Patents by Inventor Akihiro Harada

Akihiro Harada 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: 20180218813
    Abstract: A soft magnetic alloy comprising a main component having a compositional formula of ((Fe(1?(?+?))X1?X2?)(1?(a+b+c))MaBbCrc)1?dCd, and a sub component including P, S and Ti, wherein X1 is selected from the group Co and Ni, X2 is selected from the group Al, Mn, Ag, Zn, Sn, As, Sb, Bi and rare earth elements, “M” is selected from the group Nb, Hf, Zr, Ta, Mo, W and V, 0.030?a?0.14, 0.005?b?0.20, 0<c?0.040, 0?d?0.040, ??0, ??0, and 0??+??0.50 are satisfied, when soft magnetic alloy is 100 wt %, P is 0.001 to 0.050 wt %, S is 0.001 to 0.050 wt %, and Ti is 0.001 to 0.080 wt %, and when a value obtained by dividing P by S is P/S, then P/S satisfies 0.10?P/S?10.
    Type: Application
    Filed: January 26, 2018
    Publication date: August 2, 2018
    Applicant: TDK CORPORATION
    Inventors: Akihiro HARADA, Hiroyuki MATSUMOTO, Kenji HORINO, Kazuhiro YOSHIDOME, Akito HASEGAWA, Hajime AMANO, Kensuke ARA, Seigo TOKORO
  • Publication number: 20180122540
    Abstract: A soft magnetic alloy including a composition having a formula of ((Fe(1-(?+?))X1?X2?)(1-(a+b+c+d+e))MaBbPcCrdCue)1-fCf. X1 is one or more elements selected from a group of Co and Ni. X2 is one or more elements selected from a group of W, Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O, and rare earth elements. M is one or more elements selected from a group of Nb, Hf, Zr, Ta, Ti, Mo, and V. 0.020?a?0.060, 0.020?b?0.060, 0?c?0.030, 0?d?0.050, 0?e?0.030, 0<f?0.040, ??0, ??0, and 0??+??0.50 are satisfied.
    Type: Application
    Filed: October 26, 2017
    Publication date: May 3, 2018
    Applicant: TDK CORPORATION
    Inventors: Hiroyuki MATSUMOTO, Kenji HORINO, Kazuhiro YOSHIDOME, Akihiro HARADA, Akito HASEGAWA, Hajime AMANO, Kensuke ARA, Masahito KOEDA, Seigo TOKORO
  • Publication number: 20180122543
    Abstract: A soft magnetic alloy including a composition having a formula of ((Fe(1?(?+?))X1?X2?)(1?(a+b+d+e))MaBbCrdCue)1?fCf. X1 is one or more elements selected from a group of Co and Ni. X2 is one or more elements selected from a group of W, Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O, and rare earth elements. M is one or more elements selected from a group of Nb, Hf, Zr, Ta, Ti, Mo, and V. 0.030?a?0.14, 0.028?b?0.15, 0.005?d?0.020, 0<e?0.030, 0?f?0.040, ??0, ??0, and 0??+??0.50 are satisfied.
    Type: Application
    Filed: October 26, 2017
    Publication date: May 3, 2018
    Applicant: TDK CORPORATION
    Inventors: Akihiro HARADA, Hiroyuki MATSUMOTO, Kenji HORINO, Kazuhiro YOSHIDOME, Akito HASEGAWA, Hajime AMANO, Kensuke ARA, Masahito KOEDA, Seigo TOKORO
  • Publication number: 20180122542
    Abstract: A soft magnetic alloy including a composition having a formula of ((Fe(1-(?+?))X1?X2?)(1-(a+b+c+d+e))MaBbPcCrdCue)1-fCf. X1 is one or more elements selected from a group of Co and Ni. X2 is one or more elements selected from a group of W, Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O, and rare earth elements. M is one or more elements selected from a group of Nb, Hf, Zr, Ta, Ti, Mo, and V. 0.030?a?0.14, 0.028?b?0.20, 0<c?0.014, 0<d?0.040, 0?e?0.030, 0?f?0.040, ??0, ??0, and 0??+??0.50 are satisfied.
