Patents by Inventor Akihiro Takahashi
Akihiro Takahashi 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: 20240108379Abstract: Provided is a medical device capable of easily changing a position of the device inside a biological lumen and effectively removing a cut object. The medical device for removing the object in the biological lumen has a drive shaft, a cutting portion, a first housing that accommodates the drive shaft to be rotatable, a second housing that is rotatable with respect to the first housing, and a support portion that supports the first housing and the second housing. The second housing and the support portion relatively move along an axis to restrict relative rotation of the first housing and the second housing. The support portion supports the second housing to be rotatable around the axis.Type: ApplicationFiled: December 15, 2023Publication date: April 4, 2024Applicant: TERUMO KABUSHIKI KAISHAInventors: Mizuho SHIRAISHI, Yuichi TADA, Akihiro TAKAHASHI
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Publication number: 20240091905Abstract: An abrasive slurry regeneration method includes: collecting at least a used abrasive slurry containing an abrasive component and a constituent component of a polishing target object discharged from a polishing machine; inactivating a metal ion dissolved in the used abrasive slurry; dispersing the abrasive component and the constituent component of the polishing target object contained in the used abrasive slurry; separating the dispersed abrasive component and constituent component of the polishing target object to remove the constituent component of the polishing target object; and preparing a regenerated abrasive slurry containing the abrasive component.Type: ApplicationFiled: August 24, 2023Publication date: March 21, 2024Inventors: Shin NAKAYAMA, Atsushi Takahashi, Kazufumi Yamazaki, Akihiro Maezawa, Sadatoshi Nishibuchi, Kenichi Tabata
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Patent number: 11877768Abstract: Provided is a medical device capable of easily changing a position of the device inside a biological lumen and effectively removing a cut object. The medical device for removing the object in the biological lumen has a drive shaft, a cutting portion, a first housing that accommodates the drive shaft to be rotatable, a second housing that is rotatable with respect to the first housing, and a support portion that supports the first housing and the second housing. The second housing and the support portion relatively move along an axis to restrict relative rotation of the first housing and the second housing. The support portion supports the second housing to be rotatable around the axis, and restricts a relative movement and a relative inclination of the second housing and the support portion in a direction intersecting with the axis.Type: GrantFiled: September 17, 2020Date of Patent: January 23, 2024Assignee: TERUMO KABUSHIKI KAISHAInventors: Mizuho Shiraishi, Yuichi Tada, Akihiro Takahashi
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Patent number: 11812989Abstract: A medical device for removing an object in a body lumen includes a catheter and a drive device. The drive device includes a hub support portion with which a hub portion of the catheter is interlocked. The hub portion has first and second engagement portions interlocked with the hub support portion. The hub support portion includes a rotation blocking portion that is engaged with the first engagement portion to block the hub portion from rotating with respect to the hub support portion, a movement blocking portion that is engaged with the second engagement portion to block movement of the hub portion with respect to the hub support portion in an axial direction, and a releasing portion that releases a state in which a rotation of the hub portion is blocked while maintaining a state in which movement of the hub portion is blocked.Type: GrantFiled: August 19, 2020Date of Patent: November 14, 2023Assignee: TERUMO KABUSHIKI KAISHAInventors: Mizuho Shiraishi, Akihiro Takahashi
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Publication number: 20230279951Abstract: A sealing device provides consistent sealing performance in applications where a rotating shaft rotates at high speed. The sealing device 10 seals an annular gap between a rotating shaft 50 and a housing 60, and includes a case 100 fixedly attached to the shaft hole, and a seal ring 200 held in the case 100 such as to be restricted from moving in a rotating direction, and to separate a high-pressure side (H) where pressure rises during use of the sealing device from an opposite low-pressure side (L). The seal ring 200 is disposed such that there is an annular gap between itself and an outer circumferential surface of the rotating shaft 50, and the annular gap is dimensioned such that a fluid pressure of a sealed fluid flowing from the high-pressure side (H) into the low-pressure side (L) causes the Lomakin effect.Type: ApplicationFiled: August 19, 2021Publication date: September 7, 2023Inventors: Tomohiro UCHIYAMA, Akihiro TAKAHASHI, Yuki MASUMI
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Publication number: 20230279950Abstract: A mechanical seal includes: a mating ring; a seal ring; a casing which includes a pop-out regulation portion supporting the seal ring not to be rotatable and to be axially movable and coming into contact with the seal ring to regulate the seal ring from popping out toward the mating ring; an urging member disposed between the seal ring and a back wall of the casing axially overlapping with the seal ring and axially urges the seal ring toward the mating ring; and an annular secondary seal sealing a gap between the casing and the seal ring. The casing includes a regulation wall which regulates the secondary seal from moving toward the side opposite to the mating ring and an axial dimension between the seal ring and the regulation wall is equal to or less than a half of an axial dimension of the secondary seal while the seal ring and the pop-out regulation portion are in contact with each other.Type: ApplicationFiled: June 14, 2021Publication date: September 7, 2023Inventors: Yuki MASUMI, Akihiro TAKAHASHI, Tomohiro UCHIYAMA
