Patents by Inventor Hiroki ISHIMITSU
Hiroki ISHIMITSU 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: 11513472Abstract: An image forming apparatus configured to perform simplex printing and duplex printing includes a recording medium ejection device, a suction duct, a blower, and a pair of rotating members. The recording medium ejection device includes a recording medium outlet through which a recording medium is ejected outside of the image forming apparatus and a recording medium reverse port through which a part of the recording medium is ejected to reverse the recording medium in the duplex printing. The suction duct includes a suction port to suck air. The blower is disposed in the suction duct and sucks air from the recording medium ejection device to the suction port. The pair of rotating members is disposed between the suction port and at least one of the recording medium outlet and the recording medium reverse port and reverses both sides of the recording medium in the duplex printing.Type: GrantFiled: September 28, 2020Date of Patent: November 29, 2022Assignee: Ricoh Company, Ltd.Inventors: Taisuke Ishikawa, Junichi Murano, Hiroki Ishimitsu
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Patent number: 11226587Abstract: An image forming apparatus includes a housing, a conveying member not used in simplex printing, a duct, a blower, and control circuitry. The duct includes an intake and an opening. The intake is disposed at a first end of the duct. The intake sucks air from outside of the image forming apparatus. The opening is disposed at a second end of the duct different from the first end of the duct. The duct is disposed opposite the conveying member. The blower is disposed in the duct. The blower blows air sucked from the intake to the conveying member through the opening. The control circuitry controls the blower to blow air to the conveying member at least in the simplex printing.Type: GrantFiled: September 22, 2020Date of Patent: January 18, 2022Assignee: RICOH COMPANY, LTD.Inventors: Taisuke Ishikawa, Junichi Murano, Hiroki Ishimitsu
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Publication number: 20210096508Abstract: An image forming apparatus includes a housing, a conveying member not used in simplex printing, a duct, a blower, and control circuitry. The duct includes an intake and an opening. The intake is disposed at a first end of the duct. The intake sucks air from outside of the image forming apparatus. The opening is disposed at a second end of the duct different from the first end of the duct. The duct is disposed opposite the conveying member. The blower is disposed in the duct. The blower blows air sucked from the intake to the conveying member through the opening. The control circuitry controls the blower to blow air to the conveying member at least in the simplex printing.Type: ApplicationFiled: September 22, 2020Publication date: April 1, 2021Applicant: Ricoh Company, Ltd.Inventors: Taisuke ISHIKAWA, Junichi MURANO, Hiroki ISHIMITSU
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Publication number: 20210096509Abstract: An image forming apparatus configured to perform simplex printing and duplex printing includes a recording medium ejection device, a suction duct, a blower, and a pair of rotating members. The recording medium ejection device includes a recording medium outlet through which a recording medium is ejected outside of the image forming apparatus and a recording medium reverse port through which a part of the recording medium is ejected to reverse the recording medium in the duplex printing. The suction duct includes a suction port to suck air. The blower is disposed in the suction duct and sucks air from the recording medium ejection device to the suction port. The pair of rotating members is disposed between the suction port and at least one of the recording medium outlet and the recording medium reverse port and reverses both sides of the recording medium in the duplex printing.Type: ApplicationFiled: September 28, 2020Publication date: April 1, 2021Applicant: Ricoh Company, Ltd.Inventors: Taisuke ISHIKAWA, Junichi MURANO, Hiroki ISHIMITSU
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Publication number: 20210041828Abstract: An apparatus body structure is installed on a floor surface. The apparatus body structure includes at least one side plate. The at least one side plate is installed on the floor surface and includes an upper side plate and a lower side plate. The lower side plate is detachably joined to a lower side of the upper side plate. A floor surface installation position of the lower side plate to be installed on the floor surface is positioned directly below a floor surface installation position of the upper side plate to be installed on the floor surface, when the upper side plate is directly installed on the floor surface without being joined to the lower side plate.Type: ApplicationFiled: August 4, 2020Publication date: February 11, 2021Applicant: Ricoh Company, Ltd.Inventors: Hiroki ISHIMITSU, Taisuke ISHIKAWA, Junichi MURANO
