Patents by Inventor Ken Asakura
Ken Asakura 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).
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Publication number: 20230049821Abstract: The present invention includes: a cell holding body that holds a measurement cell housing a measurement sample and a dispersion medium; a cover attached to the cell holding body so as to cover the measurement cell; a rotation section that rotates the cell holding body and applies centrifugal force to the measurement cell; a light source that is provided on one side of a rotation passage region of the measurement cell and irradiates the cell with light; a photodetector that is provided on another side of the rotation passage region of the measurement cell and detects light transmitted through the cell; and a particle diameter distribution arithmetic section that acquires a light intensity signal from the photodetector and calculates a particle diameter distribution. The rotation passage region of the cover is located inside an optical path of light passing between the light source and the photodetector.Type: ApplicationFiled: December 4, 2020Publication date: February 16, 2023Inventors: Tetsuji YAMAGUCHI, Yuki SHIMIZU, Ken ASAKURA
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Publication number: 20220184639Abstract: In a cell washing centrifuge for washing living cells such as blood cells, control of the remaining amount of a supernatant according to the related art greatly depends on controlling the rotation speed of a motor, and thus a highly accurate motor control part is required to prevent overshooting or the like. In place of the related art, an easy control method is required.Type: ApplicationFiled: April 24, 2020Publication date: June 16, 2022Applicant: Eppendorf Himac Technologies Co., Ltd.Inventors: Masayuki Shiina, Hidetaka Osawa, Ken Asakura, Hiroshi Hayasaka
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Publication number: 20220011213Abstract: A particle size distribution measurement device includes a cell holding body 31 that holds a measurement cell 2 containing a measurement sample and a dispersion medium and a reference cell 6 containing a reference sample and is rotated by a motor 322, and a cell discrimination mechanism 7 that discriminates the cells 2, 6 passing through a predetermined rotation position by using a magnetic force or electrostatic capacitance.Type: ApplicationFiled: October 29, 2019Publication date: January 13, 2022Inventors: Tetsuji YAMAGUCHI, Hitoshi WATANABE, Hidetaka OSAWA, Ken ASAKURA, Kenichi NEMOTO
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Patent number: 9648763Abstract: An electronic appliance unit (10), which is installed at an incline, includes: a case (12) provided with an opening (14) that permits access to the interior of the case; and a terminal block (20) that faces the opening. The terminal block (20) has a terminal block-side fall restraint portion (24) that extends upward from the lower side of the opening in a direction of the inclination to restrain foreign objects (50) from falling from the terminal block.Type: GrantFiled: October 13, 2011Date of Patent: May 9, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Ken Asakura
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Patent number: 9072189Abstract: A substrate unit includes a conductive case, an insulating case arranged in the conductive case, a first screw member having conductivity, arranged in the conductive case and fixing the insulating case to an inner wall surface of the conductive case, a circuit substrate provided opposite to the inner wall surface with respect to the insulating case and fixed to the insulating case, and a second screw member having conductivity and fixing the circuit substrate to the insulating case. The first screw member and the second screw member are screwed in toward the inner wall surface. The first screw member and the second screw member are spaced from each other. The first screw member and the second screw member are connected to each other with a connecting member having conductivity.Type: GrantFiled: March 16, 2011Date of Patent: June 30, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hajime Kosugi, Ken Asakura
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Patent number: 8875825Abstract: A power control unit that controls a rotary electric machine that drives a vehicle, and that is mounted onto a motor case in which the rotary electric machine is housed, includes a fixed base that is made of resin; a cooler that is arranged on the fixed base and that includes a power module; and a control substrate that is arranged on the cooler. The fixed base inhibits conduction of heat from the motor case to the power control unit.Type: GrantFiled: February 8, 2012Date of Patent: November 4, 2014Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.Inventors: Ken Asakura, Yutaka Hotta, Tatsuyuki Uechi
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Patent number: 8789578Abstract: A cooling structure for an electric device includes a plurality of cooling medium paths (724) through which a cooling medium for an inverter flows, an inlet (722) into which the cooling medium to be supplied to the plurality of cooling medium paths (724) flows, and a wall (726) provided between the inlet (722) and the plurality of cooling medium paths (724) to promote distribution of the cooling medium to each of the cooling medium paths (724).Type: GrantFiled: October 26, 2006Date of Patent: July 29, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Ken Asakura
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Publication number: 20140084719Abstract: A power control unit that controls a rotary electric machine that drives a vehicle, and that is mounted onto a motor case in which the rotary electric machine is housed, includes a fixed base that is made of resin; a cooler that is arranged on the fixed base and that includes a power module; and a control substrate that is arranged on the cooler. The fixed base inhibits conduction of heat from the motor case to the power control unit.Type: ApplicationFiled: February 8, 2012Publication date: March 27, 2014Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ken Asakura, Yutaka Hotta, Tatsuyuki Uechi
