Patents by Inventor Ryo Aihara
Ryo Aihara 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).
-
Patent number: 12287599Abstract: A static elimination apparatus includes a conveyance unit to convey a sheet along a conveyance path, a non-contact static elimination unit to eliminate static from the sheet, a first guide member including a contact portion to guide the sheet, and a plurality of openings arranged next to each other in a width direction. The plurality of openings expose the non-contact static elimination unit to a conveyance path. The contact portion includes a plurality of first ribs arranged on one side with respect to a conveyance center, and a plurality of second ribs arranged on the other side with respect to the conveyance center. The plurality of first ribs and the plurality of second ribs are inclined relative to the sheet conveyance direction so that the further downstream in the sheet conveyance direction each rib is, the greater a distance between each rib and the conveyance center is.Type: GrantFiled: January 26, 2024Date of Patent: April 29, 2025Assignee: Canon Kabushiki KaishaInventors: Keisuke Mogi, Shingo Iwami, Ryo Aihara, Taichi Uchida
-
Publication number: 20250061912Abstract: A speech enhancement device that calculates an acoustic component from mixed audio data; that estimates an acoustic feature by inputting the acoustic component to a feature estimation model; that calculates a noise component from noise data; that estimates a noise feature by inputting the noise component to a noise estimation model; that estimates a correlation between the acoustic feature and the noise feature by inputting the acoustic feature and the noise feature to a correlation estimation model; that calculates an integrated feature by weighting the acoustic feature with the estimated correlation; that estimates a target speech mask by inputting the integrated feature to a speech enhancement model; and that restores speech audio with the target speech audio enhanced from the acoustic component and the target speech mask.Type: ApplicationFiled: November 7, 2024Publication date: February 20, 2025Applicant: MITSUBISHI ELECTRIC CORPORATIONInventor: Ryo AIHARA
-
Patent number: 12085880Abstract: An image forming apparatus includes a transfer portion to transfer a toner image to a recording material, a fixing portion having a heating unit and a cylindrical rotary member and to fix the toner image to the recording material, a fixing drive portion to drive the cylindrical rotary member, and a controller. In a case in which images are formed on a plurality of recording materials, the controller controls the fixing drive portion based on a time period from a time when a trailing edge of a preceding recording material passes through the fixing portion to a time when a leading edge of a subsequent recording material passes through the fixing portion so that a second rotation speed of the cylindrical rotary member when conveying the subsequent recording material becomes lower than a first rotation speed of the cylindrical rotary member when conveying the preceding recording material.Type: GrantFiled: December 22, 2022Date of Patent: September 10, 2024Assignee: Canon Kabushiki KaishaInventors: Ryo Aihara, Hisashi Tsukijima
-
Publication number: 20240255883Abstract: A static elimination apparatus includes a conveyance unit configured to convey a sheet along a conveyance path, a non-contact static elimination unit arranged above the conveyance path and configured to eliminate static electricity from the sheet in a non-contact state, an upper side guide member arranged to face an upper surface of the sheet and configured to form part of the conveyance path, a lower side guide member arranged to face a lower surface of the sheet and configured to form the conveyance path together with the upper side guide member, a lower side unit in which the lower side guide member is arranged, and an upper side unit in which the non-contact static elimination unit is arranged and that is configured to be rotated upward with respect to the lower side unit to make at least part of the conveyance path exposed.Type: ApplicationFiled: January 26, 2024Publication date: August 1, 2024Inventors: SHINGO IWAMI, RYO AIHARA, RYO NAKANISHI
-
Publication number: 20240255863Abstract: A static elimination apparatus includes a conveyance unit to convey a sheet along a conveyance path, a non-contact type static elimination unit to perform static elimination on the sheet without being in contact with the sheet, and first and second guide members. The first guide member includes a contact portion to guide the sheet and a plurality of openings arranged in a sheet widthwise direction perpendicular to a sheet conveyance direction to expose the non-contact type static elimination unit to the conveyance path. The second guide member is disposed to face the first guide member and forms a part of the conveyance path together with the first guide member. The contact portion includes an inclined portion upstream in the sheet conveyance direction. The inclined portion is inclined so that a distance to the second guide member decreases downstream in the sheet conveyance direction.Type: ApplicationFiled: January 26, 2024Publication date: August 1, 2024Inventors: KOJI SUZUKI, SHINGO IWAMI, RYO AIHARA, KAZUYA NUMATA
-
Publication number: 20240255884Abstract: A charge eliminating apparatus configured to remove charges from a sheet on which an image is formed by a printing apparatus, includes a charge eliminating roller pair including a first charge eliminating roller and a second charge eliminating roller configured to form a nip portion together with the first charge eliminating roller, the charge eliminating roller pair being configured to remove the charges from the sheet in a state of contacting the sheet at the nip portion, a first setting unit configured to set a value of a voltage applied to the charge eliminating roller pair, and a second setting unit configured to set whether to apply the voltage to the charge eliminating roller pair, wherein the second setting unit is configured to set whether to apply the voltage to the charge eliminating roller pair without changing the value of the voltage set by the first setting unit.Type: ApplicationFiled: January 26, 2024Publication date: August 1, 2024Inventors: RYO AIHARA, SHIN ONO, YUTAKA KAKEHI, YASUHARU CHIYODA, KEISUKE MOGI, SHINGO IWAMI, RYOSUKE TSURUGA
