing surface is larger than an interval between the main pole and the trailing shield on the air bearing surface.
    Type: Application
    Filed: February 24, 2012
    Publication date: March 7, 2013
    Inventors: Masato SHIIMOTO, Kenji SUGIURA, Mikito SUGIYAMA, Isao NUNOKAWA, Yo SATO, Katsuro WATANABE, Kazuhiko HOSOMI, Nobuo YOSHIDA
  • Publication number: 20130027329
    Abstract: A mobile terminal apparatus according to this invention comprises an acceleration sensor 14 that detects applied acceleration; a storing unit 12 that stores an acceleration condition set in advance for the detected acceleration and stores an alarm condition set in advance for the stored information; and control unit 11 and sound generating unit 16 that alarm about stored information in accordance with an alarming method set in advance so as to correspond to the alarm condition, when the detected acceleration satisfies the stored acceleration condition and the stored information satisfies the stored alarm condition.
    Type: Application
    Filed: December 24, 2010
    Publication date: January 31, 2013
    Applicant: RAKUTEN, INC.
    Inventors: Kenji Sugiura, Takao Oyobe, Yasuko Oishi, Megumi Matsuura, Fumie Suzuki, Yasuaki Shirogane
  • Patent number: 8324850
    Abstract: A motor driver according to the invention comprises (i) an energizing unit supplying drive voltage and drive current to a motor including a moving body and coils, (ii) a speed-position detector detecting a drive speed of the motor and a position of the moving body to output a speed position signal including drive-speed information and position information. The motor driver also includes (iii) a reference signal generator outputting a reference signal, (iv) a phase signal generator using the speed-position signal, the reference signal, and a set signal to output a phase signal indicating a phase of the supplied drive voltage, and (v) a waveforms generator using the position information and the phase signal to output a control signal to the energizing unit. A phase of the supplied drive voltage is regulated to be proportional to the drive speed, wherein a degree of the proportion is set by the set signal.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: December 4, 2012
    Assignee: Panasonic Corporation
    Inventors: Kenji Sugiura, Masahiro Yasohara
  • Patent number: 8326174
    Abstract: A cleaning unit that can remove particles of residual toner remaining on an image carrier after transfer and be incorporated in a process cartridge removably installable to an image forming apparatus, includes a brush roller disposed in contact with the image carrier to remove the residual toner remaining on the image carrier from the image carrier, and a polarity control member disposed in contact with the image carrier to control charge polarities of the residual toner remaining on the image carrier before the residual toner is removed by the brush roller. The polarity control member includes a first surface where the polarity control member contacts the image carrier, a second surface where the polarity control member does not contact the image carrier, and a conductive filler that is not exposed on the first surface that contacts the image carrier.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: December 4, 2012
    Assignee: Ricoh Company, Limited.
    Inventors: Osamu Naruse, Hidetoshi Yano, Kenji Sugiura, Naomi Sugimoto, Hiroki Nakamatsu
  • Patent number: 8280295
    Abstract: A cleaning device includes a cleaning member, a collection member, an electrical field generator, and a separation member. The cleaning member has a surface capable of moving while contacting a surface of a cleaning target to remove toner on the surface of the cleaning target. The collection member has a surface capable of moving while contacting the surface of the cleaning member to collect the toner on the surface of the cleaning member. The electrical field generator generates an electrical field to move the toner from the cleaning member to the collection member. The separation member contacts the surface of the collection member to separate the toner on the surface of the collection member. The collection member has a centerline average surface roughness of not more than 0.1 ?m and shows a surface hardness rank of B or higher in a steel-wool scratch test.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: October 2, 2012
    Assignee: Ricoh Company, Limited
    Inventors: Osamu Naruse, Hidetoshi Yano, Naomi Sugimoto, Kenji Sugiura, Yasuyuki Yamashita
  • Publication number: 20120224870
    Abstract: A novel image forming apparatus including a setting memory storing multiple voltage settings; two or more voltage applying members each contacting a voltage applied member at respective contact positions close to each other, which are simultaneously being applied with respective voltages selected from the voltage settings; two or more current detectors each detecting a current flowing in the respective contact positions; and a setting changer performing a setting changing processing in which the voltage applied to one of the voltage applying members is changed based on the current detected by the corresponding current detector while a predetermined voltage is applied to the other voltage applying members, so that an optimum current flows in the corresponding contact position.
    Type: Application
    Filed: December 7, 2011
    Publication date: September 6, 2012
    Inventors: Hisashi Kikuchi, Takaya Muraishi, Kenji Sugiura, Akira Asaoka, Yoshiki Hozumi, Yuu Sakakibara
  • Patent number: 8242061
    Abstract: An image forming apparatus includes an image bearer that carries a toner image, and a lubricant supplying device that supplies lubricant to the surface of the image bearer. A lubricant supplying device is provided in the image forming apparatus and includes a lubricant block and a brush roller. The brush roller shaves and supplies the lubricant from the lubricant block to the image bearer via the brush roller. The lubricant is made by molding under pressure.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: August 14, 2012
    Assignee: Ricoh Company, Limited
    Inventors: Kenji Sugiura, Takuya Seshita