Patents by Inventor Mitsumasa Okada

Mitsumasa Okada 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: 20240128809
    Abstract: A stator includes: a plurality of stator blocks; a plurality of coils; and a supporter supporting the plurality of stator blocks. Each of the plurality of stator blocks includes: a yoke portion located at its outermost perimeter; and a teeth portion protruding from an inner peripheral surface of the yoke portion. The yoke portion has a width dimension along the circumferential direction, and the width dimension of the yoke portion is greater than a width dimension of the teeth portion along the circumferential direction. The supporter is closed in the circumferential direction. The supporter holds the plurality of stator blocks such that the plurality of stator blocks are housed in an interior of the supporter. The supporter has an inner peripheral surface in contact with at least an outer peripheral surface of the yoke portion of each of the plurality of stator blocks.
    Type: Application
    Filed: December 20, 2021
    Publication date: April 18, 2024
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yuya AKO, Hideki TAMURA, Mitsumasa MIZUNO, Kenji OKADA
  • Publication number: 20240097511
    Abstract: A stator includes a plurality of stator blocks aligned in a circumferential direction and a plurality of coils each made of a winding wound around a corresponding one of the plurality of stator blocks. The stator includes a plurality of insulation members electrically insulating from the plurality of stator blocks from the plurality of coils for respective groups of the plurality of stator blocks and the plurality of coils. Each of the plurality of stator blocks includes a yoke portion located at its outermost perimeter and a teeth portion protruding from an inner peripheral surface of the yoke portion. Each of the plurality of insulation members includes a pair of insulating plates arranged to face each other across the teeth portion. Each of the pair of insulating plates has a width greater than a width of the teeth portion.
    Type: Application
    Filed: December 20, 2021
    Publication date: March 21, 2024
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hideki TAMURA, Kenji OKADA, Mitsumasa MIZUNO, Yuya AKO
  • Publication number: 20240097518
    Abstract: A stator includes a plurality of stator blocks aligned in a circumferential direction and a plurality of coils each made of a winding wound around a corresponding one of the plurality of stator blocks. The stator includes a plurality of insulation members electrically insulating from the plurality of stator blocks from the plurality of coils for respective groups of the plurality of stator blocks and the plurality of coils. Each of the plurality of stator blocks includes a yoke portion located at its outermost perimeter, a teeth portion protruding from an inner peripheral surface of the yoke portion, and an insulating portion being electrically insulating and covering a surface of the teeth portion. Each of the plurality of insulation members includes a pair of insulating plates. Each of the pair of insulating plates has a width greater than a width of the teeth portion, and the pair of insulating plates are arranged to face each other across the teeth portion.
    Type: Application
    Filed: December 20, 2021
    Publication date: March 21, 2024
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hideki TAMURA, Mitsumasa MIZUNO, Yuya AKO, Kenji OKADA
  • Publication number: 20240079928
    Abstract: An electric tool includes a motor. The motor includes a stator and a rotor. The rotor rotates with respect to the stator. At least one of the stator or the rotor includes a core (stator core or rotor core) that includes an oriented steel sheet.