    Type: Application
    Filed: October 26, 2017
    Publication date: May 3, 2018
    Applicant: TDK CORPORATION
    Inventors: Hiroyuki MATSUMOTO, Kenji HORINO, Kazuhiro YOSHIDOME, Akihiro HARADA, Akito HASEGAWA, Hajime AMANO, Kensuke ARA, Masahito KOEDA, Seigo TOKORO
  • Publication number: 20170184206
    Abstract: A fluid controller that reduces an increase in cost by additional components or additional processes for setting means, and solves the problem that a set value of an upward movable amount of a stem changes is provided. An upper surface of an outer peripheral edge portion of a diaphragm holder 7 and a lower surface of an inner peripheral edge portion of a holder adapter 15 are formed so as to oppose to each other with a first gap A interposed therebetween. By setting the first gap A to a predetermined value, an upward movable amount of the diaphragm holder 7 is set.
    Type: Application
    Filed: February 5, 2016
    Publication date: June 29, 2017
    Inventors: Ichiro Tokuda, Akihiro Harada, Hidenori Kiso, Tomohiro Nakata, Tsutomu Shinohara, Michio Yamaji
  • Patent number: 9556980
    Abstract: A retainer includes an annular gasket retaining portion for retaining a gasket therein and an annular coupling member retaining portion which has an inner diameter greater than that of the gasket retaining portion and retains one coupling member. At an inner circumference of the gasket retaining portion and an inner circumference of the coupling member retaining portion are formed annular grooves, respectively, for holding therein elastic rings, respectively.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: January 31, 2017
    Assignee: FUJIKIN INCORPORATED
    Inventors: Tomohiro Nakata, Akihiro Harada, Michio Yamaji
  • Patent number: 9424968
    Abstract: A magnetic material for antennas including: an M-type hexagonal ferrite represented by the following general formula (1) as a main phase, MA.Fe12-x.MBx.O19 (wherein MA is at least one kind selected from the group consisting of Sr and Ba, MB is MC or MD, MC is at least one kind selected from the group consisting of Al, Cr, Sc and In, MD is an equivalent mixture of at least one kind selected from the group consisting of Ti, Sn and Zr and at least one kind selected from the group consisting of Ni, Zn, Mn, Mg, Cu and Co, X is a number from 1 to 5), and an average crystal particle diameter is equal to or greater than 5 ?m.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: August 23, 2016
    Assignee: TDK CORPORATION
    Inventors: Tomokazu Ishikura, Michihiro Muramoto, Akihiro Harada, Katsumi Kawasaki, Tomofumi Kuroda
  • Publication number: 20150252923
    Abstract: An object of the present invention is to provide a fluid coupling, in which a coupling member is readily retained by a retainer and the retainer is readily attached to or detached from the coupling member, and a retainer for such a fluid coupling. A retainer includes an annular gasket retaining portion for retaining a gasket therein and an annular coupling member retaining portion which has an inner diameter greater than that of the gasket retaining portion and retains one coupling member. At an inner circumference of the gasket retaining portion and an inner circumference of the coupling member retaining portion are formed annular grooves, respectively, for holding therein elastic rings, respectively.
