Patents by Inventor Mikio Yoshida

Mikio Yoshida 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: 20230352220
    Abstract: In a sintered rare-earth magnet containing R2T14B main-phase grains (R being one or more element selected from rare-earth elements and T being one or more element selected from iron group elements), intergranular grain boundaries that from between two mutually adjoining main-phase grains and grain boundary triple junctions surrounded by three or more main-phase grains, the main-phase grains, the intergranular grain boundaries and the grain boundary triple junctions all include TiB2 crystals. The sintered rare-earth magnet is a to high-performance magnet of high coercivity and good squareness.
    Type: Application
    Filed: March 28, 2023
    Publication date: November 2, 2023
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hiroshi BABA, Hiroki IIDA, Mikio YOSHIDA, Koichi HIROTA
  • Patent number: 11798716
    Abstract: Provided is a rare earth sintered magnet in which a multi-layer main phase particle having multiple layers including a layer 1 having R2 concentration, represented by at %, higher than that of a center of the particle, a layer 2 which is formed on the outside of the layer 1 and has R2 concentration lower than that of the layer 1, and a layer 3 which is formed on the outside of the layer 2 and has R2 concentration higher than that of the layer 2 is present at least in a portion in the vicinity of a surface of the main phase particle within at least 500 ?m from a surface of the sintered magnet body.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: October 24, 2023
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Tetsuya Ohashi, Hiroki Iida, Koichi Hirota, Hajime Nakamura, Mikio Yoshida, Kazuya Fukui, Michihiro Oida
  • Patent number: 11661944
    Abstract: An electric compressor includes a compression portion, an electric motor, a drive circuit that has a circuit board on which electronic components are mounted, a housing, and a resin member. At least one of the electronic components is held by the resin member with the resin member sandwiched between the at least one of the electronic component and the circuit board. The electronic compressor includes a first metal member that is in contact with the at least one of the electronic components, and thermally connected to the housing, a second metal member that is disposed in the resin member, and a bolt by which the first metal member and the second metal member are fastened with each other.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: May 30, 2023
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Motonobu Funato, Mikio Yoshida, Kenji Hayakawa, Yusuke Kinoshita
  • Patent number: 11611265
    Abstract: An electric compressor includes a compression part, an electric motor, an inverter device, and a housing. The inverter device includes an inverter circuit, a noise reduction unit, and a circuit board. The noise reduction unit includes a common mode choke coil and a smoothing capacitor. The common mode choke coil includes an annular core, a pair of winding wires, and an annular electrical conductor. The electrical conductor is split into a first metal plate and a second metal plate in a circumferential direction. The first metal plate is thermally coupled to the housing. The second metal plate is electrically connected to the first metal plate. An electrical resistance value of the first metal plate is larger than that of the second metal plate.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: March 21, 2023
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Kouki Yamamoto, Mikio Yoshida, Kenji Hayakawa, Takuya Sagawa, Yusuke Kinoshita, Shunsuke Ambo, Junya Kaida
  • Publication number: 20220406498
    Abstract: Provided is an R—Fe—B-based sintered magnet which has a composition comprising R (wherein R represents at least one element selected from rare earth elements, and essentially contains Nd), B, M (wherein M represents at least one element selected from Si, Al, Mn, Ni, Co, Cu, Zn, Ga, Ge, Pd, Ag, Cd, In, Sn, Sb, Pt, Au, Hg, Pb and Bi), X (wherein X represents at least one element selected from Ti, Zr, Hf, Nb, V and Ta) and C, with a remainder comprising Fe, O and unavoidable impurities, and has a main phase comprising R2Fe14B and a grain boundary phase comprising an R—C phase having a higher R concentration and a higher C concentration than those in the main phase, the R—Fe—B-based sintered magnet being characterized in that the area ratio of the R—C phase in a cross section of the magnet is more than 0% and 0.5% or less.
    Type: Application
    Filed: November 5, 2020
    Publication date: December 22, 2022
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Akihiro Yoshinari, Hiroki Iida, Koichi Hirota, Mikio Yoshida
  • Publication number: 20210320566
    Abstract: An electric compressor includes a compression part, an electric motor, an inverter device, and a housing. The inverter device includes an inverter circuit, a noise reduction unit, and a circuit board. The noise reduction unit includes a common mode choke coil and a smoothing capacitor. The common mode choke coil includes an annular core, a pair of winding wires, and an annular electrical conductor. The electrical conductor is split into a first metal plate and a second metal plate in a circumferential direction. The first metal plate is thermally coupled to the housing. The second metal plate is electrically connected to the first metal plate. An electrical resistance value of the first metal plate is larger than that of the second metal plate.
