Patents by Inventor Ryohei Maruyama
Ryohei Maruyama 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: 12191872Abstract: An R/D conversion method includes a step of removing a frequency band including a frequency component that is twice an excitation frequency of excitation signals of a resolver (30) from a digital angle value (?). The R/D conversion method further includes a step of outputting, by the resolver (30), the resolver signals having a phase difference that corresponds to an angle of the resolver with respect to the excitation signals, respectively, and a step of feeding back the digital angle value (?) includes feeding back the digital angle value (?) to the resolver signals.Type: GrantFiled: September 10, 2020Date of Patent: January 7, 2025Assignee: TAMAGAWA SEIKI CO., LTD.Inventors: Hiroshi Kushihara, Hirofumi Maruyama, Ryohei Ushikusa, Shinichi Arai
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Publication number: 20240367445Abstract: A printing apparatus includes a conveyance unit configured to be able to convey a roll sheet that is wound in a rolled shape and a cut sheet that is not wound in a rolled shape to a printing unit configured to print an image; a receiving unit detachably attached to the apparatus, the receiving unit being configured to receive the cut sheet onto which printing has been performed by the printing unit; a detection unit configured to detect whether the receiving unit is attached to the apparatus; and a holding unit configured to, in a case where the detection unit detects that the receiving unit is not attached to the apparatus, nip to hold the cut sheet onto which printing has been performed by the printing unit.Type: ApplicationFiled: July 16, 2024Publication date: November 7, 2024Inventors: Itaru Wada, Yasuyuki Asai, Hiromasa Yoneyama, Ryohei Maruyama, Yoshiaki Suzuki, Tomohito Abe, Tsutomu Obata, Noriyuki Aoki
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Publication number: 20240359475Abstract: A liquid supply apparatus configured to supply a liquid to a printing unit, comprising a tray holder configured to hold a tray on which a flexible retaining container configured to retain a liquid is placed, the tray holder allowing insertion of the tray in a first direction, wherein the retaining container has a foldable gusset portion, and the tray holder is provided with a folding unit configured to fold the gusset portion in a state in which the tray is held by the tray holder.Type: ApplicationFiled: April 23, 2024Publication date: October 31, 2024Inventors: AKIRA FUJIKAKE, HIROMASA YONEYAMA, DAIGO KURONUMA, HIDEYUKI NOZAWA, TOMOYUKI NAGASE, YUTO NITAMI, RYOHEI MARUYAMA, MASAKAZU NAGASHIMA, KICHINOSUKE HIROKAWA, KENTA IIMURA, NAOAKI WADA
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Publication number: 20240359477Abstract: A liquid supply apparatus includes a holding member configured to detachably hold a tray on which a flexible container provided with a supply port for supplying a liquid to a printhead is placed; a press member configured to press the container attached to the liquid supply apparatus; a movable member configured to move the press member to a first position where the press member presses the container and a second position where a press amount of the press member for the container is smaller than at the first position; a first spring having one end locked on the press member and the other end locked on the holding member; and a second spring having one end locked on the press member and the other end locked on the movable member.Type: ApplicationFiled: April 26, 2024Publication date: October 31, 2024Inventors: MASAKAZU NAGASHIMA, AKIRA FUJIKAKE, RYOHEI MARUYAMA, HIROMASA YONEYAMA, DAIGO KURONUMA, HIDEYUKI NOZAWA, TOMOYUKI NAGASE, YUTO NITAMI, KICHINOSUKE HIROKAWA, KENTA IIMURA, NAOAKI WADA
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Publication number: 20240359474Abstract: A liquid supply apparatus includes a holding member and a receiving member. The holding member detachably holds a tray on which a container, that is flexible and is provided with a supply port for supplying liquid to a recording head, is placed with respect to the liquid supply apparatus. The receiving member is provided below the holding member attached to the liquid supply apparatus and receives a liquid leaking from the container. An angle of a bottom surface of the holding member with respect to a horizontal plane is different from an angle of a bottom surface of the receiving member with respect to the horizontal plane.Type: ApplicationFiled: April 18, 2024Publication date: October 31, 2024Inventors: RYOHEI MARUYAMA, HIROMASA YONEYAMA, MASAKAZU NAGASHIMA, KENTA IIMURA, YUJIRO ISHIDA, KOHEI FUKUI, SHU KURIHARA
