Patents by Inventor Hiroshi Miyamoto
Hiroshi Miyamoto 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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Publication number: 20240126193Abstract: An image forming apparatus includes a first rotatable member, a second rotatable member, an air nozzle, and a pipe. The pipe includes a portion provided in a range overlapping with the first rotatable member and making one reciprocation or more in a case that when a direction crossing a feeding direction of a recording material fed in a nip is a widthwise direction of the first rotatable member, the pipe is viewed in a direction perpendicular to the widthwise direction.Type: ApplicationFiled: September 5, 2023Publication date: April 18, 2024Inventors: YASUHARU TORATANI, SHUTARO SAITO, KEISUKE YOSHIDA, YUYA YAMADA, TAKU ASHIDA, ASUNA FUKAMACHI, SHOHEI TSUZAKI, YUSUKE YAMAGUCHI, HIROSHI MIYAMOTO
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Publication number: 20240126194Abstract: An image forming apparatus includes a first rotatable member, a second rotatable member, an air nozzle, and a pipe. The pipe includes a portion extending along a widthwise direction of the first rotatable member perpendicular to a recording material feeding direction.Type: ApplicationFiled: September 12, 2023Publication date: April 18, 2024Inventors: SHUTARO SAITO, KEISUKE YOSHIDA, YUYA YAMADA, TAKU ASHIDA, ASUNA FUKAMACHI, YUSUKE YAMAGUCHI, SHOHEI TSUZAKI, HIROSHI MIYAMOTO, YASUHARU TORATANI
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Publication number: 20240126197Abstract: An image forming apparatus includes a reception unit to receive a job, heating and pressing rotary members to form a nip portion, and a spraying member having a nozzle and a cylinder. The nozzle discharges air to the heating rotary member and a recording material. During a period after the reception unit receives the job and before a leading edge of a first sheet of the recording material reaches the nip portion, the spraying member performs a spraying operation of spraying air in an amount greater than or equal to a predetermined amount. The air that the spraying member sprays on the first sheet of the recording material during the job is higher in temperature than the air that the spraying member sprays during the period after the reception unit receives the job and before the leading edge of the first sheet of the recording material reaches the nip portion.Type: ApplicationFiled: October 12, 2023Publication date: April 18, 2024Inventors: SHOHEI TSUZAKI, ASUNA FUKAMACHI, YUSUKE YAMAGUCHI, HIROSHI MIYAMOTO, YASUHARU TORATANI, KEISUKE YOSHIDA, SHUTARO SAITO, YUYA YAMADA, TAKU ASHIDA
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Patent number: 11960224Abstract: A fixing device includes an endless belt, a rotatable pressing member, a pad member inside of the belt, and a sliding member held by the pad member and sliding on an inner circumferential surface of the belt in a nip. The rotatable pressing member nips and feeds a recording material in the nip in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure. The sliding member includes a base material layer on which a plurality of projections projecting toward the rotatable pressing member are formed on a side sliding with the belt and a sliding layer provided on an outer surface of the plurality of projections. A leading end of the plurality of projections is a plane and an average roughness (Ra) of the plane satisfies 0.13 ?m?Ra?1.67 ?m.Type: GrantFiled: February 16, 2023Date of Patent: April 16, 2024Assignee: CANON KABUSHIKI KAISHAInventors: Akiyoshi Shinagawa, Yasuharu Toratani, Hiroshi Miyamoto, Daigo Matsuura, Hiroki Kawai, Ayano Ogata, Masanobu Tanaka, Asuna Fukamachi, Misa Kawashima
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Patent number: 11938565Abstract: The laser welding device includes a laser transmission window and a gas injection nozzle. The gas injection nozzle includes an optical path hole and an injection unit that injects an inert gas for shielding metal vapor into the optical path hole toward an irradiation direction side and an optical axis side of a laser beam.Type: GrantFiled: December 4, 2019Date of Patent: March 26, 2024Assignee: AISIN FUKUI CORPORATIONInventors: Kouji Takemoto, Kazuyoshi Miyamoto, Tomoaki Yoshida, Daichi Sumimori, Hiroshi Hasegawa
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Patent number: 11833831Abstract: An ink-jet printing apparatus includes an ink-cartridge mounting unit to which an ink cartridge having a first ink chamber containing ink is to be mounted, and a second ink chamber. The second ink chamber stores ink supplied from the first ink chamber. The ink-jet printing apparatus is configured such that, in a case where the ink cartridge is mounted to the ink-cartridge mounting unit, the second ink chamber can be viewed from outside of the ink-jet printing apparatus. An equation 0.5 L?d?1.2 L is satisfied, where d is a length of the second ink chamber, and L is a length of the ink cartridge in a direction in which the ink cartridge is inserted into the ink-jet printing apparatus.Type: GrantFiled: October 10, 2022Date of Patent: December 5, 2023Assignee: Canon Kabushiki KaishaInventors: Hiroshi Miyamoto, Yasunori Takei
