Patents by Inventor Norihisa Hirota
Norihisa Hirota 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: 20220234780Abstract: An aluminum can that has a maximum height of roughness Rz1 in the circumferential direction of not more than 0.5 ?m on the outer surface of the thinnest portion of the body portion and, as viewed on the side surface, has a ratio Ra1/Ra2 in a range of 0.8 to 1.2, the ratio Ra1/Ra2 being that of a mean surface roughness Ra1 in the circumferential direction on the outer surface of the thinnest portion of the body portion and a mean surface roughness Ra2 in the circumferential direction on the outer surface of the lower end portion of the body portion.Type: ApplicationFiled: April 19, 2022Publication date: July 28, 2022Applicants: TOYO SEIKAN CO., LTD., TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Norihisa HIROTA, Ryozo SHIROISHI, Takuho KUMAGAI, Kenichi TAKAO
-
Patent number: 11338954Abstract: An aluminum can wherein, when the light reflected by the outer surface of the body portion of the aluminum can is evaluated based on the LCH method by using a multi-angle spectral colorimeter, the aluminum can features a ratio C15h/C15w of 0.6 to 1.4, the ratio C15h/C15w being that of a saturation value C15h of the light reflected at 15 degrees in the direction of height and a saturation value C15w of the light reflected at an angle 15 of degrees in the circumferential direction based on the light regularly reflected from the light that is incident at 45 degrees in the direction of height and in the circumferential direction.Type: GrantFiled: October 20, 2017Date of Patent: May 24, 2022Assignees: TOYO SEIKAN CO., LTD., TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Norihisa Hirota, Ryozo Shiroishi, Takuho Kumagai, Kenichi Takao
-
Parison supply device and supply method, and blow molding machine and blow molding method using same
Patent number: 10632666Abstract: A blow molding capable of maintaining the parison thickness distribution uniform, fabricating high-quality molded products, and improving its productivity. A parison supply device for supplying, to a blow mold, a parison discharged from an extrusion die, the parison supply device including: a pair of chucks for pinching, from above and below, a parison discharged downward from the extrusion die; and a chuck operation part for controlling an operation of pinching the parison by the pair of chucks and an operation of moving the pair of chucks. By the chuck operation part, the pair of chucks performs the operation of pinching the parison while being moved downward.Type: GrantFiled: July 27, 2015Date of Patent: April 28, 2020Assignee: TOYO SEIKAN CO., LTD.Inventors: Norihisa Hirota, Atsushi Yoneda, Kouichi Narutaki, Akihiro Usami, Eiichiro Kaneko, Takuo Yamada, Youtarou Takahashi, Ikuo Komatsu -
Publication number: 20200071017Abstract: An aluminum can wherein, when the light reflected by the outer surface of the body portion of the aluminum can is evaluated based on the LCH method by using a multi-angle spectral colorimeter, the aluminum can features a ratio C15h/C15w of 0.6 to 1.4, the ratio C15h/C15w being that of a saturation value C15h of the light reflected at 15 degrees in the direction of height and a saturation value C15w of the light reflected at an angle 15 of degrees in the circumferential direction based on the light regularly reflected from the light that is incident at 45 degrees in the direction of height and in the circumferential direction.Type: ApplicationFiled: October 20, 2017Publication date: March 5, 2020Applicants: TOYO SEIKAN CO., LTD., TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Norihisa HIROTA, Ryozo SHIROISHI, Takuho KUMAGAI, Kenichi TAKAO
-
PARISON SUPPLY DEVICE AND SUPPLY METHOD, AND BLOW MOLDING MACHINE AND BLOW MOLDING METHOD USING SAME
Publication number: 20170173842Abstract: A blow molding capable of maintaining the parison thickness distribution uniform, fabricating high-quality molded products, and improving its productivity. A parison supply device for supplying, to a blow mold, a parison discharged from an extrusion die, the parison supply device including: a pair of chucks for pinching, from above and below, a parison discharged downward from the extrusion die; and a chuck operation part for controlling an operation of pinching the parison by the pair of chucks and an operation of moving the pair of chucks. By the chuck operation part, the pair of chucks performs the operation of pinching the parison while being moved downward.Type: ApplicationFiled: July 27, 2015Publication date: June 22, 2017Inventors: Norihisa HIROTA, Atsushi YONEDA, Kouichi NARUTAKI, Akihiro USAMI, Eiichiro KANEKO, Takuo YAMADA, Youtarou TAKAHASHI, Ikuo KOMATSU -
