Patents by Inventor Hiroshi Hosokoshiyama
Hiroshi Hosokoshiyama 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: 11787589Abstract: A synthetic resin-made laminated peelable container, formed by blow molding a preform assembly in which an inner preform is assembled into an outer preform, includes: an outer layer body including a tubular-shaped outer mouth and a closed-bottom tubular-shaped trunk contiguous from the outer mouth; an inner layer body including a tubular-shaped inner mouth arranged on inner side of the outer mouth and a containing chamber laminated on inner surface of the trunk in peelable manner for volume reduction and deformation; and an ambient air inlet configured to introduce ambient air between the outer and inner layer bodies. The containing chamber is integrally provided with at least two thick ribs extending along axis line of the trunk to increase thickness of the containing chamber compared with remaining portions.Type: GrantFiled: November 14, 2018Date of Patent: October 17, 2023Assignee: YOSHINO KOGYOSHO CO., LTD.Inventor: Hiroshi Hosokoshiyama
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Patent number: 11780633Abstract: A synthetic resin-made container has an outer layer body and an inner layer body separably laminated on an inner surface of the outer layer body and is formed by stretch blow molding, and has: a tubular mouth portion; a shoulder portion located below the mouth portion and increasing in diameter downward; a barrel portion connected to and located below the shoulder portion; and a bottom portion closing a lower end of the barrel portion, wherein the mouth portion has an outside air introduction hole for introducing outside air into a space between the outer layer body and the inner layer body, and the inner layer body is made of a crystalline resin, and has, in at least a part of the mouth portion in the inner layer body, a crystallized region having a higher degree of crystallinity than other regions.Type: GrantFiled: November 1, 2018Date of Patent: October 10, 2023Assignee: YOSHINO KOGYOSHO CO., LTD.Inventors: Hiroshi Hosokoshiyama, Yuichi Okuyama, Junichi Chiba
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Publication number: 20230211925Abstract: A method of injection molding a test tube-shaped preform for biaxial stretch blow molding includes supplying a major material resin from outer and inner flow paths to a combined flow path for a predetermined time and rate. For a period of time within a range of the predetermined time period during which the major material resin is supplied, the intermediate layer resin is simultaneously supplied from the middle flow path to the combined flow path at a second predetermined supplying rate. A columnar laminated molten resin is injected into a cavity of a metal mold connected to a tip of the nozzle through a gate to fill the cavity, the columnar laminated molten resin being composed of the major material resin and the intermediate layer resin formed in the major material resin in a laminated manner that are combined into a columnar shape at the combined flow path.Type: ApplicationFiled: February 27, 2023Publication date: July 6, 2023Applicant: YOSHINO KOGYOSHO CO., LTD.Inventors: Hiroshi HOSOKOSHIYAMA, Junichi CHIBA, Seiji ISO
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Patent number: 11472090Abstract: Provided is a method for manufacturing a preform (1). The method includes injecting into a cavity of a mold through the gate: (i) a first colored resin (R1) for a first predetermined time period, and (ii) a second colored resin (R2), having a color different from that of the first colored resin, for a second predetermined time period.Type: GrantFiled: January 17, 2019Date of Patent: October 18, 2022Assignee: YOSHINO KOGYOSHO CO., LTD.Inventors: Junichi Chiba, Hiroshi Hosokoshiyama
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Patent number: 11365028Abstract: A method of injection molding a test tube-shaped preform for biaxial stretch blow molding includes supplying a major material resin from outer and inner flow paths to a combined flow path for a predetermined time and rate. For a period of time within a range of the predetermined time period during which the major material resin is supplied, the intermediate layer resin is simultaneously supplied from the middle flow path to the combined flow path at a second predetermined supplying rate. A columnar laminated molten resin is injected into a cavity of a metal mold connected to a tip of the nozzle through a gate to fill the cavity, the columnar laminated molten resin being composed of the major material resin and the intermediate layer resin formed in the major material resin in a laminated manner that are combined into a columnar shape at the combined flow path.Type: GrantFiled: September 18, 2017Date of Patent: June 21, 2022Assignee: YOSHINO KOGYOSHO CO., LTD.Inventors: Hiroshi Hosokoshiyama, Junichi Chiba, Seiji Iso
