Patents by Inventor Masafumi Okamoto
Masafumi Okamoto 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: 20240119894Abstract: A display apparatus includes: a display; a display driver that drives the display such that the display displays in accordance with display data; and a host controller that transfers update display data of one screen to the display driver. The display driver includes a light-emission controller that causes a self-luminous elements to emit light, and a memory that stores the update display data of the one screen. The display driver reads the update display data on the memory after an elapse of a predetermined period of time from a drive end time at which the display controller finishes driving in accordance with the update display data and drives the screen by using the read update display data. The display driver drives the self-luminous elements once or more at a timing when the update display data from the host controller to the display driver is not updated.Type: ApplicationFiled: December 15, 2023Publication date: April 11, 2024Inventors: YUICHI SATO, KENJI MAEDA, SHINJI YAMAMOTO, TAKUYA OKAMOTO, FUMITAKA SEKI, MASAFUMI ITO, YOHICHI TAKAZANE
-
Publication number: 20240071231Abstract: A human machine interface is configured to select an information display destination from among a plurality of display areas. The HCU acquires a sight line direction of a driver based on an image of an in-vehicle camera. The HCU displays, upon detecting a hop-off action of the driver based on an output signal of an in-vehicle sensor in a situation in which an attention target event such as a puddle, a step, other vehicle or the like exists on a road surface near a door of a driver's seat, in the display area corresponding to the driver's sight line direction, text or an image practically indicating (a) a content of an attention target event or (b) how to deal with a situation.Type: ApplicationFiled: November 9, 2023Publication date: February 29, 2024Inventors: Masafumi Nohara, Taro Kobayashi, Natsuko Miyazaki, Keiji Okamoto, Asuka Sakai, Kazuhiro Matsui, Haozhou Li, Jinhae Choi
-
Publication number: 20230257561Abstract: An aqueous dispersion composition includes in a stably dispersed state a copolymer comprising an ?,?-unsaturated carboxylic acid or an ester thereof as a constituent unit. The composition has a relatively high content of the copolymer and a relatively low viscosity. A production method for the aqueous dispersion composition is also provided. The method is for producing an aqueous dispersion composition of a copolymer comprising an ?,?-unsaturated carboxylic acid or an ester thereof as a constituent unit. The method includes the steps of (1) mixing a copolymer comprising an ?,?-unsaturated carboxylic acid or an ester thereof as a constituent unit, a basic substance, and water such that the concentration of the copolymer is 40 to 62 mass%, and that the copolymer is neutralized to a degree of neutralization of 10 to 35%, (2) applying a pressure of 0.1 to 2 MPa to the obtained mixture, and (3) further adding water after the pressure application to adjust the concentration of the copolymer to 30 to 60 mass%.Type: ApplicationFiled: July 13, 2021Publication date: August 17, 2023Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Masafumi OKAMOTO, Toshiaki FUJIWARA, Toshinari MIZUHASHI
-
Patent number: 11242476Abstract: The present invention provides an epoxy resin adhesive that exhibits low shrinkage and excellent adhesiveness. The epoxy resin adhesive includes (A) an epoxy resin, (B) a curing agent, and (C) a particulate polyolefin-based resin having a volume average particle size of 1 to 25 ?m, wherein the particulate polyolefin-based resin is spherical, and wherein the particulate polyolefin-based resin is present in an amount of 1 to 50 parts by mass per 100 parts by mass of the epoxy resin.Type: GrantFiled: December 2, 2014Date of Patent: February 8, 2022Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Masafumi Okamoto, Norihiro Sugihara, Taiji Matsukawa
-
Publication number: 20200270380Abstract: Provided is an ethylene-based resin aqueous dispersion that can form a film having excellent airtightness and adhesiveness when applied to a substrate, such as a fiber substrate. The ethylene-based resin aqueous dispersion of the present invention comprises a copolymer containing an ethylene unit and an ?,?-unsaturated carboxylic acid salt unit, a fatty acid salt, and an aqueous medium, wherein the copolymer and the fatty acid salt are dispersed in the aqueous medium.Type: ApplicationFiled: September 14, 2018Publication date: August 27, 2020Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Junichi MIZUKAWA, Masafumi OKAMOTO, Norihiro SUGIHARA, Hiromasa MIYAZAKI
