Patents by Inventor Kohta Takenaka
Kohta Takenaka 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: 11495203Abstract: A sound absorber includes at least one cavity and at least one mouth to communicate the at least one cavity with an outside of the sound absorber. The at least one cavity includes a top surface, a bottom surface, and a side wall. The top surface includes the mouth. The bottom surface opposes the top surface. The side wall is extended to connect the top surface with the bottom surface. At least one of the top surface and the bottom surface is inclined with respect to the side wall.Type: GrantFiled: December 3, 2019Date of Patent: November 8, 2022Assignee: Ricoh Company, LTD.Inventors: Masahiro Ishida, Naoki Matsuda, Hiroshi Ishii, Kohta Takenaka, Keisuke Shimizu, Shogo Sakamoto, Takayuki Isaka
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Patent number: 11169482Abstract: A housing includes at least one openable cover and at least one adjacent cover. The at least one openable cover swings on a hinge to separate an interior of the housing from an exterior of the housing. The at least one openable cover has a first side edge on a side of the hinge. The at least one adjacent cover is adjacent to the at least one openable cover. The at least one adjacent cover has a second side edge neighboring the first side edge of the at least one openable cover across a gap. One of the at least one openable cover and the at least one adjacent cover includes at least one projection projecting into the gap and another one of the at least one openable cover and the at least one adjacent cover includes a recess that accommodates the at least one projection in the gap.Type: GrantFiled: December 21, 2020Date of Patent: November 9, 2021Assignee: RICOH COMPANY, LTD.Inventors: Masahiro Ishida, Naoki Matsuda, Keisuke Shimizu, Kohta Takenaka
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Publication number: 20210109476Abstract: A housing includes at least one openable cover and at least one adjacent cover. The at least one openable cover swings on a hinge to separate an interior of the housing from an exterior of the housing. The at least one openable cover has a first side edge on a side of the hinge. The at least one adjacent cover is adjacent to the at least one openable cover. The at least one adjacent cover has a second side edge neighboring the first side edge of the at least one openable cover across a gap. One of the at least one openable cover and the at least one adjacent cover includes at least one projection projecting into the gap and another one of the at least one openable cover and the at least one adjacent cover includes a recess that accommodates the at least one projection in the gap.Type: ApplicationFiled: December 21, 2020Publication date: April 15, 2021Applicant: Ricoh Company, Ltd.Inventors: Masahiro ISHIDA, Naoki MATSUDA, Keisuke SHIMIZU, Kohta TAKENAKA
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Publication number: 20200105237Abstract: A sound absorber includes at least one cavity and at least one mouth to communicate the at least one cavity with an outside of the sound absorber. The at least one cavity includes a top surface, a bottom surface, and a side wall. The top surface includes the mouth. The bottom surface opposes the top surface. The side wall is extended to connect the top surface with the bottom surface. At least one of the top surface and the bottom surface is inclined with respect to the side wall.Type: ApplicationFiled: December 3, 2019Publication date: April 2, 2020Applicant: Ricoh Company, Ltd.Inventors: Masahiro ISHIDA, Naoki MATSUDA, Hiroshi ISHII, Kohta TAKENAKA, Keisuke SHIMIZU, Shogo SAKAMOTO, Takayuki ISAKA
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Patent number: 10540953Abstract: A sound absorber includes at least one cavity and at least one mouth to communicate the at least one cavity with an outside of the sound absorber. The at least one cavity includes a top surface, a bottom surface, and a side wall. The top surface includes the mouth. The bottom surface opposes the top surface. The side wall is extended to connect the top surface with the bottom surface. At least one of the top surface and the bottom surface is inclined with respect to the side wall.Type: GrantFiled: January 25, 2017Date of Patent: January 21, 2020Assignee: Ricoh Company, Ltd.Inventors: Masahiro Ishida, Naoki Matsuda, Hiroshi Ishii, Kohta Takenaka, Keisuke Shimizu, Shogo Sakamoto, Takayuki Isaka