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Publication number: 20210041827Abstract: A body structure of an image forming apparatus, which includes a printer, a reader, and a paper processing unit located between the printer and the reader, includes a housing for the paper processing unit, independently provided above a housing of the printer.Type: ApplicationFiled: July 29, 2020Publication date: February 11, 2021Applicant: Ricoh Company, Ltd.Inventors: Junichi MURANO, Hiroki ISHIMITSU, Taisuke ISHIKAWA
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Publication number: 20200301349Abstract: A connecting device includes a connected member and a connecting member connected to the connected member. The connecting member includes a contact portion contacting a surface of the connected member and a flat spring sandwiching the connected member together with the contact portion. The connected member includes a passage hole through which the contact portion passes, a communication hole communicating with the passage hole and narrower than the passage hole, and a holding portion disposed around the communicating hole. The holding portion holds the contact portion.Type: ApplicationFiled: March 9, 2020Publication date: September 24, 2020Applicant: Ricoh Company, Ltd.Inventors: Taisuke ISHIKAWA, Junichi MURANO, Hiroki ISHIMITSU
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Patent number: 10606209Abstract: A housing includes a body portion, including an opening, and a cover portion that covers the opening. The cover portion includes a first cover and a second cover that is perpendicular to the first cover. The first cover includes a cover body that is platy. A projection projects from the cover body. A first attachment is mounted on the projection and attaches the first cover to the body portion. A second attachment is disposed on the first attachment and attaches the second cover to the first cover.Type: GrantFiled: January 10, 2019Date of Patent: March 31, 2020Assignee: RICOH COMPANY, LTD.Inventors: Hiroki Ishimitsu, Shiro Akama, Tsuyoshi Endo, Tatsuya Suzuki
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Publication number: 20190286047Abstract: A housing includes a body portion, including an opening, and a cover portion that covers the opening. The cover portion includes a first cover and a second cover that is perpendicular to the first cover. The first cover includes a cover body that is platy. A projection projects from the cover body. A first attachment is mounted on the projection and attaches the first cover to the body portion. A second attachment is disposed on the first attachment and attaches the second cover to the first cover.Type: ApplicationFiled: January 10, 2019Publication date: September 19, 2019Applicant: Ricoh Company, Ltd.Inventors: Hiroki ISHIMITSU, Shiro AKAMA, Tsuyoshi ENDO, Tatsuya SUZUKI
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Patent number: 10146175Abstract: An image forming apparatus includes a scanner to read an image on an original and an electric box disposed below the scanner and extended horizontally with respect to the scanner. The electric box includes an electric cabinet having a box shape and an electrical device disposed inside the electric cabinet.Type: GrantFiled: August 4, 2016Date of Patent: December 4, 2018Assignee: Ricoh Company, Ltd.Inventors: Hiroki Ishimitsu, Katsuhiro Hoshi, Takayuki Nishi, Kazuyuki Ito, Yoshihide Ohta, Nobuhiro Shima
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Patent number: 10038800Abstract: An image forming apparatus includes an outer cover, an interior device spaced apart from the outer cover, and an accommodating recess interposed between the outer cover and the interior device. The accommodating recess accommodates an arbitrary part of the image forming apparatus.Type: GrantFiled: August 3, 2016Date of Patent: July 31, 2018Assignee: RICOH COMPANY, LTD.Inventors: Hiroaki Murakami, Nobuhiro Shima, Yoshihide Ohta, Hiroki Ishimitsu, Kazuyuki Ito, Katsuhiro Hoshi, Takayuki Nishi
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Patent number: 9880512Abstract: An image forming apparatus includes an electric wire and an electric box. The electric box extends substantially horizontally and includes a wire connector coupled to the electric wire. A body face exposes the wire connector. An outer cover covers the body face. The outer cover includes a slot and a wire accommodator. The slot is disposed opposite the wire connector to expose the wire connector to an outside of the image forming apparatus. The wire accommodator accommodates the electric wire.Type: GrantFiled: August 3, 2016Date of Patent: January 30, 2018Assignee: Ricoh Company, Ltd.Inventors: Keiichi Shimizu, Hiroki Ishimitsu, Kazuyuki Ito, Takayuki Nishi, Katsuhiro Hoshi, Yoshihide Ohta, Nobuhiro Shima
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Patent number: 9736327Abstract: An image forming apparatus includes a first human body detector, a second human body detector, and a controller. The first human body detector has a first detection span to detect a human body to output a signal. The second human body detector has a second detection span to detect a human body to output a signal. The controller changes a state of the image forming apparatus from a standby state to an operation state in accordance with the output signal from each of the first human body detector and the second human body detector. A first center line of the first detection span intersects with a second center line of the second detection span at a portion where the first detection span and the second detection span overlap with each other in a planar view.Type: GrantFiled: December 21, 2015Date of Patent: August 15, 2017Assignee: Ricoh Company, Ltd.Inventors: Mami Akiyama, Yuki Sato, Shiro Akama, Yuta Ueda, Hiroki Ishimitsu, Sakie Higuchi
