Patents by Inventor Hirofumi Otsuka
Hirofumi Otsuka 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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Patent number: 10864808Abstract: An outer weatherstrip formed of a thermoplastic elastomer fitted to an upper edge portion of a door panel of an automobile door, for sealing a space between the door panel and a door glass includes a main body consisting of a vehicle interior-side side wall, a top wall, and a vehicle exterior-side side wall, and an upper seal lip and a lower seal lip protruding from the vehicle interior-side side wall to the door glass side. A plasticizer-rich layer and a plasticizer-rich layer containing a higher proportion of a plasticizer component compared to the thermoplastic elastomer forming the upper seal lip and the lower seal lip are formed on the sides of the upper seal lip and the lower seal lip abutting on the door glass.Type: GrantFiled: December 20, 2018Date of Patent: December 15, 2020Assignee: TOYODA GOSEI CO., LTD.Inventors: Hirofumi Otsuka, Hiroshi Sugawa
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Patent number: 10611224Abstract: An automotive glass run that is attached to an inner periphery of a door frame of an automotive door, guides ascending and descending of a door glass, and is formed of a thermoplastic elastomer, includes: a main body having a substantially U-shaped cross section, the main body including a vehicle-exterior side wall, a vehicle-interior side wall, and a bottom wall; a holding lip that extends from at least one of the vehicle-exterior side wall and the vehicle-interior side wall and abuts on the door frame; and a plasticizer rich layer formed on at least one side of the holding lip abutting on the door frame, the plasticizer rich layer including a large amount of plasticizer component compared to the thermoplastic elastomer forming the holding lip.Type: GrantFiled: January 23, 2019Date of Patent: April 7, 2020Assignee: TOYODA GOSEI CO., LTD.Inventors: Hirofumi Otsuka, Hiroshi Sugawa
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Publication number: 20190232770Abstract: An outer weatherstrip formed of a thermoplastic elastomer fitted to an upper edge portion of a door panel of an automobile door, for sealing a space between the door panel and a door glass includes a main body consisting of a vehicle interior-side side wall, a top wall, and a vehicle exterior-side side wall, and an upper seal lip and a lower seal lip protruding from the vehicle interior-side side wall to the door glass side. A plasticizer-rich layer and a plasticizer-rich layer containing a higher proportion of a plasticizer component compared to the thermoplastic elastomer forming the upper seal lip and the lower seal lip are formed on the sides of the upper seal lip and the lower seal lip abutting on the door glass.Type: ApplicationFiled: December 20, 2018Publication date: August 1, 2019Inventors: Hirofumi Otsuka, Hiroshi Sugawa
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Publication number: 20190232772Abstract: An automotive glass run that is attached to an inner periphery of a door frame of an automotive door, guides ascending and descending of a door glass, and is formed of a thermoplastic elastomer, includes: a main body having a substantially U-shaped cross section, the main body including a vehicle-exterior side wall, a vehicle-interior side wall, and a bottom wall; a holding lip that extends from at least one of the vehicle-exterior side wall and the vehicle-interior side wall and abuts on the door frame; and a plasticizer rich layer formed on at least one side of the holding lip abutting on the door frame, the plasticizer rich layer including a large amount of plasticizer component compared to the thermoplastic elastomer forming the holding lip.Type: ApplicationFiled: January 23, 2019Publication date: August 1, 2019Inventors: Hirofumi OTSUKA, Hiroshi SUGAWA
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Patent number: 10093160Abstract: An opening trim weather strip includes an attaching base portion and a hollow seal portion. The hollow seal portion is formed to be divided into a first hollow portion and a second hollow portion. The first hollow portion includes a first outer peripheral sidewall extending from an opening end of a vehicle outside sidewall of the attaching base portion, the hollow seal portion connection wall, a first inner peripheral sidewall, and the vehicle outside sidewall. The second hollow portion includes a second outer peripheral sidewall and a second inner peripheral sidewall. A connector between the first outer peripheral sidewall and the second outer peripheral sidewall forms a hollow seal portion bent portion, and an outer surface of the hollow seal portion bent portion is formed to be positioned in the inner peripheral direction of the vehicle body opening peripheral edge than the tip portion of the second hollow portion.Type: GrantFiled: August 16, 2016Date of Patent: October 9, 2018Assignee: TOYODA GOSEI CO., LTD.Inventors: Masatoshi Nojiri, Hirofumi Otsuka, Hiroshi Sobue
