Patents by Inventor Naomi Okamura

Naomi Okamura 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: 10920068
    Abstract: Provided is a novel curable composition that is a two-pack type curable composition that includes an epoxy resin and a crosslinkable silicon group-containing organic polymer, excels in storage stability, and does not experience curing delays, an increase in viscosity of the base material, or the deterioration of the base material such as gelation or the deposition of insoluble material. Also provided is a novel curable composition that excels in storage stability even when water is added to improve deep portion curability. A two-pack type epoxy composition according to the present invention contains: a base material that includes (A) an epoxy resin, (B) a compound having an Si—F bond, and (C) an alkoxysilane not having at least one group selected from the group consisting of a primary amino group, a secondary amino group, and a mercapto group; and a curing agent that includes (D) a crosslinkable silicon group-containing organic polymer, and (E) a tertiary amine compound.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: February 16, 2021
    Assignee: CEMEDINE CO., LTD.
    Inventors: Shingo Yano, Satoshi Yoshikawa, Naomi Okamura
  • Patent number: 10844251
    Abstract: Provided is a method of producing a pressure-sensitive adhesive containing a cured product of a curable composition containing a crosslinkable silicon group-containing organic polymer and an adhesion-imparting resin as a pressure-sensitive adhesive layer; curing of the curable composition does not proceed when heated during production, i.e., the curable composition has excellent stability when heated, and the crosslinking reaction of the curable composition proceeds by some sort of trigger. The pressure-sensitive adhesive contains, as a pressure-sensitive adhesive layer, a cured product of a curable composition containing (A) a crosslinkable silicon group-containing organic polymer, (B) an adhesion-imparting resin, (C) a Si—F bond-containing silicon compound, and (D) a photobase generator.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: November 24, 2020
    Assignee: CEMEDINE CO., LTD.
    Inventors: Shouma Kouno, Tomohiro Midorikawa, Naomi Okamura, Hiroshi Yamaga
  • Publication number: 20190225795
    Abstract: Provided is a novel curable composition that is a two-pack type curable composition that includes an epoxy resin and a crosslinkable silicon group-containing organic polymer, excels in storage stability, and does not experience curing delays, an increase in viscosity of the base material, or the deterioration of the base material such as gelation or the deposition of insoluble material. Also provided is a novel curable composition that excels in storage stability even when water is added to improve deep portion curability. A two-pack type epoxy composition according to the present invention contains: a base material that includes (A) an epoxy resin, (B) a compound having an Si—F bond, and (C) an alkoxysilane not having at least one group selected from the group consisting of a primary amino group, a secondary amino group, and a mercapto group; and a curing agent that includes (D) a crosslinkable silicon group-containing organic polymer, and (E) a tertiary amine compound.
    Type: Application
    Filed: June 23, 2017
    Publication date: July 25, 2019
    Applicant: CEMEDINE CO., LTD.
    Inventors: Shingo YANO, Satoshi YOSHIKAWA, Naomi OKAMURA
  • Publication number: 20180298239
    Abstract: Provided is a method of producing a pressure-sensitive adhesive containing a cured product of a curable composition containing a crosslinkable silicon group-containing organic polymer and an adhesion-imparting resin as a pressure-sensitive adhesive layer; curing of the curable composition does not proceed when heated during production, i.e., the curable composition has excellent stability when heated, and the crosslinking reaction of the curable composition proceeds by some sort of trigger. The pressure-sensitive adhesive contains, as a pressure-sensitive adhesive layer, a cured product of a curable composition containing (A) a crosslinkable silicon group-containing organic polymer, (B) an adhesion-imparting resin, (C) a Si—F bond-containing silicon compound, and (D) a photobase generator.
    Type: Application
    Filed: April 22, 2016
    Publication date: October 18, 2018
    Applicant: CEMEDINE CO., LTD.
    Inventors: Shouma KOUNO, Tomohiro MIDORIKAWA, Naomi OKAMURA, Hiroshi YAMAGA
  • Patent number: 9718999
    Abstract: The present invention provides a curable composition containing an organic polymer having a crosslinkable silicon group, the composition having sufficient usable life and having adhesive properties with respect to an adherend (substrate) that are equivalent to those of the case where aminosilane is included. The composition comprises: (A) a crosslinkable silicon group-containing organic polymer; and (B) a crosslinkable silicon group-containing compound that forms, by means of light, at least one type of amino group selected from the group consisting of primary amino groups and secondary amino groups. The crosslinkable silicon group-containing organic polymer (A) is preferably at least one type selected from the group consisting of crosslinkable silicon group-containing polyoxyalkylene polymers and crosslinkable silicon group-containing (meth)acrylic-based polymers.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: August 1, 2017
    Assignee: CEMEDINE CO., LTD
    Inventors: Shouma Kouno, Hiroshi Yamaga, Naomi Okamura, Atsushi Saito
  • Publication number: 20160312089
    Abstract: The present invention provides a curable composition containing an organic polymer having a crosslinkable silicon group, the composition having sufficient usable life and having adhesive properties with respect to an adherend (substrate) that are equivalent to those of the case where aminosilane is included. The composition comprises: (A) a crosslinkable silicon group-containing organic polymer; and (B) a crosslinkable silicon group-containing compound that forms, by means of light, at least one type of amino group selected from the group consisting of primary amino groups and secondary amino groups. The crosslinkable silicon group-containing organic polymer (A) is preferably at least one type selected from the group consisting of crosslinkable silicon group-containing polyoxyalkylene polymers and crosslinkable silicon group-containing (meth)acrylic-based polymers.