    Type: Application
    Filed: January 27, 2021
    Publication date: March 7, 2024
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Mitsumasa MIZUNO, Kenji OKADA, Hideki TAMURA, Yuya AKO
  • Patent number: 9326787
    Abstract: An energy treatment instrument includes an electrically conductive probe having a first electrode in a distal end portion and adapted to transmit high-frequency electric current and ultrasound vibration to the first electrode, an electrode member installed on both sides of a longitudinal axis of the first electrode separately from the electrically conductive probe and provided with a second electrode, and a movable member. The movable member is installed at a distal end of the sheath member and configured to be openable and closable with respect to the second electrode. The movable member is placed at a position facing the first electrode installed at the distal end of the probe and the second electrode and includes a third electrode provided with an electrode surface configured to be able to conduct high-frequency electric current between the third electrode and the first and second electrodes.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: May 3, 2016
    Assignee: OLYMPUS CORPORATION
    Inventors: Hideo Sanai, Mitsumasa Okada
  • Patent number: 8672935
    Abstract: An ultrasound treatment system comprises an ultrasonic transducer, a handpiece, a probe, a sheath, a clamping member, an operation unit, an operating member, a suction base, and a perfusion base. The ultrasonic transducer generates ultrasonic vibrations. The handpiece has the ultrasonic transducer incorporated therein. The probe is connected to the ultrasonic transducer for transmitting ultrasonic vibrations to a distal member realizing a stationary portion that is a treatment portion for treating a living tissue. The sheath serves as a protecting member for shielding the probe. The clamping member is opposed to the distal member at the distal end of the sheath for clamping a living tissue in cooperation with the distal member. The operation unit is manipulated for clamping a living tissue with the clamping member and distal member or freeing the living tissue therefrom.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: March 18, 2014
    Assignee: Olympus Corporation
    Inventors: Mitsumasa Okada, Toshiya Sugai, Yoshitaka Honda, Manabu Ishikawa, Tomohisa Sakurai
  • Patent number: 8574228
    Abstract: An ultrasound treatment system comprises an ultrasonic transducer, a handpiece, a probe, a sheath, a clamping member, an operation unit, an operating member, a suction base, and a perfusion base. The ultrasonic transducer generates ultrasonic vibrations. The handpiece has the ultrasonic transducer incorporated therein. The probe is connected to the ultrasonic transducer for transmitting ultrasonic vibrations to a distal member realizing a stationary portion that is a treatment portion for treating a living tissue. The sheath serves as a protecting member for shielding the probe. The clamping member is opposed to the distal member at the distal end of the sheath for clamping a living tissue in cooperation with the distal member. The operation unit is manipulated for clamping a living tissue with the clamping member and distal member or freeing the living tissue therefrom.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: November 5, 2013
    Assignee: Olympus Corporation
    Inventors: Mitsumasa Okada, Toshiya Sugai, Yoshitaka Honda, Manabu Ishikawa, Tomohisa Sakurai
  • Patent number: 8340520
    Abstract: ONU 2A for P-P includes a signal-type discriminating unit 22A that discriminates whether a type of a downstream signal transmitted from OLT is for the P-P or not, and outputs an enable/disable control signal that controls an optical transmitter to an enable state or a disable state, and a control unit 21 that controls the optical transmitter to the enable state or the disable state according to the enable/disable control signal, wherein the signal-type discriminating unit 22A outputs to the control unit 21 a disable control signal that controls the optical transmitter to the disable state under an initial state before the type of the downstream signal is discriminated, and outputs to the control unit 21 an enable control signal that controls the optical transmitter to the enable state after the downstream signal is discriminated to be for the P-P.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: December 25, 2012
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Junichi Kani, Yukihiro Fujimoto, Ryogo Kubo, Mitsumasa Okada
  • Publication number: 20120203143
    Abstract: An energy treatment instrument includes an electrically conductive probe having a first electrode in a distal end portion and adapted to transmit high-frequency electric current and ultrasound vibration to the first electrode, an electrode member installed on both sides of a longitudinal axis of the first electrode separately from the electrically conductive probe and provided with a second electrode, and a movable member. The movable member is installed at a distal end of the sheath member and configured to be openable and closable with respect to the second electrode. The movable member is placed at a position facing the first electrode installed at the distal end of the probe and the second electrode and includes a third electrode provided with an electrode surface configured to be able to conduct high-frequency electric current between the third electrode and the first and second electrodes.
