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).

  • Patent number: 9348243
    Abstract: An electrophotographic photosensitive member includes a photosensitive layer containing a naphthalenediimide derivative represented by the following general formula (1). In the general formula (1), R1 represents an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms and optionally having an alkyl group having 1 to 10 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms. R2 and R3, independently from each other, each represent an alkyl group having 1 to 4 carbon atoms, a halogen group, or a cyano group.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: May 24, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hideki Okada
  • Patent number: 9314870
    Abstract: A tool driving section of a friction stir spot welding device is configured to advance and retract each of a pin member and a shoulder member. A tool driving control section is configured to control the tool driving section such that an absolute value of a tool average position Tx is small, wherein Tx is defined by a following equation: Ap·Pp+As·Ps=Tx, where Ap is a cross-section area of a front end surface of the pin member, As is a cross-section area of a front end surface of the shoulder member, Pp is a press-fit depth of the pin member press-fitted from a front surface of an object to be welded, and Ps is a press-fit depth of the shoulder member press-fitted from the front surface of the object to be welded. Thus, especially in a double-acting friction stir spot welding, excellent welding quality can be accurately achieved according to welding conditions, and an internal cavity defect can be prevented or suppressed.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: April 19, 2016
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hideki Okada, Hajime Kashiki, Kazumi Fukuhara, Mitsuo Fujimoto
  • Patent number: 9302343
    Abstract: Friction stir spot-welding is performed to join together a stack of a plurality of metal foils and a metal sheet by using a double-acting type rotary tool including a hollow member and a pin member which are movable independently of each other in their axial directions, and a clamp member which is fitted on an outer circumferential surface of the hollow member and which is movable in its axial direction. While an outer annular part of a portion to be friction-stirred is pressed with the clamp member, the pin member is inserted into the above-described portion and the hollow member is retracted, whereby a metal mass is accommodated within a space formed between the above-described portion and the hollow member. Then, the hollow member is advanced to press the metal mass into a hole formed by retraction of the pin member, whereby the hole is filled with the metal mass.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: April 5, 2016
    Assignees: UACJ Corporation, Kawasaki Jukogyo Kabushiki Kaisha, Obara Corporation
    Inventors: Masaki Kumagai, Hideki Okada, Arinobu Mori, Kenji Hayafuji
  • Publication number: 20160062253
    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: Application
    Filed: August 27, 2015
    Publication date: March 3, 2016
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Hideki OKADA, Fumio SUGAI, Kensuke KOJIMA, Hiroki TSURUMI, Yohei YAMAMOTO, Eiichi MIYAMOTO
  • Publication number: 20160062254
    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: Application
    Filed: August 27, 2015
    Publication date: March 3, 2016
    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Hideki OKADA, Kensuke KOJIMA, Fumio SUGAI, Hiroki TSURUMI, Yohei YAMAMOTO, Eiichi MIYAMOTO
  • Patent number: 9256144
    Abstract: An electrophotographic photosensitive member containing a terphenoquinone derivative represented by the following formula (1): wherein R1 to R5 may be the same or different and each represent a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms and optionally having an alkyl group having 1 to 12 carbon atoms, an aralkyl group having 6 to 12 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, or an alkoxy group having 2 to 6 carbon atoms.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: February 9, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Hideki Okada, Keiji Maruo
  • Publication number: 20160033885
    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: Application
    Filed: July 24, 2015
    Publication date: February 4, 2016
    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Hideki OKADA, Fumio SUGAI, Kensuke KOJIMA
  • Publication number: 20160024132
    Abstract: A compound represented by a formula [1D] as shown below (wherein R1A, R1B, R2A, R2B, R3A and R3B represent a hydrogen atom, an optionally substituted C1-6 alkyl group, and the like) is useful as an intermediate for producing a thionucleoside, and the production method of the present invention is useful as a method for producing a thionucleoside.
