Patents by Inventor Kazuhiko Oyama

Kazuhiko Oyama 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: 10475569
    Abstract: One object is to compensate the reduction of the Q value due to reduction of core sectional area of a coil of an inductor, and the reduction of positional accuracy and adhesive strength of components mounted on a printed circuit board due to reduction of area of external electrodes, both caused by downsizing of component sizes. An inductor is provided which includes: a coil formed in an insulator and having one end and the other end thereof formed in a direction away from a mounting surface; and lead-out portions connected to the coil at positions more distant from the mounting surface than a portion of the coil closest to the mounting surface.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: November 12, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Masuo Yatabe, Kozue Imaizumi, Noriyuki Mabuchi, Kazuhiko Oyama
  • Patent number: 10217557
    Abstract: One object is to provide a laminated inductor having a reduced thickness without reduction in the magnetic characteristic and the insulation quality. The laminated inductor includes a first magnetic layer, an internal conductor, second magnetic layers, third magnetic layers, and a pair of external electrodes. The first magnetic layer includes three or more magnetic alloy particles arranged in the thickness direction and an oxide film binding the magnetic alloy particles together and containing Cr. The three or more magnetic alloy particles have an average particle diameter of 4 ?m or smaller. The internal conductor includes a plurality of conductive patterned portions electrically connected to each other via the first magnetic layer. The second magnetic layers are composed of magnetic alloy particles and disposed around the conductive patterned portions. The third magnetic layers are composed of magnetic alloy particles and disposed so as to be opposed to each other in thickness direction.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: February 26, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Takayuki Arai, Ryuichi Kondou, Akiko Yamaguchi, Shinsuke Takeoka, Kazuhiko Oyama, Kenji Otake
  • Publication number: 20180358164
    Abstract: One object is to provide a laminated inductor having a reduced thickness without reduction in the magnetic characteristic and the insulation quality. The laminated inductor includes a first magnetic layer, an internal conductor, second magnetic layers, third magnetic layers, and a pair of external electrodes. The first magnetic layer includes three or more magnetic alloy particles arranged in the thickness direction and an oxide film binding the magnetic alloy particles together and containing Cr. The three or more magnetic alloy particles have an average particle diameter of 4 ?m or smaller. The internal conductor includes a plurality of conductive patterned portions electrically connected to each other via the first magnetic layer. The second magnetic layers are composed of magnetic alloy particles and disposed around the conductive patterned portions. The third magnetic layers are composed of magnetic alloy particles and disposed so as to be opposed to each other in thickness direction.
    Type: Application
    Filed: August 21, 2018
    Publication date: December 13, 2018
    Inventors: Takayuki ARAI, Ryuichi KONDOU, Akiko YAMAGUCHI, Shinsuke TAKEOKA, Kazuhiko OYAMA, Kenji OTAKE
  • Patent number: 10096418
    Abstract: One object is to provide a laminated inductor having a reduced thickness without reduction in the magnetic characteristic and the insulation quality. The laminated inductor includes a first magnetic layer, an internal conductor, second magnetic layers, third magnetic layers, and a pair of external electrodes. The first magnetic layer includes three or more magnetic alloy particles arranged in the thickness direction and an oxide film binding the magnetic alloy particles together and containing Cr. The three or more magnetic alloy particles have an average particle diameter of 4 ?m or smaller. The internal conductor includes a plurality of conductive patterned portions electrically connected to each other via the first magnetic layer. The second magnetic layers are composed of magnetic alloy particles and disposed around the conductive patterned portions. The third magnetic layers are composed of magnetic alloy particles and disposed so as to be opposed to each other in thickness direction.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: October 9, 2018
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Takayuki Arai, Ryuichi Kondou, Akiko Yamaguchi, Shinsuke Takeoka, Kazuhiko Oyama, Kenji Otake
  • Publication number: 20180114627
    Abstract: One object is to provide a laminated inductor having a reduced thickness without reduction in the magnetic characteristic and the insulation quality. The laminated inductor includes a first magnetic layer, an internal conductor, second magnetic layers, third magnetic layers, and a pair of external electrodes. The first magnetic layer includes three or more magnetic alloy particles arranged in the thickness direction and an oxide film binding the magnetic alloy particles together and containing Cr. The three or more magnetic alloy particles have an average particle diameter of 4 ?m or smaller. The internal conductor includes a plurality of conductive patterned portions electrically connected to each other via the first magnetic layer. The second magnetic layers are composed of magnetic alloy particles and disposed around the conductive patterned portions. The third magnetic layers are composed of magnetic alloy particles and disposed so as to be opposed to each other in thickness direction.
