Patents by Inventor Yasunori Minakuchi
Yasunori Minakuchi 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: 20210039852Abstract: A packaging case comprises a case body including a bottom plate and a peripheral wall surrounding the bottom plate; and a holding member including a contact region and a coupling part, the contact region having a contact surface to be in contact with an article to be housed from above the article to be housed, in case that the article to be housed is provided on a surface of the bottom plate inside the case body, and the coupling part being directly or indirectly connectable to the bottom plate and/or the peripheral wall.Type: ApplicationFiled: March 14, 2018Publication date: February 11, 2021Inventors: TAKASHI UCHIDA, YASUNORI MINAKUCHI
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Patent number: 10371887Abstract: A display apparatus includes: a display panel displaying an image; a light guide plate facing the display panel. The display panel and the light guide plate are coupled by a coupling member disposed at a peripheral portion of the display apparatus, and an optical sheet being interposed in a void formed between the display panel and the light guide plate. The coupling member includes a leg plate having a strip shape and two side plates protruding inward from both edges in a width direction of the leg plate approximately in parallel to each other. The coupling member is attached in such a way that the leg plate is provided along both a peripheral edge of the display panel and a peripheral edge of the light guide plate, one of the two side plates extending inward is provided along a facing surface of the display panel facing the light guide plate, and the other of the two side plates is provided along at least one surface of the light guide plate.Type: GrantFiled: September 26, 2014Date of Patent: August 6, 2019Assignee: Sakai Display Products CorporationInventors: Arimasa Sugimoto, Yasunori Minakuchi
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Patent number: 10371886Abstract: Provided is a display apparatus capable of preventing the warp and the optical leak of an optical sheet. The display apparatus includes: a display panel which displays an image; a light guide plate which faces the display panel and emits light towards the display panel; a spacer which forms a gap between the light guide plate and the display panel; and an optical sheet arranged at the gap. A peripheral portion of the light guide plate is located outside with respect to the display panel, and the spacer includes a panel attaching part which is attached at an edge portion of one surface of the display panel and with a light-guide-plate attaching part which continues to the panel attaching part and is attached at an edge portion in one surface of the light guide plate.Type: GrantFiled: September 26, 2014Date of Patent: August 6, 2019Assignee: Sakai Display Products CorporationInventors: Arimasa Sugimoto, Yasunori Minakuchi
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Publication number: 20170205570Abstract: A display apparatus includes: a display panel displaying an image; a light guide plate facing the display panel. The display panel and the light guide plate are coupled by a coupling member disposed at a peripheral portion of the display apparatus, and an optical sheet being interposed in a void formed between the display panel and the light guide plate. The coupling member includes a leg plate having a strip shape and two side plates protruding inward from both edges in a width direction of the leg plate approximately in parallel to each other. The coupling member is attached in such a way that the leg plate is provided along both a peripheral edge of the display panel and a peripheral edge of the light guide plate, one of the two side plates extending inward is provided along a facing surface of the display panel facing the light guide plate, and the other of the two side plates is provided along at least one surface of the light guide plate.Type: ApplicationFiled: September 26, 2014Publication date: July 20, 2017Inventors: Arimasa SUGIMOTO, Yasunori MINAKUCHI
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Publication number: 20170205569Abstract: Provided is a display apparatus capable of preventing the warp and the optical leak of an optical sheet. The display apparatus includes: a display panel which displays an image; a light guide plate which faces the display panel and emits light towards the display panel; a spacer which forms a gap between the light guide plate and the display panel; and an optical sheet arranged at the gap. A peripheral portion of the light guide plate is located outside with respect to the display panel, and the spacer includes a panel attaching part which is attached at an edge portion of one surface of the display panel and with a light-guide-plate attaching part which continues to the panel attaching part and is attached at an edge portion in one surface of the light guide plate.Type: ApplicationFiled: September 26, 2014Publication date: July 20, 2017Inventors: Arimasa Sugimoto, Yasunori Minakuchi
