Patents by Inventor Koji Seo

Koji Seo 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: 11448115
    Abstract: Two oil coolers (30, 32) are disposed so as to face each other in a front half of the inside of a heat exchanger chamber (26) defined in an upper revolving body (5), one oil cooler (31) is disposed in a rear half, and a space (E) formed between the oil coolers is used as work and passage spaces. Outside air as cooling air is allowed to pass through the respective oil coolers (30 to 32) by cooling fans (35), and cooling air that has passed through each of the two oil coolers (30, 32) disposed so as to face each other is made to mutually collide, and is discharged to the outside through a side outlet (38) of a front wall (26a) and a first upper outlet (39) of a ceiling (26e) of the heat exchanger chamber (26). Cooling air that has passed through the other one oil cooler (31) is made to collide with a left side wall (26c), and is discharged to the outside through a second upper outlet (40) of the ceiling (26e).
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: September 20, 2022
    Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Koji Seo, Nobuhiro Ishii, Kei Sato
  • Publication number: 20220286105
    Abstract: Aspects of this disclosure relate to an acoustic wave device with transverse mode suppression. The acoustic wave device can include a piezoelectric layer, an interdigital transducer electrode, a temperature compensation layer, and a multi-layer mass loading strip. The mass loading strip has a density that is higher than a density of the temperature compensation layer. The mass loading strip can overlap edge portions of fingers of the interdigital transducer electrode. The mass loading strip can include a first layer for adhesion and a second layer for mass loading. The mass loading strip can suppress a transverse mode.
    Type: Application
    Filed: May 25, 2022
    Publication date: September 8, 2022
    Inventors: Rei Goto, Koji Seo, Keiichi Maki
  • Patent number: 11368137
    Abstract: Aspects of this disclosure relate to an acoustic wave device with transverse mode suppression. The acoustic wave device can include a piezoelectric layer, an interdigital transducer electrode, a temperature compensation layer, and a multi-layer mass loading strip. The mass loading strip has a density that is higher than a density of the temperature compensation layer. The mass loading strip can overlap edge portions of fingers of the interdigital transducer electrode. The mass loading strip can include a first layer for adhesion and a second layer for mass loading. The mass loading strip can suppress a transverse mode.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: June 21, 2022
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Rei Goto, Koji Seo, Keiichi Maki
  • Publication number: 20210003062
    Abstract: Two oil coolers (30, 32) are disposed so as to face each other in a front half of the inside of a heat exchanger chamber (26) defined in an upper revolving body (5), one oil cooler (31) is disposed in a rear half, and a space (E) formed between the oil coolers is used as work and passage spaces. Outside air as cooling air is allowed to pass through the respective oil coolers (30 to 32) by cooling fans (35), and cooling air that has passed through each of the two oil coolers (30, 32) disposed so as to face each other is made to mutually collide, and is discharged to the outside through a side outlet (38) of a front wall (26a) and a first upper outlet (39) of a ceiling (26e) of the heat exchanger chamber (26). Cooling air that has passed through the other one oil cooler (31) is made to collide with a left side wall (26c), and is discharged to the outside through a second upper outlet (40) of the ceiling (26e).
    Type: Application
    Filed: August 1, 2019
    Publication date: January 7, 2021
    Inventors: Koji SEO, Nobuhiro ISHII, Kei SATO
  • Publication number: 20200212876
    Abstract: Aspects of this disclosure relate to an acoustic wave device with transverse mode suppression. The acoustic wave device can include a piezoelectric layer, an interdigital transducer electrode, a temperature compensation layer, and a multi-layer mass loading strip. The mass loading strip has a density that is higher than a density of the temperature compensation layer. The mass loading strip can overlap edge portions of fingers of the interdigital transducer electrode. The mass loading strip can include a first layer for adhesion and a second layer for mass loading. The mass loading strip can suppress a transverse mode.