-
Publication number: 20240255885Abstract: A static elimination apparatus includes a conveyance unit to convey a sheet along a conveyance path, a non-contact static elimination unit to eliminate static from the sheet, a first guide member including a contact portion to guide the sheet, and a plurality of openings arranged next to each other in a width direction. The plurality of openings expose the non-contact static elimination unit to a conveyance path. The contact portion includes a plurality of first ribs arranged on one side with respect to a conveyance center, and a plurality of second ribs arranged on the other side with respect to the conveyance center. The plurality of first ribs and the plurality of second ribs are inclined relative to the sheet conveyance direction so that the further downstream in the sheet conveyance direction each rib is, the greater a distance between each rib and the conveyance center is.Type: ApplicationFiled: January 26, 2024Publication date: August 1, 2024Inventors: KEISUKE MOGI, SHINGO IWAMI, RYO AIHARA, TAICHI UCHIDA
-
Publication number: 20230419980Abstract: An information processing device includes an acquisition unit that acquires sound source position information and so forth, a sound feature value extraction unit that extracts a plurality of sound feature values based on the mixed sound signal, an emphasis unit that emphasizes a sound feature value in a target sound direction based on the sound source position information, an estimation unit that estimates the target sound direction based on the sound source position information and so forth, a mask feature value extraction unit that extracts a mask feature value based on the estimated target sound direction and so forth, a generation unit that generates a target sound direction emphasis sound signal and generates a target sound direction masking sound signal, and a target sound signal output unit that outputs a target sound signal by using the target sound direction emphasis sound signal and so forth.Type: ApplicationFiled: August 29, 2023Publication date: December 28, 2023Applicant: Mitsubishi Electric CorporationInventor: Ryo AIHARA
-
Patent number: 11835902Abstract: An image reading apparatus includes a conveyance unit, a first reading unit, a first guide portion, a second reading unit, and a second guide portion. The second reading unit includes a rectangular transparent member, an optical reading unit, a housing, a first and a second contact portions, a first and a second pressing members, and a protruding portion. The first and the second contact portions are protruding from a facing surface of the housing. The protruding portion, when viewed from an upstream side in a conveyance direction of a recording material passing through a conveyance path between the second reading unit and the second guide portion, is disposed between the first contact portion and the second contact portion and protruding from the facing surface of the housing, a protruding amount of the protruding portion being smaller than protruding amounts of the first and the second contact portions.Type: GrantFiled: November 30, 2021Date of Patent: December 5, 2023Assignee: Canon Kabushiki KaishaInventor: Ryo Aihara
-
Patent number: 11820618Abstract: A sheet conveying apparatus includes a transmitting mechanism-, a movable member, and a control portion to input a signal having first and second levels. The transmitting mechanism transmits driving force and includes a spring clutch and an electromagnetic clutch. The driving force pivotally moves the movable member. The spring clutch idles by a slackness of a spring when the rotation in a second direction is inputted to the transmitting mechanism and the movable member is regulated from pivoting at a predetermined position. The control portion inputs the signal to the transmitting mechanism such that the state electromagnetic clutch state changes the engagement state to the disengagement state through an intermediary state gradually varying a length of time where the signal of the first level is inputted into the electromagnetic clutch after the movable member reaches the predetermined position by inputting the rotation in the second direction to the transmitting mechanism.Type: GrantFiled: February 3, 2021Date of Patent: November 21, 2023Assignee: Canon Kabushiki KaishaInventor: Ryo Aihara
-
Patent number: 11798574Abstract: A speech separation device (12) of a speech separation system includes a feature amount extraction unit (121) configured to extract time-series data of a speech feature amount of mixed speech, a block division unit (122) configured to divide the time-series data of the speech feature amount into blocks having a certain time width, a speech separation neural network (1b) configured to create time-series data of a mask of each of a plurality of speakers from the time-series data of the speech feature amount divided into blocks, and a speech restoration unit (123) configured to restore the speech data of each of the plurality of speakers from the time-series data of the mask and the time-series data of the speech feature amount of the mixed speech.Type: GrantFiled: January 12, 2021Date of Patent: October 24, 2023Assignees: MITSUBISHI ELECTRIC CORPORATION, MITSUBISHI ELECTRIC RESEARCH LABORATORIES, INC.Inventors: Ryo Aihara, Toshiyuki Hanazawa, Yohei Okato, Gordon P Wichern, Jonathan Le Roux
-
Publication number: 20230221665Abstract: An image forming apparatus includes a transfer portion to transfer a toner image to a recording material, a fixing portion having a heating unit and a cylindrical rotary member and to fix the toner image to the recording material, a fixing drive portion to drive the cylindrical rotary member, and a controller. In a case in which images are formed on a plurality of recording materials, the controller controls the fixing drive portion based on a time period from a time when a trailing edge of a preceding recording material passes through the fixing portion to a time when a leading edge of a subsequent recording material passes through the fixing portion so that a second rotation speed of the cylindrical rotary member when conveying the subsequent recording material becomes lower than a first rotation speed of the cylindrical rotary member when conveying the preceding recording material.Type: ApplicationFiled: December 22, 2022Publication date: July 13, 2023Inventors: RYO AIHARA, HISASHI TSUKIJIMA
