Patents by Inventor Yutaka Koga
Yutaka Koga 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: 20240154208Abstract: This battery unit is a battery unit including a battery pack that houses a battery cell, and a water-cooling medium flow path formed outside a bottom surface of the battery pack, in which the water-cooling medium flow path of the battery pack is made of an Al-based plated steel sheet.Type: ApplicationFiled: February 4, 2022Publication date: May 9, 2024Applicant: NIPPON STEEL CORPORATIONInventors: Kyohei MIYAKE, Atsuo KOGA, Kohei UEDA, Yutaka MIKAZUKI, Katsunari NORITA, Sho MATSUI, Takashi OKE
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Publication number: 20240120595Abstract: This battery unit is a battery unit including a battery pack that houses a battery cell, and a water-cooling medium flow path formed outside a bottom surface of the battery pack, in which the water-cooling medium flow path is made of a Zn-based plated steel sheet, an inorganic film or a resin film is formed as a chemical conversion coating film on a surface of the Zn-based plated steel sheet, and the inorganic film contains a Si-based component or a Zr-based component as a main component.Type: ApplicationFiled: February 7, 2022Publication date: April 11, 2024Applicant: NIPPON STEEL CORPORATIONInventors: Kyohei MIYAKE, Atsuo KOGA, Kohei UEDA, Yutaka MIKAZUKI, Katsunari NORITA, Sho MATSUI, Takashi OKE
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Patent number: 11334002Abstract: A developing apparatus includes a developer container that stores developer, a conveyance screw including a shaft portion and a blade, a bearing portion configured to engage with an engagement portion of the shaft portion of the conveyance screw, and a magnetic seal member having a magnetic property and disposed along a peripheral surface of the shaft portion in a noncontact manner with respect to the shaft portion between the blade and the engagement portion in the rotational axis direction of the conveyance screw.Type: GrantFiled: February 26, 2019Date of Patent: May 17, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Yutaka Koga, Naoyuki Furukawa
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Patent number: 11103020Abstract: Described is sports upper clothing which as an improved cooling function and which includes a front body, a back body, and sleeves. In embodiments, each sleeve has a front portion located on a same side as the front body and a back portion located on a same side as the back body. The back portion is made of a fabric having a breathability value and the front portion has breathability value that is greater than the breathability value of the back portion.Type: GrantFiled: September 22, 2017Date of Patent: August 31, 2021Inventors: Makoto Fukuda, Kenichi Kitazume, Tatsuya Ishikawa, Mamoru Omuro, Yutaka Koga
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Patent number: 10481521Abstract: A developing device includes a rotatable developing member configured to carry a developer containing toner and a carrier to a developing position, a first frame configured to accommodate the developer, a second frame mounted on the first frame and configured to cover part of an outer peripheral surface of the rotatable developing member, and a cover portion provided opposite to the rotatable developing member. The following relationship is satisfied: L1?L2+L3, and L2?L3, where with respect to the radial direction of the rotatable developing member, L1 is a minimum of the clearance formed between the second frame and the rotatable developing member, L2 is a minimum of the clearance formed between the rotatable developing member and the cover portion, and L3 is a minimum of the clearance formed between the second frame and the cover portion.Type: GrantFiled: March 20, 2018Date of Patent: November 19, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Yukihiro Soeta, Masafumi Takahashi, Ryohei Terada, Yushi Sadamitsu, Yasuhiro Shimoi, Yutaka Koga
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Publication number: 20190278199Abstract: A developing apparatus includes a developer container that stores developer, a conveyance screw including a shaft portion and a blade, a bearing portion configured to engage with an engagement portion of the shaft portion of the conveyance screw, and a magnetic seal member having a magnetic property and disposed along a peripheral surface of the shaft portion in a noncontact manner with respect to the shaft portion between the blade and the engagement portion in the rotational axis direction of the conveyance screw.Type: ApplicationFiled: February 26, 2019Publication date: September 12, 2019Inventors: Yutaka Koga, Naoyuki Furukawa