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Patent number: 11754016Abstract: A fuel injection control device and a fuel injection control method for an internal combustion engine according to the present invention correct a basic pulse width by a cylinder-specific correction value that is based on injection variations among fuel injection valves to specify a cylinder-specific pulse width, determine whether or not a split number is acceptable based on a minimum pulse width and a pulse width per one injection calculated from the cylinder-specific pulse width and the split number to modify the split number based on a result of the acceptance determination, modify an acceptance determination reference value which is used in the acceptance determination based on the correction value for each cylinder, and execute split injection based on the split number, the basic pulse width, and the correction value for each cylinder.Type: GrantFiled: March 9, 2021Date of Patent: September 12, 2023Assignee: Hitachi Astemo, Ltd.Inventors: Kazuya Saito, Hiroshi Miyamoto
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Publication number: 20230273550Abstract: A fixing device includes an endless belt, a rotatable pressing member, a pad member inside of the belt, and a sliding member held by the pad member and sliding on an inner circumferential surface of the belt in a nip. The rotatable pressing member nips and feeds a recording material in the nip in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure. The sliding member includes a base material layer on which a plurality of projections projecting toward the rotatable pressing member are formed on a side sliding with the belt and a sliding layer provided on an outer surface of the plurality of projections. A leading end of the plurality of projections is a plane and an average roughness (Ra) of the plane satisfies 0.13 ?m?Ra?1.67 ?m.Type: ApplicationFiled: February 16, 2023Publication date: August 31, 2023Inventors: AKIYOSHI SHINAGAWA, YASUHARU TORATANI, HIROSHI MIYAMOTO, DAIGO MATSUURA, HIROKI KAWAI, AYANO OGATA, MASANOBU TANAKA, ASUNA FUKAMACHI, MISA KAWASHIMA
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Publication number: 20230273554Abstract: A fixing device includes an endless belt, a rotatable pressing member contacting an outer circumferential surface of the belt, and a sliding member inside of the belt. The sliding member forms a nip portion by nipping and feeding the belt between itself and the rotatable pressing member and slides on an inner circumferential surface of the belt. The rotatable pressing member nips and feeds the recording material in the nip portion in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure. The sliding member includes a substrate extending in a widthwise direction of the belt, and the substrate is made of metal and includes a plurality of projections projecting toward the rotatable pressing member.Type: ApplicationFiled: January 30, 2023Publication date: August 31, 2023Inventors: DAIGO MATSUURA, YASUHARU TORATANI, AKIYOSHI SHINAGAWA, HIROSHI MIYAMOTO, AYANO OGATA, HIROKI KAWAI, MASANOBU TANAKA, ASUNA FUKAMACHI, MISA KAWASHIMA
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Publication number: 20230273555Abstract: A fixing device includes an endless belt, a rotatable pressing member, a pad member inside of the belt, and a sliding member held by the pad member and sliding on an inner circumferential surface of the belt in a nip. The rotatable pressing member nips and feeds a recording material in the nip in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure. The sliding member includes a base material layer on which a plurality of projections projecting toward the rotatable pressing member are formed on a side sliding with the belt and a sliding layer provided on an outer surface of the plurality of projections. A shape of a surface of the sliding layer is a curved surface and a radius of curvature R of the curved surface satisfies 300 µm ? R ? 850 µm.Type: ApplicationFiled: February 9, 2023Publication date: August 31, 2023Inventors: HIROKI KAWAI, YASUHARU TORATANI, HIROSHI MIYAMOTO, AKIYOSHI SHINAGAWA, AYANO OGATA, DAIGO MATSUURA, MISA KAWASHIMA, MASANOBU TANAKA, ASUNA FUKAMACHI