    Type: Application
    Filed: December 21, 2017
    Publication date: April 26, 2018
    Inventors: Takayuki ARAI, Ryuichi KONDOU, Akiko YAMAGUCHI, Shinsuke TAKEOKA, Kazuhiko OYAMA, Kenji OTAKE
  • Patent number: 9892843
    Abstract: One object is to provide a laminated inductor having a reduced thickness without reduction in the magnetic characteristic and the insulation quality. The laminated inductor includes a first magnetic layer, an internal conductor, second magnetic layers, third magnetic layers, and a pair of external electrodes. The first magnetic layer has a thickness of 4 to 19 ?m, and includes three or more magnetic alloy particles arranged in the thickness direction and an oxide film binding the magnetic alloy particles together and containing Cr. The internal conductor includes a plurality of conductive patterned portions electrically connected to each other via the first magnetic layer. The second magnetic layers are composed of magnetic alloy particles and disposed around the conductive patterned portions. The third magnetic layers are composed of magnetic alloy particles and disposed so as to be opposed to each other in thickness direction.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: February 13, 2018
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Takayuki Arai, Ryuichi Kondou, Akiko Yamaguchi, Shinsuke Takeoka, Kazuhiko Oyama, Kenji Otake
  • Patent number: 9675075
    Abstract: Disclosed is a pest control composition comprising at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof and at least one other pest control agent as active ingredients. The combined use of the two ingredients can provide a better insecticidal effect.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: June 13, 2017
    Assignee: BASF SE
    Inventors: Ryo Horikoshi, Kazuhiko Oyama, Mitsuyuki Yabuzaki
  • Publication number: 20170140864
    Abstract: One object is to provide a laminated inductor having a reduced thickness without reduction in the magnetic characteristic and the insulation quality. The laminated inductor includes a first magnetic layer, an internal conductor, second magnetic layers, third magnetic layers, and a pair of external electrodes. The first magnetic layer has a thickness of 4 to 19 ?m, and includes three or more magnetic alloy particles arranged in the thickness direction and an oxide film binding the magnetic alloy particles together and containing Cr. The internal conductor includes a plurality of conductive patterned portions electrically connected to each other via the first magnetic layer. The second magnetic layers are composed of magnetic alloy particles and disposed around the conductive patterned portions. The third magnetic layers are composed of magnetic alloy particles and disposed so as to be opposed to each other in thickness direction.
    Type: Application
    Filed: September 26, 2016
    Publication date: May 18, 2017
    Inventors: Takayuki ARAI, Ryuichi KONDOU, Akiko YAMAGUCHI, Shinsuke TAKEOKA, Kazuhiko OYAMA, Kenji OTAKE
  • Publication number: 20170018351
    Abstract: One object is to compensate the reduction of the Q value due to reduction of core sectional area of a coil of an inductor, and the reduction of positional accuracy and adhesive strength of components mounted on a printed circuit board due to reduction of area of external electrodes, both caused by downsizing of component sizes. An inductor is provided which includes: a coil formed in an insulator and having one end and the other end thereof formed in a direction away from a mounting surface; and lead-out portions connected to the coil at positions more distant from the mounting surface than a portion of the coil closest to the mounting surface.
