Patents by Inventor Hideki Okada

Hideki Okada 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).

  • QUINONE DERIVATIVE AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER
    Publication number: 20170363977
    Abstract: A quinone derivative is represented by general formula (1), (2), or (3). In general formulae (1), (2), and (3), R1, R2, R3, R4, R11, R12, R13, R14, R21, R22, R23, and R24 each represent, independently of one another, a hydrogen atom, a cyano group, a halogen atom, an optionally substituted alkyl group having a carbon number of 1-6, or an optionally substituted alkoxy group having a carbon number of 1-6. R5, R6, R15, R16, R25, and R26 each represent, independently of one another, an optionally substituted alkyl group having a carbon number of 1-6, an optionally substituted alkoxy group having a carbon number of 1-6, an optionally substituted aryl group having a carbon number of 6-14, an optionally substituted aralkyl group having a carbon number of 7-12, or an optionally substituted cycloalkyl group having a carbon number of 3-10.
    Type: Application
    Filed: June 7, 2017
    Publication date: December 21, 2017
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Hideki OKADA, Fumio SUGAI, Kensuke KOJIMA
  • QUINONE DERIVATIVE AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER
    Publication number: 20170363978
    Abstract: A quinone derivative is represented by general formula (1). In general formula (1), at least one of R1-R3 and at least one of R4-R6 each represent, independently of one another, an alkyl group having 4 to 10 carbon atoms or an alkyl group having 2 to 5 carbon atoms that has an aryl group having 6 to 14 carbon atoms. All other of R1-R3 and all other of R4-R6 each represent, independently of one another, an alkyl group having 1 to 6 carbon atoms, an aryl group having 6 to 14 carbon atoms, or a cycloalkyl group having 3 to 10 carbon atoms.
    Type: Application
    Filed: June 9, 2017
    Publication date: December 21, 2017
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Hideki OKADA
  • Friction stir spot welding apparatus, friction stir spot welding method, and perpendicular-to-plane detection device for use in friction stir spot welding
    Patent number: 9839973
    Abstract: A friction stir spot welding apparatus according to the present invention includes: a rotary tool; and a perpendicular-to-plane detector, which detects whether or not the rotary tool is positioned to be in a perpendicular-to-plane state relative to a joining target portion of workpieces. The perpendicular-to-plane detector measures distances to at least three measurement positions set around the joining target portion by means of, for example, position sensors. The measurement positions are set to be positioned at the vertices of a polygon on a reference plane to which forward and backward movement directions of the rotary tool are normal. The perpendicular-to-plane detector detects that the rotary tool is positioned to be in the perpendicular-to-plane state relative to the joining target portion of the workpieces if all the distances to the measurement positions are equal to each other.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: December 12, 2017
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hideki Okada, Ryoji Ohashi, Satoru Yamasumi
  • PRODUCTION METHOD FOR STABILIZERS
    Publication number: 20170349961
    Abstract: The invention provides a production method for stabilizers which produces with high productivity in a compact production line, without tempering. The production method for stabilizers of the invention includes: forming a steel bar material containing at least C: 0.15 wt % to 0.39 wt %, Mn, B and Fe into a product shape by bending; and quenching the bent steel bar material in a medium having a heat transfer coefficient higher than or close to that of water.
    Type: Application
    Filed: December 7, 2015
    Publication date: December 7, 2017
    Inventors: Shinichiro KUWATSUKA, Yurika OKUDAIRA, Akira TANGE, Hideki OKADA, Ken TAKAHASHI
  • STABILIZER
    Publication number: 20170349962
    Abstract: A stabilizer formed by using a metal bar having a solid structure and configured to reduce a displacement between right and left wheels, including a torsion part extending in a vehicle width direction, being capable of a torsional deformation, and having a diameter of 10 to 32 mm, is provided. The stabilizer has a chemical composition containing at least C: 0.15% by mass or more to 0.39% by mass or less, Mn, B, and Fe, and also has a metal structure 90% or more of which is a martensite structure.
