Patents by Inventor Kuniaki Matsumoto

Kuniaki Matsumoto 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: 11715986
    Abstract: A motor includes a rotor and a stator including a stator core and a winding including a first extension extending with respect to the stator core toward one side in a rotation-axis direction of the rotor, a second extension extending toward a rotation-radial direction outside of the rotor from an end of the first extension on the one side in the rotation-axis direction, and a third extension extending toward the one side in the rotation-axis direction from an end at the rotor rotation-radial direction outside of the second extension, and connected to a circuit device, and the winding forming a coil around the stator core, and such that an inner bent portion at a boundary between the first and second extensions is disposed at the one side in the rotation-axis direction with respect to an outer bent portion at a boundary between the second and third extensions.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: August 1, 2023
    Assignee: DENSO CORPORATION
    Inventors: Shinji Ikeda, Takumi Nagaya, Tatsuya Takagi, Kuniaki Matsumoto, Kazuhiro Hosotani, Yutaro Yagi, Yoshihiko Suga, Takuya Matsumoto, Shunichi Hiraoka
  • Patent number: 11690572
    Abstract: A flush device including: a first housing provided with a first flow path; a second housing provided with a second flow path, the second housing being coupled to the first housing; a flow control device including a protrusion and a through hole connecting the first flow path to the second flow path in fluid communication; and an elastic member provided around the base of the flow control device to seal off a space between the first and the second flow paths. The elastic member is deformed to further connect the first and second flow paths in fluid communication. The first housing has an inner periphery provided with fitting receiving portions each being fitted to each of the fitting projections of the protrusion. According to this structure, the flush device can discharge a chemical liquid at a flow rate close to a defined amount.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: July 4, 2023
    Assignee: NIPRO Corporation
    Inventors: Yasushi Matsumoto, Kuniaki Matsumoto
  • Publication number: 20220241485
    Abstract: An objective of the present invention is to a suction bottle or a thrombus aspirator having a novel structure capable of solving at least one of the problems inherent in conventional suction bottles such as allowing a practitioner to quickly and easily confirm the presence of a thrombus in the suctioned blood, being able to easily separate the suctioned blood and thrombus, and being able to make the bottle compact to facilitate handling. The suction bottle (10) for a thrombus aspirator is equipped with a thrombus trapping member (82) that spreads so as to separate the inside of the bottle into an upper region (78) and a lower region (80). The thrombus trapping member (82) is provided with a plurality of through-holes (88) that cause blood guided to the upper surface to flow down from the upper region (78) to the lower region (80).
    Type: Application
    Filed: June 1, 2020
    Publication date: August 4, 2022
    Inventors: Naoki NAKAGAWA, Junichi MUTO, Kuniaki MATSUMOTO
  • Publication number: 20210328476
    Abstract: A motor includes a rotor and a stator including a stator core and a winding including a first extension extending with respect to the stator core toward one side in a rotation-axis direction of the rotor, a second extension extending toward a rotation-radial direction outside of the rotor from an end of the first extension on the one side in the rotation-axis direction, and a third extension extending toward the one side in the rotation-axis direction from an end at the rotor rotation-radial direction outside of the second extension, and connected to a circuit device, and the winding forming a coil around the stator core, and such that an inner bent portion at a boundary between the first and second extensions is disposed at the one side in the rotation-axis direction with respect to an outer bent portion at a boundary between the second and third extensions.
