Patents by Inventor Kazuyuki Hatakeyama
Kazuyuki Hatakeyama 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: 11427368Abstract: A manufacturing method of double walled container comprises preparing a parison having a rigid outer layer and a flexible inner layer, enclosing the parison within a mold including split mold halves, thereby forming a molded parison including a pre-blow cylindrical section, a pre-blow conical bottom section, a pre-blow bottom projection, and a lower parison excessive burr, blowing gas into an inside of the molded parison, thereby forming a blown parison including a cylindrical section and a bottom section, the bottom section including a bottom projection, and removing the lower parison excessive burr from the blown parison, wherein the flexible inner layer is fixed to the rigid outer layer in the bottom projection.Type: GrantFiled: June 23, 2020Date of Patent: August 30, 2022Assignee: HEIWA KAGAKU INDUSTRY CO., LTD.Inventors: Kazuyuki Hatakeyama, Harumasa Hatakeyama
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Patent number: 10954022Abstract: A double walled container has a container bottom that is blow molded after an intermediate portion of a parison in the vertical direction is sandwiched by a split mold from the horizontal direction; at least a portion of the container bottom is sandwiched by the split mold; the container bottom has a bottom projection on the underside of the container bottom made of the outer layer of a rigid outer layer container and the outer layer of a flexible inner layer container; in the bottom projection, an extended portion of the rigid outer layer container and an extended portion of the flexible inner layer container have protrusions and recesses of different heights in the horizontal direction; and the protrusions and recesses are combined so that the extended portions of the rigid outer layer container and the flexible inner layer container do not shift vertically with respect to each other.Type: GrantFiled: November 15, 2016Date of Patent: March 23, 2021Assignee: HEIWA KAGAKU INDUSTRY CO., LTD.Inventors: Kazuyuki Hatakeyama, Harumasa Hatakeyama
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Publication number: 20200317386Abstract: A manufacturing method of double walled container comprises preparing a parison having a rigid outer layer and a flexible inner layer, enclosing the parison within a mold including split mold halves, thereby forming a molded parison including a pre-blow cylindrical section, a pre-blow conical bottom section, a pre-blow bottom projection, and a lower parison excessive burr, blowing gas into an inside of the molded parison, thereby forming a blown parison including a cylindrical section and a bottom section, the bottom section including a bottom projection, and removing the lower parison excessive burr from the blown parison, wherein the flexible inner layer is fixed to the rigid outer layer in the bottom projection.Type: ApplicationFiled: June 23, 2020Publication date: October 8, 2020Applicant: HEIWA KAGAKU INDUSTRY CO., LTD.Inventors: Kazuyuki Hatakeyama, Harumasa Hatakeyama
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Patent number: 10786941Abstract: Provided is a method for producing a double-layered container which can be easily produced using molding equipment that is not much different from conventionally used equipment and which comprises: a rigid outer layer container part; and a flexible inner layer container part of which the capacity can be changed inside the rigid outer layer container part, wherein, when a pair of partial molds are brought close to each other in order to be combined to form a split mold, at least parts of the joining faces of the pair of partial molds pinch a small outer diameter portion of a parison so as to form a gap burr, and, when a cap is screwed on, a gap for introducing external air in the interlayer of the double-layered container is formed at the small outer diameter portion from which the gap burr has been removed.Type: GrantFiled: February 16, 2017Date of Patent: September 29, 2020Assignee: HEIWA KAGAKU INDUSTRY CO., LTD.Inventors: Kazuyuki Hatakeyama, Harumasa Hatakeyama
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Patent number: 10518462Abstract: The present invention is a double-walled container manufacturing method in which when a pair of partial molds is brought towards each other to be assembled to form a split mold, at least a portion of the mating surfaces of the pair of partial molds clamp a parison at two side portions that are at horizontal positions facing each other. The method is able to manufacture the container easily with a molding device that does not differ significantly from the past and, in a double-walled container obtained from a relatively rigid outer container and a flexible inner container the volume of which can change according to the amount of contents filled inside said outer container, an opening for introducing outside air can be formed very easily and reliably at a lower cost than the processing cost of prior art.Type: GrantFiled: August 11, 2015Date of Patent: December 31, 2019Assignee: HEIWA KAGAKU INDUSTRY CO., LTD.Inventors: Kazuyuki Hatakeyama, Harumasa Hatakeyama
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Patent number: 10315803Abstract: Provided is a manufacturing method for a double container that allows easy manufacturing with a molding device not significantly different from conventional devices and that can, at a lower cost than the processing cost of conventional technology, very easily and reliably form, in a comparatively rigid outer container and in a double container that allows, inside the outer container, capacity to be varied with respect to the amount of content, an opening for allowing external air to enter. When a pair of partial molds are brought near each other in order to form a split mold, at least part of the mating faces of the pair of partial molds forms a projection by sandwiching a small outer diameter portion of a parison, a gap that passes between the double container is created by cutting off the projection, and the gap is opened and expanded by screwing on a cap.Type: GrantFiled: October 26, 2016Date of Patent: June 11, 2019Assignee: HEIWA KAGAKU INDUSTRY CO., LTD.Inventors: Kazuyuki Hatakeyama, Harumasa Hatakeyama