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Patent number: 8634732Abstract: An image forming apparatus includes a fixing roller, a heating section, a pressurizing roller, an oil roller, a first cleaning roller, and a control section. The pressurizing roller is pressed against the fixing roller. The oil roller abuts against the fixing roller and is capable of being rotated by rotation of the fixing roller to apply oil onto a surface of the fixing roller. The first cleaning roller abuts against the oil roller and is capable of being rotated by rotation of the oil roller to clean a surface of the oil roller. When the control section determines that the fixing roller and the pressurizing roller have performed fixing on a predetermined number and more of consecutive sheet surfaces, the control section carries out a first control process which causes the heating section to stop and the fixing roller to rotate for a first predetermined time period after the fixing.Type: GrantFiled: November 9, 2011Date of Patent: January 21, 2014Assignee: Sharp Kabushiki KaishaInventors: Masaki Amemiya, Yasunori Minakuchi
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Patent number: 8320809Abstract: A cleaning apparatus using a web sheet includes: a send-out roller that is wound with the web sheet; a take-up roller that is connected to an end of the web sheet; and a rotation-regulating and canceling portion that regulates rotation of the send-out roller and cancels the regulation according to tension of the web sheet between the send-out roller and the take-up roller; wherein the web sheet is sent out from the send-out roller and taken up by the take-up roller, the web sheet is brought into contact with another roller during the sending out and taking up operation, and extraneous matters that have adhered to the other roller are removed.Type: GrantFiled: July 8, 2009Date of Patent: November 27, 2012Assignee: Sharp Kabushiki KaishaInventors: Takashi Yamanaka, Yasunori Minakuchi, Kimihide Tsukamoto, Shinichi Azumi
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Publication number: 20120114355Abstract: An image forming apparatus includes a fixing roller, a heating section, a pressurizing roller, an oil roller, a first cleaning roller, and a control section. The pressurizing roller is pressed against the fixing roller. The oil roller abuts against the fixing roller and is capable of being rotated by rotation of the fixing roller to apply oil onto a surface of the fixing roller. The first cleaning roller abuts against the oil roller and is capable of being rotated by rotation of the oil roller to clean a surface of the oil roller. When the control section determines that the fixing roller and the pressurizing roller have performed fixing on a predetermined number and more of consecutive sheet surfaces, the control section carries out a first control process which causes the heating section to stop and the fixing roller to rotate for a first predetermined time period after the fixing.Type: ApplicationFiled: November 9, 2011Publication date: May 10, 2012Inventors: Masaki Amemiya, Yasunori Minakuchi
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Patent number: 7945180Abstract: When an image forming apparatus, after a feeding error of a recording material occurs in a fixing device, re-forms on the recording material an image corresponding to image data which image was formed on a sheet which caused the feeding error, an image forming condition is caused to be different from an operation condition used when the feeding error has occurred. This makes it possible to prevent a JAM corresponding to the same image from recurring in the fixing device.Type: GrantFiled: April 29, 2008Date of Patent: May 17, 2011Assignee: Sharp Kabushiki KaishaInventors: Kenji Kitami, Yasunori Minakuchi, Kenji Asakura
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Patent number: 7720414Abstract: In one embodiment, the fixing apparatus of the present invention is a fixing apparatus in which while recording paper is transported sandwiched between a heating roller and a pressure roller that are pressed against each other, the recording paper is guided by a guide member, and heat and pressure are applied to the recording paper to fix toner on the recording paper, the fixing apparatus configured with the guide member rotatably provided such that the guide member can be removed from the transport path of the recording paper, and the center of rotational movement of the guide member matched with a shaft of the heating roller or a shaft of the pressure roller.Type: GrantFiled: February 15, 2007Date of Patent: May 18, 2010Assignee: Sharp Kabushiki KaishaInventors: Takashi Kubo, Yasunori Minakuchi, Hiroaki Hori
