Patents by Inventor Takeshi Kojima

Takeshi Kojima 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: 20150353740
    Abstract: The present invention provides: an LED device from which light can be efficiently extracted for a long period of time because of less degradation of a reflective layer for reflecting light emitted from an LED element or the like; and a coating liquid that is used for the production of the LED device. The LED device includes a substrate, an LED element disposed on the substrate, a reflective layer disposed at least around the LED element on the substrate, wherein the reflective layer contains a white pigment and a polysiloxane, the rate of decrease in reflectance of light with a wavelength of 500 nm of the reflective layer after storage of the reflective layer at 180° C. for 1,000 hours is 10% or less of the reflectance before storage at 180° C., and the reflective layer has no glass transition point in the range of from ?70° C. to 150° C.
    Type: Application
    Filed: January 10, 2014
    Publication date: December 10, 2015
    Inventor: Takeshi KOJIMA
  • Publication number: 20150350529
    Abstract: An image pickup device includes a pixel region having a plurality of pixels that are two-dimensionally arranged, the plurality of pixels including a plurality of image pickup pixels and a plurality of focus detection pixels capable of phase difference detection; a plurality of microlenses arranged to correspond to respective photoelectric conversion units of respective image pickup pixels; and a plurality of microlenses arranged to correspond to respective photoelectric conversion units of the respective focus detection pixels. When at least one of the plurality of microlenses is orthogonally projected onto the corresponding photoelectric conversion unit, a vertex position of the at least one microlens is off a center position of the at least one microlens.
    Type: Application
    Filed: May 29, 2015
    Publication date: December 3, 2015
    Inventors: Taro Kato, Jun Iba, Kazunari Kawabata, Takeshi Kojima
  • Patent number: 9201378
    Abstract: A cleaning unit, which is included in a process cartridge or an image forming apparatus, includes a brush rotary body to remove toner, a toner collecting rotary body to collect the toner, a toner collecting blade to scrape the toner, and a cleaning blade to scrape the toner falling from the brush rotary body. The image carrier, the brush rotary body, and the toner collecting rotary body rotate in the same direction. The cleaning blade, the brush rotary body, and the toner collecting rotary body are located to cause a tangential line passing through a contact area of the brush rotary body and the toner collecting rotary body on an outer peripheral circle around a shaft of the brush rotary body to have an intersection point intersecting a non-contact surface of the cleaning blade disposed opposite to a contact portion of the cleaning blade with the image carrier.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: December 1, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Akira Asaoka, Hirotaka Hatta, Toshiya Sato, Takeshi Kojima, Hiroyuki Uenishi, Yusuke Ishizuka
  • Publication number: 20150331362
    Abstract: A sealing member is attached to a second member attached to and detached from a first member having a first opening through which powder passes and having a second opening that communicates with the first opening when the second member is coupled to the first member, and prevents the powder from leaking from a coupling portion between the first opening and the second opening. The sealing member includes: a first elastic member with a first surface arranged on the second member; and a second elastic member arranged on at least a part of a periphery of the first elastic member and having hardness different from that of the first elastic member.
    Type: Application
    Filed: May 8, 2015
    Publication date: November 19, 2015
    Applicant: Ricoh Company, Limited
    Inventors: Yuta AZEYANAGI, Takeshi KOJIMA, Hajime TERAJI, Hiromichi NINOMIYA, Michiya OKAMOTO, Shinya KARASAWA, Kentaroh NODERA, Daisuke SAWADA
  • Patent number: 9190449
    Abstract: An image pickup apparatus includes a plurality of pixels each including a photoelectric conversion unit, an amplification element configured to amplify a signal based on a signal charge generated in the photoelectric conversion unit, and a first signal holding unit and a second signal holding unit located at a stage following the first signal holding unit and arranged on an electric path between the photoelectric conversion unit and an input node of the amplification element, in which a coverage by a light-shielding member of the first signal holding unit is lower than a coverage by a light-shielding member of the second signal holding unit.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: November 17, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Kobayashi, Yuichiro Yamashita, Takeshi Kojima, Itsutaku Sano
  • Patent number: 9184352
    Abstract: The purpose is to provide a phosphor particle dispersion liquid in which the phosphor particles do not settle out when the phosphor dispersion liquid is left to stand. The phosphor dispersion liquid contains phosphor particles, clay mineral particles, inorganic particles, and a solvent. The phosphor dispersion liquid has viscosity ?1 of 10 to 500 mPa·s at a shear rate of 1000 (1/s) at 25° C., and viscosity ?2 of 1.0×103 to 1.0×105 mPa·s at a shear rate of 1 (1/s) at 25° C.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: November 10, 2015
    Assignee: KONICA MINOLTA, INC.
