Patents by Inventor Yoshikazu Sawada

Yoshikazu Sawada 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: 20210238049
    Abstract: Provided are a method for producing hydrocyanic acid and a device for producing hydrocyanic acid, which can improve a yield of the hydrocyanic acid in a vapor phase contact ammoxidation reaction of methanol. The method for producing hydrocyanic acid includes a step of obtaining hydrocyanic acid by a vapor phase contact ammoxidation reaction by supplying a raw material gas including methanol in a fluidized bed reactor (1) through a raw material gas disperser (7) disposed in the fluidized bed reactor (1) and bringing the methanol into contact with ammonia and oxygen in the presence of a metal oxide catalyst, in which the raw material gas disperser (7) has one or more pores for releasing the raw material gas into the fluidized bed reactor (1), and the number of pores per unit cross-sectional area of the fluidized bed reactor (1) is 10 to 45 pieces/m2.
    Type: Application
    Filed: April 2, 2021
    Publication date: August 5, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Shimpei Kato, Yoshikazu Sawada
  • Patent number: 9242978
    Abstract: The present invention is to create a compound that selectively activates glucokinase in the liver, and in particular, to provide an agent for treating and preventing diabetes and impaired glucose tolerance, wherein the agent has a low hypoglycemia risk. A compound represented by the formula (1) as shown below, or a salt thereof, or a solvate of the compound or the salt: wherein, in the following formula (1), ring A represents a thiazolyl group, a pyridyl group, a pyrazyl group, or a pyrazolyl group; L represents —(CO)—, —(CS)—, or —SO2—; and R1 represents a C1-6 alkyl group, a hydroxy C1-6 alkyl group, a C1-6 alkoxy group, an amino group, a C1-6 alkylamino group, a hydroxyamino group, an N—C1-6 alkylcarbamoyl group, or a group represented by the formula (2) as shown below, wherein R3 represents a C1-6 alkyl group; and R2 represents a hydrogen atom, a halogen atom, a C1-6 alkyl group, a C1-6 alkoxy group, or a carboxyl group.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: January 26, 2016
    Assignee: Kowa Company, Ltd.
    Inventors: Takahisa Ogamino, Shin Tanikawa, Yoshiharu Miyake, Shinsuke Itoh, Yoshikazu Sawada
  • Publication number: 20150218151
    Abstract: The present invention is to create a compound that selectively activates glucokinase in the liver, and in particular, to provide an agent for treating and preventing diabetes and impaired glucose tolerance, wherein the agent has a low hypoglycemia risk. A compound represented by the formula (1) as shown below, or a salt thereof, or a solvate of the compound or the salt: [wherein, in the following formula (1), ring A represents a thiazolyl group, a pyridyl group, a pyrazyl group, or a pyrazolyl group; L represents —(CO)—, —(CS)—, or —SO2—; and R1 represents a C1-6 alkyl group, a hydroxy C1-6 alkyl group, a C1-6 alkoxy group, an amino group, a C1-6 alkylamino group, a hydroxyamino group, an N—C1-6 alkylcarbamoyl group, or a group represented by the formula (2) as shown below, wherein R3 represents a C1-6 alkyl group; and R2 represents a hydrogen atom, a halogen atom, a C1-6 alkyl group, a C1-6 alkoxy group, or a carboxyl group].