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Publication number: 20190384218Abstract: A housing includes at least one openable cover and at least one adjacent cover. The at least one openable cover swings on a hinge to separate an interior of the housing from an exterior of the housing. The at least one openable cover has a first side edge on a side of the hinge. The at least one adjacent cover is adjacent to the at least one openable cover. The at least one adjacent cover has a second side edge neighboring the first side edge of the at least one openable cover across a gap. One of the at least one openable cover and the at least one adjacent cover includes at least one projection projecting into the gap and another one of the at least one openable cover and the at least one adjacent cover includes a recess that accommodates the at least one projection in the gap.Type: ApplicationFiled: August 30, 2019Publication date: December 19, 2019Applicant: Ricoh Company,Ltd.Inventors: Masahiro ISHIDA, Naoki MATSUDA, Keisuke SHIMIZU, Kohta TAKENAKA
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Patent number: 10444695Abstract: A housing includes at least one openable cover and at least one adjacent cover. The at least one openable cover swings on a hinge to separate an interior of the housing from an exterior of the housing. The at least one openable cover has a first side edge on a side of the hinge. The at least one adjacent cover is adjacent to the at least one openable cover. The at least one adjacent cover has a second side edge neighboring the first side edge of the at least one openable cover across a gap. One of the at least one openable cover and the at least one adjacent cover includes at least one projection projecting into the gap and another one of the at least one openable cover and the at least one adjacent cover includes a recess that accommodates the at least one projection in the gap.Type: GrantFiled: January 25, 2017Date of Patent: October 15, 2019Assignee: RICOH COMPANY, LTD.Inventors: Masahiro Ishida, Naoki Matsuda, Keisuke Shimizu, Kohta Takenaka
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Patent number: 10078301Abstract: An image forming apparatus includes an apparatus body accommodating an image forming device, a foreign object detector that detects a foreign object beside the apparatus body, and a detector holding unit that holds the foreign object detector. The foreign object detector and the detector holding unit are movable together into the apparatus body.Type: GrantFiled: January 17, 2017Date of Patent: September 18, 2018Assignee: Ricoh Company, Ltd.Inventors: Ruki Midorikawa, Shogo Terakawa, Tetsuji Nishikawa, Hiroshi Ishii, Kohta Takenaka, Hiroaki Murakami, Hidehiko Maeda, Gaku Hosono
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Patent number: 10048628Abstract: An image forming apparatus includes an apparatus body accommodating an image forming device, a foreign object detector that detects a foreign object beside the apparatus body, and a detector holding unit that holds the foreign object detector. The foreign object detector and the detector holding unit are movable together into the apparatus body.Type: GrantFiled: January 17, 2017Date of Patent: August 14, 2018Assignee: Ricoh Company, Ltd.Inventors: Ruki Midorikawa, Shogo Terakawa, Tetsuji Nishikawa, Hiroshi Ishii, Kohta Takenaka, Hiroaki Murakami, Hidehiko Maeda, Gaku Hosono
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Patent number: 9955595Abstract: A mount board tray is provided to hold multiple mount boards at different heights above and below the mount board tray. The mount board tray holds a topmost mount board placed at the topmost position among the multiple mount boards held by the mount board tray from below the topmost mount board. The mount board tray also holds a bottommost mount board placed at the bottommost position among the multiple mount boards from above the bottommost mount board at the same time.Type: GrantFiled: June 16, 2016Date of Patent: April 24, 2018Assignee: RICOH COMPANY, LTD.Inventors: Shogo Terakawa, Tetsuji Nishikawa, Kohta Takenaka, Hiroshi Ishii, Kouta Hirakawa, Hidehiko Maeda, Gaku Hosono
