Patents by Inventor Masahiro Akiyama
Masahiro Akiyama 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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Patent number: 12013056Abstract: A clamp includes a fixed portion on which a medical tube is placed, a movable portion that is provided above the fixed portion to face the fixed portion, and a closing portion that presses and closes the medical tube when the movable portion is pressed toward the fixed portion. The closing portion includes a presser that protrudes from the movable portion toward the fixed portion and presses the medical tube, a pair of sidewalls that extends, like a wall, from both sides of the fixed portion and prevents the medical tube from being shifted laterally, and a guide structure that allows the presser to be guided between the sidewalls.Type: GrantFiled: October 20, 2022Date of Patent: June 18, 2024Assignee: TERUMO KABUSHIKI KAISHAInventors: Satoshi Kawaguchi, Masahiro Akiyama
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Publication number: 20230327506Abstract: A surface magnet rotor includes a shaft member extending along a rotational axis, and a magnet portion formed around the shaft member and forming opposite magnetic poles arranged along a circumferential direction. A cross-section of the shaft member includes an intermediate line extending from the rotational axis to a center point in the circumferential direction between a d-axis and a q-axis of the magnet portion. In the cross-section, a first cross-sectional area delimited by the d-axis and the intermediate line is different from a second cross-sectional area delimited by the q-axis and the intermediate line.Type: ApplicationFiled: June 16, 2023Publication date: October 12, 2023Inventors: Koji YAMAGUCHI, Takehiro JIKUMARU, Natsuki YONEYAMA, Seiichiro YOSHINAGA, Yosuke AKAMATSU, Tatsuro YAMADA, Tomoya KAKUTA, Masahiro AKIYAMA
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Publication number: 20230110735Abstract: A centrifugal blower includes a motor part having a rotor provided on a rotating shaft of an impeller, a coil provided around the rotor, and a motor housing that accommodates a coil, an inverter part having an inverter unit that supplies drive power to the motor part, and an inverter housing connected to the motor housing and configured to accommodate the inverter unit, and a cooling fan that is provided on the rotating shaft, rotates with the impeller and allows cooling air to flow through the inverter housing and the motor housing in order, wherein the inverter unit is disposed to be arranged with respect to the coil in a direction of a rotation axis of the rotor.Type: ApplicationFiled: April 15, 2020Publication date: April 13, 2023Applicant: IHI CorporationInventors: Masahiro AKIYAMA, Yosuke AKAMATSU
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Publication number: 20230037368Abstract: A clamp includes a fixed portion including an upper portion on which a medical tube is to be placed; a movable portion that faces the fixed portion; a curved portion that connects the fixed portion and the movable portion and is configured to elastically deform; a pressing portion that protrudes from the movable portion toward the fixed portion, and presses and closes the medical tube; a pair of sidewalls that protrude from both side portions of the fixed portion in a wall shape, respectively, and are configured to prevent lateral displacement of the medical tube; and a standing portion that faces the curved portion. The standing portion is provided with a lateral displacement prevention mechanism that prevents sideward deformation of the movable portion when the movable portion is pressed.Type: ApplicationFiled: October 20, 2022Publication date: February 9, 2023Inventors: Satoshi KAWAGUCHI, Masahiro AKIYAMA
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Publication number: 20230037423Abstract: A clamp includes a fixed portion on which a medical tube is placed, a movable portion that is provided above the fixed portion to face the fixed portion, and a closing portion that presses and closes the medical tube when the movable portion is pressed toward the fixed portion. The closing portion includes a presser that protrudes from the movable portion toward the fixed portion and presses the medical tube, a pair of sidewalls that extends, like a wall, from both sides of the fixed portion and prevents the medical tube from being shifted laterally, and a guide structure that allows the presser to be guided between the sidewalls.Type: ApplicationFiled: October 20, 2022Publication date: February 9, 2023Inventors: Satoshi KAWAGUCHI, Masahiro AKIYAMA