    Type: Application
    Filed: May 21, 2015
    Publication date: September 10, 2015
    Inventors: Tomohiro Nakata, Akihiro Harada, Michio Yamaji
  • Patent number: 9068679
    Abstract: Providing a fluid coupling, in which a coupling member is readily retained by a retainer and the retainer can be readily attached to or detached from the coupling member, and a retainer for such a fluid coupling. A retainer includes an annular gasket retaining portion for retaining a gasket therein and an annular coupling member retaining portion which has an inner diameter greater than that of the gasket retaining portion and retains one coupling member. At an inner circumference of the gasket retaining portion and an inner circumference of the coupling member retaining portion are formed annular grooves respectively, for holding therein elastic rings respectively.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: June 30, 2015
    Assignee: FUJIKIN INCORPORATED
    Inventors: Tomohiro Nakata, Akihiro Harada, Michio Yamaji
  • Patent number: 8459224
    Abstract: An intake manifold is located on a downstream side of a throttle valve in an intake passage. A switching valve is placed on an upstream side of a connection between a communication conduit and an outlet of a lower portion of a surge tank of the intake manifold and is adapted to open or close the communication conduit. A control device controls the switching valve to open or close the switching valve. The control device closes the switching valve when an operational state of an engine is in one of idling time, accelerating driving time and high speed driving time of a vehicle, and the control device opens the switching valve when the operational state of the internal combustion engine is in decelerating driving time of the vehicle.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: June 11, 2013
    Assignee: Denso Corporation
    Inventors: Akihiro Harada, Masao Ino, Yasutoshi Kameda
  • Publication number: 20120229354
    Abstract: A magnetic material for antennas including: an M-type hexagonal ferrite represented by the following general formula (1) as a main phase, MA.Fe12-x.MBx.O19 (wherein MA is at least one kind selected from the group consisting of Sr and Ba, MB is MC or MD, MC is at least one kind selected from the group consisting of Al, Cr, Sc and In, MD is an equivalent mixture of at least one kind selected from the group consisting of Ti, Sn and Zr and at least one kind selected from the group consisting of Ni, Zn, Mn, Mg, Cu and Co, X is a number from 1 to 5), and an average crystal particle diameter is equal to or greater than 5 ?m.
    Type: Application
    Filed: January 17, 2012
    Publication date: September 13, 2012
    Applicant: TDK CORPORATION
    Inventors: Tomokazu ISHIKURA, Michihiro MURAMOTO, Akihiro HARADA, Katsumi KAWASAKI, Tomofumi KURODA
  • Patent number: 8252124
    Abstract: The present invention provides a powder magnetic core low in the loss and high in the saturation magnetic flux density and a method for manufacturing the same. More specifically, the present invention provides a powder magnetic core that comprises a soft magnetic metal powder having an average particle size (D50) of 0.5 to 5 ?m, a half width of diffraction peak in a <110> direction of ?-Fe as measured by X-ray powder diffraction of 0.2 to 5.0°, and an Fe content of 97.0% by mass or more, the core having an oxygen content of 2.0% by mass or more.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: August 28, 2012
    Assignee: TDK Corporation
    Inventors: Masahito Koeda, Tomofumi Kuroda, Tomokazu Ishikura, Akihiro Harada, Hiroyuki Ono, Osamu Kido, Satoko Ueda
  • Publication number: 20110232598
    Abstract: An intake manifold is located on a downstream side of a throttle valve in an intake passage. A switching valve is placed on an upstream side of a connection between a communication conduit and an outlet of a lower portion of a surge tank of the intake manifold and is adapted to open or close the communication conduit. A control device controls the switching valve to open or close the switching valve. The control device closes the switching valve when an operational state of an engine is in one of idling time, accelerating driving time and high speed driving time of a vehicle, and the control device opens the switching valve when the operational state of the internal combustion engine is in decelerating driving time of the vehicle.
    Type: Application
    Filed: March 3, 2011
    Publication date: September 29, 2011
    Applicant: DENSO CORPORATION
    Inventors: Akihiro HARADA, Masao Ino, Yasutoshi Kameda
  • Publication number: 20110227679
    Abstract: The present invention provides a powder magnetic core low in the loss and high in the saturation magnetic flux density and a method for manufacturing the same. More specifically, the present invention provides a powder magnetic core that comprises a soft magnetic metal powder having an average particle size (D50) of 0.5 to 5 ?m, a half width of diffraction peak in a <110> direction of ?-Fe as measured by X-ray powder diffraction of 0.2 to 5.0°, and an Fe content of 97.0% by mass or more, the core having an oxygen content of 2.0% by mass or more.