Patent number: 9636865Abstract: A parison supply device that continuously supplies, to a blow molding die, parison sections of a parison discharged from an extrusion die, the parison section having a specified length. The parison supply device includes a plurality of tension chucks and a tension chuck operation unit that operates the plurality of tension chucks. The tension chuck operation unit causes the individual tension chucks to perform a repeated operation of grasping the parison at a first position near the extrusion die and moving to a second position separated from the extrusion die such that, before the preceding tension chuck is separated by a set distance from the extrusion die at the second position, the following tension chuck grasps the parison at the first position, and then the parison section is supplied to the blow molding die.Type: GrantFiled: April 23, 2014Date of Patent: May 2, 2017Assignee: Toyo Seikan Group Holdings, Ltd.Inventors: Norihisa Hirota, Ikuo Komatsu, Hiromitsu Fukuoka, Atsushi Yoneda, Kouichi Narutaki
-
Patent number: 9573309Abstract: To efficiently feed a molten resin to the resin holders. An intermittently feeding device works to intermittently feed a transfer unit equipped with resin holders, and has a cam supported by a motor via a support. The cam is rotated by the motor. A cam follower of a moving block meshes with the screw of the cam, and the moving block moves along a support rail accompanying the turn of the cam. The motor rotates at a constant speed, and the transfer unit 3 is fed intermittently depending on the shapes of the cam and of the cam follower.Type: GrantFiled: March 8, 2012Date of Patent: February 21, 2017Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Norihisa Hirota, Yutaka Asano, Toshifusa Azuma
-
Publication number: 20160039139Abstract: A parison supply device that continuously supplies, to a blow molding die, parison sections of a parison discharged from an extrusion die, the parison section having a specified length. The parison supply device includes a plurality of tension chucks and a tension chuck operation unit that operates the plurality of tension chucks. The tension chuck operation unit causes the individual tension chucks to perform a repeated operation of grasping the parison at a first position near the extrusion die and moving to a second position separated from the extrusion die such that, before the preceding tension chuck is separated by a set distance from the extrusion die at the second position, the following tension chuck grasps the parison at the first position, and then the parison section is supplied to the blow molding die.Type: ApplicationFiled: April 23, 2014Publication date: February 11, 2016Applicant: Toyo Seikan Group Holdings, Ltd.Inventors: Norihisa HIROTA, Ikuo KOMATSU, Hiromitsu FUKUOKA, Atsushi YONEDA, Kouichi NARUTAKI
-
Patent number: 8911225Abstract: [Problem] To suppress the deviation of a synthetic resin to be fed to a metal mold and to enable the to-be-compression-molded synthetic resin to be easily molded into a shape of a pre-molded article that is to be molded. [Means for Solution] A female mold 31 includes a moving rod 34 and female mold body 33 surrounding the moving rod 34, the female mold body 33 forming a cavity 33a that is opened upward, the moving rod 34 moving up and down between a normal position and an elevated position above the normal position, and when a synthetic resin 8 is to be fallen down from the a synthetic resin cutting/holding unit 14, the moving rod 34 moves to the elevated position so that the synthetic resin 8 falls down on the upper surface of the center member.Type: GrantFiled: October 23, 2008Date of Patent: December 16, 2014Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Yutaka Asano, Norihisa Hirota, Jotaro Nagao
-
Patent number: 8765038Abstract: A method of feeding a composite molten resin capable of easily forming a multi-kind-multi-layer preform. An apparatus for feeding the composite molten resin has a nozzle portion which includes an outer discharge port in which an outermost annular flow path through which a main layer-forming molten resin flows, meets an outer annular flow path through which a sub-layer-forming molten resin flows inside of the outermost annular flow path; and an inner discharge port in which a shell layer-forming molten resin annularly flowing inside of the outer conflux path, meets the core layer-forming molten resin flowing inside the shell layer; the outer discharge port and the inner discharge port being arranged in this order from the downstream toward the upstream in a direction in which the molten resins flow; wherein provision is made of a shaft-like opening/closing valve for opening and closing the inner discharge port, and a gear pump for intermittently discharging the sub-layer-forming molten resin.Type: GrantFiled: March 15, 2007Date of Patent: July 1, 2014Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Norihisa Hirota, Kazunobu Watanabe, Yutaka Asano, Jotaro Nagao
