Patents by Inventor Shuji Kato
Shuji Kato 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).
-
Publication number: 20240083996Abstract: For example, therapeutic methods and the like for novel IL-8-related diseases using an IL-8 signal inhibitor are provided. Alternatively, for example, therapeutic methods and the like for known or novel IL-8-related diseases using a novel anti-IL-8 antibody are provided.Type: ApplicationFiled: August 16, 2023Publication date: March 14, 2024Inventors: Ayako KAKIUCHI, Atsuhiko Kato, Shuji Hayashi, Izumi Yanagisawa, Ryo Konno, Sachiho Netsu, Tadashi Sankai
-
Patent number: 11561394Abstract: An information display apparatus and an information display method configured to display video information of a virtual image on a windshield of conveyance is provided. The information display apparatus includes: a display configured to display the video information; and a virtual image optical system configured to display a virtual image at a front of the conveyance by reflecting light emitted from the display by means of the windshield. The virtual image optical system includes a concave mirror and an optical element. A reflective film is formed on a reflecting surface of the concave mirror. A protective film for preventing moisture absorption is formed on a facing surface. By forming end surfaces of the two surfaces as a curved surface or an inclined surface and forming them on the end surfaces to block moisture, moisture absorption of plastic is prevented.Type: GrantFiled: July 18, 2019Date of Patent: January 24, 2023Assignee: MAXELL, LTD.Inventors: Koji Hirata, Masahiko Yatsu, Shuji Kato, Toshinori Sugiyama, Michiaki Abe, Eiji Kawawa, Hiroyuki Kajikawa
-
Publication number: 20210349312Abstract: An information display apparatus and an information display method configured to display video information of a virtual image on a windshield of conveyance is provided. The information display apparatus includes: a display configured to display the video information; and a virtual image optical system configured to display a virtual image at a front of the conveyance by reflecting light emitted from the display by means of the windshield. The virtual image optical system includes a concave mirror and an optical element. A reflective film is formed on a reflecting surface of the concave mirror. A protective film for preventing moisture absorption is formed on a facing surface. By forming end surfaces of the two surfaces as a curved surface or an inclined surface and forming them on the end surfaces to block moisture, moisture absorption of plastic is prevented.Type: ApplicationFiled: July 18, 2019Publication date: November 11, 2021Inventors: Koji HIRATA, Masahiko YATSU, Shuji KATO, Toshinori SUGIYAMA, Michiaki ABE, Eiji KAWAWA, Hiroyuki KAJIKAWA
-
Patent number: 10746904Abstract: A free-form surface lens is made of a transparent resin forming an oblique projection optical system including a free-form surface mirror in a projection type video display apparatus, this lens includes a lens effective region having a surface on which a predetermined free-form surface is formed, and an edge surface formed to surround the lens effective region, the lens effective region and the edge surface in a part of a circumference surrounding the lens effective region where the edge surface is not formed are joined to each other by at least either one of a curved surface and a flat surface set so as not to change a direction of a tilt of the lens effective region in vicinity of the lens effective region, and an end surface including at least either one of the curved surface and the flat surface is set as a tapered surface.Type: GrantFiled: December 12, 2018Date of Patent: August 18, 2020Assignee: MAXELL, LTD.Inventors: Koji Hirata, Masahiko Yatsu, Yuki Matsumiya, Shuji Kato, Kayono Kimura
-
Patent number: 10678017Abstract: A projection type image display device includes an oblique projection optical system that magnifies and projects modulated image light, and includes lens elements and a reflection mirror having a convex surface. A center of an outer shape of one or more of the lens elements at a nearest position to the reflection mirror is positioned above an optical axis. The reflection mirror has a reflection surface shape orthogonal to a projection plane inclusive of the optical axis of the reflection mirror. The reflection surface shape and lens element are formed as specified. For example, the reflection surface shape is formed so that an average radius of curvature in an area through which a light flux focused at a center of the projection plane passes is smaller than that of curvature in an area through which a light flux focused at an upper end portion of the projection plane passes.Type: GrantFiled: March 10, 2015Date of Patent: June 9, 2020Assignee: MAXELL, LTD.Inventors: Koji Hirata, Masahiko Yatsu, Shuji Kato, Yuki Matsumiya, Kayono Kimura