    Type: Application
    Filed: December 4, 2015
    Publication date: December 7, 2017
    Inventors: Shinichiro KUWATSUKA, Yurika OKUDAIRA, Akira TANGE, Hideki OKADA, Ken TAKAHASHI
  • FRICTION STIR SPOT WELDING APPARATUS AND FRICTION STIR SPOT WELDING METHOD
    Publication number: 20170341176
    Abstract: A friction stir spot welding apparatus includes a pin member, a shoulder member, a rotation driver, a forward/backward movement driver, and a controller. The controller controls the forward/backward movement driver, such that the pin member and/or the shoulder member press workpieces before a clamp member presses the workpieces, and then controls the rotation driver and the forward/backward movement driver, such that the pin member and the shoulder member stir the workpieces.
    Type: Application
    Filed: December 14, 2015
    Publication date: November 30, 2017
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hideki OKADA, Junichi TAMURA, Kenichi KAMIMUKI
  • Benzidine derivative, method for producing benzidine derivative, and electrophotographic photosensitive member
    Patent number: 9817325
    Abstract: A benzidine derivative is represented by general formula (1). In the general formula (1), R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 each represent, independently of one another, a hydrogen atom, a halogen atom, an optionally substituted alkyl group having a carbon number of at least 1 and no greater than 6, an optionally substituted alkoxy group having a carbon number of at least 1 and no greater than 6, or an optionally substituted aryl group having a carbon number of at least 6 and no greater than 14. n represents an integer of at least 0 and no greater than 2.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: November 14, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hideki Okada
  • FRICTION STIR SPOT WELDING DEVICE AND FRICTION STIR SPOT WELDING METHOD
    Publication number: 20170304935
    Abstract: A friction stir spot welding device includes a pin member, a shoulder member, a rotation driving unit, a tool driving unit, a position detector, and a controller, wherein the controller sets as reference position of the tip end surface of the pin member or shoulder member at a time point when the pin member tip end surface or shoulder member contacts an obverse surface of an object and controls the tool driving unit reducing a pressing force to the object by the pin member and pressing force to the object by the shoulder member in a next welding process, and/or controls the rotation driving unit reducing the pin member rotational speed and shoulder member rotational speed in the next welding process, in case where a first position is the position of the tip end surface of the pin member or the shoulder member is within a first region.
    Type: Application
    Filed: October 22, 2015
    Publication date: October 26, 2017
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hideki OKADA, Shintaro FUKADA
  • Electrophotographic photosensitive member
    Patent number: 9791793
    Abstract: A triphenylamine derivative is represented by general formula (1). In the general formula (1): R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 each represent, independently of one another, a hydrogen atom, an optionally substituted alkyl group having a carbon number of at least 1 and no greater than 6, an optionally substituted alkoxy group having a carbon number of at least 1 and no greater than 6, an optionally substituted alkenyl group having a carbon number of at least 2 and no greater than 6, or an optionally substituted aryl group having a carbon number of at least 6 and no greater than 14; m represents an integer of at least 1 and no greater than 3; and n represents an integer of at least 0 and no greater than 2.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: October 17, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hideki Okada
  • Quinone derivative and electrophotographic photosensitive member
    Patent number: 9783493
    Abstract: A quinone derivative represented by general formula (1), where, in the general formula (1), R1 and R2 each represent, independently of one another, an alkyl group, a cycloalkyl group, an alkoxy group, an aralkyl group, or an aryl group, R3 represents a halogen atom, an alkyl group, an alkoxy group, or an aryl group, m represents an integer of no less than 0 and no greater than 4, and when m represents an integer of no less than 2, chemical groups R3 may be the same as or different from one another.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: October 10, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Hideki Okada, Fumio Sugai, Kensuke Kojima
  • Quinone derivative and electrophotographic photosensitive member
    Patent number: 9783491
    Abstract: A quinone derivative represented by general formula (1) where, in the general formula (1), chemical groups R1 each represent, independently of one another, an alkyl group, a cycloalkyl group, an alkoxy group, an aralkyl group, or an aryl group, and R2 represents an alkyl group, an aralkyl group, a cycloalkyl group, an alkoxy group, an aryl group, or a heterocyclic group.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: October 10, 2017
    Assignee: KYOCERA Documents Solutions Inc.