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Patent number: 10517519Abstract: A blood sampling device (10) configuring a blood bag system (12) includes: a hollow needle (80) that can penetrate through a rubber plug (202) of a blood sampling tube (200) inserted into a blood sampling holder (78); a hub (76) that includes a needle supporting unit (90) for supporting a base end side of the hollow needle (80) and to which the blood sampling holder (78) is rotatably attached; a needle cover (82) made of rubber that is externally fitted to the needle supporting unit (90) while covering a tip side of the hollow needle (80); and a cap (84) arranged on the needle supporting unit (90) in such a manner that the cap (84) can come into contact with the needle cover (82) and is independent of the blood sampling holder (78).Type: GrantFiled: August 31, 2012Date of Patent: December 31, 2019Assignee: Terumo Kabushiki KaishaInventors: Masahiro Akiyama, Aya Hayakawa
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Patent number: 9903388Abstract: A centrifugal pump includes an impeller rotatably disposed in a volute case for forcing a fluid to flow along a volute internal flow channel formed in the volute case, and first to fourth flow-channel recessed portions opening to the volute internal flow channel. The first and fourth flow-channel recessed portions are formed so as to be recessed in a direction substantially orthogonal to a direction of flow of the fluid. In a self-priming operation, the fluid is introduced into the first and fourth recessed portions whereupon the prime fluid is stirred within internal spaces of the first and second flow-channel recessed portions.Type: GrantFiled: July 28, 2015Date of Patent: February 27, 2018Assignee: HONDA MOTOR CO., LTD.Inventors: Kouki Tsuruda, Masahiro Akiyama, Kaku Okabe
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Patent number: 9382680Abstract: An auger snow-removing machine includes a forward rotation shaft and a reverse rotation shaft disposed on the same axis and aligned in a width direction of an auger housing within the auger housing, and a transmission disposed inside the auger housing such that the forward rotation shaft and the reverse rotation shaft are rotated concurrently in opposite directions by a driving force transmitted from the transmission. A case of the transmission is divided into a front case member and a rear case member at a position behind a reverse rotation drive shaft extending in the width direction of the auger housing. The front case member has a first gear unit assembled therein, and the rear case member has a second gear unit assembled therein. The first and second gear units are assembled together when the front and rear case members are assembled together.Type: GrantFiled: July 31, 2014Date of Patent: July 5, 2016Assignee: HONDA MOTOR CO., LTD.Inventors: Atsushi Yamada, Fumiyoshi Kanbara, Masahiro Akiyama
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Publication number: 20160113676Abstract: A thrombus aspiration catheter is disclosed which can shear a thrombus and efficiently aspirate the thrombus. When the pressure of the inside of an inner tube is made negative, an outer tube is rotated around an axis relative to the inner tube, and an inner opening portion and an outer opening portion are positioned at an open position at which the inner opening portion and the outer opening portion overlap each other, a thrombus enters the inside of the inner tube through the inner opening portion and the outer opening portion. When the outer tube is further rotated up to a closed position at which the whole outer opening portion does not overlap the inner opening portion, the thrombus is sheared by an edge portion of the inner opening portion and an edge portion of the outer opening portion and into the inside of the inner tube.Type: ApplicationFiled: October 27, 2015Publication date: April 28, 2016Applicant: TERUMO KABUSHIKI KAISHAInventors: Yuichi TADA, Masahiro AKIYAMA, Yutaka TANO, Naoko TANAKA, Takehiro URA, Yuji ONIMURA
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Publication number: 20160106894Abstract: The blood bag system (100) includes a first bag (101) for storing blood sampled from a donor, a first tube (106a) for transferring blood from the first bag (101), a filter (21) for reduced blood transferred from the first tube (106a), a second tube (106b) for transferring filtered blood, and a second bag (102) for storing filtered blood transferred from the second tube (106b). The first bag (101) contains a predetermined amount of air satisfying an equation: (V1+V2+V3)<(amount of air)<(V1+V2+V3+V4+V5), where V1 is a volume in the first tube, V2 is a volume of the blood inflow chamber, V3 is a void volume of the filter, V4 is a volume of the blood outflow chamber, and V5 is a volume in the second tube.Type: ApplicationFiled: April 1, 2013Publication date: April 21, 2016Applicant: TERUMO KABUSHIKI KAISHAInventors: Kaoru HOSOE, Masahiro AKIYAMA