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Patent number: 7706707Abstract: In one embodiment, in a standby mode, an endless heating belt is caused to move apart from a hot roller. Furthermore, in color mode, the endless heating belt is caused to contact the hot roller to make possible thermal conduction between the endless heating belt and the hot roller, and a surface temperature of the endless heating belt is adjusted within a prescribed range of 200° C. to 210° C. being higher than a fixing temperature of 180° C. Further still, in monochrome mode, a length (or a surface area) of a heating contact region between the endless heating belt and the hot roller is set to a maximum to increase a thermal conduction efficiency between the endless heating belt and the hot roller, and a surface temperature of the endless heating belt is adjusted within a prescribed range of 210° C. to 220° C. being sufficiently higher than the fixing temperature of 180° C.Type: GrantFiled: June 27, 2007Date of Patent: April 27, 2010Assignee: Sharp Kabushiki KaishaInventors: Yasunori Minakuchi, Yoshinobu Tateishi, Toshiya Mikita, Michihiro Yamashita
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Patent number: 7668494Abstract: In an embodiment of the present invention, a pressure application mechanism portion is provided with a pressure-varying link structure arranged so as to be movable in lateral directions along an upper end portion of a device frame, a drive shaft having an eccentric cam for moving the pressure-varying link structure in the lateral directions, a shaft holding structure arranged so as to be rotatable coupled to the pressure-varying link structure, and a coil spring for applying a biasing force to the shaft holding structure in one direction along the upper end portion of the device frame, and a rotational movement is carried out to make a pressure roller approach and move away from a heat roller so as to achieve a relatively low pressure during a color processing mode and a relatively high pressure during a monochrome processing mode.Type: GrantFiled: October 30, 2006Date of Patent: February 23, 2010Assignee: Sharp Kabushiki KaishaInventors: Takashi Kubo, Hiroaki Hori, Yasunori Minakuchi, Yoshinobu Tateishi, Yasunobu Ohkawa, Yoshinobu Okumura
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Publication number: 20100008704Abstract: A cleaning apparatus using a web sheet includes: a send-out roller that is wound with the web sheet; a take-up roller that is connected to an end of the web sheet; and a rotation-regulating and canceling portion that regulates rotation of the send-out roller and cancels the regulation according to tension of the web sheet between the send-out roller and the take-up roller; wherein the web sheet is sent out from the send-out roller and taken up by the take-up roller, the web sheet is brought into contact with another roller during the sending out and taking up operation, and extraneous matters that have adhered to the other roller are removed.Type: ApplicationFiled: July 8, 2009Publication date: January 14, 2010Inventors: Takashi Yamanaka, Yasunori Minakuchi, Kimihide Tsukamoto, Shinichi Azumi
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Patent number: 7630675Abstract: A fuser unit with a cleaning mechanism, including: a set of a heat roller and a pressure roller for sandwiching a recording sheet while heating the recording sheet by the heat roller; a feed roller for feeding a band-shaped cleaning member which is windable; a press roller for pressing the fed cleaning member against a surface of the heat roller or the pressure roller; a wind roller for winding the cleaning member which is pressed by the press roller; and a first reverse rotation preventing mechanism for preventing rotation of the press roller from rotating in the opposite direction to the winding direction of the cleaning member.Type: GrantFiled: June 1, 2007Date of Patent: December 8, 2009Assignee: Sharp Kabushiki KaishaInventors: Yoshinobu Tateishi, Yasunori Minakuchi, Toshiya Mikita, Toyoaki Nanba, Yoshiyuki Nagai, Hiroshi Nakatani