-
Publication number: 20220229390Abstract: An image forming apparatus includes an image forming portion, a sheet feeding portion, a first guiding member, a second guiding member, a driving portion, a detecting portion, and a controller. When a leading end of a sheet is detected by the detecting portion, in a case that information on a thickness of the sheet fed by the sheet feeding portion is a first thickness, the controller controls the driving portion so that a distance in a sheet feeding passage with respect to a thickness direction is a first distance, and in a case that the information on the thickness of the sheet fed by the sheet feeding portion is a second thickness thinner than the first thickness, the controller controls the driving portion so that the distance in the sheet feeding passage with respect to the thickness direction is a second distance shorter than the first distance.Type: ApplicationFiled: December 7, 2021Publication date: July 21, 2022Inventor: Ryo Aihara
-
Publication number: 20220177245Abstract: An image reading apparatus includes a conveyance unit, a first reading unit, a first guide portion, a second reading unit, and a second guide portion. The second reading unit includes a rectangular transparent member, an optical reading unit, a housing, a first and a second contact portions, a first and a second pressing members, and a protruding portion. The first and the second contact portions are protruding from a facing surface of the housing. The protruding portion, when viewed from an upstream side in a conveyance direction of a recording material passing through a conveyance path between the second reading unit and the second guide portion, is disposed between the first contact portion and the second contact portion and protruding from the facing surface of the housing, a protruding amount of the protruding portion being smaller than protruding amounts of the first and the second contact portions.Type: ApplicationFiled: November 30, 2021Publication date: June 9, 2022Inventor: Ryo Aihara
-
Patent number: 11178299Abstract: An image reading apparatus, including: a hinge configured to support an original conveying unit pivotably relative to an image reading unit; a swing pedestal configured to support the hinge; a swing axis configured to support the swing pedestal swingably relative to the image reading unit; and a first abutment portion and a second abutment portion configured to abut the image reading unit so as to form a space between the image reading unit and the original conveying unit, wherein the first abutment portion that is in a state not in contact with the image reading unit can be brought into contact with the image reading unit by the swing pedestal swinging about a swing axis in a state in which the second abutment portion is in contact with the image reading unit.Type: GrantFiled: July 10, 2020Date of Patent: November 16, 2021Assignee: Canon Kabushiki KaishaInventor: Ryo Aihara
-
Publication number: 20210245978Abstract: A sheet conveying apparatus includes a transmitting mechanism, a movable member, and a control portion to input a signal having first and second levels. The transmitting mechanism transmits driving force and includes a spring clutch and an electromagnetic clutch. The driving force pivotally moves the movable member. The spring clutch idles by a slackness of a spring when the rotation in a second direction is inputted to the transmitting mechanism and the movable member is regulated from pivoting at a predetermined position. The control portion inputs the signal to the transmitting mechanism such that the state electromagnetic clutch state changes the engagement state to the disengagement state through an intermediary state gradually varying a length of time where the signal of the first level is inputted into the electromagnetic clutch after the movable member reaches the predetermined position by inputting the rotation in the second direction to the transmitting mechanism.Type: ApplicationFiled: February 3, 2021Publication date: August 12, 2021Inventor: Ryo Aihara
-
Publication number: 20210233550Abstract: A speech separation device (12) of a speech separation system includes a feature amount extraction unit (121) configured to extract time-series data of a speech feature amount of mixed speech, a block division unit (122) configured to divide the time-series data of the speech feature amount into blocks having a certain time width, a speech separation neural network (1b) configured to create time-series data of a mask of each of a plurality of speakers from the time-series data of the speech feature amount divided into blocks, and a speech restoration unit (123) configured to restore the speech data of each of the plurality of speakers from the time-series data of the mask and the time-series data of the speech feature amount of the mixed speech.Type: ApplicationFiled: January 12, 2021Publication date: July 29, 2021Applicants: MITSUBISHI ELECTRIC CORPORATION, MITSUBISHI ELECTRIC RESEARCH LABORATORIES, INC.Inventors: Ryo AIHARA, Toshiyuki HANAZAWA, Yohei OKATO, Gordon P WICHERN, Jonathan LE ROUX
-
Publication number: 20210014373Abstract: An image reading apparatus, including: a hinge configured to support an original conveying unit pivotably relative to an image reading unit; a swing pedestal configured to support the hinge; a swing axis configured to support the swing pedestal swingably relative to the image reading unit; and a first abutment portion and a second abutment portion configured to abut the image reading unit so as to form a space between the image reading unit and the original conveying unit, wherein the first abutment portion that is in a state not in contact with the image reading unit can be brought into contact with the image reading unit by the swing pedestal swinging about a swing axis in a state in which the second abutment portion is in contact with the image reading unit.Type: ApplicationFiled: July 10, 2020Publication date: January 14, 2021Inventor: Ryo Aihara