    Type: Application
    Filed: December 20, 2019
    Publication date: July 2, 2020
    Inventors: Rei Goto, Koji Seo, Keiichi Maki
  • Publication number: 20160326465
    Abstract: Provided is a method for producing an instrument of collecting detection target. The instrument includes a filter unit and a carrier unit that holds a carrier of collecting a detection target. The method comprises at least: a tool ATP eliminating step of eliminating ATP from tools to be used in the production steps, a mixture ATP eliminating step of eliminating ATP from a carrier prepared by mixing raw materials via using the tools from which ATP is thus eliminated, and a filling step of filling the carrier from which ATP is thus eliminated into a carrier unit.
    Type: Application
    Filed: November 7, 2014
    Publication date: November 10, 2016
    Applicant: HITACHI, LTD.
    Inventors: Yuta NAKATSUKA, Noe MIYASHITA, Shuichi MORI, Koji SEO
  • Patent number: 9476808
    Abstract: An object of the present invention is to provide an object-capturing device which accurately detects objects such as microorganisms captured at a test site. The object-capturing device of the present invention includes a capturing dish holding a carrier, which captures objects (microorganisms), on a first side of the capturing dish. The capturing dish has a through hole extending from the first side to a second side of the capturing dish. The object-capturing device is used in a way such that, after the objects are captured with the carrier directed upward, the carrier is directed downward and reagents for detecting the objects are contacted with the objects captured on the carrier through the through hole.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: October 25, 2016
    Assignee: HITACHI PLANT SERVICES CO., LTD.
    Inventors: Noe Miyashita, Koji Seo, Matsuo Kamitani
  • Publication number: 20140011229
    Abstract: In a microorganism capturing device as a filter separation apparatus, a first contact chamber and a second contact chamber in each of which an object to be treated is contacted with a treatment agent are disposed apart from each other by a hydrophilic filter. The second contact chamber and a filtrate outlet are separated from each other by a hydrophobic filter. The microorganism capturing device is adapted to efficiently contact the object to be treated with the treatment agent, even if the object to be treated enters into the hydrophilic filter.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 9, 2014
    Inventors: Yuta NAKATSUKA, Shuichi MORI, Koji SEO, Noe MIYASHITA
  • Patent number: 8598968
    Abstract: An elastic wave device has a convex portion on the top face of a first dielectric layer over an IDT electrode when the elastic wave device has a structure of a boundary wave device in which a film thickness of a second dielectric layer is not less than 1.6 times as much as a pitch width of the IDT electrode. This convex portion increases an electromechanical coupling coefficient of SH wave that is the major wave. Accordingly, good filter characteristics can be easily achieved.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: December 3, 2013
    Assignee: Panasonic Corporation
    Inventors: Koji Seo, Hiroyuki Nakamura, Rei Goto
  • Publication number: 20110204998
    Abstract: Offers elastic wave device that has convex portion on the top face of first dielectric layer over IDT electrode when elastic wave device has a structure of a boundary wave device in which a film thickness of second dielectric layer is not less than 1.6 times as much as pitch width p of IDT electrode. This convex portion increases an electromechanical coupling coefficient of SH wave that is the major wave. Accordingly, good filter characteristics can be easily achieved.
    Type: Application
    Filed: November 6, 2009
    Publication date: August 25, 2011
    Inventors: Koji Seo, Hiroyuki Nakamura, Rei Goto
  • Publication number: 20110183408
    Abstract: A reagent cartridge for a microorganism detection apparatus includes a plurality of reagent vessels, a support plate, and side plates, wherein the reagent vessels are integrally connected with each other in parallel by the support plate, and a group of the plurality of the reagent vessels is surrounded by the side plates; the reagent cartridge further includes an independent reagent vessel instead of at least one of the plurality of the reagent vessels and separately therefrom; and an engagement portion, wherein the engagement portion engages the independent reagent vessel in the engagement portion so as to be universally attached and detached, and to be in parallel with the plurality of the reagent vessels.
    Type: Application
    Filed: January 26, 2011
    Publication date: July 28, 2011
    Inventors: Noe Miyashita, Koji Seo
  • Publication number: 20110159536
    Abstract: An object of the present invention is to provide an object-capturing device which accurately detects objects such as microorganisms captured at a test site. The object-capturing device of the present invention includes a capturing dish holding a carrier, which captures objects (microorganisms), on a first side of the capturing dish. The capturing dish has a through hole extending from the first side to a second side of the capturing dish. The object-capturing device is used in a way such that, after the objects are captured with the carrier directed upward, the carrier is directed downward and reagents for detecting the objects are contacted with the objects captured on the carrier through the through hole.