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Patent number: 11733268Abstract: A probe pin inspection mechanism a includes a base, a pair of movable bodies, a pair of movable-body elastic bodies, and a conductor. The movable bodies are supported by the base to be movable in a first direction from a first position with respect to the base, and respectively include ends and terminals electrically connected to the respective ends. The movable-body elastic bodies elastically press the movable bodies in a second direction. The conductor is supported by the base and electrically connects the terminals of the movable bodies by making contact with the terminals. The state between the terminals and the conductor is switched, according to the position of the movable bodies, between a conductive state in which the terminals and the conductor are in contact with each other and a non-conductive state in which the terminals and the conductor are separated from each other.Type: GrantFiled: December 17, 2018Date of Patent: August 22, 2023Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Shingo Sato, Akihiro Takahashi
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Publication number: 20230232830Abstract: The present invention aims to provide a method for reducing or preventing an abiotic stress on a plant. A method for reducing or preventing an influence of an abiotic stress on a plant, comprising treating a plant exposed or not to the abiotic stress with at least one compound selected from the group consisting of the compounds represented by the following formula (I) and the like: (wherein in formula (I), Q denotes a group represented by formula (Q-1), formula (Q-2), or the like, In formula (Q-1) and formula (Q-2), * denotes an attachment point, Z denotes a C1-6 alkyl group or the like, X1 denotes a C1-6 alkyl group or the like, m is a chemically acceptable number of X1 and denotes any integer of 0 to 4, L denotes a single bond and the like, A1 denotes an oxygen atom and the like, and A2 denotes an oxygen atom and the like).Type: ApplicationFiled: June 3, 2021Publication date: July 27, 2023Applicant: NIPPON SODA CO., LTD.Inventors: Akihiro TAKAHASHI, Tomoyuki SAIGA, Yuka NAKAMURA
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Patent number: 11501998Abstract: There is formed, on a stack formed by alternately stacking an oxide film and a nitride film or an oxide film and a polysilicon film on a substrate, a hard mask in which two or more kinds of lines made of mutually different materials are arranged in order. Then, a photoresist is applied onto the hard mask. Furthermore, the photoresist is trimmed until one line is exposed from the end of the hard mask. Moreover, one line of the hard mask exposed beneath the photoresist is etched. Furthermore, a part of the stack exposed beneath the hard mask is etched. The etching of the photoresist, the hard mask, and the stack is repeated while changing etching conditions.Type: GrantFiled: August 19, 2020Date of Patent: November 15, 2022Assignee: TOKYO ELECTRON LIMITEDInventors: Kazuo Kibi, Akihiro Takahashi, Wataru Sakamoto
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Publication number: 20220346686Abstract: An oxygen measurement device constituting an oxygen measurement system includes a urethral catheter and an oxygen sensor main body. The urethral catheter has a shaft in which a urethral catheter lumen that enables circulation of urine flowed in via a urethral catheter port from inside a bladder is formed; and has a hub in which a urine lumen that is provided at a proximal end of the shaft and communicates with the urethral catheter lumen is formed. The oxygen sensor main body is provided on the hub in a manner capable of being brought into contact with urine circulating in the urine lumen, and detects oxygen in the urine.Type: ApplicationFiled: July 14, 2022Publication date: November 3, 2022Applicant: TERUMO KABUSHIKI KAISHAInventors: Satoru SUEHARA, Akihiro TAKAHASHI
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Patent number: 11420805Abstract: A device for stably maintaining the shape of a fragile object in a liquid includes a container for accommodating the fragile object, a lid member for sealing the container, and a protecting member. The device is configured to form a liquid-tight space by covering a liquid surface in the container which accommodates the fragile object and the liquid with the protecting member and further covering the protecting member and an open portion of the container with the lid member.Type: GrantFiled: June 17, 2020Date of Patent: August 23, 2022Assignee: TERUMO KABUSHIKI KAISHAInventors: Ryohei Takeuchi, Akihiro Takahashi, Yosuke Kuruma, Toshikazu Takeuchi, Kenta Mizumoto
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Publication number: 20220261201Abstract: A non-transitory computer-readable recording medium stores a display control program for causing a computer to execute a process including: identifying, from voice information of a participant of a conference or image information of the conference stored in a storage unit, a speaking partner of a remark to be recorded in minutes generated on a basis of the voice information; and displaying the remark to be recorded in the minutes and a relationship between a speaker who has made the remark and the participant other than the speaker in conjunction with each other.Type: ApplicationFiled: December 5, 2021Publication date: August 18, 2022Applicant: FUJITSU LIMITEDInventors: Taku Sasaki, Akihiro Takahashi, KEIICHI KOZUTA, Tetsuya Okano