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Publication number: 20240359476Abstract: A liquid supply apparatus configured to supply a liquid to a printing unit, comprising a tray on which a flexible retaining container that retains a liquid is configured to be placed, and a tray holder configured to hold the tray so as to allow insertion of the tray in a first direction, wherein the retaining container includes a supply port configured to supply a liquid to the printing unit and an inlet coupled to the supply port and configured to take in a liquid into the retaining container, and the tray is provided with a concave shape overlapping the inlet from a viewpoint in an up-down direction in a state in which the tray is inserted in the tray holder.Type: ApplicationFiled: April 23, 2024Publication date: October 31, 2024Inventors: NAOAKI WADA, TOMOYUKI NAGASE, MASAKAZU NAGASHIMA, HIDEYUKI NOZAWA, DAIGO KURONUMA, HIROMASA YONEYAMA, RYOHEI MARUYAMA, AKIRA FUJIKAKE, KICHINOSUKE HIROKAWA, KENTA IIMURA, YUTO NITAMI
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Publication number: 20240359478Abstract: A liquid storage apparatus includes storage portions arranged in a first direction, each storage portion configured to store a liquid container for storing a liquid, status display units, each status display unit corresponding to one of the storage portions and configured to display a status of the liquid container, and type display units, each type display unit corresponding to one of the storage portions and configured to display a type of liquid assigned to the storage portion. Each storage portion and the corresponding status display unit are arranged so as to be aligned in a second direction that intersects the first direction. The storage portion and the corresponding type display unit are arranged so as to be aligned in the second direction. The type display unit is arranged on a side of the status display unit with respect to the storage portion.Type: ApplicationFiled: April 26, 2024Publication date: October 31, 2024Inventors: HIROMASA YONEYAMA, KENTA IIMURA, RYOHEI MARUYAMA, DAIGO KURONUMA, MASAKAZU NAGASHIMA, NAOAKI WADA, KICHINOSUKE HIROKAWA, YUTO NITAMI, AKIRA FUJIKAKE, TOMOYUKI NAGASE, HIDEYUKI NOZAWA
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Patent number: 12115781Abstract: There is provided a printing apparatus. A printing unit prints an image on a printing medium and is able to move. A cutter unit is able to connect with or separate from the printing unit, and, by following a movement of the printing unit, cuts the printing medium. A setting unit sets, in accordance with a size of the printing medium, a standby position of the cutter unit.Type: GrantFiled: December 14, 2020Date of Patent: October 15, 2024Assignee: Canon Kabushiki KaishaInventors: Yasuyuki Asai, Hiromasa Yoneyama, Ryohei Maruyama, Itaru Wada, Yoshiaki Suzuki, Tomohito Abe, Tsutomu Obata, Noriyuki Aoki
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Patent number: 12077006Abstract: The carriage apparatus includes a carriage configured to reciprocally move in a first direction, a first motor arranged on a side of one end of a range of movement of the carriage and configured to drive the carriage, a second motor arranged on a side of the other end of the range of movement of the carriage and configured to drive the carriage, a carriage belt suspended between the first motor and the second motor, attached with the carriage, and configured to move the carriage in the first direction, and a support portion configured to mount the second motor so that the second motor is displaceable in the first direction with respect to the first motor.Type: GrantFiled: September 29, 2021Date of Patent: September 3, 2024Assignee: Canon Kabushiki KaishaInventors: Ryutaro Takahashi, Daigo Kuronuma, Naoaki Wada, Tomohito Abe, Kenta Iimura, Ryohei Maruyama, Masakazu Nagashima, Toshiaki Yamaguchi
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Patent number: 12070952Abstract: A recording apparatus includes a carriage, a tank, and a flow passage. The carriage includes a liquid ejecting recording head and reciprocates in first and second directions. The flow passage supplies liquid from the tank to the recording head, and includes a fixed flow passage, a first flow passage, and a second flow passage. The fixed flow passage is connected to the tank and does not to follow a movement of the carriage. The first flow passage is branched off from the fixed flow passage, is connected to the recording head in the first direction, and follows the carriage movement. The second flow passage is branched off from the fixed flow passage, is connected to the recording head in the second direction, and follows the carriage movement. After the carriage moves in the first direction, stops, and moves in the second direction, liquid is sucked from the recording head.Type: GrantFiled: September 28, 2021Date of Patent: August 27, 2024Assignee: CANON KABUSHIKI KAISHAInventors: Takaya Sato, Ryohei Maruyama, Daigo Kuronuma, Kenta Iimura, Tomohito Abe, Naoaki Wada, Masakazu Nagashima, Toshiaki Yamaguchi, Ryutaro Takahashi