    Type: Application
    Filed: September 25, 2013
    Publication date: August 6, 2015
    Inventors: Takahisa Ogamino, Shin Tanikawa, Yoshiharu Miyake, Shinsuke Itoh, Yoshikazu Sawada
  • Patent number: 8552328
    Abstract: The invention provides a method for fixing up the deterioration of a magneto-resistive effect device. A hard disk system is provided in it with a head heating means for heating a thin-film magnetic head, and by that head heating means, a defective site of the magneto-resistive effect device, which occurs as the hard disk system is in operation and is confined in a quasi-stable state, is fixed up in such a way as to return back to its own normal stable state. Thus, the deteriorated site of the magneto-resistive effect device (reproducing device) in the thin-film magnetic head, which is caused by the so-called thermal asperity as the hard disk system is in operation, is fixed up while it remains built in the hard disk system, i.e., without dismantling the hard disk system.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: October 8, 2013
    Assignee: TDK Corporation
    Inventors: Takumi Yanagisawa, Yosuke Antoku, Yoshikazu Sawada
  • Patent number: 8462467
    Abstract: A thin film magnetic head includes: a magneto resistance effect film of which electrical resistance varies corresponding to an external magnetic field; a pair of shields provided on both sides in a manner of sandwiching the MR film in a direction that is orthogonal to a film surface of the MR film; an anisotropy providing layer that provides exchange anisotropy to a first shield of the pair of shields in order to magnetize the first shield in a desired direction, and that is disposed on the opposite side from the MR film with respect to the first shield; and side shields that are disposed on both sides of the MR film in a track width direction and that include soft magnetic layers magnetically connected with the first shield.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: June 11, 2013
    Assignee: TDK Corporation
    Inventors: Takumi Yanagisawa, Yasushi Nishioka, Takahiko Machita, Satoshi Miura, Takayasu Kanaya, Kenzo Makino, Yoshikazu Sawada, Takekazu Yamane, Naomichi Degawa, Kosuke Tanaka, Soji Koide, Daisuke Miyauchi
  • Patent number: 8437106
    Abstract: A thin film magnetic head includes; an MR film that includes a pinned layer of which a magnetization direction is pinned, a free layer of which a magnetization direction varies, and a spacer that is disposed therebetween; a pair of shields that are disposed on both sides sandwiching the MR film in a direction orthogonal to a film surface of the MR film; and an anisotropy providing layer that provides anisotropy to a first shield so that the first shield is magnetized in a desired direction, and that is disposed on an opposite side from the MR film with respect to the first shield. The MR film includes a magnetic coupling layer that is disposed between the first shield and the free layer and that magnetically couples the first shield with the free layer.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: May 7, 2013
    Assignee: TDK Corporation
    Inventors: Takumi Yanagisawa, Yasushi Nishioka, Takahiko Machita, Satoshi Miura, Takayasu Kanaya, Kenzo Makino, Yoshikazu Sawada, Takekazu Yamane, Naomichi Degawa, Kosuke Tanaka, Soji Koide, Daisuke Miyauchi
  • Patent number: 8402635
    Abstract: A method of manufacturing a magnetic head, including a magneto resistance effect (MR) element that reads a magnetic recording medium, is disclosed. A multilayer film is formed on a shield layer. Unnecessary portions of the multilayer film are removed from both sides of the MR element in a first direction orthogonal to a lamination direction of the multilayer film and parallel to the MR element surface facing the magnetic recording medium. An insulating layer is formed on a surface exposed by removal of the unnecessary portions. An integrated soft magnetic layer covering both sides of the MR element in the first direction and an upper side of the MR element is formed, thereby configuring a second shield layer. An anisotropy application layer is formed on the second shield layer, thereby providing exchange anisotropy to the soft magnetic layer, and magnetizing the soft magnetic layer in a predetermined direction.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: March 26, 2013
    Assignee: TDK Corporation
    Inventors: Naomichi Degawa, Takumi Yanagisawa, Satoshi Miura, Yoshikazu Sawada, Takahiko Machita, Kenzo Makino, Takekazu Yamane, Shohei Kawasaki
  • Publication number: 20120250189
    Abstract: A magnetic head that reads information of a magnetic recording medium is provided. The magnetic head according to one embodiment includes: an MR element, formed with multilayer films, of which an electrical resistance changes according to an external magnetic field; a first shield layer that is disposed on a lower side in an lamination direction of the MR element; a second shield layer that is disposed on an upper side in the lamination direction of the MR element, and that applies voltage to the MR element together with the first shield layer; and side shield layers that are disposed on both sides of the MR element in a truck width direction. The side shield layers include soft magnetic layers and hard magnetic layers magnetized in a predetermined direction.
    Type: Application
    Filed: March 29, 2011
    Publication date: October 4, 2012
    Applicant: TDK Corporation
    Inventors: Naomichi DEGAWA, Takumi Yanagisawa, Satoshi Miura, Yoshikazu Sawada, Takahiko Machita, Kenzo Makino, Takekazu Yamane, Shohei Kawasaki
  • Publication number: 20120240390
    Abstract: A method of manufacturing a magnetic head that includes a magneto resistance effect (MR) element of which an electrical resistance changes according to an external magnetic field and shield layers surrounding the MR element, and that reads information of a magnetic recording medium is provided.
