Patents by Inventor Takehiro Miyashita
Takehiro Miyashita 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: 20230418224Abstract: An image forming apparatus forming an image on a sheet conveyed in a sheet conveyance direction includes a frame including a first side plate and a second side plate disposed in parallel in a width direction orthogonal to the sheet conveyance direction, an intake unit disposed on an outer side of the frame in the width direction and configured to draw air into an interior of the frame, an exhaust unit disposed between the first side plate and the second side plate and configured to discharge air outside of the frame, and a cooling object unit disposed on a path of the air which is drawn into the interior of the frame by the intake unit and moves toward the exhaust unit.Type: ApplicationFiled: June 15, 2023Publication date: December 28, 2023Inventors: TAKEHIRO MIYASHITA, TAKEO KAWANAMI, RYOSUKE TAKAHASHI
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Publication number: 20230408950Abstract: An image forming apparatus includes an attaching portion including an operation member configured to be movable together with a container shutter, a toner storage portion configured to store toner received from a receiving port, an actuator configured to regulate a movement of the operation member, and a control unit configured to control the actuator. The operation member is configured to open and close the container shutter from an outside in a state in which the toner container is attached to the attaching portion. In a case where a predetermined condition is met, the control unit controls the actuator to release a regulation of the movement of the operation member.Type: ApplicationFiled: August 29, 2023Publication date: December 21, 2023Inventors: KAZUAKI NOGAMI, TAKEO KAWANAMI, AKINORI MITSUMATA, TAKEHIRO MIYASHITA
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Patent number: 11815845Abstract: An image forming apparatus configured to form an image on a sheet includes a main body, an opening and closing part, a link part, and an urging member. The link part is connected to the main body and the opening and closing part. When the opening and closing part moves between open and closed positions, the link part moves perpendicular to a direction along a rotating shaft of the link part to contact and be received by the main body. The opening and closing part can move in a state in which the link part and the main body contact each other. When the opening and closing part is in the closed position, the link part and the main body are separated from each other, and the opening and closing part is urged toward the main body by the link part urged by the urging member.Type: GrantFiled: October 7, 2022Date of Patent: November 14, 2023Assignee: Canon Kabushiki KaishaInventors: Takehiro Miyashita, Takeo Kawanami
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Publication number: 20230176521Abstract: An image forming apparatus includes a photosensitive drum, a development device, a fixing device, an apparatus main body, and a fan including a rotating shaft that extends in a longitudinal direction of the photosensitive drum and a blade around the rotating shaft. The development device develops a toner image on the photosensitive drum. The fixing device fixes the toner image from the photosensitive drum to a recording material. The apparatus main body is provided with a discharge port from which the toner-fixed recording material is discharged. A length of the fan rotating shaft in the longitudinal direction is longer than a diameter of a rotational trajectory of the blade. The fan is provided on a downstream side of the fixing device in a discharge direction in which the recording material is discharged from the discharge port and overlaps a part of the development device when viewed in a vertical direction.Type: ApplicationFiled: January 19, 2023Publication date: June 8, 2023Inventors: Takeo Kawanami, Akinori Mitsumata, Takehiro Miyashita, Katsuhiko Oba
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Publication number: 20230176517Abstract: An image forming apparatus includes an apparatus body, an image forming unit, an opening and closing cover, a fixed cover that constitutes a part of an exterior of the apparatus body with the opening and closing cover, and is configured to form a boundary portion with an upper edge of the opening and closing cover in a vertical direction, a positioning portion including a first engagement portion provided in the opening and closing cover, and a second engagement portion provided in the fixed cover, a first conveyance guide provided on the opening and closing cover, and a second conveyance guide provided on the fixed cover. The first engagement portion and the second engagement portion are configured to engage with each other to perform positioning of the opening and closing cover and the fixed cover in the vertical direction and positioning of the first conveyance guide and the second conveyance guide.Type: ApplicationFiled: December 2, 2022Publication date: June 8, 2023Inventors: DAIGO YAMAUCHI, ATSUYUKI YUZAWA, TAKEO KAWANAMI, TAKEHIRO MIYASHITA
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Publication number: 20230115329Abstract: An image forming apparatus configured to form an image on a sheet includes a main body, an opening and closing part, a link part, and an urging member. The link part is connected to the main body and the opening and closing part. When the opening and closing part moves between open and closed positions, the link part moves perpendicular to a direction along a rotating shaft of the link part to contact and be received by the main body. The opening and closing part can move in a state in which the link part and the main body contact each other. When the opening and closing part is in the closed position, the link part and the main body are separated from each other, and the opening and closing part is urged toward the main body by the link part urged by the urging member.Type: ApplicationFiled: October 7, 2022Publication date: April 13, 2023Inventors: Takehiro Miyashita, Takeo Kawanami
