Patents by Inventor Koichi Otani

Koichi Otani 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: 10774312
    Abstract: It is an object of the present invention to provide a method for producing frozen mesenchymal cells maintaining a viability and an adhesion rate similar to those of cells obtained through a step of culture, without undergoing a step of culturing cells before cryopreservation step. The method comprises dissociating cells by treating a tissue with proteolytic enzymes and cryopreserving the cells. The present invention provides a method for producing frozen mesenchymal cells maintaining a viability and an adhesion rate similar to those of culturing cells without a step of culturings cells before cryopreserving.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: September 15, 2020
    Assignee: ADVANCED CELL TECHNOLOGY AND ENGINEERING LTD.
    Inventors: Toshimitsu Higa, Kenji Otani, Koichi Otomo
  • Patent number: 10527683
    Abstract: A magnetic sensor device comprises a magnetic sensor chip that has a substantially rectangular shape and that contains a magnetic sensor element; and a sealing body, which is composed of a resin material containing magnetic particles and that integrally seals the chip. The chip includes a first and second side surfaces which are mutually opposite to each other, and a third and fourth side surfaces which are mutually opposite to each other and orthogonal to the first and second side surfaces. The sealing body contains first to forth sealing parts. The thicknesses of the first and second sealing parts are smaller than the particle diameter of the particles, and the thickness of at least the third sealing part is larger than the particle diameter of the particles. The particles exist in at least the third sealing part and substantially do not exist in the first and second sealing parts.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: January 7, 2020
    Assignee: TDK Corporation
    Inventors: Kunihiro Ueda, Koichi Otani, Hiraku Hirabayashi, Shuhei Miyazaki
  • Publication number: 20190366673
    Abstract: A decorative laminate film including an inner film and an outer film, and at least a part of a character and/or a figure is formed as a protruded portion protruding toward the outer film. A print layer of a high-brightness ink and/or a foamed film is interposed between the inner film and the outer film, and at least a part of the character and/or the figure has a metallic luster derived from the print layer of the high-brightness ink or a pearly luster derived from the foamed film. The character and/or the figure is distinguished from at least a part of the remaining region in at least one of hue, brightness, chroma and gloss, thereby providing a decorative laminate film, which is imparted by the print design and a protruded portion having a metallic luster and/or a pearly luster, without impairing its function as a packaging material.
    Type: Application
    Filed: January 29, 2018
    Publication date: December 5, 2019
    Applicants: TOYO SEIKAN CO., LTD., TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Takahiro YASUUMI, Koichi ISHIZAKA, Yoshihiro OTANI, Yosuke MORITA
  • Patent number: 10290991
    Abstract: This solid laser amplification device has: a laser medium part that has a solid medium, into which a laser light enters from an entrance part and from which the laser light (L) is emitted to the outside from an exit part, and an amplification layer, which is provided on the surface of the medium, receives the laser light in the medium, and amplifies and reflects said light toward the exit part; a microchannel cooling part that cools the amplification layer; and a thermally conductive part that is provided so as to make contact between the amplification layer and the cooling part and transfers the heat of the amplification layer to the cooling part.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: May 14, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoshiyuki Kondo, Yuichi Otani, Yoshiteru Komuro, Atsushi Kodama, Koichi Hamamoto, Hiroyuki Daigo, Naoki Inoue, Tomoya Morioka, Masahiro Kato, Shingo Nishikata
  • Publication number: 20180275204
    Abstract: A magnetic sensor device comprises a magnetic sensor chip that has a substantially rectangular shape and that contains a magnetic sensor element; and a sealing body, which is composed of a resin material containing magnetic particles and that integrally seals the chip. The chip includes a first and second side surfaces which are mutually opposite to each other, and a third and fourth side surfaces which are mutually opposite to each other and orthogonal to the first and second side surfaces. The sealing body contains first to forth sealing parts. The thicknesses of the first and second sealing parts are smaller than the particle diameter of the particles, and the thickness of at least the third sealing part is larger than the particle diameter of the particles. The particles exist in at least the third sealing part and substantially do not exist in the first and second sealing parts.