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Patent number: 9711125Abstract: A sound absorbing device including a Helmholtz resonator having a projection part which includes a shape of protruding from an outer wall surface of a communicating part forming plate among the communicating part forming plate and a cavity forming member that are cavity part forming members forming a cavity part of the Helmholtz resonator, and surrounding an opening of a communicating part that causes the cavity part to communicate with the outside.Type: GrantFiled: June 13, 2016Date of Patent: July 18, 2017Assignee: RICOH COMPANY, LIMITEDInventors: Kouta Hirakawa, Junichi Murano, Shoji Asanuma, Toshihiro Shimada, Tsuyoshi Endo, Hiroki Ishimitsu, Masahiro Ishida, Naoki Matsuda
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Patent number: 9665062Abstract: A housing structure includes an exterior cover having an opening through which an interior of the exterior cover communicates with an exterior of the exterior cover, an interior cover disposed inside the exterior cover and facing the exterior cover with a clearance secured therebetween, an inward projection projecting from the exterior cover to the interior cover, and an outward projection projecting from the interior cover to the exterior cover. The inward projection and the outward projection define an airflow passage in the clearance between the exterior cover and the interior cover, and the airflow passage includes multiple bent portions. The outward projection is greater in width than the inward projection in an airflow direction toward the opening, and the airflow direction perpendicular to a direction in which the interior cover faces the exterior cover.Type: GrantFiled: December 2, 2015Date of Patent: May 30, 2017Assignee: RICOH COMPANY, LTD.Inventors: Shiro Akama, Yuki Sato, Mami Akiyama, Yuta Ueda, Hiroki Ishimitsu, Sakie Higuchi
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Patent number: 9632468Abstract: An arrangement structure of a main power switch includes an apparatus body, the main power switch, and a movable member. The apparatus body has a dead space on a front side. The main power switch is disposed in the dead space. The movable member is disposed in the apparatus body to cover the main power switch. The movable member is drawable from the apparatus body in a horizontal direction. The movable member includes an opening opposed to the main power switch, to expose the main power switch to outside.Type: GrantFiled: December 21, 2015Date of Patent: April 25, 2017Assignee: Ricoh Company, Ltd.Inventors: Yuta Ueda, Yuki Sato, Mami Akiyama, Shiro Akama, Hiroki Ishimitsu, Sakie Higuchi
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Publication number: 20170064109Abstract: An image forming apparatus includes a scanner to read an image on an original and an electric box disposed below the scanner and extended horizontally with respect to the scanner. The electric box includes an electric cabinet having a box shape and an electrical device disposed inside the electric cabinet.Type: ApplicationFiled: August 4, 2016Publication date: March 2, 2017Applicant: Ricoh Company, Ltd.Inventors: Hiroki Ishimitsu, Katsuhiro Hoshi, Takayuki Nishi, Kazuyuki Ito, Yoshihide Ohta, Nobuhiro Shima
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Publication number: 20170064106Abstract: An image forming apparatus includes an outer cover, an interior device spaced apart from the outer cover, and an accommodating recess interposed between the outer cover and the interior device. The accommodating recess accommodates an arbitrary part of the image forming apparatus.Type: ApplicationFiled: August 3, 2016Publication date: March 2, 2017Applicant: Ricoh Company, Ltd.Inventors: Hiroaki MURAKAMI, Nobuhiro SHIMA, Yoshihide OHTA, Hiroki ISHIMITSU, Kazuyuki ITO, Katsuhiro HOSHI, Takayuki NISHI
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Publication number: 20170060075Abstract: An image forming apparatus includes an electric wire and an electric box. The electric box extends substantially horizontally and includes a wire connector coupled to the electric wire. A body face exposes the wire connector. An outer cover covers the body face. The outer cover includes a slot and a wire accommodator. The slot is disposed opposite the wire connector to expose the wire connector to an outside of the image forming apparatus. The wire accommodator accommodates the electric wire.Type: ApplicationFiled: August 3, 2016Publication date: March 2, 2017Applicant: Ricoh Company, Ltd.Inventors: Keiichi SHIMIZU, Hiroki ISHIMITSU, Kazuyuki ITO, Takayuki NISHI, Katsuhiro HOSHI, Yoshihide OHTA, Nobuhiro SHIMA
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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