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Publication number: 20210039822Abstract: A synthetic resin-made laminated peelable container, formed by blow molding a preform assembly in which an inner preform is assembled into an outer preform, includes: an outer layer body including a tubular-shaped outer mouth and a closed-bottom tubular-shaped trunk contiguous from the outer mouth; an inner layer body including a tubular-shaped inner mouth arranged on inner side of the outer mouth and a containing chamber laminated on inner surface of the trunk in peelable manner for volume reduction and deformation; and an ambient air inlet configured to introduce ambient air between the outer and inner layer bodies. The containing chamber is integrally provided with at least two thick ribs extending along axis line of the trunk to increase thickness of the containing chamber compared with remaining portions.Type: ApplicationFiled: November 14, 2018Publication date: February 11, 2021Applicant: YOSHINO KOGYOSHO CO., LTD.Inventor: Hiroshi HOSOKOSHIYAMA
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Patent number: 10870245Abstract: A process includes: supplying a main resin from outer and inner flow channel, to a joined flow channel at a predetermined supply velocity for a predetermined time; supplying a second resin from a middle flow channel to the joined flow channel simultaneously with the main resin at a predetermined supply velocity for a certain time within the predetermined time; and sliding a shut-off pin to bring the pin forefront to a predetermined position near an outlet of the inner flow channel, open to the joined flow channel, before the second resin is supplied, or during a time starting after a time from the start of the second resin supply and ending with the termination of the supply, so that the velocity of main resin supply from the inner flow channel to the joined flow channel is reduced to a predetermined level by adjusting the degree of aperture for the outlet.Type: GrantFiled: September 3, 2019Date of Patent: December 22, 2020Assignee: YOSHINO KOGYOSHO CO., LTD.Inventors: Junichi Chiba, Kazuhiko Shimizu, Hiroshi Hosokoshiyama
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Publication number: 20200324931Abstract: A synthetic resin-made container has an outer layer body and an inner layer body separably laminated on an inner surface of the outer layer body and is formed by stretch blow molding, and has: a tubular mouth portion; a shoulder portion located below the mouth portion and increasing in diameter downward; a barrel portion connected to and located below the shoulder portion; and a bottom portion closing a lower end of the barrel portion, wherein the mouth portion has an outside air introduction hole for introducing outside air into a space between the outer layer body and the inner layer body, and the inner layer body is made of a crystalline resin, and has, in at least a part of the mouth portion in the inner layer body, a crystallized region having a higher degree of crystallinity than other regions.Type: ApplicationFiled: November 1, 2018Publication date: October 15, 2020Applicant: YOSHINO KOGYOSHO CO., LTD.Inventors: Hiroshi HOSOKOSHIYAMA, Yuichi OKUYAMA, Junichi CHIBA
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Patent number: 10723093Abstract: A process includes: supplying a main resin from outer and inner flow channel, to a joined flow channel at a predetermined supply velocity for a predetermined time; supplying a second resin from a middle flow channel to the joined flow channel simultaneously with the main resin at a predetermined supply velocity for a certain time within the predetermined time; and sliding a shut-off pin to bring the pin forefront to a predetermined position near an outlet of the inner flow channel, open to the joined flow channel, before the second resin is supplied, or during a time starting after a time from the start of the second resin supply and ending with the termination of the supply, so that the velocity of main resin supply from the inner flow channel to the joined flow channel is reduced to a predetermined level by adjusting the degree of aperture for the outlet.Type: GrantFiled: January 11, 2018Date of Patent: July 28, 2020Assignee: YOSHINO KOGYOSHO CO., LTD.Inventors: Junichi Chiba, Kazuhiko Shimizu, Hiroshi Hosokoshiyama