    Type: Application
    Filed: March 15, 2018
    Publication date: September 27, 2018
    Inventors: Kunihiro Ueda, Koichi Otani, Hiraku Hirabayashi, Shuhei Miyazaki
  • Publication number: 20170337940
    Abstract: A manufacturing method for a magnetic head forms a leading shield having a top surface. The top surface of the leading shield includes first and second portions. The second portion is located farther from a medium facing surface than is the first portion, and recessed from the first portion. A first gap layer is then formed on the first portion. Then, a magnetic layer including an initial first side shield, an initial second side shield and a coupling section connecting them is formed using a mold. The mold is then removed. The coupling section is then removed by etching the magnetic layer. A second gap layer and a main pole are then formed in this order.
    Type: Application
    Filed: May 23, 2016
    Publication date: November 23, 2017
    Applicant: TDK CORPORATION
    Inventors: Hiroki ARITOMO, Atsushi YAMAGUCHI, Michitaka NISHIYAMA, Yumiko YOKOYAMA, Koichi OTANI
  • Patent number: 9824700
    Abstract: A manufacturing method for a magnetic head forms a leading shield having a top surface. The top surface of the leading shield includes first and second portions. The second portion is located farther from a medium facing surface than is the first portion, and recessed from the first portion. A first gap layer is then formed on the first portion. Then, a magnetic layer including an initial first side shield, an initial second side shield and a coupling section connecting them is formed using a mold. The mold is then removed. The coupling section is then removed by etching the magnetic layer. A second gap layer and a main pole are then formed in this order.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: November 21, 2017
    Assignee: TDK CORPORATION
    Inventors: Hiroki Aritomo, Atsushi Yamaguchi, Michitaka Nishiyama, Yumiko Yokoyama, Koichi Otani
  • Patent number: 8760805
    Abstract: A thin-film magnetic head includes a slider substrate and a write element. The slider substrate has an air bearing surface at one side thereof. The write element has a recording magnetic pole film. The recording magnetic pole film is disposed on a plane crossing the air bearing surface over the slider substrate and has a large-width portion and a small-width portion continuously arranged in the named order toward the air bearing surface. The small-width portion has a smaller width than the large-width portion. Of the large-width portion and the small-width portion, at least the small-width portion has a first portion and a second portion. The second portion is continuous with an upper end of the first portion and has both side faces inclined in such a direction as to increase the width. An external angle of the first portion formed by a plane parallel to a bottom face and the side face is larger than an external angle of the second portion formed by a plane parallel to the bottom face and the side face.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: June 24, 2014
    Assignee: TDK Corporation
    Inventors: Hisayoshi Watanabe, Hitoshi Hatate, Hideyuki Yatsu, Koichi Otani
  • Patent number: 8404431
    Abstract: A method for manufacturing a thin-film magnetic head includes processes of forming a polishing position sensor and a recording head portion alongside on one side of a wafer. The process of forming the recording head portion has a step of performing a photolithography process after applying an alkali soluble resin film and a photoresist film in the named order. The process of forming the polishing position sensor has a step of performing a photolithography process on the photoresist film while having only the photoresist film out of the alkali soluble resin film and the photoresist film.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: March 26, 2013
    Assignee: TDK Corporation
    Inventors: Hitoshi Hatate, Hisayoshi Watanabe, Masachika Hashino, Koichi Otani
  • Publication number: 20130010390
    Abstract: A thin-film magnetic head includes a slider substrate and a write element. The slider substrate has an air bearing surface at one side thereof. The write element has a recording magnetic pole film. The recording magnetic pole film is disposed on a plane crossing the air bearing surface over the slider substrate and has a large-width portion and a small-width portion continuously arranged in the named order toward the air bearing surface. The small-width portion has a smaller width than the large-width portion. Of the large-width portion and the small-width portion, at least the small-width portion has a first portion and a second portion. The second portion is continuous with an upper end of the first portion and has both side faces inclined in such a direction as to increase the width. An external angle of the first portion formed by a plane parallel to a bottom face and the side face is larger than an external angle of the second portion formed by a plane parallel to the bottom face and the side face.