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Publication number: 20180111571Abstract: The present invention discloses an integrally press-molded vehicular undercover. The undercover includes a needle-punched first fiber layer containing a first inorganic fiber and a first solidified thermoplastic binder and a needle-punched second fiber layer containing a second inorganic fiber and a second solidified thermoplastic binder. The first fiber layer and the second fiber layer are adhered to each other in a state that the undercover has a weak layer between the first fiber layer and the second fiber layer.Type: ApplicationFiled: October 18, 2017Publication date: April 26, 2018Inventors: Hiromichi MIYANO, Hirofumi OTSUKA
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Patent number: 9919590Abstract: An opening trim weatherstrip includes: a mounting base portion which is mounted on a flange; and a hollow seal portion, which is configured to be brought into abutment with a door frame or an outer circumference of a door panel of a motor vehicle door to seal a gap between the motor vehicle door and a vehicle body opening portion circumferential edge, including: a hollow root portion which is formed from the mounting base portion; and a hollow extension portion which is provided so as to extend transversely outwards from the hollow root portion; wherein a deformation rigidity of the hollow extension portion at a portion where the opening trim weatherstrip is mounted on a portion of the vehicle body opening portion circumferential edge which lies near a door hinge is higher than a deformation rigidity of the hollow extension portion at the other portion.Type: GrantFiled: March 15, 2016Date of Patent: March 20, 2018Assignee: TOYODA GOSEI CO., LTD.Inventors: Masatoshi Nojiri, Hirofumi Otsuka
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Patent number: 9740233Abstract: A pedal operation amount detection apparatus for an operation pedal apparatus that includes a transmitting member including a pedal arm of an operation pedal that is disposed to be pivotable about a support axis and subjected to a depressing operation, and an output member to which a depressing operation force is transmitted from the transmitting member and to which a reaction force corresponding to the depressing operation force is applied, the pedal operation amount detection apparatus includes a sensor member disposed on a load transmission path of the transmitting member and the reaction force and the pedal operation amount detection apparatus electrically detects deformation of the sensor member. The sensor member is an elongate member that is torsionally and elastically deformable about a torsion center line in a longitudinal direction and is disposed at a position offset from the transmitting member in a direction parallel to the support axis.Type: GrantFiled: September 13, 2012Date of Patent: August 22, 2017Assignees: TOYODA IRON WORKS CO., LTD., MINEBEA CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Noboru Fujiwara, Hirofumi Otsuka
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Patent number: 9610832Abstract: An object of the present invention is, even when the design of a weather strip body with a specific gravity of about 0.5 to 0.85 is improved using a nonwoven fabric, to provide a weather strip with excellent trackability and excellent adhesiveness between the weather strip body and the nonwoven fabric. The weather strip of the present invention comprises a weather strip body having a specific gravity of 0.5 to 0.85 and made of an ethylene-propylene copolymer rubber, an adhesive resin sheet comprising random polypropylene and a polypropylene-based thermoplastic elastomer, and a nonwoven fabric, said nonwoven fabric being attached to the weather strip body via the adhesive resin sheet.Type: GrantFiled: March 25, 2015Date of Patent: April 4, 2017Assignees: JAPAN VILENE COMPANY, LTD., TOYODA GOSEI CO., LTD.Inventors: Tatsuhiko Tsumura, Hirofumi Otsuka, Kazuhiro Takahashi
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Publication number: 20170050504Abstract: An opening trim weather strip includes an attaching base portion and a hollow seal portion. The hollow seal portion is formed to be divided into a first hollow portion and a second hollow portion. The first hollow portion includes a first outer peripheral sidewall extending from an opening end of a vehicle outside sidewall of the attaching base portion, the hollow seal portion connection wall, a first inner peripheral sidewall, and the vehicle outside sidewall. The second hollow portion includes a second outer peripheral sidewall and a second inner peripheral sidewall. A connector between the first outer peripheral sidewall and the second outer peripheral sidewall forms a hollow seal portion bent portion, and an outer surface of the hollow seal portion bent portion is formed to be positioned in the inner peripheral direction of the vehicle body opening peripheral edge than the tip portion of the second hollow portion.Type: ApplicationFiled: August 16, 2016Publication date: February 23, 2017Inventors: Masatoshi NOJIRI, Hirofumi OTSUKA, Hiroshi SOBUE