    Type: Application
    Filed: April 6, 2021
    Publication date: October 14, 2021
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Kouki YAMAMOTO, Mikio YOSHIDA, Kenji HAYAKAWA, Takuya SAGAWA, Yusuke KINOSHITA, Shunsuke AMBO, Junya KAIDA
  • Publication number: 20210301803
    Abstract: A vehicle electric compressor includes a compression part, an electric motor, and an inverter device. The inverter device includes a noise reduction unit that includes a common mode choke coil. The common mode choke coil includes a core, a first winding wire, a second winding wire, and an electrical conductor that covers the core. The electrical conductor has a first insulation layer and a second insulation layer. The first insulation layer, the electrical conductor, and the second insulation layer form a laminated body including a loop-shaped portion that covers the core and a joint portion.
    Type: Application
    Filed: March 23, 2021
    Publication date: September 30, 2021
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Shunsuke AMBO, Yoshiki NAGATA, Takashi KAWASHIMA, Hiroshi FUKASAKU, Kaida JUNYA, Takeshi HARASAWA, Kenji HAYAKAWA, Takuya SAGAWA, Fumihiro KAGAWA, Mikio YOSHIDA, Kouki YAMAMOTO
  • Publication number: 20210199117
    Abstract: An electric compressor includes a compression portion, an electric motor, a drive circuit that has a circuit board on which electronic components are mounted, a housing, and a resin member. At least one of the electronic components is held by the resin member with the resin member sandwiched between the at least one of the electronic component and the circuit board. The electronic compressor includes a first metal member that is in contact with the at least one of the electronic components, and thermally connected to the housing, a second metal member that is disposed in the resin member, and a bolt by which the first metal member and the second metal member are fastened with each other.
    Type: Application
    Filed: December 17, 2020
    Publication date: July 1, 2021
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Motonobu FUNATO, Mikio YOSHIDA, Kenji HAYAKAWA, Yusuke KINOSHITA
  • Publication number: 20200111591
    Abstract: Provided is a rare earth sintered magnet in which a multi-layer main phase particle having multiple layers including a layer 1 having R2 concentration, represented by at %, higher than that of a center of the particle, a layer 2 which is formed on the outside of the layer 1 and has R2 concentration lower than that of the layer 1, and a layer 3 which is formed on the outside of the layer 2 and has R2 concentration higher than that of the layer 2 is present at least in a portion in the vicinity of a surface of the main phase particle within at least 500 ?m from a surface of the sintered magnet body.
    Type: Application
    Filed: October 3, 2019
    Publication date: April 9, 2020
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Tetsuya Ohashi, Hiroki Iida, Koichi Hirota, Hajime Nakamura, Mikio Yoshida, Kazuya Fukui, Michihiro Oida
  • Patent number: 9930482
    Abstract: Signals to be used for receiving a service according to position are appropriately selected from a plurality of positioning signals received by a moving device. A device capable of being used while moving and of receiving a service according to a position to which the device has moved comprises: positioning means for, based on positioning signals for location identification separately received from a plurality of positioning devices, determining their respective positional information; holding means for holding positional information determined by the positioning means for each type of the plurality of positioning devices; and notification means for, regarding positional information newly determined by the positioning means, determining with reference to the holding means whether to provide notification of the position in order to receive the service or not, and providing the notification according to the determination.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: March 27, 2018
    Assignee: INTEC INC.
    Inventors: Mikio Yoshida, Takahiro Endo, Kenichi Nagami, Natsuko Yoshizawa
  • Patent number: 9645828
    Abstract: A method includes comparing, in units of a first bit length, a first bit sequence of the first bit length included in a search character bit sequence to a second bit sequence of a second bit length included in a target character bit sequence; when a third bit sequence of the first bit length following the first bit sequence in the search character bit sequence matches a fourth bit sequence of the first bit length following a location matching the first bit sequence in the second bit sequence, creating a fifth bit sequence of the second bit length starting from a location matching the first bit sequence in the target character bit sequence; comparing, in units of the first bit length, the fifth bit sequence to a sixth bit sequence of the second bit length starting from the first bit sequence in the search character bit sequence; and determining.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: May 9, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Kokichi Sugiyama, Takayuki Sano, Naohiro Itou, Mikio Yoshida, Toshiyuki Kurokawa, Motonori Yoshinaga
  • Publication number: 20170048662
    Abstract: Signals to be used for receiving a service according to position are appropriately selected from a plurality of positioning signals received by a moving device. A device capable of being used while moving and of receiving a service according to a position to which the device has moved comprises: positioning means for, based on positioning signals for location identification separately received from a plurality of positioning devices, determining their respective positional information; holding means for holding positional information determined by the positioning means for each type of the plurality of positioning devices; and notification means for, regarding positional information newly determined by the positioning means, determining with reference to the holding means whether to provide notification of the position in order to receive the service or not, and providing the notification according to the determination.