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Patent number: 10331061Abstract: A developing device includes a rotatable developing member carrying a developer containing toner and a carrier to a developing position and a magnet provided fixedly inside the rotatable developing member and including first and second magnetic poles. A cover portion opposes the rotatable developing member. A most upstream end of the cover portion is positioned downstream of an uppermost position of the rotatable developing member and upstream of a most upstream position of a half-width of magnetic flux density of the first magnetic pole, and a most downstream end of the cover portion is positioned downstream of a first peak position and upstream of a position where the magnetic flux density of the first magnetic pole is a minimum on a side downstream of the first peak position and upstream of a second peak position where magnetic flux density of the second magnetic pole is a maximum.Type: GrantFiled: March 20, 2018Date of Patent: June 25, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Masafumi Takahashi, Ryohei Terada, Yushi Sadamitsu, Yasuhiro Shimoi, Yutaka Koga, Yukihiro Soeta
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Patent number: 10317819Abstract: A developer supplying device includes a supply driving portion supplying a developer from a developer supplying container to a developer accommodating portion, where it is agitated by an agitating conveyance portion. An agitating driving portion drives the agitating conveyance portion, and a control portion controls the supply driving portion and the agitating driving portion such that, each time the agitating conveyance portion is driven by a first driving amount, the supply driving portion is driven by a second driving amount. The control portion sets a different value of the first driving amount in accordance with a supplying property in a case where the developer is supplied from the developer supplying container to the developer accommodating portion.Type: GrantFiled: July 7, 2017Date of Patent: June 11, 2019Assignee: CANON KABUSHIKI KAISHAInventor: Yutaka Koga
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Patent number: 10126686Abstract: An image forming apparatus includes a cleaning unit for a transfer roller. A cleaning unit includes a brush roller, a rotatable member, a first blade and a second blade. The brush roller is electroconductive and contactable with the transfer roller while rotating to electrostatically attract the toner from the transfer roller. The rotatable member is supplied with a voltage of the regular charge polarity of the toner and is contacted with the brush roller in a contact position to electrostatically attract the toner from the brush roller. The first blade contacts the rotatable member in a cleaning portion to scrape a deposited matter from the rotatable member. The second blade is disposed downstream of the cleaning portion and upstream of the contact portion and scrape the deposited matter from the rotatable member with the rotation of the rotatable member.Type: GrantFiled: July 1, 2016Date of Patent: November 13, 2018Assignee: Canon Kabushiki KaishaInventors: Toshiya Fukazawa, Yutaka Koga
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Publication number: 20180284656Abstract: A developing device includes an accommodating casing, a rotatable developer carrying member, a regulating portion, a magnetic flux generating portion including a first magnetic pole and a second magnetic pole which have the same polarity, and a cover portion provided downstream of the developing region and upstream of a maximum magnetic flux density position of the second magnetic pole with respect to a rotational direction of the developer carrying member. The cover portion is disposed between the casing and the developer carrying member. A downstream end of the cover portion with respect to the rotational direction is in a side upstream, with respect to the rotational direction, of a minimum magnetic flux density position between the first magnetic pole and the second magnetic pole with respect to the rotational direction.Type: ApplicationFiled: March 20, 2018Publication date: October 4, 2018Inventors: Masafumi Takahashi, Ryohei Terada, Yushi Sadamitsu, Yasuhiro Shimoi, Yutaka Koga, Yukihiro Soeta
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Publication number: 20180284643Abstract: A developing device includes an accommodating casing, a rotatable developer carrying member, a regulating portion, a magnetic flux generating portion including a first magnetic pole and a second magnetic pole which have the same polarity, and a cover portion provided downstream of the developing region and upstream of a maximum magnetic flux density position of the second magnetic pole with respect to a rotational direction of the developer carrying member. The cover portion is disposed between the casing and the developer carrying member. A first opposing region between an inner surface of the casing and the developer carrying member is in a side downstream of the developing region and upstream of a second opposing region between the cover portion and the developer carrying member with respect to the rotational direction.Type: ApplicationFiled: March 20, 2018Publication date: October 4, 2018Inventors: Masafumi Takahashi, Ryohei Terada, Yushi Sadamitsu, Yasuhiro Shimoi, Yutaka Koga, Yukihiro Soeta