-
Patent number: 10545334Abstract: The purpose of the present invention is to provide an optical device capable of rotationally adjusting a lens system with a flare-cut member incorporated therein. For this purpose, the flare-cut member according to the present invention is characterized by including a light shield surface for shielding the light flux incident on the periphery of a lens, and an opening formed in the light shield surface and causing the light flux incident on a lens element to pass therethrough, wherein the opening is formed in a rotationally symmetrical shape.Type: GrantFiled: January 28, 2015Date of Patent: January 28, 2020Assignee: Maxell, Ltd.Inventors: Masahiko Yatsu, Shuji Kato
-
Patent number: 10444606Abstract: Provided is a projection lens assembly method in an oblique projection optical system, which enables efficient manufacture even if a size of an image display element to be mounted varies, and a projection type image display apparatus using the projection lens. The projection lens assembly method in the oblique projection optical system for an oblique type projection image display apparatus including a block of a spherical lens and a block of an aspherical lens includes: preparing in advance the block of the spherical lens having a size that adapts to image display elements having different sizes and incorporated in the projection image display apparatus, and the block of a common aspherical lens; and assembling the block of the spherical lens selected in accordance with the sizes of the incorporated image display elements and the block of the common aspherical lens to assemble the projection lens.Type: GrantFiled: July 17, 2015Date of Patent: October 15, 2019Assignee: MAXELL, LTDInventors: Koji Hirata, Masahiko Yatsu, Yuki Matsumiya, Shuji Kato
-
Publication number: 20190129075Abstract: A free-form surface lens is made of a transparent resin forming an oblique projection optical system including a free-form surface mirror in a projection type video display apparatus, this lens includes a lens effective region having a surface on which a predetermined free-form surface is formed, and an edge surface formed to surround the lens effective region, the lens effective region and the edge surface in a part of a circumference surrounding the lens effective region where the edge surface is not formed are joined to each other by at least either one of a curved surface and a flat surface set so as not to change a direction of a tilt of the lens effective region in vicinity of the lens effective region, and an end surface including at least either one of the curved surface and the flat surface is set as a tapered surface.Type: ApplicationFiled: December 12, 2018Publication date: May 2, 2019Applicant: MAXELL, LTD.Inventors: Koji HIRATA, Masahiko YATSU, Yuki MATSUMIYA, Shuji KATO, Kayono KIMURA
-
Patent number: 10265831Abstract: Methods for manufacturing a rotational non-axisymmetric lens which is manufactured by grinding using a machining tool, manufacturing a molding die for the lens, manufacturing a rotational non-axisymmetric mirror, and manufacturing a molding die for the mirror are provided. The provided methods are methods for manufacturing a rotational non-axisymmetric lens partially including a non-axisymmetric surface, manufacturing a molding die for the lens, manufacturing a rotational non-axisymmetric mirror partially including a non-axisymmetric surface, and manufacturing a molding die for the mirror. When a rotational non-axisymmetric surface is formed while scanning a surface of a workpiece by grinding or cutting means, the rotational non-axisymmetric surface is ground or cut by the grinding or cutting means while scanning the surface with movement in a direction along a meridional surface of the rotational non-axisymmetric surface.Type: GrantFiled: January 27, 2015Date of Patent: April 23, 2019Assignee: Maxell, Ltd.Inventors: Koji Hirata, Masahiko Yatsu, Shuji Kato, Yuki Matsumiya
-
Patent number: 10185060Abstract: A free-form surface lens is made of a transparent resin forming an oblique projection optical system including a free-form surface mirror in a projection type video display apparatus, this lens includes a lens effective region having a surface on which a predetermined free-form surface is formed, and an edge surface formed to surround the lens effective region, the lens effective region and the edge surface in a part of a circumference surrounding the lens effective region where the edge surface is not formed are joined to each other by at least either one of a curved surface and a flat surface set so as not to change a direction of a tilt of the lens effective region in vicinity of the lens effective region, and an end surface including at least either one of the curved surface and the flat surface is set as a tapered surface.Type: GrantFiled: May 29, 2014Date of Patent: January 22, 2019Assignee: MAXELL, LTD.Inventors: Koji Hirata, Masahiko Yatsu, Yuki Matsumiya, Shuji Kato, Kayono Kimura