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Publication number: 20230273556Abstract: A fixing device includes a fixing belt configured to heat a recording material, a pressure member configured to press the fixing belt, and a sliding member configured to be in sliding contact with an inner peripheral surface of the fixing belt and being opposed to the pressure member. The pressure member and the fixing belt form a fixing nip portion, and heat and pressure are applied to the recording material at the fixing nip portion to fix a toner image onto the recording material. The sliding member includes a plurality of protrusions on a surface of the sliding member that is in sliding contact with the inner peripheral surface of the fixing belt. The following expressions are satisfied: The fixing belt satisfies the prescribed formula.Type: ApplicationFiled: February 13, 2023Publication date: August 31, 2023Inventors: YASUHARU TORATANI, AKIYOSHI SHINAGAWA, HIROSHI MIYAMOTO, DAIGO MATSUURA, HIROKI KAWAI, AYANO OGATA, ASUNA FUKAMACHI, MASANOBU TANAKA, MISA KAWASHIMA
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Publication number: 20230119411Abstract: A fuel injection control device and a fuel injection control method for an internal combustion engine according to the present invention correct a basic pulse width by a cylinder-specific correction value that is based on injection variations among fuel injection valves to specify a cylinder-specific pulse width, determine whether or not a split number is acceptable based on a minimum pulse width and a pulse width per one injection calculated from the cylinder-specific pulse width and the split number to modify the split number based on a result of the acceptance determination, modify an acceptance determination reference value which is used in the acceptance determination based on the correction value for each cylinder, and execute split injection based on the split number, the basic pulse width, and the correction value for each cylinder.Type: ApplicationFiled: March 9, 2021Publication date: April 20, 2023Inventors: Kazuya SAITO, Hiroshi MIYAMOTO
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Publication number: 20230116519Abstract: An ink-jet printing apparatus includes an ink-cartridge mounting unit to which an ink cartridge having a first ink chamber containing ink is to be mounted, and a second ink chamber. The second ink chamber stores ink supplied from the first ink chamber. The ink-jet printing apparatus is configured such that, in a case where the ink cartridge is mounted to the ink-cartridge mounting unit, the second ink chamber can be viewed from outside of the ink-jet printing apparatus. An equation 0.5 L ? d ? 1.2 L is satisfied, where d is a length of the second ink chamber, and L is a length of the ink cartridge in a direction in which the ink cartridge is inserted into the ink-jet printing apparatus.Type: ApplicationFiled: October 10, 2022Publication date: April 13, 2023Inventors: Hiroshi Miyamoto, Yasunori Takei
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Patent number: 11554593Abstract: An inkjet recording apparatus includes a printing portion configured to discharge ink on a sheet, a drying portion configured to blow warm air to the sheet to dry ink, a first rotary member is in contact with the first surface of the sheet, a heating portion configured to heat the first rotary member, a second rotary member configured to form a nip portion that apply heat and pressure to the sheet, a first detection unit configured to detect a temperature of the first rotary member, a second detection unit configured to detect a temperature of the second rotary member, a cooling unit configured to cool the second rotary member, and a control unit configured to execute a cooling mode of activating the cooling unit in a state where a temperature difference between the first rotary member and the second rotary member is smaller than a threshold.Type: GrantFiled: July 2, 2021Date of Patent: January 17, 2023Assignee: Canon Kabushiki KaishaInventor: Hiroshi Miyamoto
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Patent number: 11498339Abstract: An ink-jet printing apparatus includes an ink-cartridge mounting unit to which an ink cartridge having a first ink chamber containing ink is to be mounted, and a second ink chamber. The second ink chamber stores ink supplied from the first ink chamber. The ink-jet printing apparatus is configured such that, in a case where the ink cartridge is mounted to the ink-cartridge mounting unit, the second ink chamber can be viewed from outside of the ink-jet printing apparatus. An equation 0.5?L?d?1.2 L is satisfied, where d is a length of the second ink chamber, and L is a length of the ink cartridge in a direction in which the ink cartridge is inserted into the ink-jet printing apparatus.Type: GrantFiled: January 20, 2021Date of Patent: November 15, 2022Assignee: Canon Kabushiki KaishaInventors: Hiroshi Miyamoto, Yasunori Takei