    Type: Application
    Filed: February 2, 2012
    Publication date: August 9, 2012
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Hideo SANAI, Mitsumasa OKADA
  • Patent number: 7922651
    Abstract: An ultrasonic treatment apparatus includes a sheath which has an opening at a distal-end thereof; an ultrasonic transducer which is connected to the sheath, the ultrasonic transducer being able to generate ultrasonic vibration which is of treatment energy; an ultrasonic power supply unit which supplies electric power for driving the ultrasonic transducer; a treatment unit which is connected to the ultrasonic transducer, the treatment unit transmitting the ultrasonic vibration to a living tissue; and a high-frequency power supply unit which supplies high-frequency current which is of the treatment energy to the treatment unit.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: April 12, 2011
    Assignees: Olympus Corporation, Olympus Medical Systems Corporation
    Inventors: Norihiro Yamada, Yoshio Onuki, Mitsumasa Okada, Akihito Sadamasa, Kiyoshi Miyake, Masayuki Iwasaka
  • Publication number: 20110004127
    Abstract: An ultrasound treatment system comprises an ultrasonic transducer, a handpiece, a probe, a sheath, a clamping member, an operation unit, an operating member, a suction base, and a perfusion base. The ultrasonic transducer generates ultrasonic vibrations. The handpiece has the ultrasonic transducer incorporated therein. The probe is connected to the ultrasonic transducer for transmitting ultrasonic vibrations to a distal member realizing a stationary portion that is a treatment portion for treating a living tissue. The sheath serves as a protecting member for shielding the probe. The clamping member is opposed to the distal member at the distal end of the sheath for clamping a living tissue in cooperation with the distal member. The operation unit is manipulated for clamping a living tissue with the clamping member and distal member or freeing the living tissue therefrom.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 6, 2011
    Applicant: OLYMPUS CORPORATION
    Inventors: Mitsumasa Okada, Toshiya Sugai, Yoshitaka Honda, Manabu Ishikawa, Tomohisa Sakurai
  • Publication number: 20100324458
    Abstract: An ultrasound treatment system comprises an ultrasonic transducer, a handpiece, a probe, a sheath, a clamping member, an operation unit, an operating member, a suction base, and a perfusion base. The ultrasonic transducer generates ultrasonic vibrations. The handpiece has the ultrasonic transducer incorporated therein. The probe is connected to the ultrasonic transducer for transmitting ultrasonic vibrations to a distal member realizing a stationary portion that is a treatment portion for treating a living tissue. The sheath serves as a protecting member for shielding the probe. The clamping member is opposed to the distal member at the distal end of the sheath for clamping a living tissue in cooperation with the distal member. The operation unit is manipulated for clamping a living tissue with the clamping member and distal member or freeing the living tissue therefrom.
    Type: Application
    Filed: June 30, 2010
    Publication date: December 23, 2010
    Applicant: OLYMPUS CORPORATION
    Inventors: Mitsumasa Okada, Toshiya Sugai, Yoshitaka Honda, Manabu Ishikawa, Tomohisa Sakurai
  • Publication number: 20100239247
    Abstract: ONU 2A for P-P includes a signal-type discriminating unit 22A that discriminates whether a type of a downstream signal transmitted from OLT is for the P-P or not, and outputs an enable/disable control signal that controls an optical transmitter to an enable state or a disable state, and a control unit 21 that controls the optical transmitter to the enable state or the disable state according to the enable/disable control signal, wherein the signal-type discriminating unit 22A outputs to the control unit 21 a disable control signal that controls the optical transmitter to the disable state under an initial state before the type of the downstream signal is discriminated, and outputs to the control unit 21 an enable control signal that controls the optical transmitter to the enable state after the downstream signal is discriminated to be for the P-P.
    Type: Application
    Filed: September 18, 2008
    Publication date: September 23, 2010
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Junichi Kani, Yukihiro Fujimoto, Ryogo Kubo, Mitsumasa Okada
  • Patent number: 7780659
    Abstract: An ultrasound treatment system in accordance with the present invention comprises an ultrasonic transducer, a handpiece, a probe, a sheath, a clamping member, an operation unit, an operating member, a suction base, and a perfusion base. The ultrasonic transducer generates ultrasonic vibrations. The handpiece has the ultrasonic transducer incorporated therein and serves as an operation unit. The probe is connected to the ultrasonic transducer, and serves as a vibration transmitting member for transmitting ultrasonic vibrations to a distal member realizing a stationary portion that is a treatment portion for treating a living tissue. The sheath serves as a protecting member for shielding the probe. The clamping member is opposed to the distal member at the distal end of the sheath, and realizes a movable portion that is another treatment portion for clamping a living tissue in cooperation with the distal member.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: August 24, 2010
    Assignee: Olympus Corporation
    Inventors: Mitsumasa Okada, Toshiya Sugai, Yoshitaka Honda, Manabu Ishikawa, Tomohisa Sakurai
  • Patent number: 7667592
    Abstract: A treatment instrument output data analysis section includes a probe ID extraction section, an output waveform extraction section, a data analysis section and an analysis result output section. The analysis result output section of the treatment instrument output data analysis section can display on a centralized display panel a synthetic image made by synthesizing a frame image stored in an image storage section of an endoscopic camera apparatus and an analysis result analyzed by the data analysis section.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: February 23, 2010
    Assignee: Olympus Medical Systems Corp.