    Type: Application
    Filed: December 12, 2014
    Publication date: October 27, 2016
    Applicant: CEMEDINE CO., LTD.
    Inventors: Shouma KOUNO, Hiroshi YAMAGA, Naomi OKAMURA, Atsushi SAITO
  • Publication number: 20160152783
    Abstract: A rapid-curing photocurable composition exerting excellent adhesion performance even with a low cumulative light quantity and being curable in a short time, thus ensuring excellent workability, is provided. A photocurable composition is made to includes: (A) a crosslinkable silicon group-containing organic polymer; (B) a photobase generator; and (C1) a silicon compound having an Si—F bond and/or (C2) one or more fluorine-based compounds selected from the group consisting of boron trifluoride, a boron trifluoride complex, a fluorinating agent, and an alkali metal salt of a polyfluoro compound. The (B) photobase generator is preferably a photolatent tertiary amine.
    Type: Application
    Filed: July 11, 2014
    Publication date: June 2, 2016
    Inventors: Hiroshi YAMAGA, Naomi OKAMURA, Yutaka WATANABE, Ryosuke ASAI, Shouma KOUNO, Atsushi SAITO
  • Patent number: 9296305
    Abstract: Provided is a charging apparatus for vehicles which charges a vehicle provided with a charging control circuit via a charging cable, comprising a charging control device which controls electrical charging to the vehicle by transmitting a charging control signal to the charging control circuit on the vehicle side, a charging control signal transmission restricting device which restricts transmission of the charging control signal, and a resetting device which forcibly resets the charging control signal when said restriction on transmission of the charging control signal is withdrawn.
    Type: Grant
    Filed: December 26, 2011
    Date of Patent: March 29, 2016
    Assignees: Toyota Jidosha Kabushiki Kaisha, Nitto Kogyo Corporation
    Inventors: Shinji Ichikawa, Naomi Okamura, Satoshi Tanaka, Atsuhisa Ando, Hiroyuki Okada, Hiroshi Suzuki, Yoshinori Aikawa, Shougo Inamori
  • Publication number: 20140021918
    Abstract: Provided is a charging apparatus for vehicles which charges a vehicle provided with a charging control circuit via a charging cable, comprising a charging control device which controls electrical charging to the vehicle by transmitting a charging control signal to the charging control circuit on the vehicle side, a charging control signal transmission restricting device which restricts transmission of the charging control signal, and a resetting device which forcibly resets the charging control signal when said restriction on transmission of the charging control signal is withdrawn.
    Type: Application
    Filed: December 26, 2011
    Publication date: January 23, 2014
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, NITTO KOGYO CORPORATION, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Shinji Ichikawa, Naomi Okamura, Satoshi Tanaka, Atsuhisa Ando, Hiroyuki Okada, Hiroshi Suzuki, Yoshinori Aikawa, Shougo Inamori
  • Patent number: 8519049
    Abstract: Disclosed is a curable composition including an organic polymer containing a crosslinkable silyl group, an ultraviolet ray absorbing agent having a triazine skeleton and a hindered amine based light stabilizer. The composition exhibits improved weather resistance in a thin layer and thick layer portion. Further, disclosed is a curable composition including an organic polymer containing a crosslinkable silyl group, a (meth)acrylic polymer containing an epoxy group, a divalent tin organic carboxylate and an organic amine compound. The composition exhibits excellent properties. Also, disclosed is a curable composition and sealing material including a reactive organic polymer containing at least one crosslinkable silyl group in one molecule thereof, a reactive organic polymer containing less than one crosslinkable silyl group in one molecule thereof, and thermally expandable hollow spheres. The composition has good physical properties. Also, disclosed is a fire-resistant structure forming method.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: August 27, 2013
    Assignee: Cemedine Co., Ltd.
