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).

  • Publication number: 20160362389
    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: August 24, 2016
    Publication date: December 15, 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: 20160355536
    Abstract: There is provided a production method of a compound represented by the following formula (II) through a step of reacting a compound represented by the following General Formula (I) with a sulfur compound. In General Formulas (I) and (II), R1 represents a hydrogen atom or an acyl group, R2 represents a hydrogen atom, a fluorine atom, an acyloxy group, an arylmethyloxy group, an allyloxy group, an arylmethyloxycarbonyloxy group, or an allyloxycarbonyloxy group, R3 represents a hydrogen atom or an acyloxy group, R5 represents an alkyl group or an aryl group, and X represents a leaving group. Here, in a case where R2 is a fluorine atom, an acyloxy group, an arylmethyloxy group, an allyloxy group, an arylmethyloxycarbonyloxy group, or an allyloxycarbonyloxy group, R3 is an acyloxy group.
    Type: Application
    Filed: August 16, 2016
    Publication date: December 8, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Takayuki ITO, Toru WATANABE, Hideki OKADA, Hidenobu KUNIYOSHI
  • Patent number: 9494881
    Abstract: A triarylamine derivative is represented by general formula (1) shown below. In general formula (1), each R1 independently represents 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, or an optionally substituted aryl group having a carbon number of 6-12. Each k independently represents an integer of 0-4, and each m independently represents an integer of 1-3. Each R2 independently represents 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, or an optionally substituted aryl group having a carbon number of 6-12. Each p independently represents an integer of 0-4.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: November 15, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Hideki Okada, Fumio Sugai, Kensuke Kojima
  • Publication number: 20160318120
    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: Application
    Filed: December 27, 2013
    Publication date: November 3, 2016
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hideki OKADA, Ryoji OHASHI, Satoru YAMASUMI
  • Patent number: 9475835
    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: October 2, 2015
    Date of Patent: October 25, 2016
    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
  • Patent number: 9454091
    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: Grant
    Filed: June 15, 2015
    Date of Patent: September 27, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Hideki Okada, Kensuke Kojima, Fumio Sugai
  • Patent number: 9447022
    Abstract: A triarylamine derivative is represented by general formula (1) shown below. In general formula (1), R1, R2, and R3 each represent, independently of one another, 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 12. In general formula (1), o, p, and q each represent, independently of one another, an integer of at least 0 and no greater than 4, and m and n each represent, independently of one another, an integer of at least 1 and no greater than 2.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: September 20, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Hideki Okada, Fumio Sugai, Kensuke Kojima
  • Publication number: 20160263696
    Abstract: A friction stir welding apparatus includes: a rotary tool provided with a stirring pin at its distal end; a shoulder, in which the rotary tool is inserted; a rotation driving unit, which causes the rotary tool to rotate about an axis; a pressing device, which presses the rotary tool and the shoulder against an inner corner portion; a moving device, which moves the rotary tool and the shoulder in an advancing direction along the inner corner portion; and a wire heating device, which heats a wire, which is friction-stirred together with two metal members (joining target members) by the stirring pin.
    Type: Application
    Filed: October 1, 2014
    Publication date: September 15, 2016
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hidehito NISHIDA, Syuhei YOSHIKAWA, Kenichi KAMIMUKI, Hideki OKADA, Hiroki ORIBE
  • Patent number: 9436105
    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: Grant
    Filed: June 29, 2015
    Date of Patent: September 6, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Hideki Okada, Kensuke Kojima, Fumio Sugai
  • Patent number: 9429859
    Abstract: An electrophotographic photosensitive member includes a photosensitive layer that contains a charge generating material, a hole transport material, a binder resin, and a plasticizer. The hole transport material contains a triarylamine derivative represented by General Formula (1) below. The plasticizer contains at least one of a compound represented by General Formula (2a) and a compound represented by General Formula (2b) below.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: August 30, 2016
    Assignee: KYOCERA Document Solutions, Inc.
