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).

  • Patent number: 11312831
    Abstract: 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: Grant
    Filed: November 20, 2017
    Date of Patent: April 26, 2022
    Assignee: Toyo Seikan Group Holdings, Ltd.
    Inventors: Kazuki Nakajima, Shinya Jumyo, Yoshihiro Saruwatari, Norio Akuzawa, Ken Kashiwabara
  • Publication number: 20210132047
    Abstract: 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: Application
    Filed: February 8, 2018
    Publication date: May 6, 2021
    Inventors: Norio Akuzawa, Ken Kashiwabara, Kazuki Nakajima, Shinya Jumyo, Yoshihiro Saruwatari, Atsunori Isshiki
  • Publication number: 20200385171
    Abstract: 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: Application
    Filed: December 28, 2018
    Publication date: December 10, 2020
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Norio AKUZAWA, Kentarou ICHIKAWA, Hiroki IINO
  • Patent number: 10414534
    Abstract: 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: Grant
    Filed: January 30, 2017
    Date of Patent: September 17, 2019
    Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Hiroki Iino, Kentarou Ichikawa, Nobuhisa Koiso, Norio Akuzawa, Tetsuro Nomura
  • Publication number: 20190276598
    Abstract: 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: Application
    Filed: November 20, 2017
    Publication date: September 12, 2019
    Inventors: Kazuki Nakajima, Shinya Jumyo, Yoshihiro Saruwatari, Norio Akuzawa, Ken Kashiwabara
  • Patent number: 10384851
    Abstract: 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: Grant
    Filed: April 25, 2014
    Date of Patent: August 20, 2019
    Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Kentarou Ichikawa, Norio Akuzawa, Nobuhisa Koiso, Hiroki Iino
  • Patent number: 9796497
    Abstract: 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: Grant
    Filed: March 4, 2013
    Date of Patent: October 24, 2017
    Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Norio Akuzawa, Kentarou Ichikawa, Nobuhisa Koiso, Tetsuro Nomura, Hiroki Iino
  • Patent number: 9694929
    Abstract: 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: Grant
    Filed: April 23, 2013
    Date of Patent: July 4, 2017
    Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Hiroki Iino, Kentarou Ichikawa, Nobuhisa Koiso, Norio Akuzawa, Tetsuro Nomura
  • Publication number: 20170174383
    Abstract: 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: Application
    Filed: January 30, 2017
    Publication date: June 22, 2017
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Hiroki IINO, Kentarou ICHIKAWA, Nobuhisa KOISO, Norio AKUZAWA, Tetsuro NOMURA
  • Patent number: 9321198
    Abstract: 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: Grant
    Filed: December 27, 2013
    Date of Patent: April 26, 2016
    Assignee: TOYO SEIKAN KAISHA, LTD.
    Inventors: Kentarou Ichikawa, Nobuhisa Koiso, Norio Akuzawa
  • Publication number: 20160083167
    Abstract: 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: Application
    Filed: April 25, 2014
    Publication date: March 24, 2016
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Kentarou ICHIKAWA, Norio AKUZAWA, Nobuhisa KOISO, Hiroki IINO
  • Patent number: 9290287
    Abstract: 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: Grant
    Filed: September 18, 2012
    Date of Patent: March 22, 2016
    Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Kentarou Ichikawa, Nobuhisa Koiso, Norio Akuzawa, Hiroki Iino, Tetsuro Nomura
  • Patent number: 9283697
    Abstract: 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: Grant
    Filed: December 27, 2013
    Date of Patent: March 15, 2016
    Assignee: TOYO SEIKAN KAISHA, LTD.
    Inventors: Kentarou Ichikawa, Nobuhisa Koiso, Norio Akuzawa
  • Publication number: 20150267019
    Abstract: 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: Application
    Filed: October 18, 2013
    Publication date: September 24, 2015
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Norio Akuzawa, Kentarou Ichikawa, Nobuhisa Koiso, Hiroki Iino
  • Publication number: 20150083737
    Abstract: 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: Application
    Filed: April 23, 2013
    Publication date: March 26, 2015
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Hiroki Iino, Kentarou Ichikawa, Nobuhisa Koiso, Norio Akuzawa, Tetsuro Nomura
  • Publication number: 20150044406
    Abstract: 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: Application
    Filed: March 4, 2013
    Publication date: February 12, 2015
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Norio Akuzawa, Kentarou Ichikawa, Nobuhisa Koiso, Tetsuro Nomura, Hiroki Iino
  • Publication number: 20140231426
    Abstract: 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: Application
    Filed: September 18, 2012
    Publication date: August 21, 2014
    Inventors: Kentarou Ichikawa, Nobuhisa Koiso, Norio Akuzawa, Hiroki Iino, Tetsuro Nomura
  • Publication number: 20140183775
    Abstract: 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: Application
    Filed: December 27, 2013
    Publication date: July 3, 2014
    Applicant: TOYO SEIKAN KAISHA, LTD.
    Inventors: Kentarou ICHIKAWA, Nobuhisa KOISO, Norio AKUZAWA
  • Patent number: 8714401
    Abstract: [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: Grant
    Filed: March 24, 2009
    Date of Patent: May 6, 2014
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Kentarou Ichikawa, Nobuhisa Koiso, Norio Akuzawa
  • Publication number: 20140110415
    Abstract: 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: Application
    Filed: December 27, 2013
    Publication date: April 24, 2014
    Applicant: TOYO SEIKAN KAISHA, LTD.
    Inventors: Kentarou ICHIKAWA, Nobuhisa KOISO, Norio AKUZAWA