Patents by Inventor Norio Akuzawa
Norio Akuzawa 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: 11312831Abstract: The present invention relates to a carrier for bio-related molecule immobilization, which comprises a resin substrate, an amino group-containing compound layer that is formed on the resin substrate, and a polyvalent carboxylic acid layer that is formed on the amino group-containing compound layer. The carboxyl groups in the polyvalent carboxylic acid layer are actively esterified; and the (COO peak intensity)/(C—C peak intensity) ratio of the C1s spectrum is from 0.064 to 0.12 (inclusive) if the carrier surface before the active esterification is measured by X-ray photoelectron spectroscopy.Type: GrantFiled: November 20, 2017Date of Patent: April 26, 2022Assignee: Toyo Seikan Group Holdings, Ltd.Inventors: Kazuki Nakajima, Shinya Jumyo, Yoshihiro Saruwatari, Norio Akuzawa, Ken Kashiwabara
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Publication number: 20210132047Abstract: The present invention relates to a carrier for bio-related molecule immobilization comprising: a resin substrate; an amino group-containing compound layer formed on the resin substrate; and a polyvalent carboxylic acid layer formed on the amino group-containing compound layer, wherein a carboxyl group of the polyvalent carboxylic acid layer is subjected to active esterification, wherein the resin substrate contains an inorganic pigment, and wherein the resin substrate has a centerline surface average roughness Ra of 60 nm or less.Type: ApplicationFiled: February 8, 2018Publication date: May 6, 2021Inventors: Norio Akuzawa, Ken Kashiwabara, Kazuki Nakajima, Shinya Jumyo, Yoshihiro Saruwatari, Atsunori Isshiki
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Publication number: 20200385171Abstract: A dual-structure container including an inner bag container (31) and an outer container (41) obtained by simultaneous stretch-blow molding according to a stack preform method using an inner bag container preform (1) and an outer container preform (3). On a body (33) of the inner bag container (31), contraction-control thin portions (50) are formal at a plurality of sites at intervals in the circumferential direction such that the thin portions (50) extend like strips in the axial direction.Type: ApplicationFiled: December 28, 2018Publication date: December 10, 2020Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Norio AKUZAWA, Kentarou ICHIKAWA, Hiroki IINO
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Patent number: 10414534Abstract: A foamed and stretched plastic bottle having, in the body portion thereof, a foamed region in which foamed cells are distributed, wherein, in at least a portion of the foamed region, the lengths of the foamed cells in the axial direction of the bottle are so distributed as to gradually decrease as the positions of the foamed cells shift from the outer surface side of the body portion toward the central portion thereof and then gradually increase as their positions shift from the central portion thereof toward the inner surface side thereof. The foamed and stretched plastic bottle of the invention exhibits excellent light-shielding property.Type: GrantFiled: January 30, 2017Date of Patent: September 17, 2019Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Hiroki Iino, Kentarou Ichikawa, Nobuhisa Koiso, Norio Akuzawa, Tetsuro Nomura
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Publication number: 20190276598Abstract: The present invention relates to a carrier for bio-related molecule immobilization, which comprises a resin substrate, an amino group-containing compound layer that is formed on the resin substrate, and a polyvalent carboxylic acid layer that is formed on the amino group-containing compound layer. The carboxyl groups in the polyvalent carboxylic acid layer are actively esterified; and the (COO peak intensity)/(C—C peak intensity) ratio of the C1s spectrum is from 0.064 to 0.12 (inclusive) if the carrier surface before the active esterification is measured by X-ray photoelectron spectroscopy.Type: ApplicationFiled: November 20, 2017Publication date: September 12, 2019Inventors: Kazuki Nakajima, Shinya Jumyo, Yoshihiro Saruwatari, Norio Akuzawa, Ken Kashiwabara
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Patent number: 10384851Abstract: A composite foamed container forming, in the body portion, thereof, a foamed region in which foamed cells are distributed, the foamed region including a first gradationally foamed region A having a gradational distribution of the foamed cells of which the length in the direction of maximum stretch gradationally decreasing from the outer surface side of the body portion toward the inner surface side thereof and a second gradationally foamed region having a gradational distribution of the foamed cells of which the length in the direction of maximum stretch gradationally decreasing from the inner surface side of the body portion toward the outer surface side thereof. The container has a large resistance against the pressure exerted on the outer surface, good liquid-dispelling property and, at the same time, has improved appearance and heat resistance.Type: GrantFiled: April 25, 2014Date of Patent: August 20, 2019Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Kentarou Ichikawa, Norio Akuzawa, Nobuhisa Koiso, Hiroki Iino
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Patent number: 9796497Abstract: A stretched and foamed plastic formed body forming, in at least a portion thereof, a foamed region which incorporates foamed cells therein, wherein the foamed cells have a flat shape with a maximum thickness of not more than 30 ?m and an average aspect ratio of not less than 4 as viewed in cross section of the formed body perpendicular to a direction in which the formed body is stretched to a maximum degree, and a non-foamed plastic skin layer having no foamed cell distributed therein is formed on the outer surface of the foamed region. The formed body is, further, blended with a non-lustrous pigment as the coloring agent, which is different from a lustrous pigment such as flaky pigment, and exhibits a metal color over the foamed region thereof. The foamed formed body exhibiting a metal color and, specifically, a gold color or a silver color is thus provided without using any expensive lustrous pigment such as metal powder pigment or flaky pigment.Type: GrantFiled: March 4, 2013Date of Patent: October 24, 2017Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Norio Akuzawa, Kentarou Ichikawa, Nobuhisa Koiso, Tetsuro Nomura, Hiroki Iino
