Patents by Inventor Kiyotaka Naito
Kiyotaka Naito 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: 9885979Abstract: A toner filling apparatus includes a filling tank, a toner filling path forming member, a toner fluidizing unit, a filling path opening/closing unit and a container room sucking unit. The toner filling path forming member is in communication with the filling tank and forms a toner filling path connected to the toner container. The container room sucking unit sucks air from the toner container through a filter member which is impermeable to the toner but permeable to air. When the toner fluidizing unit fluidizes the toner in the filling tank and the filling path opening/closing unit opens the toner filling path so as to load the toner to the toner container, the container room sucking unit reduces a pressure in the toner container to a negative pressure so as to draw in the toner into the toner container.Type: GrantFiled: March 16, 2016Date of Patent: February 6, 2018Assignee: KONICA MINOLTA, INC.Inventors: Toru Toda, Katsumi Tashiro, Takeshi Arai, Masaaki Kondo, Kiyotaka Naito
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Publication number: 20160274497Abstract: A toner filling apparatus includes a filling tank, a toner filling path forming member, a toner fluidizing unit, a filling path opening/closing unit and a container room sucking unit. The toner filling path forming member is in communication with the filling tank and forms a toner filling path connected to the toner container. The container room sucking unit sucks air from the toner container through a filter member which is impermeable to the toner but permeable to air. When the toner fluidizing unit fluidizes the toner in the filling tank and the filling path opening/closing unit opens the toner filling path so as to load the toner to the toner container, the container room sucking unit reduces a pressure in the toner container to a negative pressure so as to draw in the toner into the toner container.Type: ApplicationFiled: March 16, 2016Publication date: September 22, 2016Applicant: KONICA MINOLTA, INC.Inventors: TORU TODA, Katsumi TASHIRO, Takeshi ARAI, Masaaki KONDO, Kiyotaka NAITO
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Patent number: 8155568Abstract: A toner container for replenishing toner to an image forming apparatus, including: a container main body having a toner outlet and a toner conveyance device which conveys the toner toward the toner outlet through rotation; a cap which covers the toner outlet and has a toner ejecting section; a toner ejecting member which conveys the toner from the container main body to the cap; and a holding ring which is fixed with the toner ejecting member, wherein the container main body has a first engagement member which engages with an engagement section of the holding ring such that the container main body, rotates together with the holding ring and the toner ejecting member, and wherein the cap has a second engagement member which engages with the holding ring such that the holding ring and the toner ejecting member are rotatable.Type: GrantFiled: May 1, 2009Date of Patent: April 10, 2012Assignee: Konica Minolta Business Technologies, Inc.Inventors: Kiyotaka Naito, Yoshihiko Toyoizumi, Tatsuo Nakanishi
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Patent number: 7983592Abstract: A toner container for replenishing toner to an image forming apparatus including: a container main body which comprises a toner storage section and a toner outlet; a cap that covers the toner outlet; and a seal member that is interposed between the container main body and the cap to prevent toner leakage, wherein the container main body has a step portion formed between the toner storage section and the toner outlet, and the seal member is fixed on the step portion to be interposed between the step portion and the cap.Type: GrantFiled: May 1, 2009Date of Patent: July 19, 2011Assignee: Konica Minolta Business Technologies, Inc.Inventors: Kiyotaka Naito, Yoshihiko Toyoizumi, Tatsuo Nakanishi
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Patent number: 7962070Abstract: Provided is a replenisher developer cartridge for a trickle developing system image forming apparatus producing no image problem such as image density unevenness, image roughness or the like. Not only an image forming apparatus by which high quality images are stably output, and a replenisher developer cartridge for the image forming apparatus were possible to be provided, but also durability of a two-component developer used in the image forming apparatus was possible to be improved, by replenishing the image forming apparatus with a replenisher developer in the carrier concentration range of 5-30% by weight in terms of the mean value, and in the carrier concentration deviation range of 10% by weight or less, based on the replenisher developer.Type: GrantFiled: February 2, 2010Date of Patent: June 14, 2011Assignee: Konica Minolta Business Technologies, Inc.Inventors: Haruo Takeshita, Kiyotaka Naito
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Publication number: 20100202802Abstract: Provided is a replenisher developer cartridge for a trickle developing system image forming apparatus producing no image problem such as image density unevenness, image roughness or the like. Not only an image forming apparatus by which high quality images are stably output, and a replenisher developer cartridge for the image forming apparatus were possible to be provided, but also durability of a two-component developer used in the image forming apparatus was possible to be improved, by replenishing the image forming apparatus with a replenisher developer in the carrier concentration range of 5-30% by weight in terms of the mean value, and in the carrier concentration deviation range of 10% by weight or less, based on the replenisher developer.Type: ApplicationFiled: February 2, 2010Publication date: August 12, 2010Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Haruo TAKESHITA, Kiyotaka NAITO
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Publication number: 20090279921Abstract: A toner container for replenishing toner to an image forming apparatus, including: a container main body having a toner outlet and a toner conveyance device which conveys the toner toward the toner outlet through rotation; a cap which covers the toner outlet and has a toner ejecting section; a toner ejecting member which conveys the toner from the container main body to the cap; and a holding ring which is fixed with the toner ejecting member, wherein the container main body has a first engagement member which engages with an engagement section of the holding ring such that the container main body, rotates together with the holding ring and the toner ejecting member, and wherein the cap has a second engagement member which engages with the holding ring such that the holding ring and the toner ejecting member are rotatable.Type: ApplicationFiled: May 1, 2009Publication date: November 12, 2009Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Kiyotaka NAITO, Yoshihiko TOYOIZUMI, Tatsuo NAKANISHI
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Publication number: 20090279916Abstract: A toner container for replenishing toner to an image forming apparatus including: a container main body which comprises a toner storage section and a toner outlet; a cap that covers the toner outlet; and a seal member that is interposed between the container main body and the cap to prevent toner leakage, wherein the container main body has a step portion formed between the toner storage section and the toner outlet, and the seal member is fixed on the step portion to be interposed between the step portion and the cap.Type: ApplicationFiled: May 1, 2009Publication date: November 12, 2009Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Kiyotaka NAITO, Yoshihiko TOYOIZUMI, Tatsuo NAKANISHI
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Patent number: D636016Type: GrantFiled: November 24, 2009Date of Patent: April 12, 2011Assignee: Konica Minolta Business Technologies, Inc.Inventors: Kiyotaka Naito, Tatsuo Nakanishi
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Patent number: D636435Type: GrantFiled: November 24, 2009Date of Patent: April 19, 2011Assignee: Konica Minolta Business Technologies, Inc.Inventors: Kiyotaka Naito, Tatsuo Nakanishi