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Patent number: 7555254Abstract: A cleaning device includes a cleaning web, a supply roller, a take-up roller, and a control section. Positioned in contact with a circumferential surface of a fuser roller, the web removes toner particles on the circumferential surface. The supply roller has the web wound thereon. The take-up roller takes up the web withdrawn from the supply roller. The control section controls rotation of the take-up roller. The control section performs a first process of causing the take-up roller to take up a first length of the web each time a predetermined taking-up condition is satisfied. The control section also performs a second process, instead of the first process, of causing the take-up roller to take up a second length of the web each time after a first predetermined number of the first processes are performed.Type: GrantFiled: March 1, 2007Date of Patent: June 30, 2009Assignee: Sharp Kabushiki KaishaInventors: Yoshinobu Tateishi, Toyoaki Nanba, Yasunori Minakuchi
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Patent number: 7551883Abstract: In one embodiment, the invention provides a paper separation claw disposed near the surface of at least one of fixing rollers that fix toner on recording paper transported in a sandwiched manner, the paper separation claw being disposed in order to separate the recording paper, and a cavity portion that is open facing the surface of the fixing roller is formed in the paper separation claw.Type: GrantFiled: August 16, 2007Date of Patent: June 23, 2009Assignee: Sharp Kabushiki KaishaInventors: Atsushi Ide, Yasunori Minakuchi, Noriko Inoue
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Publication number: 20080273887Abstract: When an image forming apparatus, after a feeding error of a recording material occurs in a fixing device, re-forms on the recording material an image corresponding to image data which image was formed on a sheet which caused the feeding error, an image forming condition is caused to be different from an operation condition used when the feeding error has occurred. This makes it possible to prevent a JAM corresponding to the same image from recurring in the fixing device.Type: ApplicationFiled: April 29, 2008Publication date: November 6, 2008Inventors: Kenji KITAMI, Yasunori MINAKUCHI, Kenji ASAKURA
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Patent number: 7409183Abstract: In the present applying mechanism, a part of a guide sheet 33 bulges (arches) away from an oil application roller 16, with respect to a vertical line S passing through the center of a pipe 31. In other words, in the present applying mechanism, a part of the guide sheet 33 has a shape of avoiding (bypassing) the oil application roller 16 that has a high temperature. With this, oil flowing on the guide sheet 33 is kept away from the high-temperature oil application roller 16. The present applying mechanism can include an edge 50, or gap, in the guide sheet 33 for backing-up flow of oil to before the application roller in order to ensure even distribution of the oil to the application roller. The present applying mechanism can include a narrow gap between the pipe 31 and guide sheet 33.Type: GrantFiled: December 7, 2004Date of Patent: August 5, 2008Assignee: Sharp Kabushiki KaishaInventors: Yoshinobu Tateishi, Toshiya Mikita, Yasunori Minakuchi, Masaru Tsuji, Atsushi Ide, Osamu Fujimoto, Kazuhiro Matsuyama, Toshio Yamanaka
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Patent number: 7352986Abstract: A fixing device includes a feeding roller for feeding a belt-shaped cleaning member which has been rolled up, and a winding roller for taking up the cleaning member which has been fed from the feeding roller and cleaned a surface of the fixing roller, the winding roller being provided so as to pressure-contact the feeding roller. The winding roller is rotated by a time control due to a control portion so that a sum of a feed amount of the cleaning member which is fed by the feeding roller at one feeding occasion, and a take-up amount of the cleaning member which is taken up by the winding roller at one take-up occasion, is equal to or more than a double of a length Ln of a nip section.Type: GrantFiled: January 18, 2006Date of Patent: April 1, 2008Assignee: Sharp Kabushiki KaishaInventors: Toshiya Mikita, Yasunori Minakuchi, Yoshinobu Tateishi, Hiroaki Hori, Atsushi Ide
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Publication number: 20080050154Abstract: In one embodiment, the invention provides a paper separation claw disposed near the surface of at least one of fixing rollers that fix toner on recording paper transported in a sandwiched manner, the paper separation claw being disposed in order to separate the recording paper, and a cavity portion that is open facing the surface of the fixing roller is formed in the paper separation claw.Type: ApplicationFiled: August 16, 2007Publication date: February 28, 2008Inventors: Atsushi Ide, Yasunori Minakuchi, Noriko Inoue