    Type: Application
    Filed: March 13, 2015
    Publication date: February 16, 2017
    Applicant: INTEC INC.
    Inventors: Mikio YOSHIDA, Takahiro ENDO, Kenichi NAGAMI, Natsuko YOSHIZAWA
  • Publication number: 20140358965
    Abstract: A method includes comparing, in units of a first bit length, a first bit sequence of the first bit length included in a search character bit sequence to a second bit sequence of a second bit length included in a target character bit sequence; when a third bit sequence of the first bit length following the first bit sequence in the search character bit sequence matches a fourth bit sequence of the first bit length following a location matching the first bit sequence in the second bit sequence, creating a fifth bit sequence of the second bit length starting from a location matching the first bit sequence in the target character bit sequence; comparing, in units of the first bit length, the fifth bit sequence to a sixth bit sequence of the second bit length starting from the first bit sequence in the search character bit sequence; and determining.
    Type: Application
    Filed: May 27, 2014
    Publication date: December 4, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Kokichi Sugiyama, Takayuki Sano, Naohiro Itou, Mikio Yoshida, Toshiyuki Kurokawa, Motonori Yoshinaga
  • Patent number: 8814576
    Abstract: A structure for connecting a circuit board and an external connector includes a lead and a stress dampening unit. The lead electrically connects the circuit board and the external connector. The external connector is fitted to and removed from the lead. The stress dampening unit dampens stress applied to the circuit board by the lead when the external connector is fitted to and removed from the lead.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: August 26, 2014
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Mikio Yoshida, Masanori Tsuzuki, Shingo Enami, Yusuke Kinoshita
  • Patent number: 8629208
    Abstract: A polymeric flocculant is added to an aqueous solution comprising an organic acid and a basic compound to form a water-soluble fluid suitable for use in machining of rare earth magnet.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: January 14, 2014
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Mikio Yoshida, Shigeru Sakai
  • Patent number: 8592507
    Abstract: A polymeric flocculant is added to an aqueous solution comprising an organic acid and a basic compound to form a water-soluble fluid suitable for use in machining of rare earth magnet.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: November 26, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Mikio Yoshida, Shigeru Sakai
  • Publication number: 20130034975
    Abstract: A structure for connecting a circuit board and an external connector includes a lead and a stress dampening unit. The lead electrically connects the circuit board and the external connector. The external connector is fitted to and removed from the lead. The stress dampening unit dampens stress applied to the circuit board by the lead when the external connector is fitted to and removed from the lead.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 7, 2013
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Mikio YOSHIDA, Masanori TSUZUKI, Shingo ENAMI, Yusuke KINOSHITA
  • Publication number: 20110281986
    Abstract: A polymeric flocculant is added to an aqueous solution comprising an organic acid and a basic compound to form a water-soluble fluid suitable for use in machining of rare earth magnet.
    Type: Application
    Filed: May 11, 2011
    Publication date: November 17, 2011
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Mikio Yoshida, Shigeru Sakai
  • Publication number: 20080309593
    Abstract: A liquid crystal display device includes a liquid crystal panel and an illumination unit. The illumination unit has a planar light emitting region formed by an EL element. The light emitting region is formed by a plurality of linear light emitting regions that extend in a direction perpendicular to the vertical scanning direction of liquid crystal. The linear light emitting regions are switched between a light emitting state and a non-light emitting state based on a command signal from a controller in a manner that the linear light emitting regions sequentially emit light in synchronization with vertical scanning of the liquid crystal. Each linear light emitting region is controlled to be in the non-light emitting state at least during a drive data rewriting period of a portion of the liquid crystal immediately above the linear light emitting region.
    Type: Application
    Filed: May 20, 2005
    Publication date: December 18, 2008
    Inventors: Takayuki Ito, Hiroyasu Kawauchi, Norihito Takeuchi, Masayuki Harada, Hiroyuki Miura, Haruyuki Ishikawa, Minoru Toeda, Mikio Yoshida, Noriyuki Besshi, Shuji Koike
  • Patent number: 7144146
    Abstract: A transparent substrate used for an area light emitting device. The transparent substrate comprises a light incidence surface and a light exit surface opposite to the light incidence surface. A plurality of recesses are formed on the light exit surface bulged towards the light incidence surface. Each recess has a shape approximately corresponding to a portion of an oval sphere. Each recess perimeter on the light exit surface is approximately circle. Each recess is separately formed from other recesses.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: December 5, 2006
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Norihito Takeuchi, Fumikazu Isogai, Haruyuki Ishikawa, Mikio Yoshida