-
Publication number: 20180224730Abstract: Provided is a projection lens assembly method in an oblique projection optical system, which enables efficient manufacture even if a size of an image display element to be mounted varies, and a projection type image display apparatus using the projection lens. The projection lens assembly method in the oblique projection optical system for an oblique type projection image display apparatus including a block of a spherical lens and a block of an aspherical lens includes: preparing in advance the block of the spherical lens having a size that adapts to image display elements having different sizes and incorporated in the projection image display apparatus, and the block of a common aspherical lens; and assembling the block of the spherical lens selected in accordance with the sizes of the incorporated image display elements and the block of the common aspherical lens to assemble the projection lens.Type: ApplicationFiled: July 17, 2015Publication date: August 9, 2018Applicant: MAXELL, LTD.Inventors: Koji HIRATA, Masahiko YATSU, Yuki MATSUMIYA, Shuji KATO
-
Publication number: 20180052296Abstract: A projection type image display device includes an oblique projection optical system that magnifies and projects modulated image light, and includes lens elements and a reflection mirror having a convex surface. A center of an outer shape of one or more of the lens elements at a nearest position to the reflection mirror is positioned above an optical axis. The reflection mirror has a reflection surface shape orthogonal to a projection plane inclusive of the optical axis of the reflection mirror. The reflection surface shape and lens element are formed as specified. For example, the reflection surface shape is formed so that an average radius of curvature in an area through which a light flux focused at a center of the projection plane passes is smaller than that of curvature in an area through which a light flux focused at an upper end portion of the projection plane passes.Type: ApplicationFiled: March 10, 2015Publication date: February 22, 2018Inventors: Koji HIRATA, Masahiko YATSU, Shuji KATO, Yuki MATSUMIYA, Kayono KIMURA
-
Publication number: 20170326705Abstract: Methods for manufacturing a rotational non-axisymmetric lens which is manufactured by grinding using a machining tool, manufacturing a molding die for the lens, manufacturing a rotational non-axisymmetric mirror, and manufacturing a molding die for the mirror are provided. The provided methods are methods for manufacturing a rotational non-axisymmetric lens partially including a non-axisymmetric surface, manufacturing a molding die for the lens, manufacturing a rotational non-axisymmetric mirror partially including a non-axisymmetric surface, and manufacturing a molding die for the mirror. When a rotational non-axisymmetric surface is formed while scanning a surface of a workpiece by grinding or cutting means, the rotational non-axisymmetric surface is ground or cut by the grinding or cutting means while scanning the surface with movement in a direction along a meridional surface of the rotational non-axisymmetric surface.Type: ApplicationFiled: January 27, 2015Publication date: November 16, 2017Inventors: Koji HIRATA, Masahiko YATSU, Shuji KATO, Yuki MATSUMIYA
-
Publication number: 20170307878Abstract: The purpose of the present invention is to provide an optical device capable of rotationally adjusting a lens system with a flare-cut member incorporated therein. For this purpose, the flare-cut member according to the present invention is characterized by including a light shield surface for shielding the light flux incident on the periphery of a lens, and an opening formed in the light shield surface and causing the light flux incident on a lens element to pass therethrough, wherein the opening is formed in a rotationally symmetrical shape.Type: ApplicationFiled: January 28, 2015Publication date: October 26, 2017Inventors: Masahiko YATSU, Shuji KATO
-
Publication number: 20170199308Abstract: A free-form surface lens is made of a transparent resin forming an oblique projection optical system including a free-form surface mirror in a projection type video display apparatus, this lens includes a lens effective region having a surface on which a predetermined free-form surface is formed, and an edge surface formed to surround the lens effective region, the lens effective region and the edge surface in a part of a circumference surrounding the lens effective region where the edge surface is not formed are joined to each other by at least either one of a curved surface and a flat surface set so as not to change a direction of a tilt of the lens effective region in vicinity of the lens effective region, and an end surface including at least either one of the curved surface and the flat surface is set as a tapered surface.Type: ApplicationFiled: May 29, 2014Publication date: July 13, 2017Applicant: HITACHI MAXELL, LTD.Inventors: Koji HIRATA, Masahiko YATSU, Yuki MATSUMIYA, Shuji KATO, Kayono KIMURA