    Type: Application
    Filed: March 21, 2011
    Publication date: September 27, 2012
    Applicant: TDK Corporation
    Inventors: Naomichi Degawa, Takumi Yanagisawa, Satoshi Miura, Yoshikazu Sawada, Takahiko Machita, Kenzo Makino, Takekazu Yamane, Shohei Kawasaki
  • Publication number: 20120087046
    Abstract: A thin film magnetic head includes: a magneto resistance effect film of which electrical resistance varies corresponding to an external magnetic field; a pair of shields provided on both sides in a manner of sandwiching the MR film in a direction that is orthogonal to a film surface of the MR film; an anisotropy providing layer that provides exchange anisotropy to a first shield of the pair of shields in order to magnetize the first shield in a desired direction, and that is disposed on the opposite side from the MR film with respect to the first shield; and side shields that are disposed on both sides of the MR film in a track width direction and that include soft magnetic layers magnetically connected with the first shield.
    Type: Application
    Filed: October 8, 2010
    Publication date: April 12, 2012
    Applicant: TDK Corporation
    Inventors: Takumi Yanagisawa, Yasushi Nishioka, Takahiko Machita, Satoshi Miura, Takayasu Kanaya, Kenzo Makino, Yoshikazu Sawada, Takekazu Yamane, Naomichi Degawa, Kosuke Tanaka, Soji Koide, Daisuke Miyauchi
  • Publication number: 20120087045
    Abstract: A thin film magnetic head includes; an MR film that includes a pinned layer of which a magnetization direction is pinned, a free layer of which a magnetization direction varies, and a spacer that is disposed therebetween; a pair of shields that are disposed on both sides sandwiching the MR film in a direction orthogonal to a film surface of the MR film; and an anisotropy providing layer that provides anisotropy to a first shield so that the first shield is magnetized in a desired direction, and that is disposed on an opposite side from the MR film with respect to the first shield. The MR film includes a magnetic coupling layer that is disposed between the first shield and the free layer and that magnetically couples the first shield with the free layer.
    Type: Application
    Filed: October 8, 2010
    Publication date: April 12, 2012
    Applicant: TDK Corporation
    Inventors: Takumi Yanagisawa, Yasushi Nishioka, Takahiko Machita, Satoshi Miura, Takayasu Kanaya, Kenzo Makino, Yoshikazu Sawada, Takekazu Yamane, Naomichi Degawa, Kosuke Tanaka, Soji Koide, Daisuke Miyauchi
  • Patent number: 7764468
    Abstract: Provided is a smear-removing method that can remove smear of a manufactured thin-film magnetic head. The method is performed to a thin-film magnetic head including an MR effect element for reading data having two electrode layers sandwiching an MR effect multilayer as a magneto-sensitive portion therebetween. The method comprises the step of applying a stress voltage less than a breaking voltage of the MR effect element between the two electrode layers to burn off smear. In the method, it is preferable that the stress voltage is applied while an electric resistance or an output voltage of the MR effect element is measured, and the stress voltage is increased until the value of the electric resistance or the output voltage reaches an upper limit specified value specified from a value of an electric resistance or an output voltage in a normal case where smear is not present.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: July 27, 2010
    Assignees: TDK Corporation, SAE Magnetics (H.K.) Ltd.
    Inventors: Yoshikazu Sawada, Norio Takahashi, Masaru Hirose, Mitsuo Otsuki, Shoji Toyoda, Anthony Wai Yuen Lai
  • Publication number: 20090168255
    Abstract: The invention provides a method for fixing up the deterioration of a magneto-resistive effect device. A hard disk system is provided in it with a head heating means for heating a thin-film magnetic head, and by that head heating means, a defective site of the magneto-resistive effect device, which occurs as the hard disk system is in operation and is confined in a quasi-stable state, is fixed up in such a way as to return back to its own normal stable state. Thus, the deteriorated site of the magneto-resistive effect device (reproducing device) in the thin-film magnetic head, which is caused by the so-called thermal asperity as the hard disk system is in operation, is fixed up while it remains built in the hard disk system, i.e., without dismantling the hard disk system.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 2, 2009
    Applicant: TDK Corporation
    Inventors: Takumi Yanagisawa, Yosuke Antoku, Yoshikazu Sawada
  • Publication number: 20080251099
    Abstract: Provided is a smear-removing method that can remove smear of a manufactured thin-film magnetic head. The method is performed to a thin-film magnetic head including an MR effect element for reading data having two electrode layers sandwiching an MR effect multilayer as a magneto-sensitive portion therebetween. The method comprises the step of applying a stress voltage less than a breaking voltage of the MR effect element between the two electrode layers to burn off smear. In the method, it is preferable that the stress voltage is applied while an electric resistance or an output voltage of the MR effect element is measured, and the stress voltage is increased until the value of the electric resistance or the output voltage reaches an upper limit specified value specified from a value of an electric resistance or an output voltage in a normal case where smear is not present.