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Publication number: 20130316889Abstract: A sample container includes a body part which can accommodate a sample and a cap part that can be mounted on the non-circular body part. On the cap part, a neck support member is set for filling a space between an outer lid and a holding hole of a rotor body. The neck support member is configured to be able to be attached to and removed from the outer lid and to be able to relatively rotate with respect to the outer lid. By mounting the outer lid on the body part, the neck support member can also be mounted at the same time. The neck support member is arranged so as to be interposed between the outer lid and shoulder parts of the body part in an axial direction. The neck support member has a lower surface formed so as to correspond to the shape of the shoulder parts.Type: ApplicationFiled: May 23, 2013Publication date: November 28, 2013Applicant: HITACHI KOKI CO., LTD.Inventors: Ken ASAKURA, Kenichi NEMOTO, Yoshimitsu KITAZAWA
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Publication number: 20130308257Abstract: A substrate unit includes a conductive case, an insulating case arranged in the conductive case, a first screw member having conductivity, arranged in the conductive case and fixing the insulating case to an inner wall surface of the conductive case, a circuit substrate provided opposite to the inner wall surface with respect to the insulating case and fixed to the insulating case, and a second screw member having conductivity and fixing the circuit substrate to the insulating case. The first screw member and the second screw member are screwed in toward the inner wall surface. The first screw member and the second screw member are spaced from each other. The first screw member and the second screw member are connected to each other with a connecting member having conductivity.Type: ApplicationFiled: March 16, 2011Publication date: November 21, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hajime Kosugi, Ken Asakura
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Patent number: 8561676Abstract: A cooler (20) arranged in a PCU (12) is provided with a bottom plate (22), a top plate (28) and a shell (30) arranged between the bottom plate and the top plate. The shell (30) is provided with an inflow side pipe (32) and an outflow side pipe (34) for making a cooling medium flow inside. The bottom plate (22) is provided with fixing holes (36, 38) for fixing the cooler (20) at a suitable position in the PCU (12). Between the fixing hole (38) and the outflow side pipe (34), a notched section (42) is arranged on the bottom plate (22) to partially reduce rigidity so that the shell (30) does not break when an impulsive power is applied to the cooler (20). A notched section (40) may be arranged between the part where the fixing hole (36) is arranged and the inflow side pipe (32).Type: GrantFiled: August 6, 2008Date of Patent: October 22, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventor: Ken Asakura
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Publication number: 20130264866Abstract: An electronic appliance unit (10), which is installed at an incline, includes: a case (12) provided with an opening (14) that permits access to the interior of the case; and a terminal block (20) that faces the opening. The terminal block (20) has a terminal block-side fall restraint portion (24) that extends upward from the lower side of the opening in a direction of the inclination to restrain foreign objects (50) from falling from the terminal block.Type: ApplicationFiled: October 13, 2011Publication date: October 10, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Ken Asakura
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Patent number: 8461954Abstract: A reactor-securing structure includes, one end of a first-side stay and one end of a second-side stay that are connected to portions of a reactor which are separated from each other at the two sides of a coil axial direction. The other end of the first-side stay and the other end of the second-side stay are fastened in states overlapping the inverter case. A first-side overlapping portion is formed by having the other end of the first-side stay overlap the inverter case, and a second-side overlapping portion is formed by having the other end of the second-side stay overlap the inverter case. A portion of the first-side overlapping portion and a portion of the second-side overlapping portion, when seen from a plan view, are provided in the same range relating to the length direction of the I-shaped section forming the reactor.Type: GrantFiled: November 26, 2009Date of Patent: June 11, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventor: Ken Asakura
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Patent number: 8297999Abstract: A connector structure of electrical equipment is for electrically connecting a PCU with a wire, including a waterproof cover having a projection formed at a position adjacent to a recess, a connector provided on a bottom surface of the recess and electrically connected to a control board provided in a casing, and a connector to be fitted to connector from outside of the casing. Connector is formed to include a fitting member to be fitted in connector, and a turn lever, pivotally supported to be rotatable about the fitting member and having a projection to be aligned with the projection when the fitting member is correctly fit in the connector.Type: GrantFiled: June 4, 2008Date of Patent: October 30, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Ken Asakura, Shuichi Iwata