    Type: Application
    Filed: July 13, 2016
    Publication date: January 19, 2017
    Inventors: Masuo YATABE, Kozue IMAIZUMI, Noriyuki MABUCHI, Kazuhiko OYAMA
  • Patent number: 9434739
    Abstract: Disclosed are compounds that are utilizable as systemic insecticides and possess excellent systemic properties. Compounds represented by formula (1) have excellent systemic insecticidal activity. Accordingly, a composition comprising as an active ingredient the compound of formula (1) or salt thereof is useful as a systemic insecticide.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: September 6, 2016
    Assignee: MEIJI SEIKA PHARMA CO., LTD.
    Inventors: Ryo Horikoshi, Mitsuyuki Yabuzaki, Shinji Sakurai, Kazuhiko Oyama, Masaaki Mitomi
  • Patent number: 9315785
    Abstract: An isolated novel polynucleotide comprising a nucleotide sequence encoding at least one polypeptide involved in biosynthesis of pyripyropene A, a recombinant vector comprising the polynucleotide and a transformant comprising the polynucleotide are disclosed. By the present invention, a pyripyropene A biosynthetic gene useful for production of a novel pyripyropene analog, improvement of productivity of a pyripyropene A-producing bacterium, production of an insecticidal agent for microorganisms, creation of a plant resistant to insect pests or the like are provided.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: April 19, 2016
    Assignee: MEIJI SEIKA PHARMA CO., LTD.
    Inventors: Hiroyuki Anzai, Kentaro Yamamoto, Mariko Tsuchida, Kazuhiko Oyama, Masaaki Mitomi
  • Patent number: 9190202
    Abstract: A laminated inductor includes a component body that provides a mounting surface on one of its faces, and at least a pair of external electrodes are formed on the mounting surface, wherein the component body has a laminate constituted by multiple insulator layers, a spiral coil conductor formed in the laminate, and leader parts that electrically connect the coil conductor and external electrodes; the coil conductor comprises conductor patterns formed in the insulator layers and via hole conductors that penetrate through the insulator layers and electrically connect the multiple conductor patterns, and also has a coil axis running roughly in parallel with the mounting surface and a turn unit having one or more sides running roughly in parallel with the mounting surface; and the via hole conductors are formed only on the side farthest away from the mounting surface among the one or more sides.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: November 17, 2015
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Koji Ishii, Akihisa Matsuda, Yo Fujitsuna, Kazuhiko Oyama, Yasuyuki Taki
  • Patent number: 9169504
    Abstract: There is provided a method for culturing a microorganism in which a particular polynucleotide or a recombinant vector comprising it/them is introduced with an intermediate compound necessary for biosynthesis of pyripyropene A. The method of the present invention allows for the production of pyripyropene.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: October 27, 2015
    Assignee: MEIJI SEIKA PHARMA CO., LTD.
    Inventors: Hiroyuki Anzai, Kentaro Yamamoto, Kazuhiko Oyama, Mariko Tsuchida, Kimihiko Goto, Masaaki Mitomi
  • Patent number: 9129737
    Abstract: A laminated inductor includes: a laminate having an insulating part constituted by non-magnetic layers, as well as a coil part constituted by conductors positioned between the non-magnetic layers; and external electrodes that are electrically connected to the ends of the coil part and positioned on the exterior surfaces of the laminate; wherein the external electrodes each have a first electrode layer whose primary constituent is Ag, as well as a second electrode layer whose primary constituent is Cu and which is positioned on the outer side of the first electrode layer and has a thickness of 4 ?m or more, and the total thickness of the first electrode layer and second electrode layer is 5 ?m or more and preferably 10 ?m or less.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: September 8, 2015
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Ichirou Yokoyama, Taisuke Suzuki, Masuo Yatabe, Tomoyuki Oyoshi, Noriyuki Mabuchi, Kazuhiko Oyama
  • Patent number: 9007160