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Publication number: 20180284641Abstract: A developing device includes a developer accommodating casing, a developer carrying member, a regulating portion, a magnetic flux generating portion, and a cover portion. A first opposing region between the casing and the developer carrying member is downstream of the developing region and upstream of a second opposing region between the cover portion and the developer carrying member with respect to a rotational direction. The following relationships are satisfied: L1?L2+L3, and L2?L3, where L1 is a minimum distance between the developer carrying member and the accommodating casing in the first opposing region, L2 is a minimum distance between the developer carrying member and the cover portion in the second opposing region, and L3 is a minimum distance between the cover portion and the accommodating portion opposing the cover portion.Type: ApplicationFiled: March 20, 2018Publication date: October 4, 2018Inventors: Yukihiro Soeta, Masafumi Takahashi, Ryohei Terada, Yushi Sadamitsu, Yasuhiro Shimoi, Yutaka Koga
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Patent number: 9904236Abstract: An image forming apparatus includes a collection container for collecting toner discharged from an image forming station, the collection container being movable between a mount position in which the collection container is mounted in the apparatus and a removable position in which the collection container is removable from the apparatus; and a door provided on the apparatus to permit access into the apparatus. A track of the collection container when the collection container is moved from the mount position to the removable position overlaps a track of the door when the door is opened and closed, and when the door is in its open position, the collection container is incapable of being removed from the main assembly, and when the door is in its closed position, the collection container is removable from the main assembly.Type: GrantFiled: September 18, 2014Date of Patent: February 27, 2018Assignee: Canon Kabushiki KaishaInventors: Yushi Sadamitsu, Yutaka Koga
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Publication number: 20180017894Abstract: A developer supplying device includes a developer supplying container, a developer accommodating portion, a supply driving portion, an agitating conveyance portion, an agitating driving portion, and a control portion. The supply driving portion supplies the developer from the developer supplying container to the developer accommodating portion. The agitating conveyance portion agitates the developer in the developer accommodating portion. The agitating driving portion drives the agitating conveyance portion. The control portion controls the supply driving portion and the agitating driving portion such that, each time the agitating conveyance portion is driven by a first driving amount, the supply driving portion is driven by a second driving amount. The control portion sets a different value of the first driving amount in accordance with a supplying property in a case where the developer is supplied from the developer supplying container to the developer accommodating portion.Type: ApplicationFiled: July 7, 2017Publication date: January 18, 2018Inventor: Yutaka Koga
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Publication number: 20180007985Abstract: The present invention provides sports upper clothing which has an improved cooling function, which includes a front body, a back body and sleeves, The sleeve has a front portion located on a same side as the front body, and a back portion located on a same side as the back body. The back portion is made of a fabric having a low breathability value and the front portion has a greater breathability value than the back portion.Type: ApplicationFiled: September 22, 2017Publication date: January 11, 2018Inventors: Makoto FUKUDA, Kenichi KITAZUME, Tatsuya ISHIKAWA, Mamoru OMURO, Yutaka KOGA