    Type: Application
    Filed: June 29, 2021
    Publication date: October 21, 2021
    Inventors: Shinji IKEDA, Takumi NAGAYA, Tatsuya TAKAGI, Kuniaki MATSUMOTO, Kazuhiro HOSOTANI, Yutaro YAGI, Yoshihiko SUGA, Takuya MATSUMOTO, Shunichi HIRAOKA
  • Patent number: 11088585
    Abstract: A motor unit includes a stator including a coil formed from a wound winding that is configured by a conductive member including an insulating covering layer on the surface of the conductive member, a rotor that rotates under the influence of a rotating magnetic field generated by the stator, and a centerpiece that supports the stator and is formed with a centerpiece-side winding insertion hole through which the winding is inserted. The motor unit also includes a circuit device and a potting section. The potting section is formed using potting material, and seals a gap formed between the centerpiece-side winding insertion hole and the winding by achieving a state in which a portion of the potting section is closely adhered to the covering layer of the winding.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: August 10, 2021
    Assignee: DENSO CORPORATION
    Inventors: Shinji Ikeda, Takumi Nagaya, Tatsuya Takagi, Kuniaki Matsumoto, Kazuhiro Hosotani, Yutaro Yagi, Yoshihiko Suga, Takuya Matsumoto, Shunichi Hiraoka
  • Publication number: 20200352512
    Abstract: A flush device including: a first housing provided with a first flow path; a second housing provided with a second flow path, the second housing being coupled to the first housing; a flow control device including a protrusion and a through hole connecting the first flow path to the second flow path in fluid communication; and an elastic member provided around the base of the flow control device to seal off a space between the first and the second flow paths. The elastic member is deformed to further connect the first and second flow paths in fluid communication. The first housing has an inner periphery provided with fitting receiving portions each being fitted to each of the fitting projections of the protrusion. According to this structure, the flush device can discharge a chemical liquid at a flow rate close to a defined amount.
    Type: Application
    Filed: September 11, 2018
    Publication date: November 12, 2020
    Inventors: Yasushi Matsumoto, Kuniaki Matsumoto
  • Publication number: 20200215300
    Abstract: A catheter having an elongated lumen extending along a longitudinal axis, includes: an inner layer member having an inner circumferential surface in contact with the lumen; an outer layer member having an outer circumferential surface of the catheter; a first reinforcing member having a shape of coil, provided outside the inner layer member, between the inner circumferential surface and the outer circumferential surface; and a second reinforcing member having a shape of braid, provided outside the first reinforcing member, between the inner circumferential surface and the outer circumferential surface. According to this technique, rigidity, pushability, torque transmission performance, and kink resistance of the catheter can be ensured while the thickness of the catheter is kept small.
    Type: Application
    Filed: June 25, 2018
    Publication date: July 9, 2020
    Inventor: Kuniaki Matsumoto
  • Patent number: 10524940
    Abstract: Provided is a stent having a novel structure, the stem simultaneously having both the stability of shape against the action of external force, such as compression force, tensile force, or torsional force, and high flexibility in the direction of twisting of the stem. Connection groups are provided at three or more positions set at circumferentially equally-spaced intervals, the connection groups each including connection sections which are disposed circumferentially close to each other between axially adjacent tubular divided bodies. The connection groups on both sides axially of each of the tubular divided bodies are provided at positions circumferentially offset from each other while at least one turning portion is present between the connection groups.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: January 7, 2020
    Assignees: TOKAI UNIVERSITY EDUCATIONAL SYSTEM, NIPRO CORPORATION
    Inventors: Yuji Ikari, Kuniaki Matsumoto
  • Publication number: 20190097486
    Abstract: A motor unit includes a stator including a coil formed from a wound winding that is configured by a conductive member including an insulating covering layer on the surface of the conductive member, a rotor that rotates under the influence of a rotating magnetic field generated by the stator, and a centerpiece that supports the stator and is formed with a centerpiece-side winding insertion hole through which the winding is inserted. The motor unit also includes a circuit device and a potting section. The potting section is formed using potting material, and seals a gap formed between the centerpiece-side winding insertion hole and the winding by achieving a state in which a portion of the potting section is closely adhered to the covering layer of the winding.
    Type: Application
    Filed: March 6, 2017
    Publication date: March 28, 2019
    Inventors: Shinji IKEDA, Takumi NAGAYA, Tatsuya TAKAGI, Kuniaki MATSUMOTO, Kazuhiro HOSOTANI, Yutaro YAGI, Yoshihiko SUGA, Takuya MATSUMOTO, Shunichi HIRAOKA
  • Publication number: 20160106561
    Abstract: Provided is a stent having a novel structure, the stem simultaneously having both the stability of shape against the action of external force, such as compression force, tensile force, or torsional force, and high flexibility in the direction of twisting of the stem. Connection groups are provided at three or more positions set at circumferentially equally-spaced intervals, the connection groups each including connection sections which are disposed circumferentially close to each other between axially adjacent tubular divided bodies. The connection groups on both sides axially of each of the tubular divided bodies are provided at positions circumferentially offset from each other while at least one turning portion is present between the connection groups.