    Inventor: Takeshi Kojima
  • Publication number: 20150305644
    Abstract: A sympathetic skin response measuring sympathetic skin response measuring method includes supplying a power for stimulating only C fibers in a living body, to a stimulation electrode applied to the living body, measuring information of a sympathetic skin response based on a signal obtained from a measurement electrode applied to the living body, and outputting the information measured in the measuring step.
    Type: Application
    Filed: July 8, 2015
    Publication date: October 29, 2015
    Inventors: Jun MOTOGI, Yoshinobu ONO, Ryosuke USHIJIMA, Takeshi KOJIMA
  • Publication number: 20150307717
    Abstract: An object of the present invention is to provide an LED device having a less-degradable reflective layer that is provided to reflect emitted light and the like from an LED element and allows efficient light extraction over long periods, and to provide a method for producing such an LED device. To achieve the object, there is provided a coating liquid including a white pigment, silane compounds, and a solvent and satisfying both of the following conditions: 0?R2?20 (formula 1); and 0?R4/R3?3 (formula 2), wherein R2, R3, and R4 are the contents (% by mole) of bifunctional, trifunctional, and tetrafunctional silane compounds, respectively, in the total amount of the silane compounds.
    Type: Application
    Filed: December 27, 2013
    Publication date: October 29, 2015
    Inventor: Takeshi KOJIMA
  • Patent number: 9170554
    Abstract: A cleaning device includes a brush to contact a photoconductive member, a roller to contact the brush, and a blade. The blade is located along the roller in a longitudinal direction. The blade has a first portion, a second portion, and a bent portion between the first portion and the second portion. A contact surface or edge of the first portion contacts a surface of the roller to remove toner therefrom.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: October 27, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Takeshi Kojima, Hirotaka Hatta, Toshiya Satoh, Akira Asaoka
  • Patent number: 9158739
    Abstract: In a pendular motion determination unit of a motion stabilizer for a tractor, a parameter computation unit computes a determination parameter PA indicative of a quantity of change in an actual yaw rate Y, a threshold value setting unit computes a threshold value PAth for the parameter PA, and a determination unit determines that a pendular motion caused by swaying motion of a trailer is imparted, if the parameter PA is greater than the threshold value PAth. Based upon at least one of a value related to the actual yaw rate Y and a value related to the standard yaw rate Ys, an evaluation value computation unit computes a steering-back maneuver evaluation value TS (indicative of a possibility of making periodical steering-back maneuvers), based upon which at least one of the threshold value PAth and the parameter PA is changed.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: October 13, 2015
    Assignees: NISSIN KOGYO CO., LTD., HONDA MOTOR CO., LTD.
    Inventors: Kazuaki Miyata, Takeshi Kojima, Tomoyuki Futamura
  • Patent number: 9153752
    Abstract: A method of manufacturing a light-emitting device including a light-emitting element which emits light with a predetermined wavelength and a wavelength conversion portion including a fluorescent substance which is excited by the light emitted from the light-emitting element to emit fluorescence with a wavelength different from the predetermined wavelength, includes the followings. First, spraying so as to apply a liquid mixture containing a layered silicate mineral and a translucent ceramic precursor on the light-emitting element from a nozzle is performed while the nozzle is moved relative to the light-emitting element. Subsequently, forming of the wavelength conversion portion by heating the sprayed and applied liquid mixture is performed.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: October 6, 2015
    Assignee: KONICA MINOLTA ADVANCED LAYERS, INC.