-
Patent number: 9017120Abstract: An outboard motor includes an engine, a water intake opening arranged to suck in water, and a water supply path arranged to supply the water sucked in through the water intake opening to the engine. The engine includes a water path arranged to cause the water supplied from the water supply path to flow in a water jacket of a cylinder head, a water jacket of an exhaust pipe, and a water jacket of a cylinder block in this order.Type: GrantFiled: December 13, 2012Date of Patent: April 28, 2015Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Tomotaka Takano, Satoshi Miyazaki, Yusuke Takahashi, Shuji Kato, Atsushi Suzuki
-
Publication number: 20140333590Abstract: A digital pen includes a light emitting element configured to emit a light ray of a specific wavelength region; a pen tip configured to emit the light ray on a writing surface; a sensor configured to output information indicative of whether the pen tip contacts the writing surface; a controller configured to detect if the pen tip contacts the writing surface based on the information from the sensor; and a holding mechanism configured to hold pressure applied onto the sensor to be constant, through an elastic force of an elastic body. The controller determines that the pen tip contacts the writing surface when the sensor is free from the pressure, thereby dissolving a problem of an uncomfortable feeling for a user, which is caused by the fact that the track written by the digital pen is not immediately reflected on a screen.Type: ApplicationFiled: February 1, 2012Publication date: November 13, 2014Applicant: Hitachi Maxell, Ltd.Inventors: Koji Hirata, Tatsuya Ishikawa, Tsuneo Fujikura, Shuji Kato, Miyuki Ikeda, Yoshiho Seo, Takashi Kanbara, Toshiyuki Kimoto
-
Patent number: 8690625Abstract: An outboard motor includes a left bank and a right bank. An exhaust port in each of the left bank and the right bank is arranged outward relative to a cylinder axis line in an outer motor width direction. A left exhaust pipe is arranged outward relative to a crankcase and the left bank in the outer motor width direction. A right exhaust pipe is arranged outward relative to the crankcase and the right bank in the outer motor width direction. A catalyst is located in each of the left and right exhaust pipes.Type: GrantFiled: December 13, 2012Date of Patent: April 8, 2014Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Shuji Kato, Atsushi Suzuki, Daisuke Takasu, Satoshi Miyazaki, Yusuke Takahashi, Makoto Kuroiwa
-
Patent number: 8690624Abstract: A vessel propulsion apparatus includes a first exhaust passage including an upward guiding portion that guides exhaust generated by an engine upward, a second exhaust passage disposed at a downstream side relative to the first exhaust passage, and a communication passage communicating the first exhaust passage and the second exhaust passage with each other. The communication passage includes a first upstream end opening at the first exhaust passage and a second downstream end disposed below the first upstream end and opening at the second exhaust passage. Further, the communication passage includes an expanded portion disposed at a height in between the first upstream end and the second downstream end and being more expanded than the first upstream end and the second downstream end.Type: GrantFiled: July 16, 2012Date of Patent: April 8, 2014Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Shuji Kato, Satoshi Miyazaki
-
Publication number: 20130305104Abstract: A device fault handling system includes a host device provided on a network and a communication-compatible device that enables communication with the host device through the network. The communication-compatible device is configured to send to the host device fault event information indicating an occurrence of a fault in a specific function of the communication-compatible device, and the host device is configured to provide notification of query information to the user, based on the fault event information, as to whether the fault is to be handled by the user or whether the fault is to be handled on a host device side.Type: ApplicationFiled: April 5, 2013Publication date: November 14, 2013Applicant: FUNAI ELECTRIC CO., LTD.Inventors: Shuji Kato, Akifumi Matsumura