Patents by Inventor Yoshiaki Yamaguchi

Yoshiaki Yamaguchi 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: 20240154547
    Abstract: An electric machine system includes an electric machine, an electric power converter, and a control unit. The electric machine includes a stator that includes coils, and a rotator that includes a magnet and is rotatable with respect to the stator. The electric power converter inputs electric power with respect to the coils of the electric machine. The control unit controls the electric power converter. The control unit includes an output unit and a correction unit. The output unit outputs a control signal for operating the electric power converter to the electric power converter. The correction unit corrects a phase of the control signal that determines input timing of the electric power with respect to the coils of the electric machine. The correction unit corrects the phase so that the magnitude of the electric power approaches an extreme value.
    Type: Application
    Filed: January 16, 2024
    Publication date: May 9, 2024
    Inventors: Koji YAMAGUCHI, Shota FUJISAWA, Toru KURIBAYASHI, Kenshiro KATSURA, Tatsuro YAMADA, Yoshiaki TAKAHASHI
  • Publication number: 20240133863
    Abstract: A lipid bimolecular membrane substrate 1A includes: a substrate 12 in which a microwell 20 opened on one surface is formed; a lipid bimolecular membrane 30 disposed on the substrate 12 so as to cover an opening of the microwell 20; and a sealing liquid 22 disposed between the substrate 12 and the lipid bimolecular membrane 30. The sealing liquid 22 contains an ionic liquid.
    Type: Application
    Filed: February 25, 2021
    Publication date: April 25, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yoshiaki KASHIMURA, Masumi YAMAGUCHI
  • Patent number: 11916454
    Abstract: A stator includes a stator core that includes a core back portion having an annular shape and with a central axis as a center and tooth portions extending from the core back portion to an inside in a radial direction and arranged in a circumferential direction, insulators that are attached to the tooth portions from the inside in the radial direction, a coil that is wound around the insulator, and a cover that supports an inner surface of the insulator opposing the inside in the radial direction from the inside in the radial direction.
    Type: Grant
    Filed: February 4, 2022
    Date of Patent: February 27, 2024
    Assignee: NIDEC CORPORATION
    Inventors: Tatsuro Kawamoto, Yuhei Yamaguchi, Yoshiaki Yamashita
  • Patent number: 10663169
    Abstract: A cylinder for a combustor includes a cylindrical member, a first cooling passage defined in the cylindrical member and a second cooling passage defined in the cylindrical member, and a supply port extender. The first cooling passage includes a supply port that opens to an outer peripheral surface of the cylindrical member. The second cooling passage includes a discharge port that opens to the outer peripheral surface of the cylindrical member downstream of the supply port. The supply port extender includes a first wall that is disposed between the supply port and the discharge port and extends away from the outer peripheral surface of the cylindrical member and a second wall that is disposed upstream of the supply port and extends away from the outer peripheral surface of the cylindrical member.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: May 26, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Satoshi Mizukami, Satoshi Tanimura, Tetsu Konishi, Masaki Mitani, Taiki Kinoshita, Yoshiaki Yamaguchi, Takaaki Hase, Hiroshi Makigano, Hikaru Kurosaki
  • Patent number: 10352243
    Abstract: A gas turbine equipped with a compressor, a combustion chamber and a turbine is further equipped with: a pressurizing device for taking a portion of the compressed air compressed by the compressor, and pressurizing the compressed air; a combustion chamber cooling line for cooling the combustion chamber using the pressurized compressed air; a temperature regulating line for regulating the temperature of a stationary member of a blade ring or the like of a turbine by using the pressurized compressed air; a combustion chamber supply line through which the compressed air flows from the pressurizing device to the combustion chamber cooling line; a turbine supply line through which the compressed air flows from the pressurizing device to the temperature regulating line; a heater for heating the compressed air, provided in the turbine supply line; and a control device capable of controlling the heater.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: July 16, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Satoshi Mizukami, Yoshiaki Yamaguchi, Tetsu Konishi, Toshio Takanezawa, Hiroyuki Yamazaki