    Type: Application
    Filed: October 2, 2015
    Publication date: January 28, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Kouki NAKAMURA, Satoshi SHIMAMURA, Junichi IMOTO, Motomasa TAKAHASHI, Katsuyuki WATANABE, Kenji WADA, Yuuta FUJINO, Takuya MATSUMOTO, Makoto TAKAHASHI, Hideki OKADA, Takehiro YAMANE, Takayuki ITO
  • Publication number: 20150378269
    Abstract: A hydrazone derivative of triphenylamine is represented by general formula (1). In general formula (1), R1 and R2 each represent, independently of one another, at least one 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. In general formula (1), m and n each represent, independently of one another, an integer of at least 0 and no greater than 4. In general formula (1), 1 represents 0 or 1.
    Type: Application
    Filed: June 15, 2015
    Publication date: December 31, 2015
    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Hideki OKADA, Kensuke KOJIMA, Fumio SUGAI
  • Publication number: 20150378268
    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 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. In general formula (I), m and n each represent an integer of at least 0 and no greater than 4. When m and n 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.
    Type: Application
    Filed: June 29, 2015
    Publication date: December 31, 2015
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Hideki OKADA, Kensuke KOJIMA, Fumio SUGAI
  • Patent number: 9221865
    Abstract: A compound represented by a formula [1D] as shown below (wherein R1A, R1B, R2A, R2B, R3A and R3B represent a hydrogen atom, an optionally substituted C1-6 alkyl group, and the like) is useful as an intermediate for producing a thionucleoside, and the production method of the present invention is useful as a method for producing a thionucleoside.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: December 29, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Kouki Nakamura, Satoshi Shimamura, Junichi Imoto, Motomasa Takahashi, Katsuyuki Watanabe, Kenji Wada, Yuuta Fujino, Takuya Matsumoto, Makoto Takahashi, Hideki Okada, Takehiro Yamane, Takayuki Ito
  • Publication number: 20150343871
    Abstract: A compressive residual stress portion having a compressive residual stress from a surface of a wire to a first depth is formed between end turn portions of a coil spring. The first portion of the end turn portion is always in contact with a spring seat. The second portion contacts the spring seat when the load applied to the coil spring is large, and is separated from the spring seat when the load is small. The third portion is always separated from the spring seat. In the end turn portion, in a region including the second portion, a deep residual stress portion is formed by ultrasonic shot peening. The deep residual stress portion has a compressive residual stress from a surface of the wire to a second depth deeper than the first depth.
    Type: Application
    Filed: July 1, 2015
    Publication date: December 3, 2015
    Applicant: NHK SPRING CO., LTD.
    Inventors: Akira TANGE, Hideki OKADA
  • Patent number: 9193151
    Abstract: An ink jet recording method using a recording apparatus including a plurality of ink jet heads, comprising performing printing by depositing droplets of an ink composition ejected from the ink jet heads on a recording medium, wherein the ink jet heads are aligned in a direction cross to a transporting direction of the recording medium and the ink composition has a yield value of 0.50 to 2.00 mPa.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: November 24, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Hideki Okada, Masaru Kumagai, Takamasa Ikagawa
  • Patent number: 9187514
    Abstract: A compound represented by a formula [1D] as shown below (wherein R1A, R1B, R2A, R2B, R3A and R3B represent a hydrogen atom, an optionally substituted C1-6 alkyl group, and the like) is useful as an intermediate for producing a thionucleoside, and the production method of the present invention is useful as a method for producing a thionucleoside.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: November 17, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Kouki Nakamura, Satoshi Shimamura, Junichi Imoto, Motomasa Takahashi, Katsuyuki Watanabe, Kenji Wada, Yuuta Fujino, Takuya Matsumoto, Makoto Takahashi, Hideki Okada, Takehiro Yamane, Takayuki Ito
  • Publication number: 20150299836
    Abstract: A method of manufacturing a formed component for aircraft use according to the present invention includes: subjecting a material made of an aluminum alloy to solution heat treatment; then forming the material into a predetermined shape under cold working conditions; and thereafter subjecting the material to artificial age-hardening treatment. Under the cold working, the material is formed into the predetermined shape while a strain corresponding to a temper T8 is being imparted to the material by a roll forming apparatus. This makes it possible to manufacture a formed component for aircraft use made of an aluminum alloy in a T8 state at a lower cost than conventional art.
