Patents by Inventor Tetsuya Uehashi
Tetsuya Uehashi 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).
-
Patent number: 11397403Abstract: An image formation apparatus according to an embodiment may include: an apparatus housing including a stacker and an opening provided at the stacker; a fixation device removably attached to the apparatus housing through the opening and including a handle rotatable between an upright position and a laid-flat position; and a laid-flat position-keeping detent mechanism. In a state where the fixation device is attached to the apparatus housing, a portion of the fixation device that is exposed from the opening provided at the stacker forms a portion of the stacker and a connector of the fixation device is mated to a connector of the apparatus housing. By at least a predetermined force being applied to the handle to transition the handle from the upright position to the laid-flat position, the laid-flat position-keeping detent mechanism allows the handle to transition to the laid-flat position and keeps the handle in the laid-flat position.Type: GrantFiled: August 16, 2021Date of Patent: July 26, 2022Assignee: Oki Electric Industry Co., Ltd.Inventors: Tetsuya Uehashi, Teruo Soeda
-
Publication number: 20220128945Abstract: An image formation apparatus according to an embodiment may include: an apparatus housing including a stacker and an opening provided at the stacker; a fixation device removably attached to the apparatus housing through the opening and including a handle rotatable between an upright position and a laid-flat position; and a laid-flat position-keeping detent mechanism. In a state where the fixation device is attached to the apparatus housing, a portion of the fixation device that is exposed from the opening provided at the stacker forms a portion of the stacker and a connector of the fixation device is mated to a connector of the apparatus housing. By at least a predetermined force being applied to the handle to transition the handle from the upright position to the laid-flat position, the laid-flat position-keeping detent mechanism allows the handle to transition to the laid-flat position and keeps the handle in the laid-flat position.Type: ApplicationFiled: August 16, 2021Publication date: April 28, 2022Applicant: Oki Electric Industry Co., Ltd.Inventors: Tetsuya UEHASHI, Teruo SOEDA
-
Patent number: 10599093Abstract: An image formation apparatus according to an embodiment may include: an apparatus housing including a stacker formed on a periphery of the apparatus housing, wherein the stacker includes an opening; an image formation part provided in the apparatus housing and configured to form an image on a medium; and a fixation unit detachably attached in the apparatus housing and configured to fix the image formed by the image formation part on the medium, wherein in a state where the fixation unit is attached in the apparatus housing, a part of the fixation unit is exposed through the opening of the stacker to constitute a part of the stacker such that the opening of the stacker allows the fixation unit to be taken out from the apparatus housing therethrough.Type: GrantFiled: June 19, 2019Date of Patent: March 24, 2020Assignee: Oki Data CorporationInventors: Tetsuya Uehashi, Yuu Oikawa
-
Publication number: 20200073321Abstract: An image formation apparatus according to an embodiment may include: an apparatus housing including a stacker formed on a periphery of the apparatus housing, wherein the stacker includes an opening; an image formation part provided in the apparatus housing and configured to form an image on a medium; and a fixation unit detachably attached in the apparatus housing and configured to fix the image formed by the image formation part on the medium, wherein in a state where the fixation unit is attached in the apparatus housing, a part of the fixation unit is exposed through the opening of the stacker to constitute a part of the stacker such that the opening of the stacker allows the fixation unit to be taken out from the apparatus housing therethrough.Type: ApplicationFiled: June 19, 2019Publication date: March 5, 2020Applicant: Oki Data CorporationInventors: Tetsuya UEHASHI, Yuu OIKAWA
-
Patent number: 10466632Abstract: A fixing device includes a belt member. The belt member includes a first insulating layer, an electrically-conductive layer, and a second insulating layer in order. The following conditional expression (1) is satisfied, 9.11??log RV1?13.34???(1) where RV1 represents a volume resistance of the electrically-conductive layer on a condition that an applied voltage is 100 volts.Type: GrantFiled: July 18, 2018Date of Patent: November 5, 2019Assignee: Oki Data CorporationInventors: Tetsuya Uehashi, Takaaki Furukawa
-
Publication number: 20190033758Abstract: A fixing device includes a belt member. The belt member includes a first insulating layer, an electrically-conductive layer, and a second insulating layer in order. The following conditional expression (1) is satisfied, 9.11??log RV1?13.34???(1) where RV1 represents a volume resistance of the electrically-conductive layer on a condition that an applied voltage is 100 volts.Type: ApplicationFiled: July 18, 2018Publication date: January 31, 2019Inventors: Tetsuya UEHASHI, Takaaki FURUKAWA
-
Patent number: 9696669Abstract: A fuser device is provided with a first endless belt, a heat application member that is enclosed by the first endless belt and heats the first endless belt, a fuser member enclosed by the first endless belt, a second endless belt of which rigidity is higher than that of the first endless belt, a pressure application member that is enclosed by the second endless belt and applies a pressure to developers on a carried recording medium in the contact part with the fuser member, and a support part forming part that forms a support part of the first endless belt and the second endless belt.Type: GrantFiled: March 18, 2016Date of Patent: July 4, 2017Assignee: Oki Data CorporationInventors: Tetsuya Uehashi, Masato Sakai