-
Publication number: 20160355711Abstract: The present invention provides an epoxy resin adhesive that exhibits low shrinkage and excellent adhesiveness. The epoxy resin adhesive includes (A) an epoxy resin, (B) a curing agent, and (C) a particulate polyolefin-based resin having a volume average particle size of 1 to 25 ?m, wherein the particulate polyolefin-based resin is spherical, and wherein the particulate polyolefin-based resin is present in an amount of 1 to 50 parts by mass per 100 parts by mass of the epoxy resin.Type: ApplicationFiled: December 2, 2014Publication date: December 8, 2016Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Masafumi OKAMOTO, Norihiro SUGIHARA, Taiji MATSUKAWA
-
Patent number: 8779087Abstract: The present invention provides an aliphatic polycarbonate production method which, using carbon dioxide and an epoxide, easily produces aliphatic polycarbonates having a low metal catalyst content. The invention relates to an aliphatic polycarbonate production method which includes a step of polymerization by reacting carbon dioxide with an epoxide in the presence of a metal catalyst; and a step of treating a polymer obtainable in the polymerization step with a surfactant. High-purity aliphatic polycarbonate having a low metal catalyst content can be easily provided by the aliphatic polycarbonate production method of the invention.Type: GrantFiled: May 6, 2010Date of Patent: July 15, 2014Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Nobutaka Fujimoto, Masafumi Okamoto
-
Patent number: 8708411Abstract: A seat back frame includes: a base frame; a movable frame supported for movement in a frontward-rearward direction with respect to the base frame; and a biasing member biasing the movable frame frontwardly and permitting a rearward movement of the movable frame in response to a load having a given value or more. The base frame has an upper frame section supporting a headrest, and two side frame sections extending in an upward-downward direction on laterally opposite sides of the upper frame section. The movable frame has a back-receiving section located between the side frame sections, and two side support sections on laterally opposite sides of the back-receiving section to project forward from the side frame sections. Front ends of the side support sections are disposed to stop a rear surface of the pad that receives a rearward load from a back of an occupant.Type: GrantFiled: August 31, 2010Date of Patent: April 29, 2014Assignee: Delta Kogyo Co., Ltd.Inventors: Kenji Nakamura, Masafumi Okamoto, Ryota Okimoto
-
Patent number: 8651575Abstract: A lumbar support plate which is supported movably in a front/rear direction in a back frame that supports a headrest, and a biasing member which supports the lumbar support plate, are provided. A clutch mechanism which enables an output member to rotate by a rotating operation of a handle shaft, and an adjustment member which is capable of adjusting the front/rear position of the lumbar support plate in relation with an output member of the clutch mechanism are also provided. Also provided is a linking release mechanism which temporarily releases linkage with the clutch mechanism and permits rearward movement of the lumbar support plate, when a load equal to or greater than a prescribed value is applied to the lumbar support plate.Type: GrantFiled: February 23, 2012Date of Patent: February 18, 2014Assignee: Delta Kogyo Co., Ltd.Inventors: Masafumi Okamoto, Ryota Okimoto
-
Publication number: 20130276694Abstract: A quartz crucible for growing silicon single crystal comprises a crucible body made of a quartz material and a coating layer of a pure silicon which is formed on an inner wall of the crucible body and has purity equivalent to a silicon material that is to be filled into the crucible body. The pure silicon of the coating layer melts together with a silicon material filled in the quartz crucible.Type: ApplicationFiled: March 11, 2013Publication date: October 24, 2013Applicant: PANASONIC CORPORATIONInventors: Hidetoshi UTSURO, Masafumi OKAMOTO, Ryo KUWABARA, Naoya RYOKI