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Patent number: 9694929Abstract: A foamed and stretched plastic bottle having, in the body portion thereof, a foamed region in which foamed cells are distributed, wherein, in at least a portion of the foamed region, the lengths of the foamed cells in the axial direction of the bottle are so distributed as to gradually decrease as the positions of the foamed cells shift from the outer surface side of the body portion toward the central portion thereof and then gradually increase as their positions shift from the central portion thereof toward the inner surface side thereof. The foamed and stretched plastic bottle of the invention exhibits excellent light-shielding property.Type: GrantFiled: April 23, 2013Date of Patent: July 4, 2017Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Hiroki Iino, Kentarou Ichikawa, Nobuhisa Koiso, Norio Akuzawa, Tetsuro Nomura
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Publication number: 20170174383Abstract: A foamed and stretched plastic bottle having, in the body portion thereof, a foamed region in which foamed cells are distributed, wherein, in at least a portion of the foamed region, the lengths of the foamed cells in the axial direction of the bottle are so distributed as to gradually decrease as the positions of the foamed cells shift from the outer surface side of the body portion toward the central portion thereof and then gradually increase as their positions shift from the central portion thereof toward the inner surface side thereof. The foamed and stretched plastic bottle of the invention exhibits excellent light-shielding property.Type: ApplicationFiled: January 30, 2017Publication date: June 22, 2017Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Hiroki IINO, Kentarou ICHIKAWA, Nobuhisa KOISO, Norio AKUZAWA, Tetsuro NOMURA
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Patent number: 9321198Abstract: A foamed plastic container in which the cell diameters vary along a gradient so as not to decrease the content protection performance, in a manner quite different from the foamed cells distributed in the conventional foamed containers. The foamed plastic container has a container wall formed by using a plastic material and in which foamed cells are distributed, the lengths of the foamed cells in the surface direction of the container wall decreasing from the outer surface of the container toward the inner surface thereof.Type: GrantFiled: December 27, 2013Date of Patent: April 26, 2016Assignee: TOYO SEIKAN KAISHA, LTD.Inventors: Kentarou Ichikawa, Nobuhisa Koiso, Norio Akuzawa
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Publication number: 20160083167Abstract: A composite foamed container forming, in the body portion, thereof, a foamed region in which foamed cells are distributed, the foamed region including a first gradationally foamed region A having a gradational distribution of the foamed cells of which the length in the direction of maximum stretch gradationally decreasing from the outer surface side of the body portion toward the inner surface side thereof and a second gradationally foamed region having a gradational distribution of the foamed cells of which the length in the direction of maximum stretch gradationally decreasing from the inner surface side of the body portion toward the outer surface side thereof. The container has a large resistance against the pressure exerted on the outer surface, good liquid-dispelling property and, at the same time, has improved appearance and heat resistance.Type: ApplicationFiled: April 25, 2014Publication date: March 24, 2016Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Kentarou ICHIKAWA, Norio AKUZAWA, Nobuhisa KOISO, Hiroki IINO
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Patent number: 9290287Abstract: A foamed and stretched plastic container having a basic structure which includes a mouth portion and a body wall continuous to the mouth portion and is stretch-formed, the body wall forming a foamed region where foamed cells are distributed, and the mouth portion being an unfoamed region where no foamed cell is present, wherein the foamed cells present in the foamed region have a flat shape being stretched in the direction of stretch, and the foamed cells positioned in the central portion in the direction of thickness of the container wall have the largest lengths in the direction of maximum stretch.Type: GrantFiled: September 18, 2012Date of Patent: March 22, 2016Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Kentarou Ichikawa, Nobuhisa Koiso, Norio Akuzawa, Hiroki Iino, Tetsuro Nomura
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Patent number: 9283697Abstract: A foamed plastic container in which the cell diameters vary along a gradient so as not to decrease the content protection performance, in a manner quite different from the foamed cells distributed in the conventional foamed containers. The foamed plastic container has a container wall formed by using a plastic material and in which foamed cells are distributed, the lengths of the foamed cells in the surface direction of the container wall decreasing from the outer surface of the container toward the inner surface thereof.Type: GrantFiled: December 27, 2013Date of Patent: March 15, 2016Assignee: TOYO SEIKAN KAISHA, LTD.Inventors: Kentarou Ichikawa, Nobuhisa Koiso, Norio Akuzawa