    Type: Application
    Filed: December 19, 2013
    Publication date: October 22, 2015
    Inventors: Hideki OKADA, Chikara ISHIKAWA, Etsuko YAMADA, Takumi WADA
  • Publication number: 20150231734
    Abstract: A tool driving section of a friction stir spot welding device is configured to advance and retract each of a pin member and a shoulder member. A tool driving control section is configured to control the tool driving section such that an absolute value of a tool average position Tx is small, wherein Tx is defined by a following equation: Ap·Pp+As·Ps=Tx, where Ap is a cross-section area of a front end surface of the pin member, As is a cross-section area of a front end surface of the shoulder member, Pp is a press-fit depth of the pin member press-fitted from a front surface of an object to be welded, and Ps is a press-fit depth of the shoulder member press-fitted from the front surface of the object to be welded. Thus, especially in a double-acting friction stir spot welding, excellent welding quality can be accurately achieved according to welding conditions, and an internal cavity defect can be prevented or suppressed.
    Type: Application
    Filed: May 1, 2015
    Publication date: August 20, 2015
    Inventors: Hideki OKADA, Hajime KASHIKI, Kazumi FUKUHARA, Mitsuo FUJIMOTO
  • Patent number: 9109133
    Abstract: The ink jet ink includes pigment, first resin which has a glass-transition temperature of less than 20° C. and a weight-average molecular weight of not more than 10000, second resin which has a glass-transition temperature of not less than 23° C., and specific polyoxyalkylene glycol monoalkyl ether.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: August 18, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Soichi Yamazaki, Hideki Okada, Hiroaki Kumeta, Daisuke Ishihara
  • Patent number: 9095926
    Abstract: A tool driving section of a friction stir spot welding device is configured to advance and retract each of a pin member and a shoulder member. A tool driving control section is configured to control the tool driving section such that an absolute value of a tool average position Tx defined by a following equation: Ap·Pp+As·Ps=Tx, where Ap is a cross-section area of a front end surface of the pin member, As is a cross-section area of a front end surface of the shoulder member, Pp is a press-fit depth of the pin member press-fitted from a front surface of an object to be welded, and Ps is a press-fit depth of the shoulder member press-fitted from the front surface of the object to be welded, is small.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: August 4, 2015
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hideki Okada, Hajime Kashiki, Kazumi Fukuhara, Mitsuo Fujimoto
  • Publication number: 20150183054
    Abstract: A double-acting friction stir welding tool according to the present invention at least includes: a columnar pin member; and a shoulder member positioned outside the pin member and having a cylindrical shape, the shoulder member being configured to rotate around an axis, which is the same as an axis of rotation of the pin member. A contact surface and an outer peripheral surface of the pin member, the contact surface coming into contact with a workpiece, have non-affinity for the workpiece. The shoulder member is configured such that an inner peripheral surface and an outer peripheral surface, the inner peripheral surface facing the pin member, have non-affinity for the workpiece, and only a contact surface coming into contact with the workpiece has an affinity for the workpiece. A clearance between the pin member and the shoulder member may be suitably set.
    Type: Application
    Filed: August 6, 2013
    Publication date: July 2, 2015
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventor: Hideki Okada
  • Publication number: 20150183053
    Abstract: Friction stir spot-welding is performed to join together a stack of a plurality of metal foils and a metal sheet by using a double-acting type rotary tool including a hollow member and a pin member which are movable independently of each other in their axial directions, and a clamp member which is fitted on an outer circumferential surface of the hollow member and which is movable in its axial direction. While an outer annular part of a portion to be friction-stirred is pressed with the clamp member, the pin member is inserted into the above-described portion and the hollow member is retracted, whereby a metal mass is accommodated within a space formed between the above-described portion and the hollow member. Then, the hollow member is advanced to press the metal mass into a hole formed by retraction of the pin member, whereby the hole is filled with the metal mass.
    Type: Application
    Filed: December 22, 2014
    Publication date: July 2, 2015
    Inventors: Masaki KUMAGAI, Hideki OKADA, Arinobu MORI, Kenji HAYAFUJI