-
Patent number: 8444220Abstract: A vehicle seat has a back frame, an elastic member interconnecting side supports of the back frame, a movable member on the elastic member, and a restriction on the back frame. The movable member and the restriction engage each other in a first mode when a rearward load on the elastic member is less than a given value and are released from one another in a second mode when the load on the elastic member equals or exceeds the given value. The restriction restricts a rearward movement of the movable member in the first mode to limit rearward bending of the elastic member. Rearward movement of the movable member is permitted in the second mode to release the limitation on bending of the elastic member. Thus, the vehicle seat protects an occupant's neck during a rear collision.Type: GrantFiled: November 4, 2010Date of Patent: May 21, 2013Assignee: Delta Kogyo Co., Ltd.Inventors: Masafumi Okamoto, Ryota Okimoto
-
Patent number: 8353558Abstract: A vehicle seat lifter includes front and rear links with upper ends pivoted to a side frame of the seat and lower ends pivoted to front and rear floor brackets. A front hitting segment is in a front portion of the side frame spaced from a front catch in the front bracket, and a rear hitting segment is in a rear portion of the side frame spaced from a rear catch in the rear bracket. The front hitting segment is stopped by the front catch when the side frame is displaced frontward along with a deformation of the front and rear links due to forces during a frontal collision. The rear hitting segment is stopped by the rear catch when the side frame is displaced rearward along with a deformation of the front and rear links due to forces during a rear collision.Type: GrantFiled: July 27, 2010Date of Patent: January 15, 2013Assignee: Delta Kogyo Co., Ltd.Inventors: Masafumi Okamoto, Ryota Okimoto
-
Publication number: 20120217778Abstract: A lumbar support plate which is supported movably in a front/rear direction in a back frame that supports a headrest, and a biasing member which supports the lumbar support plate, are provided. A clutch mechanism which enables an output member to rotate by a rotating operation of a handle shaft, and an adjustment member which is capable of adjusting the front/rear position of the lumbar support plate in relation with an output member of the clutch mechanism are also provided. Also provided is a linking release mechanism which temporarily releases linkage with the clutch mechanism and permits rearward movement of the lumbar support plate, when a load equal to or greater than a prescribed value is applied to the lumbar support plate.Type: ApplicationFiled: February 23, 2012Publication date: August 30, 2012Applicant: DELTA KOGYO CO., LTD.Inventors: Masafumi Okamoto, Ryota Okimoto
-
Publication number: 20120123066Abstract: The present invention provides an aliphatic polycarbonate production method which, using carbon dioxide and an epoxide, easily produces aliphatic polycarbonates having a low metal catalyst content. The invention relates to an aliphatic polycarbonate production method which includes a step of polymerization by reacting carbon dioxide with an epoxide in the presence of a metal catalyst; and a step of treating a polymer obtainable in the polymerization step with a surfactant. High-purity aliphatic polycarbonate having a low metal catalyst content can be easily provided by the aliphatic polycarbonate production method of the invention.Type: ApplicationFiled: May 6, 2010Publication date: May 17, 2012Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Nobutaka Fujimoto, Masafumi Okamoto
-
Publication number: 20110121623Abstract: A vehicle seat has a back frame, an elastic member interconnecting side supports of the back frame, a movable member on the elastic member, and a restriction on the back frame. The movable member and the restriction engage each other in a first mode when a rearward load on the elastic member is less than a given value and are released from one another in a second mode when the load on the elastic member equals or exceeds the given value. The restriction restricts a rearward movement of the movable member in the first mode to limit rearward bending of the elastic member. Rearward movement of the movable member is permitted in the second mode to release the limitation on bending of the elastic member. Thus, the vehicle seat protects an occupant's neck during a rear collision.Type: ApplicationFiled: November 4, 2010Publication date: May 26, 2011Applicant: DELTA KOGYO CO., LTD.Inventors: Masafumi Okamoto, Ryota Okimoto