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Publication number: 20220178070Abstract: In order to manufacture a cotton-containing product of a cotton material, when the cotton material is refined and bleached in the state of a sliver, heating is performed, with steam, on the cotton material with a chemical agent applied to the cotton material, and, when the heating is performed, the steam is applied to the cotton material in the state of a sliver sheet formed by arranging the sliver in a sheet shape.Type: ApplicationFiled: December 23, 2019Publication date: June 9, 2022Inventors: Hiroshi MIYAMOTO, Motohisa NOMA, Masataka OSHIMA, Yoji SUZUKI
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Publication number: 20220016913Abstract: An inkjet recording apparatus includes a printing portion configured to discharge ink on a sheet, a drying portion configured to blow warm air to the sheet to dry ink, a first rotary member is in contact with the first surface of the sheet, a heating portion configured to heat the first rotary member, a second rotary member configured to form a nip portion that apply heat and pressure to the sheet, a first detection unit configured to detect a temperature of the first rotary member, a second detection unit configured to detect a temperature of the second rotary member, a cooling unit configured to cool the second rotary member, and a control unit configured to execute a cooling mode of activating the cooling unit in a state where a temperature difference between the first rotary member and the second rotary member is smaller than a threshold.Type: ApplicationFiled: July 2, 2021Publication date: January 20, 2022Inventor: Hiroshi Miyamoto
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Patent number: 11162443Abstract: An evaporated fuel processing device for a forced induction internal combustion engine according to the present invention includes: a first purge path extending from the downstream of a purge control valve to an intake pipe at the downstream of a throttle valve; and a second purge path extending from the downstream of the purge control valve to an ejector provided in a reflux pipe providing communication between the intake pipe at the downstream of a compressor and the intake pipe at the upstream of the compressor. The evaporated fuel processing device switches first control characteristic data for the first purge path and second control characteristic data for the second purge path, when the first purge path and the second purge path are switched.Type: GrantFiled: September 13, 2018Date of Patent: November 2, 2021Assignee: Hitachi Astemo, Ltd.Inventors: Kenji Mizushima, Shinsaku Tsukada, Hiroshi Miyamoto, Shingo Kimura, Ho Tei
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Patent number: 10920704Abstract: An abnormality diagnosis system of an air-fuel ratio sensor acquires a blowby gas flow ratio showing a ratio of the flow of blowby gas to the flow of gas to a combustion chamber and an output current of an air-fuel ratio sensor during fuel cut control in which an internal combustion engine stops the feed of fuel to the combustion chamber and at a plurality of points of time of different flows of blowby gas passing through a blowby gas passage and flowing to the downstream side of a throttle valve in the intake passage, calculate an output current of the air-fuel ratio sensor corresponding to a blowby gas flow ratio smaller than the blowby gas flow ratios acquired at the plurality of points of time, based on the acquired blowby gas flow ratio and output current, and judge the air-fuel ratio sensor for abnormality based on the calculated output current.Type: GrantFiled: November 9, 2015Date of Patent: February 16, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi Miyamoto, Toru Kidokoro, Yasushi Iwazaki, Kenji Suzuki
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Patent number: 10877412Abstract: A fixing device including an endless belt, a heat source, a rotatable member forming a nip together with a belt, a nip forming member, a contact member contacting an inner peripheral surface of the belt, a reflecting portion reflecting radiation heat from the heat source toward the nip forming member, a heat conducting portion, and a heat insulating member. The nip forming member includes a first member having a U-shape made of metal and open on a side opposite from the rotatable member and a second member provided inside the first member. The heat conducting portion conducts heat of the reflecting portion to the contact member. The heat insulating member is provided between the first member and the second member. A thickness t (?m) and thermal conductivity ? (W/m·K) of the heat insulating member satisfy: t?100 (?m) 0.02 (W/m·K)???0.05 (W/m·K).Type: GrantFiled: January 10, 2020Date of Patent: December 29, 2020Assignee: Canon Kabushiki KaishaInventors: Ryo Yashiro, Shuichi Tamura, Hiroshi Miyamoto, Naoyuki Yamamoto, Shinsuke Takahashi