    Type: Application
    Filed: July 5, 2011
    Publication date: January 10, 2013
    Applicant: TDK Corporation
    Inventors: Hisayoshi WATANABE, Hitoshi HATATE, Hideyuki YATSU, Koichi OTANI
  • Patent number: 8323517
    Abstract: A method of forming a magnetic pole section of a perpendicular magnetic recording type thin-film magnetic head and a method of manufacturing a perpendicular magnetic recording type thin-film magnetic head that include forming on an under layer a resist pattern having an opening, forming a first nonmagnetic layer, forming a first magnetic layer forming a magnetic layer pattern, removing the resist pattern and then applying a resist layer onto a first nonmagnetic layer and a magnetic layer pattern, developing or ashing partway the applied resist layer and baking the remaining resist layer, removing the first nonmagnetic layer from at least a side surface of the magnetic layer pattern by etching with the baked resist layer being left, removing all of the resist layer and then forming a second nonmagnetic layer on at least the magnetic layer pattern, and forming a second magnetic layer on the formed second nonmagnetic layer.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: December 4, 2012
    Assignee: TDK Corporation
    Inventors: Hisayoshi Watanabe, Hideyuki Yatsu, Masachika Hashino, Koichi Otani
  • Patent number: 8325440
    Abstract: A magnetic head incorporates: a medium facing surface; a coil; a pole layer; first and second shields disposed to sandwich the pole layer therebetween; a first gap layer disposed between the first shield and the pole layer; a second gap layer disposed between the second shield and the pole layer; and a substrate. The first shield is located closer to the substrate than the second shield. The magnetic head further incorporates an antireflection film disposed between the first shield and the first gap layer or between the first gap layer and the pole layer. The pole layer is formed by frame plating.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: December 4, 2012
    Assignees: TDK Corporation, Sae Magnetics (H.K.) Ltd.
    Inventors: Tatsuya Harada, Koichi Otani, Hidetaka Kawano, Kenji Yokoyama, Naoto Matono
  • Patent number: 8248728
    Abstract: A magnetic pole of a magnetic head includes a narrow and a wide portion, and is formed of a plating film. An electrode film forms the plating film, and is provided only under at least a part of the wide portion. A manufacturing method for the magnetic head includes: forming a plating-film-accommodating layer with an accommodating groove; forming the electrode film in part of the accommodating groove; and forming the plating film in the accommodating groove by plating using the electrode film. The accommodating groove includes a narrow and a wide groove portion for accommodating the narrow and wide portions, respectively. The electrode film is provided only in at least a part of the wide groove portion. In the step of forming the plating film, the plating film grows from the surface of the electrode film, and the narrow groove portion is filled with a part of the plating film.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: August 21, 2012
    Assignee: TDK Corporation
    Inventors: Atsushi Yamaguchi, Masaya Kato, Koichi Otani, Wakako Okawa
  • Patent number: 8117737
    Abstract: A manufacturing method for a magnetic head includes the steps of: forming a structure on a lower shield, the structure including a lower gap, a main magnetic pole and first and second side gaps; forming first and second side shields; forming an upper gap; and forming an upper shield. In the step of forming the structure, an initial lower gap layer is formed on the lower shield, the initial lower gap layer including a pre-lower-gap portion, and two to-be-removed portions that are located on opposite sides of the pre-lower-gap portion. Then, a protrusion including the main magnetic pole and the first and second side gaps is formed on the pre-lower-gap portion. With the top surface of the protrusion covered with a mask, the initial lower gap layer is etched in part to thereby form the lower gap.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: February 21, 2012
    Assignee: TDK Corporation
    Inventors: Hisayoshi Watanabe, Masachika Hashino, Michitoshi Tsuchiya, Koichi Otani, Tatsuhiro Nojima, Tsutomu Nishinaga, Hideyuki Ukita
  • Patent number: 8072231
    Abstract: A testing method of a wafer provided with a plurality of thin-film magnetic heads is provided. Each of the plurality of thin-film magnetic heads includes a main pole layer, a first test pad formed on the wafer and electrically connected with an extended top end section of the main pole layer and a second test pad formed on the wafer and electrically connected with a back end section of the main pole layer. The testing method includes a step of measuring an electrical resistance between the first test pad and the second test pad, a step of judging whether the measured electrical resistance is within a set range, and a step of discriminating that the thin-film magnetic head is a non-defective product when the measured electrical resistance is within the set range.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: December 6, 2011
    Assignee: TDK Corporation
    Inventors: Isamu Toba, Yasuhiro Hasegawa, Koichi Otani, Takamitsu Sakamoto
  • Publication number: 20110240593