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Publication number: 20160032940Abstract: A centrifugal pump includes an impeller rotatably disposed in a volute case for forcing a fluid to flow along a volute internal flow channel formed in the volute case, and first to fourth flow-channel recessed portions opening to the volute internal flow channel. The first and fourth flow-channel recessed portions are formed so as to be recessed in a direction substantially orthogonal to a direction of flow of the fluid. In a self-priming operation, the fluid is introduced into the first and fourth recessed portions whereupon the prime fluid is stirred within internal spaces of the first and second flow-channel recessed portions.Type: ApplicationFiled: July 28, 2015Publication date: February 4, 2016Inventors: Kouki Tsuruda, Masahiro Akiyama, Kaku Okabe
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Publication number: 20150216465Abstract: A blood sampling device (10) configuring a blood bag system (12) includes: a hollow needle (80) that can penetrate through a rubber plug (202) of a blood sampling tube (200) inserted into a blood sampling holder (78); a hub (76) that includes a needle supporting unit (90) for supporting a base end side of the hollow needle (80) and to which the blood sampling holder (78) is rotatably attached; a needle cover (82) made of rubber that is externally fitted to the needle supporting unit (90) while covering a tip side of the hollow needle (80); and a cap (84) arranged on the needle supporting unit (90) in such a manner that the cap (84) can come into contact with the needle cover (82) and is independent of the blood sampling holder (78).Type: ApplicationFiled: August 31, 2012Publication date: August 6, 2015Applicant: TERUMO KABUSHIKI KAISHAInventors: Masahiro Akiyama, Aya Hayakawa
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Publication number: 20150033591Abstract: An auger snow-removing machine includes a forward rotation shaft and a reverse rotation shaft disposed on the same axis and aligned in a width direction of an auger housing within the auger housing, and a transmission disposed inside the auger housing such that the forward rotation shaft and the reverse rotation shaft are rotated concurrently in opposite directions by a driving force transmitted from the transmission. A case of the transmission is divided into a front case member and a rear case member at a position behind a reverse rotation drive shaft extending in the width direction of the auger housing. The front case member has a first gear unit assembled therein, and the rear case member has a second gear unit assembled therein. The first and second gear units are assembled together when the front and rear case members are assembled together.Type: ApplicationFiled: July 31, 2014Publication date: February 5, 2015Inventors: Atsushi Yamada, Fumiyoshi Kanbara, Masahiro Akiyama
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Publication number: 20140228709Abstract: A test blood container (1) includes a container body part (2) including an internal space (3) configured to store initial flow blood used for a test, a blood inflow port (5) configured to let the initial flow blood inflow, a blood outflow port (6) configured to let the stored initial flow blood outflow, an exhausting part (7) including a hydrophobic bacteria-impermeable filter (12) and configured to exhaust air inside the internal space (3), and a blocking part (8) arranged to the exhausting part (7) and configured to make it possible to block introduction of air into the internal space (3).Type: ApplicationFiled: March 13, 2013Publication date: August 14, 2014Applicant: TERUMO KABUSHIKI KAISHAInventors: Aya Hayakawa, Masahiro Akiyama