-
Publication number: 20130334728Abstract: To efficiently feed a molten resin to the resin holders. An intermittently feeding device works to intermittently feed a transfer unit equipped with resin holders, and has a cam supported by a motor via a support. The cam is rotated by the motor. A cam follower of a moving block meshes with the screw of the cam, and the moving block moves along a support rail accompanying the turn of the cam. The motor rotates at a constant speed, and the transfer unit 3 is fed intermittently depending on the shapes of the cam and of the cam follower.Type: ApplicationFiled: March 8, 2012Publication date: December 19, 2013Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Norihisa Hirota, Yutaka Asano, Toshifusa Azuma
-
Patent number: 8236398Abstract: A cup-type polypropylene container obtained by compression-molding a polypropylene and having at least a body portion and a bottom portion, wherein the body portion has a thickness of not larger than 1.0 mm and a value K1 relating to peak intensity ratio and/or a value K2 relating to diffraction intensity ratio as defined herein. The cup-type polypropylene container features improved falling strength in the body portion and at the open end such as flange, improved pressure strength and excellent mechanical strength in the body portion. Also disclosed is a method of molding the cup-type polypropylene container.Type: GrantFiled: September 10, 2007Date of Patent: August 7, 2012Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Jotaro Nagao, Norihisa Hirota, Yutaka Asano
-
Patent number: 8043540Abstract: A method and a device for feeding a molten resin capable of accurately feeding the molten resin without the delay of feed timing by preventing the molten resin from adhering to route members before it seats on a mold to increase the positioning accuracy of the molten metal in the mold, and a method of manufacturing a molded part by using the fed molten resin. Vibration is provided to the route members such as molten resin guide pins (10, 40, 50), throat members (62, 70, 85), and female mold positioned in a route in which the molten resin (25) passes before it seats on the female mold (7, 63) by a vibration imparting device (27) or a gas layer film is formed on the surfaces thereof. Thus, the molten resin can be fed while preventing it from adhering to the route members.Type: GrantFiled: April 22, 2010Date of Patent: October 25, 2011Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Kimio Takeuchi, Takahiro Kurosawa, Kentaro Ichikawa, Norihisa Hirota
-
Patent number: 7833466Abstract: A biaxially oriented polyester container with a uniformly and sufficiently elongated and thin-walled bottom part having excellent drop strength, improved ESC resistance and reduced weight, and a method of manufacturing the container. The biaxially oriented polyester container of the present invention is characterized in that, when an X-ray diffraction measurement is performed in and near a bottom center area of the biaxially oriented polyester container formed by a double-stage orientation blow molding method, a peak indicative of molecular orientation is observed near a diffraction angle of 2?=15 to 30° and an orientation parameter (BO) expressed by the following formula (1) is in the range of 0.Type: GrantFiled: August 19, 2003Date of Patent: November 16, 2010Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Norihisa Hirota, Satoshi Shibata
-
Publication number: 20100264565Abstract: A method and a device for feeding a molten resin capable of accurately feeding the molten resin without the delay of feed timing by preventing the molten resin from adhering to route members before it seats on a mold to increase the positioning accuracy of the molten metal in the mold, and a method of manufacturing a molded part by using the fed molten resin. Vibration is provided to the route members such as molten resin guide pins (10, 40, 50), throat members (62, 70, 85), and female mold positioned in a route in which the molten resin (25) passes before it seats on the female mold (7, 63) by a vibration imparting device (27) or a gas layer film is formed on the surfaces thereof. Thus, the molten resin can be fed while preventing it from adhering to the route members.Type: ApplicationFiled: April 22, 2010Publication date: October 21, 2010Applicant: TOYO SEIKAN KAISHA, LTD.Inventors: Kimio Takeuchi, Takahiro Kurosawa, Kentaro Ichikawa, Norihisa Hirota