    Inventors: Masahide Ohyama, Hideyuki Shoji, Sumihiro Uchimura, Masanori Gocho, Takashi Mihori, Shinji Hatta, Mitsumasa Okada, Makoto Inaba, Masakazu Gotanda, Yoshitaka Honda
  • Patent number: 7455641
    Abstract: An ultrasonic treatment apparatus comprises an endoscope having an insertion portion to be inserted in a body cavity, and a treatment unit having an ultrasonic vibrator which generates ultrasonic vibrations, and a treatment portion which performs treatment by utilizing the ultrasonic vibrations generated by the ultrasonic vibrator. The ultrasonic treatment apparatus further comprises a treatment unit holding portion, which is provided in a distal end portion of the insertion portion and to which the treatment unit is attached, a cable which transmits an electric signal to the ultrasonic vibrator, and at least one bundle member which bundles the insertion portion and the cable.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: November 25, 2008
    Assignee: Olympus Corporation
    Inventors: Norihiro Yamada, Haruhiko Ueno, Hiroyuki Takahashi, Hiroyoshi Watanabe, Keita Suzuki, Mitsumasa Okada, Takeaki Nakamura
  • Publication number: 20080194999
    Abstract: An ultrasonic treatment apparatus includes an ultrasonic transducer to generate ultrasonic vibration, a probe a proximal end of which is connected to the ultrasonic transducer and which extends from a proximal end side to a distal end side, and a treatment portion which includes at least one recess formed on the side of the probe and treats a living tissue by ultrasonic vibration generated by the ultrasonic transducer.
    Type: Application
    Filed: February 9, 2007
    Publication date: August 14, 2008
    Inventors: Norihiro Yamaha, Yuusuke Tadami, Mitsumasa Okada, Hideto Yoshimine, Masashi Yamada
  • Publication number: 20080129527
    Abstract: A treatment instrument output data analysis section includes a probe ID extraction section, an output waveform extraction section, a data analysis section and an analysis result output section. The analysis result output section of the treatment instrument output data analysis section can display on a centralized display panel a synthetic image made by synthesizing a frame image stored in an image storage section of an endoscopic camera apparatus and an analysis result analyzed by the data analysis section.
    Type: Application
    Filed: June 12, 2007
    Publication date: June 5, 2008
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Masahide Ohyama, Hideyuki Shoji, Sumihiro Uchimura, Masanori Gocho, Takashi Mihori, Shinji Hatta, Mitsumasa Okada, Makoto Inaba, Masakazu Gotanda, Yoshitaka Honda
  • Publication number: 20070038157
    Abstract: An ultrasonic treatment apparatus includes a sheath which has an opening at a distal-end thereof; an ultrasonic transducer which is connected to the sheath, the ultrasonic transducer being able to generate ultrasonic vibration which is of treatment energy; an ultrasonic power supply unit which supplies electric power for driving the ultrasonic transducer; a treatment unit which is connected to the ultrasonic transducer, the treatment unit transmitting the ultrasonic vibration to a living tissue; and a high-frequency power supply unit which supplies high-frequency current which is of the treatment energy to the treatment unit.
    Type: Application
    Filed: July 25, 2006
    Publication date: February 15, 2007
    Inventors: Norihiro Yamada, Yoshio Onuki, Mitsumasa Okada, Akihito Sadamasa, Kiyoshi Miyake, Masayuki Iwasaka
  • Patent number: 6887252
    Abstract: An ultrasonic treatment appliance includes a handpiece with a built-in ultrasonic transducer, and an elongated probe extending forward from the handpiece and connected to the ultrasonic transducer in order to propagate ultrasonic vibrations. The ultrasonic treatment appliance further comprises a distal probe part formed as an integral part of or independently of the probe at the distal end of the probe, and a clamping portion opposed to the distal probe part so that the clamping portion can open or close freely, the clamping portion being freely attachable thereto or detachable therefrom.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: May 3, 2005
    Assignee: Olympus Corporation
    Inventors: Mitsumasa Okada, Makoto Miyawaki, Manabu Ishikawa