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Publication number: 20120223794Abstract: A reactor-securing structure includes, one end of a first-side stay and one end of a second-side stay that are connected to portions of a reactor which are separated from each other at the two sides of a coil axial direction. The other end of the first-side stay and the other end of the second-side stay are fastened in states overlapping the inverter case. A first-side overlapping portion is formed by having the other end of the first-side stay overlap the inverter case, and a second-side overlapping portion is formed by having the other end of the second-side stay overlap the inverter case, A portion of the first-side overlapping portion and a portion of the second-side overlapping portion, when seen from a plan view, are provided in the same range relating to the length direction of the I-shaped section forming the reactor.Type: ApplicationFiled: November 26, 2009Publication date: September 6, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Ken Asakura
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Patent number: 8066518Abstract: A waterproof connector is mounted on a circuit board fixed within an enclosure. The waterproof connector is connectable with a mating connector through a connector passageway formed in the enclosure. The waterproof connector includes a contact electrically connectable with the mating connector, an insulating housing holding the contact, a first seal disposed on a circumference of the housing, and a faceplate into which the insulating housing is inserted. The having a cylindrical section and a brim section. The cylindrical section includes a first and second open end with the brim section formed at the first open end and spreading outwards. A second seal is interposed between the first open end and the insulating housing.Type: GrantFiled: December 22, 2009Date of Patent: November 29, 2011Assignees: Toyota Jidosha Kabushiki Kaisha, Tyco Electronics Japan G.K.Inventors: Hidetaka Homme, Ken Asakura, Shuichi Iwata
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Publication number: 20100206517Abstract: A cooler (20) arranged in a PCU (12) is provided with a bottom plate (22), a top plate (28) and a shell (30) arranged between the bottom plate and the top plate. The shell (30) is provided with an inflow side pipe (32) and an outflow side pipe (34) for making a cooling medium flow inside. The bottom plate (22) is provided with fixing holes (36, 38) for fixing the cooler (20) at a suitable position in the PCU (12). Between the fixing hole (38) and the outflow side pipe (34), a notched section (42) is arranged on the bottom plate (22) to partially reduce rigidity so that the shell (30) does not break when an impulsive power is applied to the cooler (20). A notched section (40) may be arranged between the part where the fixing hole (36) is arranged and the inflow side pipe (32).Type: ApplicationFiled: August 6, 2008Publication date: August 19, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Ken Asakura
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Publication number: 20100184322Abstract: A connector structure of electrical equipment is for electrically connecting a PCU with a wire, including a waterproof cover having a projection formed at a position adjacent to a recess, a connector provided on a bottom surface of the recess and electrically connected to a control board provided in a casing, and a connector to be fitted to connector from outside of the casing. Connector is formed to include a fitting member to be fitted in connector, and a turn lever, pivotally supported to be rotatable about the fitting member and having a projection to be aligned with the projection when the fitting member is correctly fit in the connector.Type: ApplicationFiled: June 4, 2008Publication date: July 22, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ken Asakura, Shuichi Iwata
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Publication number: 20100099279Abstract: A waterproof connector is mounted on a circuit board fixed within an enclosure. The waterproof connector is connectable with a mating connector through a connector passageway formed in the enclosure. The waterproof connector includes a contact electrically connectable with the mating connector, an insulating housing holding the contact, a first seal disposed on a circumference of the housing, and a faceplate into which the insulating housing is inserted. The having a cylindrical section and a brim section. The cylindrical section includes a first and second open end with the brim section formed at the first open end and spreading outwards. A second seal is interposed between the first open end and the insulating housing.Type: ApplicationFiled: December 22, 2009Publication date: April 22, 2010Inventors: Hidetaka Homme, Ken Asakura, Shuichi Iwata
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Publication number: 20090114371Abstract: A cooling structure for an electric device includes an inverter, a plurality of cooling medium paths (724) through which a cooling medium for the inverter flows, and an inlet (722) into which the cooling medium to be supplied to the plurality of cooling medium paths (724) flows. The plurality of cooling medium paths (724) extend in a direction crossing the aligning direction of the inlet (722) and the plurality of cooling medium paths (724). The cooling structure for an electric device further includes a cooling medium distribution mechanism for promoting distribution of the cooling medium to each of cooling medium paths (724) by suppressing the flow of the cooling medium. The cooling medium distribution mechanism has a flow rate suppression function suppressing the flow rate of the cooling medium flowing through at least one cooling medium path (724). This flow rate suppression function is realized by a wall (726A, 726B, 726C) provided at a cooling medium path (724).Type: ApplicationFiled: October 26, 2006Publication date: May 7, 2009Applicant: Toyota Jidosha kabushiki KaishaInventor: Ken Asakura