    Type: Application
    Filed: May 12, 2014
    Publication date: April 21, 2016
    Inventors: Yuji IKARI, Kuniaki MATSUMOTO
  • Patent number: 8641012
    Abstract: A medical connector of improved configuration. Annular grooves are formed in both inner and outer surfaces of an outer peripheral portion of an elastic valve element to form an annular constricted section. An outer peripheral side from the constricted section is made to serve as an annular fixation section. A valve receiving seat is formed at an inner peripheral edge of an aperture portion in a housing, and an annular ring is fixed to the aperture portion to sandwich and support the annular fixation section between the valve receiving seat and the annular ring. Engaging projections formed on mutually facing surfaces of the valve receiving seat and the annular ring are engaged with the annular grooves, and either the engaging projection and/or the engaging projection is divided in a circumferential direction to have a plurality of projection-divisions.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: February 4, 2014
    Assignee: Nipro Corporation
    Inventors: Kuniaki Matsumoto, Katsuhiro Hiejima, Ken Suzuki, Akihiko Ishizaki
  • Publication number: 20110233435
    Abstract: A medical connector of improved configuration. Annular grooves are formed in both inner and outer surfaces of an outer peripheral portion of an elastic valve element to form an annular constricted section. An outer peripheral side from the constricted section is made to serve as an annular fixation section. A valve receiving seat is formed at an inner peripheral edge of an aperture portion in a housing, and an annular ring is fixed to the aperture portion to sandwich and support the annular fixation section between the valve receiving seat and the annular ring. Engaging projections formed on mutually facing surfaces of the valve receiving seat and the annular ring are engaged with the annular grooves, and either the engaging projection and/or the engaging projection is divided in a circumferential direction to have a plurality of projection-divisions.
    Type: Application
    Filed: December 24, 2009
    Publication date: September 29, 2011
    Applicant: NIPRO CORPORATION
    Inventors: Kuniaki Matsumoto, Katsuhiro Hiejima, Ken Suzuki, Akihiko Ishizaki
  • Publication number: 20100264772
    Abstract: A direct current motor is provided that includes an armature core, a commutator, coils, positive brushes, and negative brushes. The armature core includes a stator. The stator has magnets the number of which is represented by P (where P is an even number greater than or equal to six). The coils are wound about the teeth by duplex wave winding. Alternatively, the coils are wound about the teeth such that each pair of coils that are spaced apart by 180° are connected common ones of the segments. Each of the positive brushes and the negative brushes has an angular width WB, at which it slides on the segments. When the angular width of the arrangement pitch of the segments is represented by WP (WP=360°/the number of the segments), and the angular width of the clearance between each pair of circumferentially adjacent segments is represented by WU, the angular width WB is set to satisfy the expression: WB?(4/P)×WP+WU.
    Type: Application
    Filed: April 16, 2010
    Publication date: October 21, 2010
    Applicant: ASMO CO., LTD.
    Inventors: Tomohiro AOYAMA, Kuniaki MATSUMOTO, Toshio YAMAMOTO
  • Publication number: 20090146525
    Abstract: A segment center line is defined for each segment. Each segment center line extends from the center in the circumferential direction of the radially outer end of the segment to the center in the circumferential direction of the radially inner end of the segment. A portion of each segment center line where there is the center in the circumferential direction of the radially inner end is inclined in a first circumferential direction relative to the radial line. A short-circuit member has a plurality of connection pieces. Each connection piece has an outer short-circuit end, an inner short-circuit end, and a coupling portion. Each coupling portion links the outer short-circuit end to the inner short-circuit end, which is shifted in a second circumferential direction from the outer short-circuit end.