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Patent number: 11586143Abstract: An image forming apparatus includes a photosensitive drum, a development device, a fixing device, an apparatus main body, and a fan including a rotating shaft that extends in a longitudinal direction of the photosensitive drum and a blade around the rotating shaft. The development device develops a toner image on the photosensitive drum. The fixing device fixes the toner image from the photosensitive drum to a recording material. The apparatus main body is provided with a discharge port from which the toner-fixed recording material is discharged. A length of the fan rotating shaft in the longitudinal direction is longer than a diameter of a rotational trajectory of the blade. The fan is provided on a downstream side of the fixing device in a discharge direction in which the recording material is discharged from the discharge port and overlaps a part of the development device when viewed in a vertical direction.Type: GrantFiled: December 16, 2021Date of Patent: February 21, 2023Assignee: Canon Kabushiki KaishaInventors: Takeo Kawanami, Akinori Mitsumata, Takehiro Miyashita, Katsuhiko Oba
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Publication number: 20220197213Abstract: An image forming apparatus includes a photosensitive drum, a development device, a fixing device, an apparatus main body, and a fan including a rotating shaft that extends in a longitudinal direction of the photosensitive drum and a blade around the rotating shaft. The development device develops a toner image on the photosensitive drum. The fixing device fixes the toner image from the photosensitive drum to a recording material. The apparatus main body is provided with a discharge port from which the toner-fixed recording material is discharged. A length of the fan rotating shaft in the longitudinal direction is longer than a diameter of a rotational trajectory of the blade. The fan is provided on a downstream side of the fixing device in a discharge direction in which the recording material is discharged from the discharge port and overlaps a part of the development device when viewed in a vertical direction.Type: ApplicationFiled: December 16, 2021Publication date: June 23, 2022Inventors: Takeo Kawanami, Akinori Mitsumata, Takehiro Miyashita, Katsuhiko Oba
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Patent number: 8247026Abstract: Disclosed is a method for producing an optical film composed of a transparent resin and a metal oxide, which film has high light transmittance and light diffusion property even it is formed thin. Also disclosed is such an optical film. Specifically disclosed is a method for producing an optical film having a total light transmittance of not less than 70% and a haze value of not less than 20%, which comprises a step (A) wherein a metal compound to form a metal oxide through a sol-gel reaction is subjected to a sol-gel reaction in a solvent; a step (B) for providing a solution containing a transparent resin as a solute; a step (C) for mixing the mixture obtained in the step (A) with the solution obtained in the step (B); and a step (D) wherein the mixture obtained in the step (C) is applied or spread over a substrate or container and then heated for evaporating the solvent, thereby forming a film thereon.Type: GrantFiled: March 19, 2007Date of Patent: August 21, 2012Assignee: Mitsui Chemicals, Inc.Inventors: Fumiaki Nishino, Katsunori Nishiura, Kazuyuki Fukuda, Toshihiko Takaki, Takehiro Miyashita
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Publication number: 20090123698Abstract: Disclosed is a method for producing an optical film composed of a transparent resin and a metal oxide, which film has high light transmittance and light diffusion property even it is formed thin. Also disclosed is such an optical film. Specifically disclosed is a method for producing an optical film having a total light transmittance of not less than 70% and a haze value of not less than 20%, which comprises a step (A) wherein a metal compound to form a metal oxide through a sol-gel reaction is subjected to a sol-gel reaction in a solvent; a step (B) for providing a solution containing a transparent resin as a solute; a step (C) for mixing the mixture obtained in the step (A) with the solution obtained in the step (B); and a step (D) wherein the mixture obtained in the step (C) is applied or spread over a substrate or container and then heated for evaporating the solvent, thereby forming a film thereon.Type: ApplicationFiled: March 19, 2007Publication date: May 14, 2009Applicant: MITSUI CHEMICALS , INC.Inventors: Fumiaki Nishino, Katsunori Nishiura, Kazuyuki Fukuda, Toshihiko Takaki, Takehiro Miyashita
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Publication number: 20030134149Abstract: There is provided a transparent conductive film comprising: a substrate(A), and a transparent conductive layer(B) formed on one main surface of the substrate(A), wherein the layer(B) mainly comprises indium, tin and oxygen atoms, and a resistance variation rate of the layer(B) is 5% or less after 60% to 70% of the surface area of the layer(B) is covered with a 28 wt % aqueous ammonia solution for five hours.Type: ApplicationFiled: November 21, 2002Publication date: July 17, 2003Applicant: Mitsui Chemicals, Inc.Inventors: Takehiro Miyashita, Yukinori Asakawa, Akemi Nakajima, Masato Koyama, Masanori Makino, Akira Suzuki, Satoru Okada
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Patent number: 5820994Abstract: A laminate using a polymeric molded article as a substrate and having a light transparency, gas barrier properties and an excellent alkali resistance. The laminate is obtainable by carrying out a surface treatment to deposit an oxide of at least one metal selected from the metal elements of groups 2, 8, 9, 10 and 11 of the periodic table, and then forming a gas barrier layer such as oxides of silicon, nitrides of silicon and carbides of silicon on the treated surface. The gas barrier layer is not peeled off from the polymeric molded article even after being immersed in an alkali solution of pH 12 or more. The amount of the metal on the treated surface is preferably in the range of 5.times.10.sup.14 atoms/cm.sup.2 to 3.times.10.sup.16 atoms/cm.sup.2 in terms of the metal atoms per unit area. The practical performance of the laminate is not deteriorated during the patterning, by alkali etching, of a transparent conductive layer formed on the laminate.Type: GrantFiled: February 6, 1997Date of Patent: October 13, 1998Assignee: Mitsui Chemicals, Inc.Inventors: Yumi Gotoh, Takehiro Miyashita, Tomoyuki Okamura, Fumiharu Yamazaki, Shin Fukuda, Nobuhiro Fukuda, Yoko Tajiri, Noboru Kawasaki