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Publication number: 20190381752Abstract: A process includes: supplying a main resin from outer and inner flow channel, to a joined flow channel at a predetermined supply velocity for a predetermined time; supplying a second resin from a middle flow channel to the joined flow channel simultaneously with the main resin at a predetermined supply velocity for a certain time within the predetermined time; and sliding a shut-off pin to bring the pin forefront to a predetermined position near an outlet of the inner flow channel, open to the joined flow channel, before the second resin is supplied, or during a time starting after a time from the start of the second resin supply and ending with the termination of the supply, so that the velocity of main resin supply from the inner flow channel to the joined flow channel is reduced to a predetermined level by adjusting the degree of aperture for the outlet.Type: ApplicationFiled: September 3, 2019Publication date: December 19, 2019Applicant: YOSHINO KOGYOSHO CO., LTD.Inventors: Junichi CHIBA, Kazuhiko SHIMIZU, Hiroshi HOSOKOSHIYAMA
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Patent number: 10392152Abstract: A biaxially stretched, blow molded container obtained by molding a laminated test tube shaped preform molded by an injection molding process. The container has a neck, a body, and a bottom, and having an outer shell and an inner bag to be laminated in a peelable manner with an outer layer inner surface. The inner bag can be deflated under a pressure drop therein. The outer layer and an inner layer have a laminar structure in which the lamination extends from a predetermined position of the neck to a lower end face. The layers are peeled from each other, starting from a lamination interface between the layers. This interface is exposed outside at the lower end face of the gate mark and can be used as an air intake vent that enables outside air to be taken into the space between layers.Type: GrantFiled: June 20, 2016Date of Patent: August 27, 2019Assignee: YOSHINO KOGYOSHO CO., LTD.Inventor: Hiroshi Hosokoshiyama
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Patent number: 10300670Abstract: Technical problems of this invention is to create an injection molding device and an injection molding process for a test tube shaped preform, that can laminate a colored layer at certain positions of a wall of the reform with a certain thickness in a manner of a high degree of accuracy.Type: GrantFiled: December 1, 2017Date of Patent: May 28, 2019Assignee: YOSHINO KOGYOSHO CO., LTD.Inventors: Hiroshi Hosokoshiyama, Junichi Chiba, Yosuke Watanabe
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Publication number: 20190143576Abstract: Provided is a method for manufacturing a preform (1). The method includes injecting into a cavity of a mold through the gate: (i) a first colored resin (R1) for a first predetermined time period, and (ii) a second colored resin (R2), having a color different from that of the first colored resin, for a second predetermined time period.Type: ApplicationFiled: January 17, 2019Publication date: May 16, 2019Applicant: YOSHINO KOGYOSHO CO., LTD.Inventors: Junichi CHIBA, Hiroshi HOSOKOSHIYAMA
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Publication number: 20180215115Abstract: Technical problems of this invention is to create an injection molding device and an injection molding process for a test tube shaped preform, that can laminate a colored layer at certain positions of a wall of the reform with a certain thickness in a manner of a high degree of accuracy.Type: ApplicationFiled: December 1, 2017Publication date: August 2, 2018Applicant: YOSHINO KOGYOSHO CO., LTD.Inventors: Hiroshi HOSOKOSHIYAMA, Junichi CHIBA, Yosuke WATANABE
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Publication number: 20180178465Abstract: A process includes: supplying a main resin from outer and inner flow channel, to a joined flow channel at a predetermined supply velocity for a predetermined time; supplying a second resin from a middle flow channel to the joined flow channel simultaneously with the main resin at a predetermined supply velocity for a certain time within the predetermined time; and sliding a shut-off pin to bring the pin forefront to a predetermined position near an outlet of the inner flow channel, open to the joined flow channel, before the second resin is supplied, or during a time starting after a time from the start of the second resin supply and ending with the termination of the supply, so that the velocity of main resin supply from the inner flow channel to the joined flow channel is reduced to a predetermined level by adjusting the degree of aperture for the outlet.Type: ApplicationFiled: January 11, 2018Publication date: June 28, 2018Applicant: YOSHINO KOGYOSHO CO., LTD.Inventors: Junichi CHIBA, Kazuhiko SHIMIZU, Hiroshi HOSOKOSHIYAMA