-
Publication number: 20160320730Abstract: A fuser device is provided with a first endless belt, a heat application member that is enclosed by the first endless belt and heats the first endless belt, a fuser member enclosed by the first endless belt, a second endless belt of which rigidity is higher than that of the first endless belt, a pressure application member that is enclosed by the second endless belt and applies a pressure to developers on a carried recording medium in the contact part with the fuser member, and a support part forming part that forms a support part of the first endless belt and the second endless belt.Type: ApplicationFiled: March 18, 2016Publication date: November 3, 2016Inventors: Tetsuya UEHASHI, Masato Sakai
-
Patent number: 8244152Abstract: A developing device includes: an image carrier, a developer carrier configured to carry developer and develop a latent image formed on the image carrier to form a developer image on the image carrier, a developer supplying member being in contact with the developer carrier and configured to supply the developer to the developer carrier, and developer sealing members provided at the ends of the developer carrier and the developer supplying member and configured to seal the developer there-between. One of the developer carrier and the developer supplying member is a belt member stretched between a drive roller and a driven roller. The developer sealing members are in contact with the outer circumferential surface of the belt member.Type: GrantFiled: November 25, 2009Date of Patent: August 14, 2012Assignee: Oki Data CorporationInventor: Tetsuya Uehashi
-
Patent number: 8208841Abstract: A developing device develops an electrostatic latent image on an image bearing body, and includes first, second and third rollers, a developing belt and a developer supply member. The developing belt, which is entrained about the first, second and third rollers, is opposed to the image bearing body between the first and second rollers, and is in contact with the developer supply member between the first and third rollers. The developer supply member supplies a developer to the developing belt.Type: GrantFiled: May 27, 2010Date of Patent: June 26, 2012Assignee: Oki Data CorporationInventor: Tetsuya Uehashi
-
Patent number: 8068773Abstract: A development device includes a developer carrier and a developer supply belt. The developer carrier, disposed in contact with an image carrier carrying an electrostatic latent image, carries developer to be charged with a prescribed polarity and develops the electrostatic latent image by application of development voltage. The developer supply belt includes a first roller, a second roller, and a belt. The belt is tightly stretched by the first roller and the second roller, and is disposed in contact with the developer carrier from a contact beginning portion to a contact finishing portion. A potential difference between the development voltage and the voltage of the contact finishing portion is arranged to be zero (0) V or above and 600 V or below.Type: GrantFiled: November 26, 2008Date of Patent: November 29, 2011Assignee: Oki Data CorporationInventor: Tetsuya Uehashi
-
Publication number: 20100329749Abstract: A developing device develops an electrostatic latent image on an image bearing body, and includes first, second and third rollers, a developing belt and a developer supply member. The developing belt, which is entrained about the first, second and third rollers, is opposed to the image bearing body between the first and second rollers, and is in contact with the developer supply member between the first and third rollers. The developer supply member supplies a developer to the developing belt.Type: ApplicationFiled: May 27, 2010Publication date: December 30, 2010Applicant: OKI DATA CORPORATIONInventor: Tetsuya Uehashi
-
Publication number: 20100129109Abstract: A developing device includes: an image carrier, a developer carrier configured to carry developer and develop a latent image formed on the image carrier to form a developer image on the image carrier, a developer supplying member being in contact with the developer carrier and configured to supply the developer to the developer carrier, and developer sealing members provided at the ends of the developer carrier and the developer supplying member and configured to seal the developer there-between. One of the developer carrier and the developer supplying member is a belt member stretched between a drive roller and a driven roller. The developer sealing members are in contact with the outer circumferential surface of the belt member.Type: ApplicationFiled: November 25, 2009Publication date: May 27, 2010Applicant: Oki Data CorporationInventor: Tetsuya UEHASHI
-
Publication number: 20090142109Abstract: A development device includes a developer carrier and a developer supply belt. The developer carrier, disposed in contact with an image carrier carrying an electrostatic latent image, carries developer to be charged with a prescribed polarity and develops the electrostatic latent image by application of development voltage. The developer supply belt includes a first roller, a second roller, and a belt. The belt is tightly stretched by the first roller and the second roller, and is disposed in contact with the developer carrier from a contact beginning portion to a contact finishing portion. A potential difference between the development voltage and the voltage of the contact finishing portion is arranged to be zero (0) V or above and 600 V or below.Type: ApplicationFiled: November 26, 2008Publication date: June 4, 2009Applicant: Oki Data CorporationInventor: Tetsuya Uehashi