    Type: Application
    Filed: December 23, 2010
    Publication date: June 30, 2011
    Inventors: Noe MIYASHITA, Koji Seo, Matsuo Kamitani
  • Patent number: 7747120
    Abstract: A coated optical fiber capable of transmitting high-power light, which is an optical fiber having an outer surface coated with a coating material, is characterized in that the coating material is made of a transparent UV curable resin so as to prevent the coating material from absorbing light leaked outside from the optical fiber to generate heat. Further, a light transmitting method is characterized in that a fiber fuse propagation threshold which is a minimal light output required for fiber fuse propagation is obtained and a transmitted light output is controlled so that the transmitted light output becomes smaller than the fiber fuse propagation threshold.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: June 29, 2010
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Koji Seo, Naoya Nishimura
  • Publication number: 20080317421
    Abstract: A coated optical fiber capable of transmitting high-power light, which is an optical fiber having an outer surface coated with a coating material, is characterized in that the coating material is made of a transparent UV curable resin so as to prevent the coating material from absorbing light leaked outside from the optical fiber to generate heat. Further, a light transmitting method is characterized in that a fiber fuse propagation threshold which is a minimal light output required for fiber fuse propagation is obtained and a transmitted light output is controlled so that the transmitted light output becomes smaller than the fiber fuse propagation threshold.
    Type: Application
    Filed: June 9, 2008
    Publication date: December 25, 2008
    Inventors: Koji SEO, Naoya Nishimura
  • Patent number: 7400808
    Abstract: A coated optical fiber capable of transmitting high-power light, which is an optical fiber having an outer surface coated with a coating material, is characterized in that the coating material is made of a transparent UV curable resin so as to prevent the coating material from absorbing light leaked outside from the optical fiber to generate heat. Further, a light transmitting method is characterized in that a fiber fuse propagation threshold which is a minimal light output required for fiber fuse propagation is obtained and a transmitted light output is controlled so that the transmitted light output becomes smaller than the fiber fuse propagation threshold.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: July 15, 2008
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Koji Seo, Naoya Nishimura
  • Publication number: 20060245708
    Abstract: A coated optical fiber capable of transmitting high-power light, which is an optical fiber having an outer surface coated with a coating material, is characterized in that the coating material is made of a transparent UV curable resin so as to prevent the coating material from absorbing light leaked outside from the optical fiber to generate heat. Further, a light transmitting method is characterized in that a fiber fuse propagation threshold which is a minimal light output required for fiber fuse propagation is obtained and a transmitted light output is controlled so that the transmitted light output becomes smaller than the fiber fuse propagation threshold.
    Type: Application
    Filed: January 13, 2004
    Publication date: November 2, 2006
    Inventors: Koji Seo, Naoya Nishimura
  • Patent number: 7106150
    Abstract: A surface acoustic wave filter with little electromagnetic coupling between wires and improved attenuation characteristics is provided. This surface acoustic wave filter comprises: a package having a concavity in the shape of stairs made by laminating dielectrics, a surface acoustic wave element provided on the bottom face of the concavity, a plurality of wires for connecting between a plurality of electrodes provided on the surface of the surface acoustic wave element and a plurality of electrodes provided on one same plane portion of the stairs of the package in correspondence to a plurality of electrodes, and a dummy wire provided between the wires.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: September 12, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Koji Seo, Tetsuro Shimamura, Toru Sakuragawa, Hiroshi Kushanti, Yuki Satoh
  • Patent number: D657473
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: April 10, 2012
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Noe Miyashita, Koji Seo, Matsuo Kamitani
  • Patent number: D659254
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: May 8, 2012
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Noe Miyashita, Koji Seo, Matsuo Kamitani
  • Patent number: D695397
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: December 10, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Yuta Nakatsuka, Shuichi Mori, Koji Seo, Noe Miyashita