    Type: Application
    Filed: February 11, 2008
    Publication date: June 11, 2009
    Applicant: Asmo Co., Ltd
    Inventors: Yoshiki Nakano, Kuniaki Matsumoto
  • Publication number: 20090066179
    Abstract: A slide surface of each segment defines a plane orthogonal to an axial direction of a direct current motor. A power supply brush is pressed against and contacted with the slide surface. The power supply brush includes a main brush and a sub-brush. The sub- brush has electrical resistance that is higher than that of the main brush. At least the main brush supplies an armature with power. The sub-brush is arranged more inward in the radial direction of the commutator than the main brush.
    Type: Application
    Filed: April 3, 2008
    Publication date: March 12, 2009
    Applicant: ASMO Co., Ltd.
    Inventors: Yoshiki NAKANO, Kuniaki MATSUMOTO
  • Publication number: 20080246360
    Abstract: A slide surface of each segment defines a plane orthogonal to an axial direction of a direct current motor. A power supply brush is pressed against and contacted with the slide surface. The power supply brush includes a main brush and a sub-brush. The sub-brush has electrical resistance that is higher than that of the main brush. At least the main brush supplies an armature with power. The sub-brush is arranged more inward in the radial direction of the commutator than the main brush.
    Type: Application
    Filed: June 24, 2008
    Publication date: October 9, 2008
    Applicant: ASMO Co., Ltd.
    Inventors: Yoshiki NAKANO, Kuniaki MATSUMOTO
  • Patent number: 5659734
    Abstract: On knowledge information processing and especially in a plan making system such as a system for generating schedule diagrams of trains and personnel, it becomes necessary to make or modify a plan by using a plurality of work stations when the plan becomes large-sized. At this time, the work stations are provided with equal plan making function. Thus, the work stations can divide planning responsibilities. Further, work stations are provided with priorities. Thus, management of competition among a plurality of work stations is facilitated and overhead caused by communication among a plurality of devices is reduced.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: August 19, 1997
    Assignees: Hitachi, Ltd., Hitachi Information and Control Systems, Inc.
    Inventors: Setsuo Tsuruta, Kiyomi Kishi, Kuniaki Matsumoto
  • Patent number: 5546572
    Abstract: A retrieving key representing position information is used to retrieve image information containing the retrieving key information at a high speed and high precision. First a retrieving key is inputted to display retrieval information. The retrieving key is used to retrieve an image having a large size relative to a geometric distortion error, and the longitude/latitude conversion coefficients of the retrieved image are corrected. By using the corrected longitude/latitude conversion coefficients, an image having a small size relative to the geometric distortion error is retrieved, and the retrieved image is subject to distortion correction and image magnification.
    Type: Grant
    Filed: August 25, 1992
    Date of Patent: August 13, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Youichi Seto, Masahiro Kikuchi, Takatoshi Kodaira, Shu Tezuka, Fuminobu Komura, Kuniaki Matsumoto
  • Patent number: 5526516
    Abstract: The present invention enables change, inactivation and deletion of the value and content of the knowledge data stored for problem solution, by creating the assimilation proposal to assimilate the said knowledge based on the knowledge data stored in advance to solve object problems, by evaluating the created assimilation plan according to the evaluation standards stored in advance, by determining the adequate assimilation plan based on the evaluation result, and by changing the knowledge data stored in advance according to the adequate assimilation plan; thereby improving the solution precision and ensuring satisfactory assimilation precision within reasonably short time.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: June 11, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Setsuo Tsuruta, Toshihiro Eguchi, Kuniaki Matsumoto, Toshiya Ooshima
  • Patent number: 5299287
    Abstract: A problem solving system including apparatus for representing a relationship between a goal including subgoals and its lower level subgoals and for achieving the goal as a strategy of a first kind. Apparatus is provided for repetitively dividing a goal including subgoals into its lower level subgoals according to the relationship between the goal and the subgoals. A strategy of a second kind is used to specify the functions to be performed by the apparatus to achieve the lowest subgoal. Apparatus is also provided for simplifying and solving a complicated problem by executing the goal including subgoals by use of the strategies of the first and second kinds.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: March 29, 1994
    Assignees: Hitachi, Ltd., Hitachi Control Systems, Inc., Hitachi Microcomputer Engineering Ltd.
    Inventors: Setsuo Tsuruta, Kiyomi Kishi, Kuniaki Matsumoto, Shigenobu Yanai, Kiminori Nakamura