    Type: Application
    Filed: April 16, 2007
    Publication date: October 16, 2008
    Applicants: TDK CORPORATION, SAE Magnetics (H.K.) Ltd.
    Inventors: Yoshikazu SAWADA, Norio Takahashi, Masaru Hirose, Mitsuo Otsuki, Shoji Toyoda, Anthony Wai Yuen Lai
  • Patent number: 7359149
    Abstract: A composite type thin-film magnetic head is provided, which comprises: a write head element; a pair of terminal pads for the write head element; a pair of lead conductors for the write head element, electrically connecting the write head element to the pair of terminal pads for the write head element; a read head element; a pair of terminal pads for the read head element; and a pair of lead conductors for the read head element, electrically connecting the read head element to the pair of terminal pads for the read head element. The pair of lead conductors for the write head element and the pair of lead conductors for the read head element are formed into patterns that have no overlapped portions with each other through only an insulating layer.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: April 15, 2008
    Assignee: TDK Corporation
    Inventors: Hiroshi Kiyono, Yosuke Antoku, Tsuyoshi Umehara, Yoshikazu Sawada
  • Publication number: 20050219751
    Abstract: A composite type thin-film magnetic head is provided, which comprises: a write head element; a pair of terminal pads for the write head element; a pair of lead conductors for the write head element, electrically connecting the write head element to the pair of terminal pads for the write head element; a read head element; a pair of terminal pads for the read head element; and a pair of lead conductors for the read head element, electrically connecting the read head element to the pair of terminal pads for the read head element. The pair of lead conductors for the write head element and the pair of lead conductors for the read head element are formed into patterns that have no overlapped portions with each other through only an insulating layer.
    Type: Application
    Filed: March 15, 2005
    Publication date: October 6, 2005
    Applicant: TDK Corporation
    Inventors: Hiroshi Kiyono, Yosuke Antoku, Tsuyoshi Umehara, Yoshikazu Sawada
  • Patent number: 6144765
    Abstract: Disclosed is a technique for setting a body frame for a pattern and collectively deleting an area located outside the body frame. Consecutive codes can be assigned to scanned patterns.
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: November 7, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Tamura, Ayako Fujii, Yoshiko Kobari, Mamoru Nagano, Kiyoshi Watanabe, Hidehiko Morinaga, Shigeki Koyama, Yoshikazu Sawada
  • Patent number: 6057471
    Abstract: An ammoxidation method in a fluidized-bed reactor, in which, when a starting material to be ammoxidized is ammoxidized by means of vapor-phase catalytic fluidized-bed reaction, the reaction is carried out in a fluidized-bed reactor to which an oxygen-containing gas is fed through feed openings provided at the bottom thereof, and a starting material to be ammoxidized is fed through feed openings provided above the feed openings for the oxygen-containing gas, the distance between the feed openings for the oxygen-containing gas and those for the starting material being from 30 to 250% of the height of a fluidized solid matter in a static state so as to form such a fluidized bed that the density of the fluidized solid matter at the feed openings for the starting material to be ammoxidized is in the range of 50 to 300 kg/m.sup.3 and that the gas velocity is 1 m/s or lower.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: May 2, 2000
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Toshio Nakamura, Hiroshi Murata, Katsumasa Nishijima, Masanori Yamaguchi, Yoshikazu Sawada
  • Patent number: 5671346
    Abstract: A figure pattern is processed by modifying a point array that forms the figure pattern. The modification may include moving the points of the array, inserting points into the array, deleting points of the array, and changing the attributes of the points or the point array. According to one arrangement, a sample point of an array forming the outline of a figure pattern is designated for deletion and a figure pattern corresponding to the sample point array is generated on the basis of an attribute of sample points adjacent to the sample point designated for deletion.
    Type: Grant
    Filed: August 2, 1991
    Date of Patent: September 23, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Tamura, Ayako Fujii, Yoshiko Kobari, Mamoru Nagano, Kiyoshi Watanabe, Hidehiko Morinaga, Shigeki Koyama, Yoshikazu Sawada
  • Patent number: 5596689
    Abstract: A change in magnification of a figure pattern within a predetermined area is performed by designating a desired rectangular frame or one point on a screen, A plurality of menus associated with figure processes are performed by interruption,
    Type: Grant
    Filed: August 2, 1991
    Date of Patent: January 21, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Tamura, Ayako Fujii, Yoshiko Kobari, Mamoru Nagano, Kiyoshi Watanabe, Hidehiko Morinaga, Shigeki Koyama, Yoshikazu Sawada