    Abstract: A laminated inductor includes a laminate constituted by multiple insulator layers, and a coil conductor formed in a spiral shape inside the laminate; wherein the coil conductor has conductor patterns formed on the insulator layers, and via hole conductors that penetrate through the insulator layers and electrically connect the multiple conductor patterns; wherein conductor patterns formed on some insulator layers each represent a C-shaped pattern that includes the four corners and has an open part on one side, of a roughly rectangular shape, while a conductor pattern formed on other insulator layer(s) represents a line-shaped pattern corresponding to the open part of one side of the aforementioned C-shaped pattern of the roughly rectangular shape; and wherein an insulator layer on which the C-shaped pattern is formed, and insulator layer(s) on which the line-shaped pattern is formed, adjoin each other at least in one part of the laminate.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: April 14, 2015
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Ichirou Yokoyama, Taisuke Suzuki, Yasuyuki Taki, Kazuhiko Oyama
  • Patent number: 8947189
    Abstract: A group of magnetic sheets are stacked and connected via through-holes, on each of which magnetic sheets a circling pattern having connection parts at its corners and ends is formed to form a spiral coil pattern. Leader patterns each have a leader part formed at a position not overlapping with the circling parts of the coil pattern and connected to an external terminal electrode, as well as two connection parts that continue to the leader part and are formed at positions corresponding to the connection parts of the circling patterns, together with a cutout formed between the two connection parts. Magnetic sheets with the leader patterns are provided at the top and bottom of the laminate forming the coil pattern. The multilayer chip inductor can suppress decrease in core area caused by displacement due to the stacking.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: February 3, 2015
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Yoshikazu Maruyama, Masataka Kohara, Kazuhiko Oyama
  • Publication number: 20140371178
    Abstract: Disclosed is a pest control composition comprising at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof and at least one other pest control agent as active ingredients. The combined use of the two ingredients can provide a better insecticidal effect.
    Type: Application
    Filed: August 28, 2014
    Publication date: December 18, 2014
    Inventors: Ryo HORIKOSHI, Kazuhiko OYAMA, Mitsuyuki YABUZAKI
  • Patent number: 8859462
    Abstract: Disclosed is a pest control composition comprising at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof and at least one other pest control agent as active ingredients. The combined use of the two ingredients can provide a better insecticidal effect.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: October 14, 2014
    Assignee: Meiji Seika Pharma Co., Ltd.
    Inventors: Ryo Horikoshi, Kazuhiko Oyama, Mitsuyuki Yabuzaki
  • Publication number: 20140292470
    Abstract: A laminated inductor includes: a laminate having an insulating part constituted by non-magnetic layers, as well as a coil part constituted by conductors positioned between the non-magnetic layers; and external electrodes that are electrically connected to the ends of the coil part and positioned on the exterior surfaces of the laminate; wherein the external electrodes each have a first electrode layer whose primary constituent is Ag, as well as a second electrode layer whose primary constituent is Cu and which is positioned on the outer side of the first electrode layer and has a thickness of 4 ?m or more, and the total thickness of the first electrode layer and second electrode layer is 5 ?m or more and preferably 10 ?m or less.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Ichirou YOKOYAMA, Taisuke SUZUKI, Masuo YATABE, Tomoyuki OYOSHI, Noriyuki MABUCHI, Kazuhiko OYAMA
  • Patent number: RE47950
    Abstract: A laminated inductor includes a component body that provides a mounting surface on one of its faces, and at least a pair of external electrodes are formed on the mounting surface, wherein the component body has a laminate constituted by multiple insulator layers, a spiral coil conductor formed in the laminate, and leader parts that electrically connect the coil conductor and external electrodes; the coil conductor comprises conductor patterns formed in the insulator layers and via hole conductors that penetrate through the insulator layers and electrically connect the multiple conductor patterns, and also has a coil axis running roughly in parallel with the mounting surface and a turn unit having one or more sides running roughly in parallel with the mounting surface; and the via hole conductors are formed only on the side farthest away from the mounting surface among the one or more sides.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: April 14, 2020
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Koji Ishii, Akihisa Matsuda, Yo Fujitsuna, Kazuhiko Oyama, Yasuyuki Taki