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Publication number: 20160272056Abstract: An opening trim weatherstrip includes: a mounting base portion which is mounted on a flange; and a hollow seal portion, which is configured to be brought into abutment with a door frame or an outer circumference of a door panel of a motor vehicle door to seal a gap between the motor vehicle door and a vehicle body opening portion circumferential edge, including: a hollow root portion which is formed from the mounting base portion; and a hollow extension portion which is provided so as to extend transversely outwards from the hollow root portion; wherein a deformation rigidity of the hollow extension portion at a portion where the opening trim weatherstrip is mounted on a portion of the vehicle body opening portion circumferential edge which lies near a door hinge is higher than a deformation rigidity of the hollow extension portion at the other portion.Type: ApplicationFiled: March 15, 2016Publication date: September 22, 2016Inventors: Masatoshi NOJIRI, Hirofumi OTSUKA
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Patent number: 9442030Abstract: A pedal operation amount detecting device that is provided in an operating pedal apparatus including a transmitting member having a pedal arm of an operating pedal that is arranged so as to be pivotable about a support axis and that is depressed, and an output member to which a depression force is transmitted from the transmitting member and to which a reaction force corresponding to the depression force is applied, the pedal operation amount detecting device including a sensor member that is arranged on a load transmission path at a position offset from the transmitting member in a direction parallel to the support axis and that is deformed by the depression force and the reaction force, and the pedal operation amount detecting device electrically detecting a deformation of the sensor member.Type: GrantFiled: June 3, 2011Date of Patent: September 13, 2016Assignees: TOYODA IRON WORKS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, MINEBEA CO., LTD.Inventors: Noboru Fujiwara, Hiroshi Isono, Hirofumi Otsuka
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Patent number: 9400222Abstract: A pedal operation amount detecting device that is provided in an operating pedal apparatus including a transmitting member having a pedal arm of an operating pedal that is arranged so as to be pivotable about a support axis and that is depressed, and an output member to which a depression force is transmitted from the transmitting member and to which a reaction force corresponding to the depression force is applied, the pedal operation amount detecting device including a sensor member that is arranged on a load transmission path at a position offset from the transmitting member in a direction parallel to the support axis and that is deformed by the depression force and the reaction force, and the pedal operation amount detecting device electrically detecting a deformation of the sensor member.Type: GrantFiled: June 3, 2011Date of Patent: July 26, 2016Assignees: TOYODA IRON WORKS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, MINEBEA CO., LTD.Inventors: Noboru Fujiwara, Hiroshi Isono, Hirofumi Otsuka
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Publication number: 20150273992Abstract: An object of the present invention is, even when the design of a weather strip body with a specific gravity of about 0.5 to 0.85 is improved using a nonwoven fabric, to provide a weather strip with excellent trackability and excellent adhesiveness between the weather strip body and the nonwoven fabric. The weather strip of the present invention comprises a weather strip body having a specific gravity of 0.5 to 0.85 and made of an ethylene-propylene copolymer rubber, an adhesive resin sheet comprising random polypropylene and a polypropylene-based thermoplastic elastomer, and a nonwoven fabric, said nonwoven fabric being attached to the weather strip body via the adhesive resin sheet.Type: ApplicationFiled: March 25, 2015Publication date: October 1, 2015Applicants: Japan Vilene Company, Ltd., Toyoda Gosei Co., Ltd.Inventors: Tatsuhiko TSUMURA, Hirofumi OTSUKA, Kazuhiro TAKAHASHI
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Publication number: 20150089878Abstract: A glass run exhibiting excellent durability and a favorable design, which is formed by linearly connecting an outer sub-seal lip of a rear vertical side part of the glass run to a root of an outer seal lip of an upper side part thereof in a corner part. In the corner part of the glass run for automobile, an outer side wall, an inner side wall, a bottom wall, an outer seal lip and an inner seal lip are connected to corresponding parts of an upper side and a vertical side thereof by molding. In the upper side of the corner part, the outer side wall continuously extends from the upper side part of the glass run to an end of the corner part, an outer sub-seal lip of the vertical side of the corner part is linearly connected to a root of the outer seal lip of the upper side extended, and a thick joint is formed on an interior side of a connected part between the outer sub-seal lip and root of the outer seal lip of the upper side of the corner part so as to cover the connected part.Type: ApplicationFiled: July 29, 2014Publication date: April 2, 2015Inventors: Hirofumi OTSUKA, Kentaro ADACHI, Masahiko ITO