    Type: Application
    Filed: March 11, 2011
    Publication date: September 22, 2011
    Applicant: TDK CORPORATION
    Inventors: Masahito KOEDA, Tomofumi KURODA, Tomokazu ISHIKURA, Akihiro HARADA, Hiroyuki ONO, Osamu KIDO, Satoko UEDA
  • Publication number: 20110031745
    Abstract: An object of the present invention is to provide a fluid coupling, even if it has a large diameter, in which a coupling member can be readily retained by a retainer and the retainer can be readily attached to or detached from the coupling member, and a retainer for such a fluid coupling. A retainer 5 includes an annular gasket retaining portion 21 for retaining a gasket 4 therein and an annular coupling member retaining portion 22 which has an inner diameter greater than that of the gasket retaining portion 21 and retains one coupling member 2. At an inner circumference of the gasket retaining portion 21 and an inner circumference of the coupling member retaining portion 22 are formed annular grooves 23 and 24, respectively, for holding therein elastic rings 25 and 26, respectively.
    Type: Application
    Filed: April 21, 2009
    Publication date: February 10, 2011
    Applicant: FUJIKIN INCORPORATED
    Inventors: Tomohiro Nakata, Akihiro Harada, Michio Yamaji
  • Publication number: 20100320408
    Abstract: The present invention provides a fluid controller which enables fine adjustments of low flow rates and enables a user to set desired low flow rates.
    Type: Application
    Filed: January 30, 2008
    Publication date: December 23, 2010
    Applicant: FUJIKIN INCORPORATED
    Inventors: Tomohiro Nakata, Michio Yamaji, Tsutomu Shinohara, Akihiro Harada
  • Publication number: 20100006787
    Abstract: To provide a fluid controller with a joint, which has a general versatility and can reduce a storage cost and a storage space. Between a joint 12 and a body 23 of a fluid controller 13, a passage member 14 for communicating both intervenes. The joint 12 is coupled to the passage member 14 by welding. The passage member 14 is coupled with the body 23 of the fluid controller 13 so as to be attachable and detachable by at least one screw member 26.
    Type: Application
    Filed: August 9, 2006
    Publication date: January 14, 2010
    Inventors: Tomohiro Nakata, Michio Yamaji, Akihiro Harada
  • Patent number: 6959227
    Abstract: A lens layout setting apparatus for lens grinding processing apparatus having a display screen of a display device for various settings for processing data of eyeglass lens shape for an eyeglass frame, and data of lens grinding process to grind the lens based on the data of lens shape for the frame, further including a control means to add, delete or rearrange a setting condition. The display device displays data of eyeglass lens shape for an eyeglass frame, and of eyeglass lens grinding process required for grinding the lens based on the data, and further displays tabs arranged to display a layout operating screen to set a layout of the data of lens shape for the frame, a state of measuring an edge thickness of the lens, simulation of the shape of a V-shaped protrusion formed on an edge of the lens, and a grinding process screen.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: October 25, 2005
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Hiroyuki Okada, Mitsuo Ishii, Jun Onose, Takahiro Watanabe, Toshihiro Iwai, Akihiro Harada, Yasuko Tsuruga
  • Publication number: 20040153198
    Abstract: A lens layout setting apparatus for lens grinding processing apparatus having a display screen of a display device for various settings for processing data of eyeglass lens shape for an eyeglass frame, and data of lens grinding process to grind the lens based on the data of lens shape for the frame, further including a control means to add, delete or rearrange a setting condition. The display device displays data of eyeglass lens shape for an eyeglass frame, and of eyeglass lens grinding process required for grinding the lens based on the data, and further displays tabs arranged to display a layout operating screen to set a layout of the data of lens shape for the frame, a state of measuring an edge thickness of the lens, simulation of the shape of a V-shaped protrusion formed on an edge of the lens, and a grinding process screen.
    Type: Application
    Filed: January 21, 2004
    Publication date: August 5, 2004
    Applicant: Kabushiki Kaisha Topcon
    Inventors: Hiroyuki Okada, Mitsuo Ishii, Jun Onose, Takahiro Watanabe, Toshihiro Iwai, Akihiro Harada, Yasuko Tsuruga
  • Patent number: D609589
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: February 9, 2010
    Assignee: Fujikin Incorporated
    Inventors: Tomohiro Nakata, Michio Yamaji, Tsutomu Shinohara, Akihiro Harada, Masaya Aishima