    Abstract: A method of forming a magnetic pole section of a perpendicular magnetic recording type thin-film magnetic head and a method of manufacturing a perpendicular magnetic recording type thin-film magnetic head that include forming on an under layer a resist pattern having an opening, forming a first nonmagnetic layer, forming a first magnetic layer, forming a magnetic layer pattern, removing the resist pattern and then applying a resist layer onto a first nonmagnetic layer and a magnetic layer pattern, developing or ashing partway the applied resist layer and baking the remaining resist layer, removing the first nonmagnetic layer from at least a side surface of the magnetic layer pattern by etching with the baked resist layer being left, removing all of the resist layer and then forming a second nonmagnetic layer on at least the magnetic layer pattern, and forming a second magnetic layer on the formed second nonmagnetic layer.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 6, 2011
    Applicant: TDK CORPORATION
    Inventors: Hisayoshi WATANABE, Hideyuki YATSU, Masachika HASHINO, Koichi OTANI
  • Patent number: 8000064
    Abstract: A perpendicular recording thin-film magnetic head comprises a main magnetic pole having a tip main magnetic pole part extending in a height direction from a medium-opposing surface and a base main magnetic pole part connected to the tip main magnetic pole part on a side opposite from the medium-opposing surface side and wider than the tip main magnetic pole part in a track width direction; a return yoke extending in the height direction from the medium-opposing surface and magnetically coupling with the base main magnetic pole part at a position distanced from the medium-opposing surface in the height direction, while opposing the tip main magnetic pole part through a write gap layer in a bit length direction in the medium-opposing surface; and a main magnetic pole adjacent magnetic shield layer extending along at least part of side faces of the main magnetic pole other than the medium-opposing surface as seen in a laminating direction, while holding a nonmagnetic layer between the main magnetic pole and the
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: August 16, 2011
    Assignees: TDK Corporation, SAE Magnetics (H.K.) Ltd.
    Inventors: Hidetaka Kawano, Hiromichi Umehara, Takamitsu Sakamoto, Koichi Otani, Noriaki Kasahara, Naoto Matono
  • Patent number: 7995308
    Abstract: A magnetic head incorporates: a medium facing surface; a coil; a pole layer; first and second shields disposed to sandwich the pole layer therebetween; a first gap layer disposed between the first shield and the pole layer; a second gap layer disposed between the second shield and the pole layer; and a substrate. The first shield is located closer to the substrate than the second shield. The first shield has a first layer and a second layer disposed between the first layer and the first gap layer.
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: August 9, 2011
    Assignees: TDK Corporation, SAE Magnetics (H.K.) Ltd.
    Inventors: Koichi Otani, Naoto Matono, Tatsuya Harada, Kenji Yokoyama, Hidetaka Kawano
  • Publication number: 20110188151
    Abstract: A magnetic pole of a magnetic head includes a narrow and a wide portion, and is formed of a plating film. An electrode film forms the plating film, and is provided only under at least a part of the wide portion. A manufacturing method for the magnetic head includes: forming a plating-film-accommodating layer with an accommodating groove; forming the electrode film in part of the accommodating groove; and forming the plating film in the accommodating groove by plating using the electrode film. The accommodating groove includes a narrow and a wide groove portion for accommodating the narrow and wide portions, respectively. The electrode film is provided in at least a part of the wide groove portion. In the step of forming the plating film, the plating film grows from the surface of the electrode film, and the narrow groove portion is filled with a part of the plating film.
    Type: Application
    Filed: February 1, 2010
    Publication date: August 4, 2011
    Applicant: TDK CORPORATION
    Inventors: Atsushi YAMAGUCHI, Masaya KATO, Koichi OTANI, Wakako OKAWA
  • Publication number: 20110127234
    Abstract: A manufacturing method for a magnetic head includes the steps of; forming a structure on a lower shield, the structure including a lower gap, a main magnetic pole and first and second side gaps; forming first and second side shields; forming an upper gap; and forming an upper shield. In the step of forming the structure, an initial lower gap layer is formed on the lower shield, the initial lower gap layer including a pre-lower-gap portion, and two to-be-removed portions that are located on opposite sides of the pre-lower-gap portion. Then, a protrusion including the main magnetic pole and the first and second side gaps is formed on the pre-lower-gap portion. With the top surface of the protrusion covered with a mask, the initial lower gap layer is etched in part to thereby form the lower gap.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 2, 2011
    Applicant: TDK CORPORATION
    Inventors: Hisayoshi Watanabe, Masachika Hashino, Michitoshi Tsuchiya, Koichi Otani, Tatsuhiro Nojima, Tsutomu Nishinaga, Hideyuki Ukita