    Inventors: Hideki Okada, Fumio Sugai, Kensuke Kojima
  • APPARATUS FOR AND METHOD OF MANUFACTURING ROLL-FORMED COMPONENT HAVING VARIABLE WIDTH
    Publication number: 20170203350
    Abstract: Forming roll units included in an apparatus for manufacturing a roll-formed component each include a roll pair. The roll pair includes a receiving roll part and a first bending roll part that face each other. A plate member passing area is formed below the first bending roll part, the plate member passing area allowing a roll formed member excluding its side edge portions to pass through. The roll pair is configured to make, during bending, sliding movement in a width direction of the roll formed member and rotational movement about a normal direction to the roll formed member as a rotational center.
    Type: Application
    Filed: December 27, 2016
    Publication date: July 20, 2017
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hideki OKADA, Yasuhiro KASUMI
  • Triarylamine derivative, electrophotographic photosensitive member, and image forming apparatus
    Patent number: 9690217
    Abstract: A triarylamine derivative is represented by general formula (I). In general formula (I), R1 and R2 each represent, independently of one another, a chemical group selected from the group consisting of a halogen atom, an optionally substituted alkyl group having a carbon number of 1-6, an optionally substituted alkoxy group having a carbon number of 1-6, and an optionally substituted aryl group having a carbon number of 6-12. In general formula (I), k and l each represent an integer of at least 0 and no greater than 4. When k and l represent integers greater than 1, chemical groups R1 bonded to the same aromatic ring and chemical groups R2 bonded to the same aromatic ring may be the same or different to one another. In general formula (I), m and n each represent a different integer of at least 1 and no greater than 3.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: June 27, 2017
    Assignee: KYOCERA Document Solutions, Inc.
    Inventors: Hideki Okada, Fumio Sugai, Kensuke Kojima, Hiroki Tsurumi, Yohei Yamamoto, Eiichi Miyamoto
  • Triphenylamine derivative, electrophotographic photosensitive member, and image forming apparatus
    Patent number: 9684253
    Abstract: A triphenylamine derivative is represented by general formula (1). In general formula (1), R1 to R7 each represent, independently of one another, a chemical group selected from the group consisting of a halogen atom, an optionally substituted alkyl group having a carbon number of at least 1 and no greater than 6, an optionally substituted alkoxy group having a carbon number of at least 1 and no greater than 6, and an optionally substituted aryl group having a carbon number of at least 6 and no greater than 12. Also, k, l, m, n, o, and p each represent, independently of one another, an integer of at least 0 and no greater than 4. When any of k, l, m, n, o, or p represents an integer greater than 1, chemical groups R3, R4, R5, R6, or R7 bonded to the same aromatic ring may be the same or different.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: June 20, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Hideki Okada, Kensuke Kojima, Fumio Sugai, Hiroki Tsurumi, Yohei Yamamoto, Eiichi Miyamoto
  • Diamine compound and electrophotographic photosensitive member
    Patent number: 9684254
    Abstract: A diamine compound is represented by general formula (1). In the general formula (1), R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 each represent, independently of one another, a hydrogen atom, a halogen atom, an optionally substituted alkyl group having a carbon number of at least 1 and no greater than 6, an optionally substituted alkoxy group having a carbon number of at least 1 and no greater than 6, or an optionally substituted aryl group having a carbon number of at least 6 and no greater than 14. m represents an integer of at least 1 and no greater than 3. n represents an integer of at least 0 and no greater than 2.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: June 20, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hideki Okada
  • VERTICAL MOTION IMPELLER-TYPE SHOT PEENING DEVICE AND COIL SPRING
    Publication number: 20170157744
    Abstract: A vertical motion impeller-type shot peening device performs a second shot peening to a coil spring including first shot peening indentations. The vertical motion impeller-type shot peening device includes a workpiece holding mechanism including a lower end turn support and an upper end turn support, a stress applying mechanism which compresses the coil spring, a rotation mechanism, and a projection mechanism which includes a pair of vertically movable impeller units. A first rough surface including first shot peening indentations is formed on a part of end turn portions of the coil spring. A second rough surface including second shot peening indentations is formed on the entire surface of wire except for the first rough surface.