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Patent number: 9956707Abstract: A process includes: supplying a main resin from outer and inner flow channel, to a joined flow channel at a predetermined supply velocity for a predetermined time; supplying a second resin from a middle flow channel to the joined flow channel simultaneously with the main resin at a predetermined supply velocity for a certain time within the predetermined time; and sliding a shut-off pin to bring the pin forefront to a predetermined position near an outlet of the inner flow channel, open to the joined flow channel, before the second resin is supplied, or during a time starting after a time from the start of the second resin supply and ending with the termination of the supply, so that the velocity of main resin supply from the inner flow channel to the joined flow channel is reduced to a predetermined level by adjusting the degree of aperture for the outlet.Type: GrantFiled: November 6, 2012Date of Patent: May 1, 2018Assignee: YOSHINO KOGYOSHO CO., LTD.Inventors: Junichi Chiba, Kazuhiko Shimizu, Hiroshi Hosokoshiyama
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Patent number: 9884442Abstract: An injection molding device including a middle flow channel which forms an intermediate layer of a preform which is subject to biaxial stretch blow molding. The middle flow channel s segmented into a predetermined number of flow sub-channels by vertical blocking rib piece(s). Side wall's upstream portions of the vertical blocking rib piece are formed as angled surfaces whose distance from each other decreases from the downstream side to the upstream side, and/or, an end portion of the vertical blocking rib piece that is located on the downstream side is tucked in at least one of the inner flow channel and the outer flow channel.Type: GrantFiled: May 15, 2014Date of Patent: February 6, 2018Assignee: YOSHINO KOGYOSHO CO., LTD.Inventors: Tamotsu Toyoda, Hiroshi Hosokoshiyama, Mamoru Sato, Yasuhiro Ishizawa
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Patent number: 9862157Abstract: Disclosed is an injection molding device and process for a test tube shaped preform, that can laminate a colored layer at certain positions with a certain thickness accurately. Included is a nozzle section, in which a molten main resin and second resin are joined together to form a joined resin mass, the nozzle section including: an outer flow channel through which the main resin flows, an inner flow channel through which the second resin flows, a cylindrical column-shaped flow channel where the second resin joins the main resin, a first confluence where the main resin flows into the joined flow channel, a second confluence where the second resin flows into the joined flow channel wherein the first confluence is downstream of the second confluence, and a cylindrical shutoff pin inserted in the joined flow channel to open or close one or both the first and second confluences.Type: GrantFiled: April 9, 2012Date of Patent: January 9, 2018Assignee: YOSHINO KOGYOSHO CO., LTD.Inventors: Hiroshi Hosokoshiyama, Junichi Chiba, Yosuke Watanabe
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Publication number: 20180002071Abstract: A method of injection molding a test tube-shaped preform for biaxial stretch blow molding includes supplying a major material resin from outer and inner flow paths to a combined flow path for a predetermined time and rate. For a period of time within a range of the predetermined time period during which the major material resin is supplied, the intermediate layer resin is simultaneously supplied from the middle flow path to the combined flow path at a second predetermined supplying rate. A columnar laminated molten resin is injected into a cavity of a metal mold connected to a tip of the nozzle through a gate to fill the cavity, the columnar laminated molten resin being composed of the major material resin and the intermediate layer resin formed in the major material resin in a laminated manner that are combined into a columnar shape at the combined flow path.Type: ApplicationFiled: September 18, 2017Publication date: January 4, 2018Applicant: YOSHINO KOGYOSHO CO., LTD.Inventors: Hiroshi HOSOKOSHIYAMA, Junichi CHIBA, Seiji ISO
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Publication number: 20170197351Abstract: For a preform, on an outer circumferential side of a base material layer, which is made of a first colored resin, a colored layer, which is made of a second colored resin having a color different from that of the first colored resin and which forms a gradation region in which the layer thickness gradually decreases upward, is formed. Furthermore, on the outer circumferential side of the colored layer, a coating layer, which is made of the first colored resin, is formed.Type: ApplicationFiled: August 6, 2015Publication date: July 13, 2017Applicant: YOSHINO KOGYOSHO CO., LTD.Inventors: Junichi CHIBA, Hiroshi HOSOKOSHIYAMA