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Publication number: 20150020642Abstract: A pedal operation amount detection apparatus for an operation pedal apparatus that includes a transmitting member including a pedal arm of an operation pedal that is disposed to be pivotable about a support axis and subjected to a depressing operation, and an output member to which a depressing operation force is transmitted from the transmitting member and to which a reaction force corresponding to the depressing operation force is applied, the pedal operation amount detection apparatus includes a sensor member disposed on a load transmission path of the transmitting member and the reaction force and the pedal operation amount detection apparatus electrically detects deformation of the sensor member. The sensor member is an elongate member that is torsionally and elastically deformable about a torsion center line in a longitudinal direction and is disposed at a position offset from the transmitting member in a direction parallel to the support axis.Type: ApplicationFiled: September 13, 2012Publication date: January 22, 2015Applicants: Toyoda Iron Works Co., Ltd., Minebea CO., LTD.Inventors: Noboru Fujiwara, Hirofumi Otsuka
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Patent number: 8850900Abstract: An operation amount detection apparatus includes a transmission member that transmits a load corresponding to an operation amount between a shaft portion and an operation target member through connecting portions that connect a first support portion supported by the operation target member and a second support portion supported by the shaft portion, and a detection device that detects an operation amount based on an amount of deformation of the connecting portions. A plurality of the connecting portions are provided in parallel between the first support portion and the second support portion, and deflect due to transmission of a load so that the first support portion and the second support are relatively displaced in a direction of a linear motion. The respective connecting portions are mutually opposed in a direction perpendicular to a lengthwise direction of the shaft portion.Type: GrantFiled: December 21, 2010Date of Patent: October 7, 2014Assignees: Toyota Jidosha Kabushiki Kaisha, Minebea Co., Ltd.Inventors: Hiroshi Isono, Noboru Fujiwara, Hirofumi Otsuka
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Publication number: 20140290143Abstract: An opening trim weatherstrip includes an attaching base portion that is attached to a flange formed on a vehicle body opening peripheral edge and a hollow seal portion that is provided integrally on the attaching base portion and is abutted to an outer periphery of a door frame or a door panel of a vehicle door to seal a gap between the vehicle door and the vehicle body opening peripheral edge. The hollow seal portion includes a proximal hollow portion and a distal hollow portion. The distal hollow portion includes a first distal hollow seal wall and a second distal hollow seal wall. The first distal hollow seal wall is formed in a curved surface with a curvature radius of 20 to 80 mm.Type: ApplicationFiled: February 7, 2014Publication date: October 2, 2014Applicant: TOYODA GOSEI CO., LTD.Inventors: Yoshinobu YAMADA, Yasuhiro SHIMIZU, Mitsunobu TERAMOTO, Daisuke SAKAI, Hirofumi OTSUKA
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Patent number: 8793937Abstract: A weather strip having an insert and exhibiting a large holding force against a flange, includes a trim portion and a sealing portion. The trim portion has an outer holding lip formed to extend from an interior surface of an outer side wall, and an inner holding lip formed to extend from an interior surface of an inner side wall, and the insert is embedded in the trim portion. The insert is formed from a band-shaped metallic plate such that a large number of insert pieces, each having a rectangular configuration, extend in a width direction of the band-shaped metallic plate, and are joined in the vicinity of ends of the insert pieces with joining parts in a longitudinal direction of the band-shaped metallic plate into a ladder-shaped configuration. Slits are formed between adjacent insert pieces.Type: GrantFiled: August 30, 2011Date of Patent: August 5, 2014Assignee: Toyoda Gosei Co., Ltd.Inventors: Hirofumi Otsuka, Masatoshi Hotta
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Patent number: 8745927Abstract: A weatherstrip includes: a trim portion and a seal portion. The trim portion includes: a main body portion including a first and second side wall portions provided on a vehicle outer side and a vehicle inner side, respectively; a first and second holding lips extending from the first and second side wall portions, respectively; and a first extended wall portion extending from a distal end portion of the first side wall portion. In a trim portion attaching direction, a distal end portion of the first side wall portion is positioned at, or on the weatherstrip inner circumferential side of, a boundary portion between the trim portion and an inner circumferential surface of the seal portion, and a distal end portion of the second side wall portion is positioned on the weatherstrip inner circumferential side of a distal end portion of the first extended wall portion.Type: GrantFiled: September 20, 2012Date of Patent: June 10, 2014Assignee: Toyoda Gosei Co., Ltd.Inventors: Hirofumi Otsuka, Masatoshi Hotta