-
Publication number: 20100233398Abstract: A cup-type polypropylene container obtained by compression-molding a polypropylene and having at least a body portion and a bottom portion, wherein the body portion has a thickness of not larger than 1.0 mm and a value K1 relating to peak intensity ratio and/or a value K2 relating to diffraction intensity ratio as defined herein. The cup-type polypropylene container features improved falling strength in the body portion and at the open end such as flange, improved pressure strength and excellent mechanical strength in the body portion. Also disclosed is a method of molding the cup-type polypropylene container.Type: ApplicationFiled: September 10, 2007Publication date: September 16, 2010Applicant: Toyo Seikan Kaisha, LTDInventors: Jotaro Nagao, Norihisa Hirota, Yutaka Asano
-
Publication number: 20100201032Abstract: [Problem] To suppress the deviation of a synthetic resin to be fed to a metal mold and to enable the to-be-compression-molded synthetic resin to be easily molded into a shape of a pre-molded article that is to be molded. [Means for Solution] A female mold 31 includes a moving rod 34 and female mold body 33 surrounding the moving rod 34, the female mold body 33 forming a cavity 33a that is opened upward, the moving rod 34 moving up and down between a normal position and an elevated position above the normal position, and when a synthetic resin 8 is to be fallen down from the a synthetic resin cutting/holding unit 14, the moving rod 34 moves to the elevated position so that the synthetic resin 8 falls down on the upper surface of the center member.Type: ApplicationFiled: October 23, 2008Publication date: August 12, 2010Applicant: TOYO SEIKAN KAISHA, LTD.Inventors: Yutaka Asano, Norihisa Hirota, Jotaro Nagao
-
Patent number: 7731877Abstract: A method and a device for feeding a molten resin capable of accurately feeding the molten resin without the delay of feed timing by preventing the molten resin from adhering to route members before it seats on a mold to increase the positioning accuracy of the molten metal in the mold, and a method of manufacturing a molded part by using the fed molten resin. Vibration is provided to the route members such as molten resin guide pins (10, 40, 50), throat members (62, 70, 85), and female mold positioned in a route in which the molten resin (25) passes before it seats on the female mold (7, 63) by a vibration imparting device (27) or a gas layer film is formed on the surfaces thereof. Thus, the molten resin can be fed while preventing it from adhering to the route members.Type: GrantFiled: January 19, 2006Date of Patent: June 8, 2010Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Kimio Takeuchi, Takahiro Kurosawa, Kentaro Ichikawa, Norihisa Hirota
-
Publication number: 20090096129Abstract: A method of feeding a composite molten resin capable of easily forming a multi-kind-multi-layer preform. An apparatus for feeding the composite molten resin has a nozzle portion which includes an outer discharge port in which an outermost annular flow path through which a main layer-forming molten resin flows, meets an outer annular flow path through which a sub-layer-forming molten resin flows inside of the outermost annular flow path; and an inner discharge port in which a shell layer-forming molten resin annularly flowing inside of the outer conflux path, meets the core layer-forming molten resin flowing inside the shell layer; the outer discharge port and the inner discharge port being arranged in this order from the downstream toward the upstream in a direction in which the molten resins flow; wherein provision is made of a shaft-like opening/closing valve for opening and closing the inner discharge port, and a gear pump for intermittently discharging the sub-layer-forming molten resin.Type: ApplicationFiled: March 15, 2007Publication date: April 16, 2009Inventors: Norihisa Hirota, Kazunobu Watanabe, Yutaka Asano, Jotaro Nagao
-
Publication number: 20090078669Abstract: In a wide-mouth plastic container including a container body 2 provided with a mouth portion 3, a body portion 4 and a bottom portion 5 and a lid 6 fitted to the mouth portion 3, the body portion 4 is provided with an internal pressure variation-absorbing panel 4a and the mouth portion 3 is heat-sealed with a film material 7 to seal the opening of the container body 2, thereby securing high sealing property and heat resistance in high-temperature sterilization and improving the internal pressure variation absorbing performance of the container.Type: ApplicationFiled: June 13, 2006Publication date: March 26, 2009Inventors: Toshiki Sakaguchi, Ayako Abe, Kenji Yoshihiro, Norihisa Hirota, Naoto Matsuda