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Publication number: 20150267019Abstract: A foamed stretch-formed body which has a polyolefin resin single-layer structure that is physically foamed into an expansion ratio of 1.01 to 2.0 times, wherein the surface roughness Ra (JIS-B-0601-1994) is not more than 10 ?m in the region where the cells are distributed therein. Despite of its polyolefin resin single-layer structure, the foamed stretch-formed body effectively suppresses the deterioration in the appearance or in the light-shielding capability caused by foaming.Type: ApplicationFiled: October 18, 2013Publication date: September 24, 2015Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Norio Akuzawa, Kentarou Ichikawa, Nobuhisa Koiso, Hiroki Iino
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Publication number: 20150083737Abstract: A foamed and stretched plastic bottle having, in the body portion thereof, a foamed region in which foamed cells are distributed, wherein, in at least a portion of the foamed region, the lengths of the foamed cells in the axial direction of the bottle are so distributed as to gradually decrease as the positions of the foamed cells shift from the outer surface side of the body portion toward the central portion thereof and then gradually increase as their positions shift from the central portion thereof toward the inner surface side thereof. The foamed and stretched plastic bottle of the invention exhibits excellent light-shielding property.Type: ApplicationFiled: April 23, 2013Publication date: March 26, 2015Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Hiroki Iino, Kentarou Ichikawa, Nobuhisa Koiso, Norio Akuzawa, Tetsuro Nomura
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Publication number: 20150044406Abstract: A stretched and foamed plastic formed body forming, in at least a portion thereof, a foamed region which incorporates foamed cells therein, wherein the foamed cells have a flat shape with a maximum thickness of not more than 30 ?m and an average aspect ratio of not less than 4 as viewed in cross section of the formed body perpendicular to a direction in which the formed body is stretched to a maximum degree, and a non-foamed plastic skin layer having no foamed cell distributed therein is formed on the outer surface of the foamed region. The formed body is, further, blended with a non-lustrous pigment as the coloring agent, which is different from a lustrous pigment such as flaky pigment, and exhibits a metal color over the foamed region thereof. The foamed formed body exhibiting a metal color and, specifically, a gold color or a silver color is thus provided without using any expensive lustrous pigment such as metal powder pigment or flaky pigment.Type: ApplicationFiled: March 4, 2013Publication date: February 12, 2015Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Norio Akuzawa, Kentarou Ichikawa, Nobuhisa Koiso, Tetsuro Nomura, Hiroki Iino
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Publication number: 20140231426Abstract: A foamed and stretched plastic container having a basic structure which includes a mouth portion and a body wall continuous to the mouth portion and is stretch-formed, the body wall forming a foamed region where foamed cells are distributed, and the mouth portion being an unfoamed region where no foamed cell is present, wherein the foamed cells present in the foamed region have a flat shape being stretched in the direction of stretch, and the foamed cells positioned in the central portion in the direction of thickness of the container wall have the largest lengths in the direction of maximum stretch.Type: ApplicationFiled: September 18, 2012Publication date: August 21, 2014Inventors: Kentarou Ichikawa, Nobuhisa Koiso, Norio Akuzawa, Hiroki Iino, Tetsuro Nomura
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Publication number: 20140183775Abstract: A foamed plastic container in which the cell diameters vary along a gradient so as not to decrease the content protection performance, in a manner quite different from the foamed cells distributed in the conventional foamed containers. The foamed plastic container has a container wall formed by using a plastic material and in which foamed cells are distributed, the lengths of the foamed cells in the surface direction of the container wall decreasing from the outer surface of the container toward the inner surface thereof.Type: ApplicationFiled: December 27, 2013Publication date: July 3, 2014Applicant: TOYO SEIKAN KAISHA, LTD.Inventors: Kentarou ICHIKAWA, Nobuhisa KOISO, Norio AKUZAWA
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Patent number: 8714401Abstract: [Problems] To provide a foamed plastic container in which the cell diameters are varying along a gradient so will not to decrease the content protection performance, quite differently from the foamed cells distributed in the conventional foamed containers. [Means for Solution] The foamed plastic container has a container wall 10 formed by using a plastic material and in which foamed cells 1 are distributed, the lengths of the foamed cells in the surface direction of the container wall 10 decreasing from the outer surface of the container toward the inner surface thereof.Type: GrantFiled: March 24, 2009Date of Patent: May 6, 2014Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Kentarou Ichikawa, Nobuhisa Koiso, Norio Akuzawa
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Publication number: 20140110415Abstract: A foamed plastic container in which the cell diameters vary along a gradient so as not to decrease the content protection performance, in a manner quite different from the foamed cells distributed in the conventional foamed containers. The foamed plastic container has a container wall formed by using a plastic material and in which foamed cells are distributed, the lengths of the foamed cells in the surface direction of the container wall decreasing from the outer surface of the container toward the inner surface thereof.Type: ApplicationFiled: December 27, 2013Publication date: April 24, 2014Applicant: TOYO SEIKAN KAISHA, LTD.Inventors: Kentarou ICHIKAWA, Nobuhisa KOISO, Norio AKUZAWA