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Patent number: 12064959Abstract: A printing apparatus includes a conveyance unit configured to be able to convey a roll sheet that is wound in a rolled shape and a cut sheet that is not wound in a rolled shape to a printing unit configured to print an image, a receiving unit detachably attached to the apparatus, the receiving unit being configured to receive the cut sheet onto which printing has been performed by the printing unit; a detection unit configured to detect whether the receiving unit is attached to the apparatus; and a holding unit configured to, in a case where the detection unit detects that the receiving unit is not attached to the apparatus, nip to hold the cut sheet onto which printing has been performed by the printing unit.Type: GrantFiled: August 16, 2022Date of Patent: August 20, 2024Assignee: Canon Kabushiki KaishaInventors: Itaru Wada, Yasuyuki Asai, Hiromasa Yoneyama, Ryohei Maruyama, Yoshiaki Suzuki, Tomohito Abe, Tsutomu Obata, Noriyuki Aoki
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Publication number: 20240269996Abstract: There is provided a printing apparatus comprises a holding unit configured to hold a roll sheet. The printing apparatus performs: supplying the sheet by rotating the roll sheet held by the holding unit; nipping and conveying the supplied sheet; performing printing on the conveyed sheet; detecting occurrence of a print medium jam of the sheet; and, if the printing apparatus has detected a print medium jam of the sheet, performing a control process of supplying the sheet in a state in which the conveying is stopped.Type: ApplicationFiled: April 23, 2024Publication date: August 15, 2024Inventors: Yoshiaki Suzuki, Hiromasa Yoneyama, Ryohei Maruyama, Itaru Wada, Tomohito Abe, Tsutomu Obata, Noriyuki Aoki, Yasuyuki Asai
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Patent number: 12030309Abstract: A printing apparatus includes a carriage mounted with a printing unit configured to perform printing on a print medium, a first motor used to move the carriage, a second motor used together with the first motor to move the carriage, and a control unit configured to control the first motor and the second motor. When moving the carriage, the control unit controls the first motor with a first control amount and controls the second motor with a second control amount. The first control amount and the second control amount are different from each other, and a ratio therebetween is a predetermined ratio.Type: GrantFiled: May 12, 2022Date of Patent: July 9, 2024Assignee: Canon Kabushiki KaishaInventors: Naoaki Wada, Daigo Kuronuma, Masakazu Nagashima, Tomohito Abe, Ryohei Maruyama, Kenta Iimura, Hiromasa Yoneyama, Kichinosuke Hirokawa, Akira Fujikake, Toshiaki Yamaguchi, Hideyuki Nozawa
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Patent number: 11999175Abstract: A printing apparatus includes a carriage mounted with a printing unit, a belt, a first motor configured to drive the belt at one end in a widthwise direction, a second motor configured to drive the belt at the other end in the widthwise direction, and a control unit configured to control the first motor and the second motor. The control unit performs first control by driving the first motor in which the carriage moves from a state in which the carriage is stopped. In the control, the second motor is controlled from a first state in which its torque is lower than that of the first motor to a second state in which its torque is higher than that in the first state.Type: GrantFiled: May 12, 2022Date of Patent: June 4, 2024Assignee: Canon Kabushiki KaishaInventors: Tomohito Abe, Kenta Iimura, Kichinosuke Hirokawa, Akira Fujikake, Toshiaki Yamaguchi, Daigo Kuronuma, Masakazu Nagashima, Naoaki Wada, Ryohei Maruyama, Hideyuki Nozawa, Hiromasa Yoneyama
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Patent number: 11993073Abstract: A printing apparatus that includes a holding unit configured to hold a roll sheet performs supplying the sheet by rotating the roll sheet held by the holding unit; nipping and conveying the supplied sheet; performing printing on the conveyed sheet; detecting occurrence of a print medium jam of the sheet; and, if the printing apparatus has detected a print medium jam of the sheet, performing a control process of supplying the sheet in a state in which the conveying is stopped.Type: GrantFiled: January 31, 2023Date of Patent: May 28, 2024Assignee: Canon Kabushiki KaishaInventors: Yoshiaki Suzuki, Hiromasa Yoneyama, Ryohei Maruyama, Itaru Wada, Tomohito Abe, Tsutomu Obata, Noriyuki Aoki, Yasuyuki Asai