    Inventors: Jun Azuma, Hideki Okada
  • Patent number: 9404547
    Abstract: A steel for high-strength spring has an Ac3 transformation temperature as an indicator of the decarburization performance, which is calculated by Equation (1) below, is from 859 to 885° C., a maximum hardened diameter DI as an indicator of the hardening performance, which is calculated by Equation (2) below, is from 70 to 238 mm, and a temper hardness HRC as an indicator of the spring performance, which is calculated by Equation (3) below, is from 50 to 55. Ac3=910?203×?{square root over (C)}?15.2Ni+44.7Si+104V+31.5Mo+13.1W??(1) DI=DO×fSi×fMn×fP×fS×fCu×fNi×fCr??(2) HRC=38.99+17.48C+2.55Si?2.28Ni+2.37Cr+8.04Ti??(3) wherein, D0=8.65×?{square root over (C)}, fSi=1+0.64×% Si, fMn=1+4.10×% Mn, fP=1+2.83×% P, fS=1?0.62×% S, fCu=1+0.27×% Cu, fNi=1+0.52×% Ni, and fCr=1+2.33×% Cr.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: August 2, 2016
    Assignee: NHK SPRING CO., LTD.
    Inventors: Hideki Okada, Akira Tange, Koichi Tango, Isao Sumiyoshi
  • Patent number: 9383664
    Abstract: An electrophotographic photosensitive member includes a photosensitive layer containing a naphthalenediimide derivative represented by the following formula (1) or (2). In the formula (1) or (2), 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.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: July 5, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hideki Okada
  • Patent number: 9376371
    Abstract: A triphenylamine derivative is represented by General Formula (1). In General Formula (1), OR1 represents an alkoxy group having 2 to 8 carbon atoms. R2 to R6 each independently represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms. Ar1 and Ar2 each independently represent a hydrogen atom, an aryl group having 6 to 20 carbon atoms and optionally substituted with an alkyl group having 1 to 6 carbon atoms, an aryl group having 6 to 20 carbon atoms and optionally substituted with an alkoxy group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, or a 3- to 10-membered heterocyclic group. Note that the case where Ar1 and Ar2 are both a hydrogen atom is excluded.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: June 28, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Fumio Sugai, Kensuke Kojima, Kenji Kitaguchi, Hideki Okada
  • Publication number: 20160179020
    Abstract: A triarylamine derivative is represented by general formula (1) shown below. In general formula (1), each R1 independently represents 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, or an optionally substituted aryl group having a carbon number of 6-12. Each k independently represents an integer of 0-4, and each m independently represents an integer of 1-3. Each R2 independently represents 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, or an optionally substituted aryl group having a carbon number of 6-12. Each p independently represents an integer of 0-4.
    Type: Application
    Filed: November 27, 2015
    Publication date: June 23, 2016
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Hideki OKADA, Fumio SUGAI, Kensuke KOJIMA
  • Publication number: 20160152557
    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: Application
    Filed: November 27, 2015
    Publication date: June 2, 2016
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Hideki OKADA, Fumio SUGAI, Kensuke KOJIMA
  • Publication number: 20160152556
    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: Application
    Filed: November 27, 2015
    Publication date: June 2, 2016
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Hideki OKADA, Fumio SUGAI, Kensuke KOJIMA
  • Publication number: 20160152552
    Abstract: A triarylamine derivative is represented by general formula (1) shown below. In general formula (1), R1, R2, and R3 each represent, independently of one another, 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 12. In general formula (1), o, p, and q each represent, independently of one another, an integer of at least 0 and no greater than 4, and m and n each represent, independently of one another, an integer of at least 1 and no greater than 2.
    Type: Application
    Filed: November 27, 2015
    Publication date: June 2, 2016
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Hideki OKADA, Fumio SUGAI, Kensuke KOJIMA
  • 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