  • Patent number: 10352244
    Abstract: A gas turbine combustor comprising a plurality of cooling air passages (27A) through which bled pressurized air flows from downstream of a combustion gas flow toward upstream, the plurality of cooling air passages (27A) being disposed in a wall portion (26) side by side and aligned in a flow direction of a combustion gas; wherein the plurality of cooling air passages (27A) are divided via a passage transition groove portion (33) into upstream cooling air passages (27A1) disposed closer to bled pressurized air inlet holes (30a) and downstream cooling air passages (27A2) disposed closer to bled pressurized air outlet holes (30b), and center lines (C1) of the upstream cooling air passages are non-collinear with center lines (C2) of the downstream cooling air passages.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: July 16, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Yoshiaki Yamaguchi, Satoshi Mizukami, Tomoyuki Hirata, Junichiro Masada, Tetsu Konishi, Kazumasa Takata, Hiroyuki Yamazaki, Takuya Suzuki, Shinya Ishikawa
  • Publication number: 20170108221
    Abstract: A cylinder for a combustor provided with a cylindrical member, a first cooling passage and a second cooling passage formed in the cylindrical member, and a supply port extended portion. The first cooling passage includes a supply port that opens to an outer peripheral surface of the cylindrical member. The second cooling passage includes a discharge port that opens to the outer peripheral surface of the cylindrical member downstream of the supply port. The supply port extended portion includes a first wall portion disposed between the supply port and the discharge port extending away from the outer peripheral surface of the cylindrical member and a second wall portion disposed upstream of the supply port extending away from the outer peripheral surface of the cylindrical member.
    Type: Application
    Filed: July 22, 2015
    Publication date: April 20, 2017
    Inventors: Satoshi MIZUKAMI, Satoshi TANIMURA, Tetsu KONISHI, Masaki MITANI, Taiki KINOSHITA, Yoshiaki YAMAGUCHI, Takaaki HASE, Hiroshi MAKIGANO, Hikaru KUROSAKI
  • Publication number: 20170044981
    Abstract: A gas turbine combustor comprising a plurality of cooling air passages (27A) through which bled pressurized air flows from downstream of a combustion gas flow toward upstream, the plurality of cooling air passages (27A) being disposed in a wall portion (26) side by side and aligned in a flow direction of a combustion gas; wherein the plurality of cooling air passages (27A) are divided via a passage transition groove portion (33) into upstream cooling air passages (27A1) disposed closer to bled pressurized air inlet holes (30a) and downstream cooling air passages (27A2) disposed closer to bled pressurized air outlet holes (30b), and center lines (C1) of the upstream cooling air passages are non-collinear with center lines (C2) of the downstream cooling air passages.
    Type: Application
    Filed: April 25, 2014
    Publication date: February 16, 2017
    Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Yoshiaki Yamaguchi, Satoshi Mizukami, Tomoyuki Hirata, Junichiro Masada, Tetsu Konishi, Kazumasa Takata, Hiroyuki Yamazaki, Takuya Suzuki, Shinya Ishikawa
  • Publication number: 20160230663
    Abstract: A gas turbine equipped with a compressor, a combustion chamber and a turbine is further equipped with: a pressurizing device for taking a portion of the compressed air compressed by the compressor, and pressurizing the compressed air; a combustion chamber cooling line for cooling the combustion chamber using the pressurized compressed air; a temperature regulating line for regulating the temperature of a stationary member of a blade ring or the like of a turbine by using the pressurized compressed air; a combustion chamber supply line through which the compressed air flows from the pressurizing device to the combustion chamber cooling line; a turbine supply line through which the compressed air flows from the pressurizing device to the temperature regulating line; a heater for heating the compressed air, provided in the turbine supply line; and a control device capable of controlling the heater.