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Patent number: 11945235Abstract: There is provided a printing apparatus which includes the following: A printhead including a plurality of nozzles that discharge ink to a print medium. A first detection unit that detects a distance between the printhead and a platen. An adjustment unit that adjusts the distance between the printhead and the platen. An acquisition unit that acquires difference information concerning a difference of a distance between the platen and each of the nozzle on an upstream side and the nozzle on a downstream side in a conveyance direction of the print medium. The adjustment unit adjusts the distance based on a detection result of the first detection unit and the difference information acquired by the acquisition unit.Type: GrantFiled: December 5, 2022Date of Patent: April 2, 2024Assignee: Canon Kabushiki KaishaInventors: Tomohito Abe, Daigo Kuronuma, Ryutaro Takahashi, Naoaki Wada, Noriyuki Aoki, Ryohei Maruyama, Masakazu Nagashima, Toshiaki Yamaguchi
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Patent number: 11926152Abstract: A printing apparatus includes a carriage mounted with a printing unit; a first motor configured to move the carriage in a predetermined direction; a second motor configured to move the carriage in the predetermined direction; and a control unit. The control unit executes a first mode in which, when causing the printing unit to perform printing under a first printing condition, the first motor is driven in a first direction and the second motor is driven in the first direction, and a second mode in which, when causing the printing unit to perform printing under a second printing condition different from the first printing condition, the first motor is driven in the first direction and the second motor is driven in the first direction while changing an output ratio between the first motor and the second motor.Type: GrantFiled: May 12, 2022Date of Patent: March 12, 2024Assignee: Canon Kabushiki KaishaInventors: Ryohei Maruyama, Daigo Kuronuma, Masakazu Nagashima, Tomohito Abe, Kenta Iimura, Hiromasa Yoneyama, Naoaki Wada, Kichinosuke Hirokawa, Akira Fujikake, Toshiaki Yamaguchi, Hideyuki Nozawa
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Publication number: 20230241905Abstract: A printing apparatus that includes a holding unit configured to hold a roll sheet performs supplying the sheet by rotating the roll sheet held by the holding unit; nipping and conveying the supplied sheet; performing printing on the conveyed sheet; detecting occurrence of a print medium jam of the sheet; and, if the printing apparatus has detected a print medium jam of the sheet, performing a control process of supplying the sheet in a state in which the conveying is stopped.Type: ApplicationFiled: January 31, 2023Publication date: August 3, 2023Inventors: Yoshiaki Suzuki, Hiromasa Yoneyama, Ryohei Maruyama, Itaru Wada, Tomohito Abe, Tsutomu Obata, Noriyuki Aoki, Yasuyuki Asai
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Patent number: 11712910Abstract: A printing apparatus, comprising a conveyance unit for conveying a sheet, a carriage mounted with a printhead and configured to scan the printhead in a sheet widthwise direction, a platen arranged so as to face the printhead, a detection unit mounted on the carriage and configured to detect a distance to a sheet, a support portion, for supporting a sheet from below, arranged on a downstream side of the carriage in a conveyance direction, movable between a first position at which the support portion forms a conveyance surface for a sheet and a second position at which the support portion protrudes above the conveyance surface, and a determination unit configured to determine, based on a detection result of the detection unit, whether the support portion is at the first position or the second position.Type: GrantFiled: December 14, 2020Date of Patent: August 1, 2023Assignee: Canon Kabushiki KaishaInventors: Tomohito Abe, Yasuyuki Asai, Hiromasa Yoneyama, Ryohei Maruyama, Itaru Wada, Yoshiaki Suzuki, Tsutomu Obata, Noriyuki Aoki
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Patent number: 11679606Abstract: There is provided with printing apparatus. A printing unit prints an image on a printing medium and is able to move. A cutter unit is able to connect with or separate from the printing unit, and, by following a movement of the printing unit, cuts the printing medium. A control unit, in a case where a predetermined condition is satisfied after the printing medium is cut by the cutter unit, causes the printing unit to perform printing on a succeeding printing medium, while moving the printing unit in a state in which the cutter unit is connected with the printing unit.Type: GrantFiled: December 14, 2020Date of Patent: June 20, 2023Assignee: Canon Kabushiki KaishaInventors: Hiromasa Yoneyama, Yasuyuki Asai, Ryohei Maruyama, Itaru Wada, Yoshiaki Suzuki, Tomohito Abe, Tsutomu Obata, Noriyuki Aoki