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Publication number: 20190070770Abstract: Provided is a method for producing a double-layered container which can be easily produced using molding equipment that is not much different from conventionally used equipment and which comprises: a rigid outer layer container part; and a flexible inner layer container part of which the capacity can be changed inside the rigid outer layer container part, wherein, when a pair of partial molds are brought close to each other in order to be combined to form a split mold, at least parts of the joining faces of the pair of partial molds pinch a small outer diameter portion of a parison so as to form a gap burr, and, when a cap is screwed on, a gap for introducing external air in the interlayer of the double-layered container is formed at the small outer diameter portion from which the gap burr has been removed.Type: ApplicationFiled: February 16, 2017Publication date: March 7, 2019Applicant: Heiwa Kagaku Industry Co., Ltd.Inventors: Kazuyuki Hatakeyama, Harumasa Hatakeyama
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Publication number: 20180354671Abstract: A double walled container has a container bottom that is blow molded after an intermediate portion of a parison in the vertical direction is sandwiched by a split mold from the horizontal direction; at least a portion of the container bottom is sandwiched by the split mold; the container bottom has a bottom projection on the underside of the container bottom made of the outer layer of a rigid outer layer container and the outer layer of a flexible inner layer container; in the bottom projection, an extended portion of the rigid outer layer container and an extended portion of the flexible inner layer container have protrusions and recesses of different heights in the horizontal direction; and the protrusions and recesses are combined so that the extended portions of the rigid outer layer container and the flexible inner layer container do not shift vertically with respect to each other.Type: ApplicationFiled: November 15, 2016Publication date: December 13, 2018Applicant: Heiwa Kagaku Industry Co., Ltd.Inventors: Kazuyuki Hatakeyama, Harumasa Hatakeyama
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Publication number: 20170320635Abstract: Provided is a double container which comprises a relatively rigid outer container and a flexible inner container disposed inside the outer container and capacity-variable in response to an amount of a content thereof The double container is configured to contain, particularly, a high-viscosity liquid, e.g., a liquid having a viscosity of 1000 to 100,000 mPa/s, and to be easily produced by a forming technique having no significant difference from conventional techniques, wherein the double container for a high-viscosity liquid is capable of containing the content without causing oxidation thereof, while maintaining the outer container in its original shape or dimensions, and discharging the content by squeezing the outer container, irrespective of a level of a remaining amount of the content.Type: ApplicationFiled: August 18, 2015Publication date: November 9, 2017Applicant: Heiwa Kagaku Industry Co., Ltd.Inventors: Kazuyuki Hatakeyama, Harumasa Hatakeyama
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Publication number: 20170283115Abstract: Provided is a manufacturing method for a double container that allows easy manufacturing with a molding device not significantly different from conventional devices and that can, at a lower cost than the processing cost of conventional technology, very easily and reliably form, in a comparatively rigid outer container and in a double container that allows, inside the outer container, capacity to be varied with respect to the amount of content, an opening for allowing external air to enter. When a pair of partial molds are brought near each other in order to form a split mold, at least part of the mating faces of the pair of partial molds forms a projection by sandwiching a small outer diameter portion of a parison, a gap that passes between the double container is created by cutting off the projection, and the gap is opened and expanded by screwing on a cap.Type: ApplicationFiled: October 26, 2016Publication date: October 5, 2017Applicant: Heiwa Kagaku Industry Co., Ltd.Inventors: Kazuyuki Hatakeyama, Harumasa Hatakeyama
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Publication number: 20170239873Abstract: The present invention is a double-walled container manufacturing method in which when a pair of partial molds is brought towards each other to be assembled to form a split mold, at least a portion of the mating surfaces of the pair of partial molds clamp a parison at two side portions that are at horizontal positions facing each other. The method is able to manufacture the container easily with a molding device that does not differ significantly from the past and, in a double-walled container obtained from a relatively rigid outer container and a flexible inner container the volume of which can change according to the amount of contents filled inside said outer container, an opening for introducing outside air can be formed very easily and reliably at a lower cost than the processing cost of prior art.Type: ApplicationFiled: August 11, 2015Publication date: August 24, 2017Applicant: Heiwa Kagaku Industry Co., Ltd.Inventors: Kazuyuki Hatakeyama, Harumasa Hatakeyama
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Publication number: 20110001275Abstract: The present invention is directed to a biomass-derived plastic laminated molding shaped in bottle(s), which, when hermetically sealed, do not deform under load and have their high-impact property enhanced, and to a manufacturing method of the same. The biomass-derived plastic laminated molding is characterized in that a preform is molded out of plastic in laminated shape so as to have at least one of layers composed of biomass-derived plastic by 25 wt % or over and the remaining layers composed of polyolefin resins, and that the plastic preform undergoes annealing where it is exposed to blown air heated to raise temperature at a rate of 5 to 20° C./min from the room temperature up to 85 to 100° C. at which the preform is left for 3 to 10 minutes, and thereafter, the blown air is gradually cooled down at the rate of 10 to 15° C.Type: ApplicationFiled: March 10, 2009Publication date: January 6, 2011Inventors: Kazuyuki Hatakeyama, Harumasa Hatakeyama
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Patent number: 6391972Abstract: It is an object of the present invention to provide a plastic article having moist touch, which differs from the smooth touch peculiar to the conventional plastic articles. A plastic article is characterized in that the surface of the article is at least partially constituted from a styrenic thermoplastic elastomer, an olefinic thermoplastic elastomer, a blend of a styrenic thermoplastic elastomer and a polyolefin, or a blend of an olefinic thermoplastic elastomer and a polyolefin.Type: GrantFiled: September 16, 1999Date of Patent: May 21, 2002Assignee: Heiwa Kagaku Kogyosho Co., Ltd.Inventor: Kazuyuki Hatakeyama