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Patent number: 11406302Abstract: An oxygen measurement device constituting an oxygen measurement system includes a urethral catheter and an oxygen sensor main body. The urethral catheter has a shaft in which a urethral catheter lumen that enables circulation of urine flowed in via a urethral catheter port from inside a bladder is formed; and has a hub in which a urine lumen that is provided at a proximal end of the shaft and communicates with the urethral catheter lumen is formed. The oxygen sensor main body is provided on the hub in a manner capable of being brought into contact with urine circulating in the urine lumen, and detects oxygen in the urine.Type: GrantFiled: September 27, 2019Date of Patent: August 9, 2022Assignee: TERUMO KABUSHIKI KAISHAInventors: Satoru Suehara, Akihiro Takahashi
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Publication number: 20220125345Abstract: An oxygen measurement device includes a catheter including a flexible hollow shaft, the flexible shaft having an open port configured to allow urine from a bladder to flow into the open port, and a urinary passage in communication with the open port configured to discharge the urine; and an oxygen sensor including an oxygen sensor main body capable of detecting oxygen in the urine, the oxygen sensor being disposed in the catheter and configured such that the oxygen sensor main body is in contact with the urine flowing in the urinary passage.Type: ApplicationFiled: November 3, 2021Publication date: April 28, 2022Applicant: TERUMO KABUSHIKI KAISHAInventors: Satoru SUEHARA, Seyedriyah Hazama, Satoshi Sawada, Akihiro Takahashi
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Publication number: 20220065896Abstract: A probe pin inspection mechanism a includes a base, a pair of movable bodies, a pair of movable-body elastic bodies, and a conductor. The movable bodies are supported by the base to be movable in a first direction from a first position with respect to the base, and respectively include ends and terminals electrically connected to the respective ends. The movable-body elastic bodies elastically press the movable bodies in a second direction. The conductor is supported by the base and electrically connects the terminals of the movable bodies by making contact with the terminals. The state between the terminals and the conductor is switched, according to the position of the movable bodies, between a conductive state in which the terminals and the conductor are in contact with each other and a non-conductive state in which the terminals and the conductor are separated from each other.Type: ApplicationFiled: December 17, 2018Publication date: March 3, 2022Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Shingo SATO, Akihiro TAKAHASHI
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Patent number: 11225230Abstract: An electric-brake controller controls an electric brake operable by an electric motor. The electric-brake controller includes: a rotation-angle obtainer including (i) a relative-rotation-angle obtaining unit that obtains a relative rotation angle of the electric motor for a set time, based on values output and received from a rotation-angle sensor at intervals of the set time, and (ii) an absolute-rotation-angle obtaining unit that calculates the obtained relative rotation angle with consideration of an orientation of the relative rotation angle to obtain an absolute rotation angle that is a rotation angle of the electric motor from a start of its operation; a recognition-error detector that detects a recognition error in the rotation-angle obtainer based on the obtained absolute rotation angle or a changing state of the absolute rotation angle; and a motor controller that controls the electric motor based on a result of detection performed by the recognition-error detector.Type: GrantFiled: May 3, 2019Date of Patent: January 18, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yasuhiro Tajima, Hiroki Mima, Akihiro Takahashi
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Patent number: 11191461Abstract: An oxygen measurement device includes a catheter including a flexible hollow shaft, the flexible shaft having an open port configured to allow urine from a bladder to flow into the open port, and a urinary passage in communication with the open port configured to discharge the urine; and an oxygen sensor including an oxygen sensor main body capable of detecting oxygen in the urine, the oxygen sensor being disposed in the catheter and configured such that the oxygen sensor main body is in contact with the urine flowing in the urinary passage.Type: GrantFiled: December 7, 2018Date of Patent: December 7, 2021Assignee: TERUMO KABUSHIKI KAISHAInventors: Satoru Suehara, Seyedriyah Hazama, Satoshi Sawada, Akihiro Takahashi
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Publication number: 20210000498Abstract: Provided is a medical device capable of easily changing a position of the device inside a biological lumen and effectively removing a cut object. The medical device for removing the object in the biological lumen has a drive shaft, a cutting portion, a first housing that accommodates the drive shaft to be rotatable, a second housing that is rotatable with respect to the first housing, and a support portion that supports the first housing and the second housing. The second housing and the support portion relatively move along an axis to restrict relative rotation of the first housing and the second housing. The support portion supports the second housing to be rotatable around the axis, and restricts a relative movement and a relative inclination of the second housing and the support portion in a direction intersecting with the axis.Type: ApplicationFiled: September 17, 2020Publication date: January 7, 2021Applicant: TERUMO KABUSHIKI KAISHAInventors: Mizuho SHIRAISHI, Yuichi TADA, Akihiro TAKAHASHI
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Patent number: D1024961Type: GrantFiled: February 2, 2022Date of Patent: April 30, 2024Assignee: Hitachi, Ltd.Inventors: Tetsuya Suto, Akihiro Namba, Akeshi Takahashi, Makoto Ito
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Patent number: D1024963Type: GrantFiled: August 10, 2022Date of Patent: April 30, 2024Assignee: EBARA CORPORATIONInventors: Akihiro Ochiai, Kazuma Nishimura, Yohei Oishi, Takahide Ozawa, Masayuki Nagai, Shin Takahashi, Yuhei Shinchi