    Type: Application
    Filed: September 19, 2014
    Publication date: August 11, 2016
    Inventors: Satoshi MIZUKAMI, Yoshiaki YAMAGUCHI, Tetsu KONISHI, Toshio TAKANEZAWA, Hiroyuki YAMAZAKI
  • Patent number: 8341703
    Abstract: In remotely coupling one terminal apparatus to a server apparatus, if an authentication processing of a user of one terminal apparatus has been already completed, the user can switch one terminal apparatus to another without an additional authentication processing. Authenticated information indicating that the authentication of the user has already been successfully completed is transferred to another terminal apparatus by coordinating the authenticated information between more than one terminal apparatuses. Another terminal apparatus receives a service from the server apparatus using the authenticated information. Upon coordinating the authenticated information among more than one terminal apparatuses, another terminal apparatus to receive the authenticated information may be authenticated. A storage medium which conducts the authentication may be coupled to a terminal apparatus to be authenticated.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: December 25, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Katsuyuki Umezawa, Akira Kanehira, Katsuya Terada, Yoshiaki Yamaguchi
  • Publication number: 20110113241
    Abstract: An IC card includes: a common key set upon issuance of a card by an IC card issuer; a public key certificate of a parent IC card issued by an authentication station; a signed public key which has been signed by using the parent IC card secret key; a key storage unit which stores the secret key; a data transmission/reception unit which receives at least the public key certificate and the signed public key from the parent IC card; an encryption calculation unit which decodes encrypted user biometric information received from the parent IC card; and a biometric information storage unit which stores first biometric information which has been decoded. The use of the IC card is limited depending on whether biometric information is correct.
    Type: Application
    Filed: February 2, 2009
    Publication date: May 12, 2011
    Applicant: HITACHI, LTD.
    Inventors: Katsuyuki Umezawa, Kenji Matsumoto, Katsuya Terada, Yoshiaki Yamaguchi
  • Publication number: 20100071033
    Abstract: In remotely coupling one terminal apparatus to a server apparatus, if an authentication processing of a user of one terminal apparatus has been already completed, the user can switch one terminal apparatus to another without an additional authentication processing. Authenticated information indicating that the authentication of the user has already been successfully completed is transferred to another terminal apparatus by coordinating the authenticated information between more than one terminal apparatuses. Another terminal apparatus receives a service from the server apparatus using the authenticated information. Upon coordinating the authenticated information among more than one terminal apparatuses, another terminal apparatus to receive the authenticated information may be authenticated. A storage medium which conducts the authentication may be coupled to a terminal apparatus to be authenticated.
    Type: Application
    Filed: August 12, 2009
    Publication date: March 18, 2010
    Inventors: Katsuyuki UMEZAWA, Akira Kanehira, Katsuya Terada, Yoshiaki Yamaguchi
  • Publication number: 20080295871
    Abstract: A chemical supply system comprises, as principal elements, a chemical storage tank in which a liquid chemical for cleaning is stored in the state of its formulated concentrate, a chemical supply apparatus connected to the chemical storage tank for positively performing chemical supply, a piping system connected to the chemical supply apparatus to form a supply flow passage that is a passage for ultrapure water which the liquid chemical is to be mixed with, a pair of discharge nozzles disposed at end portions of the piping system so as to oppose surfaces of a wafer set in a cleaning chamber to supply a cleaning liquid onto the surfaces. Thereby, remarkable miniaturization/simplification of a cleaning liquid supply system including chemical tanks is intended, it is made possible easily and rapidly to compound and supply a cleaning liquid at an accurate chemical concentration, and particles or the like being generated and mixing in a cleaning liquid, are suppressed to the extremity.