-
Publication number: 20110057492Abstract: A seat back frame includes: a base frame; a movable frame supported for movement in a frontward-rearward direction with respect to the base frame; and a biasing member biasing the movable frame frontwardly and permitting a rearward movement of the movable frame in response to a load having a given value or more. The base frame has an upper frame section supporting a headrest, and two side frame sections extending in an upward-downward direction on laterally opposite sides of the upper frame section. The movable frame has a back-receiving section located between the side frame sections, and two side support sections on laterally opposite sides of the back-receiving section to project forward from the side frame sections. Front ends of the side support sections are disposed to stop a rear surface of the pad that receives a rearward load from a back of an occupant.Type: ApplicationFiled: August 31, 2010Publication date: March 10, 2011Applicant: DELTA KOGYO CO., LTD.Inventors: Kenji Nakamura, Masafumi Okamoto, Ryota Okimoto
-
Publication number: 20110025106Abstract: A vehicle seat lifter includes front and rear links with upper ends pivoted to a side frame of the seat and lower ends pivoted to front and rear floor brackets. A front hitting segment is in a front portion of the side frame spaced from a front catch in the front bracket, and a rear hitting segment is in a rear portion of the side frame spaced from a rear catch in the rear bracket. The front hitting segment is stopped by the front catch when the side frame is displaced frontward along with a deformation of the front and rear links due to forces during a frontal collision. The rear hitting segment is stopped by the rear catch when the side frame is displaced rearward along with a deformation of the front and rear links due to forces during a rear collision.Type: ApplicationFiled: July 27, 2010Publication date: February 3, 2011Applicant: DELTA KOGYO CO., LTD.Inventors: Masafumi Okamoto, Ryota Okimoto
-
Publication number: 20090240025Abstract: The present invention has for its object to provide a novel organic zinc catalyst showing very high polymerizing activity in the reaction for producing a poly(alkylene carbonate) from carbon dioxide and an epoxide as well as a method of producing a poly(alkylene carbonate) using the same. The present invention provides an organic zinc catalyst to be used for the reaction for producing a poly(alkylene carbonate) from carbon dioxide and an epoxide, which is obtained by reacting a zinc compound, an aliphatic dicarboxylic acid and an aliphatic monocarboxylic acid in a mole ratio of 0.0001 to 0.1 relative to the aliphatic dicarboxylic acid.Type: ApplicationFiled: April 10, 2007Publication date: September 24, 2009Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Nobutaka Fujimoto, Masafumi Okamoto
-
Publication number: 20070072120Abstract: A method for producing a resin for a chemically amplified positive resist by polymerizing at least one monomer and/or at least one oligomer which is polymerized to provide a resin for a chemically amplified positive resist, in which two or more polymerization initiators are used to initiate the polymerization, thereby the resin is obtained at a high yield.Type: ApplicationFiled: September 28, 2006Publication date: March 29, 2007Applicant: Sumitomo Seika Chemicals Co., Ltd.Inventors: Shinya Okazaki, Masafumi Okamoto, Yusuke Fuji, Hiroaki Fujishima
-
Publication number: 20060293503Abstract: The present invention provides novel polyaminopyridines which are excellent in solubility in various solvents, and are preferably used in a polymer-type organic electroluminescent material, and a process for preparing the same. More particularly, the present invention provides polyaminopyridines having a repetition structural unit represented by the following general formula (1); and having a number average molecular weight in a range of 500 to 1000000.Type: ApplicationFiled: September 29, 2004Publication date: December 28, 2006Applicants: Sumitomo Seika Chemicals Co., Ltd, Tokyo Institute of TechnologyInventors: Takaki Kanbara, Takakazu Yamamoto, Nobutaka Fujimoto, Hiroyuki Kitayama, Masafumi Okamoto, Masato Fujikake