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Publication number: 20170003628Abstract: An image forming apparatus includes a cleaning unit for a transfer roller. A cleaning unit includes a brush roller, a rotatable member, a first blade and a second blade. The brush roller is electroconductive and contactable with the transfer roller while rotating to electrostatically attract the toner from the transfer roller. The rotatable member is supplied with a voltage of the regular charge polarity of the toner and is contacted with the brush roller in a contact position to electrostatically attract the toner from the brush roller. The first blade contacts the rotatable member in a cleaning portion to scrape a deposited matter from the rotatable member. The second blade is disposed downstream of the cleaning portion and upstream of the contact portion and scrape the deposited matter from the rotatable member with the rotation of the rotatable member.Type: ApplicationFiled: July 1, 2016Publication date: January 5, 2017Inventors: Toshiya Fukazawa, Yutaka Koga
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Patent number: 9442409Abstract: An image forming apparatus includes, a unit including at least a photosensitive member and a charging member detachable from a main body of the image forming apparatus, a current detection unit configured to detect a current flowing between the charging member and the photosensitive member, an operation unit configured to be operated by an operator to give an instruction to the image forming apparatus, a display unit provided in the operation unit, and a control unit configured to apply to the charging member a predetermined test voltage having an absolute value greater than a discharge starting voltage based on the instruction from the operation unit, and to perform an operation in a mode for causing the current detection unit to detect a current, wherein the control unit determines, based on the current detected in the mode, whether an error indication is to be given on the display unit.Type: GrantFiled: September 25, 2014Date of Patent: September 13, 2016Assignee: CANON KABUSHIKI KAISHAInventors: Masami Hano, Yutaka Koga
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Patent number: 9402426Abstract: Patterns for bodies and sleeves are devised to reduce the pull of the bodies from the sleeves when an arm is moved up, down, forward and backward. In an upper garment 1, portions 67 and 87 to be sewn to a first sewing reference position 6 on a front body 2 in a front portion to be sewn 54 in a front sleeve portion 51 project toward the front body 2 relative to a shoulder point SP, and project toward the front body 2 relative to a boundary point 65 between the front portion to be sewn 54 and the first end portion to be sewn 6, and portions 72 and 89 to be sewn to a second sewing reference position 12 on a back body 3 in a back portion to be sewn 55 in a back sleeve portion 52 project toward the back body 3 relative to the shoulder point SP, and project toward the back body 3 relative to a boundary point 70 between the back portion to be sewn 55 and the second end portion to be sewn 12.Type: GrantFiled: April 10, 2008Date of Patent: August 2, 2016Assignee: ASICS CORPORATIONInventors: Yutaka Koga, Yoshikuni Takamoto, Mamoru Omuro, Makoto Katsu
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Patent number: 9354554Abstract: An image forming apparatus includes a first feeding path configured to feed toner collected from an image forming station, a collection container detachably mountable to the image forming apparatus and configured to accommodate the collected toner fed through the first feeding path, and a shutter unit including a second feeding path movably connected with the first feeding path and capable of connecting with the collection container. A shutter is configured to open and close a connecting portion between the second feeding path and the collection container by sliding in a direction crossing with the second feeding path in response to mounting and demounting of the collection container.Type: GrantFiled: October 24, 2014Date of Patent: May 31, 2016Assignee: CANON KABUSHIKI KAISHAInventors: Yushi Sadamitsu, Yutaka Koga
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Patent number: 9348274Abstract: An image forming apparatus includes: an image forming device; a fixing device; a first feeding path configured to discharge the recording material so that a fixed toner image is directed upwardly; a second feeding path, branching from the first feeding path, configured to discharge the recording material so that the fixed toner image is directed downwardly; a first rotatable member pair, provided in the first feeding path, configured to discharge the recording material; a second rotatable member pair, provided in the second feeding path, configured to discharge the recording material; a first air-blowing mechanism configured to blow air so as to cross the second feeding path when the recording material is discharged using the first feeding path; and a second air-blowing mechanism configured to blow air so as to cross the first feeding path when the recording material is discharged using the second feeding path.Type: GrantFiled: May 20, 2015Date of Patent: May 24, 2016Assignee: Canon Kabushiki KaishaInventor: Yutaka Koga