    Inventor: Takeshi Kojima
  • Patent number: 9141020
    Abstract: A charger positioning adjuster, which is included in an image forming apparatus and disposed facing a charger uniformly charging a surface of an image carrier using corona discharging, includes a mounting part provided at a position on which the charger is detachably attached, a positioning member attached to the mounting part and positioning the charger by contacting thereto, and a spacer disposed between the mounting part and the positioning member and adjusting a distance between the surface of the image carrier and the charger.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: September 22, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Uenishi, Hirotaka Hatta, Toshiya Sato, Takeshi Kojima, Akira Asaoka, Yusuke Ishizuka
  • Publication number: 20150261172
    Abstract: The waste toner container includes: a waste toner detection unit configured to detect a state in which a toner surface of waste toner at that position is displaced up to a ceiling portion or near the ceiling portion. The waste toner detection unit includes: a flexibility member installed so as to cover an opening portion formed in the ceiling portion or a side wall and is configured to be deformed by a direct or indirect push by the waste toner; and a movable member formed so as to contact the flexibility member from outside of the container and so as to be displaced by the direct or indirect push by the waste toner interposing the flexibility member such that displacement thereof is detected by a detection unit. The displacement of the movable member is limited by a regulating member.
    Type: Application
    Filed: February 27, 2015
    Publication date: September 17, 2015
    Applicant: RICOH COMPANY, LIMITED
    Inventors: Shinya KARASAWA, Hiromichi NINOMIYA, Takeshi KOJIMA, Hajime TERAJI, Michiya OKAMOTO, Takuma IWASAKI, Daisuke SAWADA, Kentaroh NODERA, Daisuke TOMITA, Masanori MORO
  • Publication number: 20150234341
    Abstract: A cleaning device comprises: a to-be-cleaned member; a cleaning member that cleans the surface of the to-be-cleaned member; a conveying member that conveys a substance removed from the surface of the to-be-cleaned member to outside of the device; a rotatable collecting member that conveys with its surface the substance toward the conveying member; and a partitioning member that guides the substance from the collecting member to the conveying member. The collecting member comprises a conveying portion that carries and conveys the substance; and a protrusion that protrudes toward an upstream side of the conveying portion in a rotating direction of the collecting member. One end of the partitioning member faces the rotating collecting member, and the other end faces the conveying member. The conveying portion and the protrusion are brought into contact with the partitioning member by the rotation of the collecting member.
    Type: Application
    Filed: January 30, 2015
    Publication date: August 20, 2015
    Applicant: RICOH COMPANY, LIMITED
    Inventors: Hajime TERAJI, Hiromichi NINOMIYA, Takeshi KOJIMA, Michiya OKAMOTO, Takuma IWASAKI, Shinya KARASAWA, Daisuke SAWADA, Kentaroh NODERA, Masanori MORO
  • Publication number: 20150227108
    Abstract: An image forming apparatus includes an image bearer; a developing device to develop a latent image; a transfer device to transfer a developed image from the image bearer; a developer collecting device to collect developer remaining on the image bearer; a waste-developer container to contain developer to be disposed, a switching determiner to perform determination of a preferred transfer amount of developer in a target period, estimation of an accumulative consumption of developer in the target period, determination of whether to dispose or reuse collected developer collected by the developer collecting device, and determination of whether to perform switching between disposal and reuse of the collected developer based on comparison between the preferred transfer amount and the estimated accumulative consumption of developer; and a switching controller to cause the developer collecting device to perform the switching between disposal and reuse.