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Publication number: 20140221873Abstract: A blood sample container (1A) according to the present invention includes: a container body section (2) having an internal space (3) for storing initial flow blood to be used for testing; a blood inflow port (5) that allows the initial flow blood to flow in; a blood outflow port (6) that allows the initial flow blood to flow out; and an exhaust section (7) having a hydrophilic and bacteria-impermeable filter (12) that allows the air in the internal space (3) to be discharged, the exhaust section (7) being positioned at an upper end of the container body section (2) when the container body (1A) is used in a manner such that the blood outflow port (6) faces in a vertical direction and having a small-diameter tubular passage (11) that allows the air in the internal space (3) to be discharged by a predetermined amount of the initial flow blood that has flown into the passage (11).Type: ApplicationFiled: March 13, 2013Publication date: August 7, 2014Applicant: Terumo Kabushiki KaishaInventors: Aya Hayakawa, Masahiro Akiyama
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Publication number: 20140221793Abstract: Provided is a container for testing blood (1A) including: a main container body (2) having an internal space (3) that stores an initial blood flow; a blood inflow port (5) that allows the initial blood flow to inflow; a blood outflow port (6) that allows the stored initial blood flow to outflow; a blood drawing part (21) that is connected to the blood outflow port (6) and allows the initial blood flow to be drawn; and a first discharge part (7) that has a hydrophilic bacteria-impermeable first filter (12) and discharges air in the internal space, wherein the first discharge part (7) and the blood outflow port (6) are disposed at an end part of the main container body (2) on the same side, and the blood drawing part (21) connected to the blood outflow port (6) includes: a holder (22) whose one end is provided with the needle assembly (23) and whose other end has an opening (22c) in which a testing instrument storing the initial blood flow is inserted.Type: ApplicationFiled: March 13, 2013Publication date: August 7, 2014Inventors: Aya Hayakawa, Masahiro Akiyama
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Patent number: 8404786Abstract: A process for producing a polymer includes mixing (A) a polysiloxane compound and (B) a polycarbosilane compound in the presence of a catalyst, water, and an organic solvent, and heating the mixture.Type: GrantFiled: March 4, 2010Date of Patent: March 26, 2013Assignee: JSR CorporationInventors: Masahiro Akiyama, Takahiko Kurosawa, Hisashi Nakagawa, Atsushi Shiota
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Patent number: 8268403Abstract: A method of forming an organic silica film includes forming a coating including a silicon compound having an —Si—O—Si— structure and an —Si—CH2—Si— structure on a substrate, heating the coating, and curing the coating by applying ultraviolet radiation.Type: GrantFiled: April 28, 2005Date of Patent: September 18, 2012Assignee: JSR CorporationInventors: Masahiro Akiyama, Hisashi Nakagawa, Tatsuya Yamanaka, Atsushi Shiota, Takahiko Kurosawa
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Publication number: 20110225056Abstract: According to one embodiment, a checkout apparatus includes an apparatus body, a monitor, a rotation mechanism, a lock mechanism, a notification unit, and a control unit. The apparatus body can switch a mode for checkout processing between a cashier mode in which a cashier operates the apparatus and a self-service mode in which a customer operates the apparatus. The monitor is provided on the apparatus body and displays a status of the checkout processing. The rotation mechanism rotates the apparatus body. The lock mechanism locks the rotation of the rotation mechanism at least at two positions. The notification unit causes the monitor to display guidance showing a procedure for mode switching, including locking and unlocking by the lock mechanism. The control unit switches checkout processing modes in response to that the rotation of the rotation mechanism is stopped at one of the positions with the locking by the lock mechanism.Type: ApplicationFiled: March 9, 2011Publication date: September 15, 2011Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventor: Masahiro Akiyama
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Patent number: 8017700Abstract: A polycarbosilane has a main chain in which silicon atoms and carbon atoms are alternately repeated, and includes a structural unit shown by the following general formula (1), a structural unit shown by the following general formula (2), a structural unit shown by the following general formula (3), and a structural unit shown by the following general formula (4).Type: GrantFiled: October 24, 2006Date of Patent: September 13, 2011Assignee: JSR CorporationInventors: Hisashi Nakagawa, Masahiro Akiyama, Tsuyoshi Furukawa, Naohisa Tokushige