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).

  • Publication number: 20240108379
    Abstract: 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: Application
    Filed: December 15, 2023
    Publication date: April 4, 2024
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Mizuho SHIRAISHI, Yuichi TADA, Akihiro TAKAHASHI
  • Publication number: 20240091905
    Abstract: 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: Application
    Filed: August 24, 2023
    Publication date: March 21, 2024
    Inventors: Shin NAKAYAMA, Atsushi Takahashi, Kazufumi Yamazaki, Akihiro Maezawa, Sadatoshi Nishibuchi, Kenichi Tabata
  • Patent number: 11877768
    Abstract: 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: Grant
    Filed: September 17, 2020
    Date of Patent: January 23, 2024
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Mizuho Shiraishi, Yuichi Tada, Akihiro Takahashi
  • Patent number: 11812989
    Abstract: 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: Grant
    Filed: August 19, 2020
    Date of Patent: November 14, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Mizuho Shiraishi, Akihiro Takahashi
  • Publication number: 20230279951
    Abstract: 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: Application
    Filed: August 19, 2021
    Publication date: September 7, 2023
    Inventors: Tomohiro UCHIYAMA, Akihiro TAKAHASHI, Yuki MASUMI
  • Publication number: 20230279950
    Abstract: 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: Application
    Filed: June 14, 2021
    Publication date: September 7, 2023
    Inventors: Yuki MASUMI, Akihiro TAKAHASHI, Tomohiro UCHIYAMA
  • Patent number: 11733268
    Abstract: 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: Grant
    Filed: December 17, 2018
    Date of Patent: August 22, 2023
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shingo Sato, Akihiro Takahashi
  • Publication number: 20230232830
    Abstract: 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: Application
    Filed: June 3, 2021
    Publication date: July 27, 2023
    Applicant: NIPPON SODA CO., LTD.
    Inventors: Akihiro TAKAHASHI, Tomoyuki SAIGA, Yuka NAKAMURA
  • Patent number: 11501998
    Abstract: 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: Grant
    Filed: August 19, 2020
    Date of Patent: November 15, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Kazuo Kibi, Akihiro Takahashi, Wataru Sakamoto
  • Publication number: 20220346686
    Abstract: 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: Application
    Filed: July 14, 2022
    Publication date: November 3, 2022
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Satoru SUEHARA, Akihiro TAKAHASHI
  • Patent number: 11420805
    Abstract: 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: Grant
    Filed: June 17, 2020
    Date of Patent: August 23, 2022
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Ryohei Takeuchi, Akihiro Takahashi, Yosuke Kuruma, Toshikazu Takeuchi, Kenta Mizumoto
  • Publication number: 20220261201
    Abstract: 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: Application
    Filed: December 5, 2021
    Publication date: August 18, 2022
    Applicant: FUJITSU LIMITED
    Inventors: Taku Sasaki, Akihiro Takahashi, KEIICHI KOZUTA, Tetsuya Okano
  • Patent number: 11406302
    Abstract: 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: Grant
    Filed: September 27, 2019
    Date of Patent: August 9, 2022
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Satoru Suehara, Akihiro Takahashi
  • Publication number: 20220125345
    Abstract: 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: Application
    Filed: November 3, 2021
    Publication date: April 28, 2022
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Satoru SUEHARA, Seyedriyah Hazama, Satoshi Sawada, Akihiro Takahashi
  • Publication number: 20220065896
    Abstract: 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: Application
    Filed: December 17, 2018
    Publication date: March 3, 2022
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shingo SATO, Akihiro TAKAHASHI
  • Patent number: 11225230
    Abstract: 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: Grant
    Filed: May 3, 2019
    Date of Patent: January 18, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasuhiro Tajima, Hiroki Mima, Akihiro Takahashi
  • Patent number: 11191461
    Abstract: 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: Grant
    Filed: December 7, 2018
    Date of Patent: December 7, 2021
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Satoru Suehara, Seyedriyah Hazama, Satoshi Sawada, Akihiro Takahashi
  • Publication number: 20210000498
    Abstract: 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: Application
    Filed: September 17, 2020
    Publication date: January 7, 2021
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Mizuho SHIRAISHI, Yuichi TADA, Akihiro TAKAHASHI
  • Patent number: D1024961
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: April 30, 2024
    Assignee: Hitachi, Ltd.
    Inventors: Tetsuya Suto, Akihiro Namba, Akeshi Takahashi, Makoto Ito
  • Patent number: D1024963
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: April 30, 2024
    Assignee: EBARA CORPORATION
    Inventors: Akihiro Ochiai, Kazuma Nishimura, Yohei Oishi, Takahide Ozawa, Masayuki Nagai, Shin Takahashi, Yuhei Shinchi