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Publication number: 20170235264Abstract: An image forming apparatus includes an apparatus body accommodating an image forming device, a foreign object detector that detects a foreign object beside the apparatus body, and a detector holding unit that holds the foreign object detector. The foreign object detector and the detector holding unit are movable together into the apparatus body.Type: ApplicationFiled: January 17, 2017Publication date: August 17, 2017Applicant: Ricoh Company, Ltd.Inventors: Ruki Midorikawa, Shogo Terakawa, Tetsuji Nishikawa, Hiroshi Ishii, Kohta Takenaka, Hiroaki Murakami, Hidehiko Maeda, Gaku Hosono
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Publication number: 20170219990Abstract: A housing includes at least one openable cover and at least one adjacent cover. The at least one openable cover swings on a hinge to separate an interior of the housing from an exterior of the housing. The at least one openable cover has a first side edge on a side of the hinge. The at least one adjacent cover is adjacent to the at least one openable cover. The at least one adjacent cover has a second side edge neighboring the first side edge of the at least one openable cover across a gap. One of the at least one openable cover and the at least one adjacent cover includes at least one projection projecting into the gap and another one of the at least one openable cover and the at least one adjacent cover includes a recess that accommodates the at least one projection in the gap.Type: ApplicationFiled: January 25, 2017Publication date: August 3, 2017Applicant: Ricoh Company, Ltd.Inventors: Masahiro ISHIDA, Naoki MATSUDA, Keisuke SHIMIZU, Kohta TAKENAKA
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Publication number: 20170221469Abstract: A sound absorber includes at least one cavity and at least one mouth to communicate the at least one cavity with an outside of the sound absorber. The at least one cavity includes a top surface, a bottom surface, and a side wall. The top surface includes the mouth. The bottom surface opposes the top surface. The side wall is extended to connect the top surface with the bottom surface. At least one of the top surface and the bottom surface is inclined with respect to the side wall.Type: ApplicationFiled: January 25, 2017Publication date: August 3, 2017Applicant: Ricoh Company, Ltd.Inventors: Masahiro ISHIDA, Naoki MATSUDA, Hiroshi ISHII, Kohta TAKENAKA, Keisuke SHIMIZU, Shogo SAKAMOTO, Takayuki ISAKA
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Publication number: 20170017190Abstract: An image forming apparatus includes a body; an openably closable drawer unit including an image forming section to form an image on a recording medium; and a circuit board. The circuit board is disposed in a substantial center of the drawer unit in a direction in which the drawer unit is pulled out of the body.Type: ApplicationFiled: July 5, 2016Publication date: January 19, 2017Applicant: Ricoh Company, Ltd.Inventors: HIDEHIKO MAEDA, Tetsuji Nishikawa, Kohta Takenaka, Hiroshi Ishii, Kouta Hirakawa, Gaku Hosono, Shogo Terakawa
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Patent number: 9547274Abstract: According to an aspect of the invention, an image forming apparatus includes an apparatus body, a sound absorbing device utilizing a Helmholtz resonator, and a hinged exterior cover operable to open and close relative to the apparatus body. The hinged exterior cover is a hinged cover configured to pivot about a pivot shaft arranged at a lower end portion of the hinged exterior cover. At least a part of the hinged exterior cover has a multiplex structure made by overlaying a plurality of plate-like members on one another. The sound absorbing device is formed by utilizing space between two plate-like members of the plurality of plate-like members making up the multiplex structure as a cavity of the Helmholtz resonator.Type: GrantFiled: February 17, 2016Date of Patent: January 17, 2017Assignee: RICOH COMPANY, LIMITEDInventors: Hiroki Ishimitsu, Masahiro Ishida, Naoki Matsuda, Kohta Takenaka, Toshihiro Shimada, Wataru Hojo