    Type: Application
    Filed: March 26, 2007
    Publication date: December 4, 2008
    Applicant: Sipec Corporation
    Inventors: Takahisa Nitta, Nobuhiro Miki, Yoshiaki Yamaguchi
  • Patent number: 7400319
    Abstract: A pair of piezoelectric substrates, the length of which is shorter than the length of one side in the longitudinal direction of the operation panel or the supporting board, is respectively fixed to one side from the diagonal position along the longitudinal direction. At the time of detecting an inputting operation, a drive voltage is applied and the entire operation panel or the supporting board is vibrated. Even when the four corners of the operation panel or the supporting board are supported by the housing for accommodating the tablet apparatus or supported by the display device so that the vibration of the four corners is restricted, since either of the pair of piezoelectric substrates, which becomes a vibration source, a feeling of inputting operation can be transmitted to an operator by the vibration, the amplitude of which is not less than a predetermined value, irrespective of the inputting operation position.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: July 15, 2008
    Assignee: SMK Corporation
    Inventors: Naomi Nakayama, Kazuo Imai, Yoshiaki Yamaguchi, Isamu Saito
  • Publication number: 20070127309
    Abstract: A chemical supply system comprises, as principal elements, a chemical storage tank in which a liquid chemical for cleaning is stored in the state of its formulated concentrate, a chemical supply apparatus connected to the chemical storage tank for positively performing chemical supply, a piping system connected to the chemical supply apparatus to form a supply flow passage that is a passage for ultrapure water which the liquid chemical is to be mixed with, a pair of discharge nozzles disposed at end portions of the piping system so as to oppose surfaces of a wafer set in a cleaning chamber to supply a cleaning liquid onto the surfaces. Thereby, remarkable miniaturization/simplification of a cleaning liquid supply system including chemical tanks is intended, it is made possible easily and rapidly to compound and supply a cleaning liquid at an accurate chemical concentration, and particles or the like being generated and mixing in a cleaning liquid, are suppressed to the extremity.
    Type: Application
    Filed: October 26, 2006
    Publication date: June 7, 2007
    Applicant: Sipec Corporation
    Inventors: Takahisa Nitta, Nobuhiro Miki, Yoshiaki Yamaguchi
  • Patent number: 7195024
    Abstract: A chemical supply system comprises, as principal elements, a chemical storage tank in which a liquid chemical for cleaning is stored in the state of its formulated concentrate, a chemical supply apparatus connected to the chemical storage tank for positively performing chemical supply, a piping system connected to the chemical supply apparatus to form a supply flow passage that is a passage for ultrapure water which the liquid chemical is to be mixed with, a pair of discharge nozzles disposed at end portions of the piping system so as to oppose surfaces of a wafer set in a cleaning chamber to supply a cleaning liquid onto the surfaces. Thereby, remarkable miniaturization/simplification of a cleaning liquid supply system including chemical tanks is intended, it is made possible easily and rapidly to compound and supply a cleaning liquid at an accurate chemical concentration, and particles or the like being generated and mixing in a cleaning liquid, are suppressed to the extremity.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: March 27, 2007
    Assignee: SIPEC Corporation
    Inventors: Takahisa Nitta, Nobuhiro Miki, Yoshiaki Yamaguchi
  • Patent number: 7026180
    Abstract: A squeegee is slid over a metal mask plate so as to fill a sealing resin in a resin inflow space through a through hole, and the sealing resin, deposited on an outer surface of an electronic part that includes a vibrating part, is thermally set. A through hole that corresponds to an electronic part is formed in a metal mask plate. The through hole includes a lower smaller through hole and an upper larger through hole communicating with an upper side of the lower smaller through hole, and a step portion is formed within the through hole. A relief recess is provided in a region of a metal mask plate including at least a projected region in which an operating area is projected onto a surface of the metal mask plate opposing the touch panel in a state in which the metal mask plate covers the touch panel.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: April 11, 2006
    Assignee: SMK Corporation
    Inventors: Kazuo Imai, Isamu Saito, Yoshiaki Yamaguchi, Naomi Nakayama
  • Patent number: D536301
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: February 6, 2007
    Assignee: GS Yuasa Corporation
    Inventors: Kenzou Kawakita, Yoshiaki Yamaguchi, Takashi Akimoto, Masamichi Inakura, Kenji Yamauchi
  • Patent number: D543938
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: June 5, 2007
    Assignee: Yuasa Corporation
    Inventors: Kenzou Kawakita, Yoshiaki Yamaguchi, Takashi Akimoto, Masamichi Inakura, Kenji Yamauchi
  • Patent number: D553565
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: October 23, 2007
    Assignee: GS Yuasa Corporation
    Inventors: Kenzou Kawakita, Yoshiaki Yamaguchi, Takashi Akimoto, Masamichi Inakura, Kenji Yamauchi