    Type: Application
    Filed: February 13, 2015
    Publication date: August 13, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Tetsuto Ueda, Hiroomi Tamura, Kazuya Saitoh, Sho Sekiguchi, Hirokatsu Suzuki, Takeshi Kojima, Takuma Iwasaki
  • Publication number: 20150175196
    Abstract: An object of the present invention is to provide a vehicle turning control system capable of maintaining stability of a vehicle, even in a case where a mode of output characteristics of a power plant for the vehicle is switched by a driver's operation. In a running mode in which output characteristics of an engine is higher, the vehicle turning control system increases a control gain of a feedforward control unit for performing yaw moment control of the vehicle by feedforward control, and decreases a control gain of a feedback control unit for performing yaw moment control of the vehicle by feedback control. A control gain of vehicle behavior stabilization control performed by the vehicle behavior stabilization control unit is controlled commonly regardless of the running mode.
    Type: Application
    Filed: December 18, 2014
    Publication date: June 25, 2015
    Inventors: Kazutaka OHMURA, Takeshi KOJIMA, Tomoyuki FUTAMURA
  • Publication number: 20150158472
    Abstract: In a vehicle braking system for stabilizing vehicle behavior: a motor control unit determines whether or not the motor control unit receives a drive forbid signal from a yaw-moment control unit, when the motor control unit receives a drive instruction signal from a vehicle-behavior stabilization control unit. The motor control unit receives the drive forbid signal when the yaw-moment control unit performs yaw-moment control. The motor control unit forbids prepressurization using a slave cylinder, when the motor control unit receives the drive forbid signal.
    Type: Application
    Filed: December 10, 2014
    Publication date: June 11, 2015
    Inventors: Kazutaka OHMURA, Takeshi KOJIMA, Tomoyuki FUTAMURA
  • Publication number: 20150155315
    Abstract: In a photoelectric conversion apparatus including a plurality of pixels arranged in a matrix, each pixel including a photoelectric conversion unit, first and second holding units that hold electric charge, a first transfer unit that connects the photoelectric conversion unit and the first holding unit, a second transfer unit that connects the first and second holding units, and a third transfer unit that connects the photoelectric conversion unit and a power supply, each pixel is controlled so that the potential of the third transfer unit for electric charge held in the photoelectric conversion unit is higher than that of the first transfer unit at least during a charge accumulation period of the pixel, and thereafter, the potential of the third transfer unit is higher than that of the photoelectric conversion unit while the potentials of the first and second transfer units are lower than that of the photoelectric conversion unit.
    Type: Application
    Filed: February 12, 2015
    Publication date: June 4, 2015
    Inventors: Ginjiro Toyoguchi, Yuichiro Yamashita, Takeshi Kojima
  • Publication number: 20150125716
    Abstract: Provided is a method for producing a plated steel sheet with high Si content for hot stamping, which is capable of suppressing the generation of unplated portions, while maintaining high bonding strength in a welded part in cases where a galvanized steel sheet containing a large amount of Si, namely, 0.7% or more of Si is used for hot stamping applications. In this production method, a hot-rolled pickled steel sheet or cold-rolled steel sheet containing 0.10-0.5% by mass of C, 0.7-2.5% by mass of Si, 1.0-3% by mass of Mn, and 0.01-0.5% by mass of Al is annealed in a reducing atmosphere and then plated, thereby producing a galvanized steel sheet for hot stamping. This method for producing a galvanized steel sheet for hot stamping is characterized in that the annealing is carried out within the range of 500 to 700° C. for 30 to 270 seconds.
    Type: Application
    Filed: April 23, 2013
    Publication date: May 7, 2015
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Takeshi Kojima, Hiroshi Irie, Takeshi Minowa
  • Publication number: 20150118773
    Abstract: The purpose is to provide a phosphor particle dispersion liquid in which the phosphor particles do not settle out when the phosphor dispersion liquid is left to stand. The phosphor dispersion liquid contains phosphor particles, clay mineral particles, inorganic particles, and a solvent. The phosphor dispersion liquid has viscosity ?1 of 10 to 500 mPa·s at a shear rate of 1000 (1/s) at 25° C., and viscosity ?2 of 1.0×103 to 1.0×105 mPa·s at a shear rate of 1 (1/s) at 25° C.
    Type: Application
    Filed: October 5, 2012
    Publication date: April 30, 2015
    Applicant: Konica Minolta, Inc.
    Inventor: Takeshi Kojima