    Type: Application
    Filed: February 16, 2017
    Publication date: June 8, 2017
    Applicant: NHK SPRING CO., LTD.
    Inventors: Senri MORIYAMA, Satoshi AKIYAMA, Masaya KOMAZAKI, Go NAGAYASU, Hideki OKADA, Daisuke YOKOTA
  • NAPHTHALENEDICARBOXIMIDE DERIVATIVE AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER
    Publication number: 20170153560
    Abstract: A naphthalenedicarboximide derivative is represented by general formula (1) or (2). In general formulas (1) and (2), R1, R2, and R3 each represent, independently of one another, an alkyl group which has a carbon number from 1 to 10 and which may have an aryl group having a carbon number from 6 to 14, an aryl group which has a carbon number from 6 to 14 and which may have an alkyl group having a carbon number from 1 to 10, a cycloalkyl group having a carbon number from 3 to 10, or an alkoxy group having a carbon number from 1 to 6, and m represents an integer from 0 to 4. When m represents an integer of 2 or more, chemical groups R2 may each be the same or may each be different.
    Type: Application
    Filed: November 23, 2016
    Publication date: June 1, 2017
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Hideki OKADA
  • TRIARYLAMINE DERIVATIVE, ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, AND METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER
    Publication number: 20170131647
    Abstract: A triarylamine derivative represented by general formula (1) below. In the general formula (1), R1, R2, R4, R5, R6, R7, R8, and R9 each represent, independently from one another, a hydrogen atom, an optionally substitute alkyl group having a carbon number of at least 1 and no greater than 6, an optionally substituted alkoxy group having a carbon number of at least 1 and no greater than 6, or an optionally substituted aryl group having a carbon number of at least 6 and no greater than 14, R3 represents an alkyl group having a carbon number of at least 1 and no greater than 4, X represents an alkylene group having a carbon number of at least 1 and no greater than 6 or an oxygen atom, and n represents an integer of 1 to 3.
    Type: Application
    Filed: November 8, 2016
    Publication date: May 11, 2017
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Kensuke OKAWA, Hideki OKADA, Jun AZUMA, Fumio SUGAI, Kensuke KOJIMA
  • MULTI-LAYER ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
    Publication number: 20170060006
    Abstract: A multi-layer electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer. The photosensitive layer includes a charge generating layer and a charge transport layer. The charge generating layer contains a charge generating material. The charge transport layer contains a hole transport material and a binder resin. The charge generating material contains a titanyl phthalocyanine that exhibits a main peak at a Bragg angle (2?±0.2°) of 27.2° in a CuK? characteristic X-ray diffraction spectrum. The hole transport material contains a triarylamine derivative represented by generic formula (1). The hole transport material has a mass ratio of at least 0.30 and no greater than 0.55 relative to the binder resin in the charge transport layer. In general formula (1), R1, R2, l, and m are the same as those defined in the specification.
    Type: Application
    Filed: August 25, 2016
    Publication date: March 2, 2017
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Akihiko OGATA, Hideki OKADA, Jun AZUMA, Kensuke OKAWA
  • Electrophotographic photosensitive member
    Patent number: 9581921
    Abstract: An electrophotographic photosensitive member includes a photosensitive layer containing a charge generating material, a charge transport material, and a binder resin. The photosensitive layer is a multi-layer type photosensitive layer or a single-layer type photosensitive layer. The multi-layer type photosensitive layer includes a charge generating layer that contains the charge generating material and a charge transport layer that contains the charge transport material and the binder resin, and in which the charge transport layer is located on the charge generating layer. The single-layer type photosensitive layer contains the charge generating material, the charge transport material, and the binder resin. The charge transport material is an enamine derivative represented by general formula (1). In general formula (1), R1, R2, l, m, and n are each as defined in the specification.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: February 28, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Hideki Okada, Fumio Sugai, Kensuke Kojima