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Patent number: 9533846Abstract: A drawer unit including a housing and a drawer inserted into the housing in inserting direction and drawn therefrom in drawing direction is provided. A locking member is mounted on the housing or the drawer to extend in direction intersecting the inserting direction, and is rotatable on a rotating shaft extending in the inserting direction such that when the drawer is inserted, the locking member rotates from unlock position to lock position in locking direction while rotating from the lock position to the unlock position in unlocking direction prior to drawing of the drawer. A locking wall and a pushing wall are mounted on the other of the housing and the drawer. The locking member in the lock position is engaged with the locking wall. When being rotated in the unlocking direction, the locking member is contacted with the pushing wall, which pushes the drawer in the drawing direction.Type: GrantFiled: December 29, 2015Date of Patent: January 3, 2017Assignee: RICOH COMPANY, LTD.Inventors: Hiroshi Ishii, Kohta Takenaka, Kouta Hirakawa, Hidehiko Maeda, Gaku Hosono
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Publication number: 20160381815Abstract: A mount board tray is provided to hold multiple mount boards at different heights above and below the mount board tray. The mount board tray holds a topmost mount board placed at the topmost position among the multiple mount boards held by the mount board tray from below the topmost mount board. The mount board tray also holds a bottommost mount board placed at the bottommost position among the multiple mount boards from above the bottommost mount board at the same time.Type: ApplicationFiled: June 16, 2016Publication date: December 29, 2016Applicant: Ricoh Company, Ltd.Inventors: Shogo TERAKAWA, Tetsuji NISHIKAWA, Kohta TAKENAKA, Hiroshi ISHII, Kouta HIRAKAWA, Hidehiko MAEDA, Gaku HOSONO
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Patent number: 9527692Abstract: An image forming apparatus includes an apparatus body, a sheet stack face disposed in an upper portion of the apparatus body, a pair of sheet ejection rollers to eject a sheet onto the sheet stack face in an ejection direction toward a front side of the apparatus body, a hinge secured to the apparatus body, and a control panel disposed higher than the apparatus body and supported by the hinge rotatably around the hinge. The control panel is rotatable within a movable range positioned higher than a trajectory drawn by the sheet ejected onto the sheet stack face.Type: GrantFiled: May 5, 2015Date of Patent: December 27, 2016Assignee: RICOH COMPANY, LTD.Inventors: Keiichi Shimizu, Kohta Takenaka
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Publication number: 20160221770Abstract: A drawer unit including a housing and a drawer inserted into the housing in inserting direction and drawn therefrom in drawing direction is provided. A locking member is mounted on the housing or the drawer to extend in direction intersecting the inserting direction, and is rotatable on a rotating shaft extending in the inserting direction such that when the drawer is inserted, the locking member rotates from unlock position to lock position in locking direction while rotating from the lock position to the unlock position in unlocking direction prior to drawing of the drawer. A locking wall and a pushing wall are mounted on the other of the housing and the drawer. The locking member in the lock position is engaged with the locking wall. When being rotated in the unlocking direction, the locking member is contacted with the pushing wall, which pushes the drawer in the drawing direction.Type: ApplicationFiled: December 29, 2015Publication date: August 4, 2016Applicant: Ricoh Company, Ltd.Inventors: Hiroshi ISHII, Kohta TAKENAKA, Kouta HIRAKAWA, Hidehiko MAEDA, Gaku HOSONO
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Publication number: 20160161905Abstract: According to an aspect of the invention, an image forming apparatus includes an apparatus body, a sound absorbing device utilizing a Helmholtz resonator, and a hinged exterior cover operable to open and close relative to the apparatus body. The hinged exterior cover is a hinged cover configured to pivot about a pivot shaft arranged at a lower end portion of the hinged exterior cover. At least a part of the hinged exterior cover has a multiplex structure made by overlaying a plurality of plate-like members on one another. The sound absorbing device is formed by utilizing space between two plate-like members of the plurality of plate-like members making up the multiplex structure as a cavity of the Helmholtz resonator.Type: ApplicationFiled: February 17, 2016Publication date: June 9, 2016Applicant: Richo Company, Ltd.Inventors: Hiroki ISHIMITSU, Masahiro ISHIDA, Naoki MATSUDA, Kohta TAKENAKA, Toshihiro SHIMADA, Wataru HOJO