    Inventors: Atsushi Saito, Masaki Ito, Shingo Kano, Hisashi Maekawahara, Naomi Okamura
  • Publication number: 20120316253
    Abstract: Disclosed is a curable composition including an organic polymer containing a crosslinkable silyl group, an ultraviolet ray absorbing agent having a triazine skeleton and a hindered amine based light stabilizer. The composition exhibits improved weather resistance in a thin layer and thick layer portion. Further, disclosed is a curable composition including an organic polymer containing a crosslinkable silyl group, a (meth)acrylic polymer containing an epoxy group, a divalent tin organic carboxylate and an organic amine compound. The composition exhibits excellent properties. Also, disclosed is a curable composition and sealing material including a reactive organic polymer containing at least one crosslinkable silyl group in one molecule thereof, a reactive organic polymer containing less than one crosslinkable silyl group in one molecule thereof, and thermally expandable hollow spheres. The composition has good physical properties. Also, disclosed is a fire-resistant structure forming method.
    Type: Application
    Filed: July 9, 2012
    Publication date: December 13, 2012
    Inventors: Atsushi Saito, Masaki Ito, Shingo Kano, Hisashi Maekawahara, Naomi Okamura
  • Patent number: 8217130
    Abstract: Disclosed herein is a curable composition excellent in workability, adhesion properties, rubber-like properties, storage stability, and quick curability. The curable composition comprises (A) a crosslinkable silyl group-containing organic polymer and (B) a (meth)acrylic polymer obtained by polymerizing a (meth)acrylic monomer having a polymerizable unsaturated bond in the presence of a metallocene compound and a crosslinkable silyl group-containing thiol compound, at least one end of the (meth)acrylic polymer being bonded to a residue, —S—R3 (where R3 represents a group having a crosslinkable silyl group) obtained by removing a hydrogen atom from the crosslinkable silyl group-containing thiol compound.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: July 10, 2012
    Assignee: Cemedine Co., Ltd.
    Inventors: Atsushi Saito, Tomonori Saito, Naomi Okamura
  • Publication number: 20100267898
    Abstract: Disclosed herein is a curable composition excellent in workability, adhesion properties, rubber-like properties, storage stability, and quick curability. The curable composition comprises (A) a crosslinkable silyl group-containing organic polymer and (B) a (meth)acrylic polymer obtained by polymerizing a (meth)acrylic monomer having a polymerizable unsaturated bond in the presence of a metallocene compound and a crosslinkable silyl group-containing thiol compound, at least one end of the (meth)acrylic polymer being bonded to a residue, —S—R3 (where R3 represents a group having a crosslinkable silyl group) obtained by removing a hydrogen atom from the crosslinkable silyl group-containing thiol compound.
    Type: Application
    Filed: June 25, 2010
    Publication date: October 21, 2010
    Inventors: Atsushi SAITO, Tomonori Saito, Naomi Okamura
  • Patent number: 7781559
    Abstract: Disclosed herein is a curable composition excellent in workability, adhesion properties, rubber-like properties, storage stability, and quick curability. The curable composition comprises (A) a crosslinkable silyl group-containing organic polymer and (B) a (meth)acrylic polymer obtained by polymerizing a (meth)acrylic monomer having a polymerizable unsaturated bond in the presence of a metallocene compound and a crosslinkable silyl group-containing thiol compound, at least one end of the (meth)acrylic polymer being bonded to a residue, —S—R3 (where R3 represents a group having a crosslinkable silyl group) obtained by removing a hydrogen atom from the crosslinkable silyl group-containing thiol compound.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: August 24, 2010
    Assignee: Cemedine Co., Ltd.
    Inventors: Atsushi Saito, Tomonori Saito, Naomi Okamura
  • Publication number: 20090118401
    Abstract: Firstly, disclosed is a curable composition which includes an organic polymer containing a crosslinkable silyl group, an ultraviolet ray absorbing agent having a triazine skeleton and a hindered amine based light stabilizer, and thereby, exhibits improved weather resistance both in a thin layer portion and in a thick layer portion. Secondly, disclosed is a curable composition which includes an organic polymer containing a crosslinkable silyl group, a (meth)acrylic polymer containing an epoxy group, a divalent tin organic carboxylate and an organic amine compound, and thereby, exhibits excellent weather resistance, anti-staining property, restoring property and durability.
    Type: Application
    Filed: September 27, 2005
    Publication date: May 7, 2009
    Inventors: Atsushi Saito, Masaki Ito, Shingo Kano, Hisashi Maekawahara, Naomi Okamura
  • Publication number: 20060293456
    Abstract: Disclosed herein is a curable composition excellent in workability, adhesion properties, rubber-like properties, storage stability, and quick curability. The curable composition comprises (A) a crosslinkable silyl group-containing organic polymer and (B) a (meth)acrylic polymer obtained by polymerizing a (meth)acrylic monomer having a polymerizable unsaturated bond in the presence of a metallocene compound and a crosslinkable silyl group-containing thiol compound, at least one end of the (meth)acrylic polymer being bonded to a residue, —S—R3 (where R3 represents a group having a crosslinkable silyl group) obtained by removing a hydrogen atom from the crosslinkable silyl group-containing thiol compound.
    Type: Application
    Filed: July 30, 2004
    Publication date: December 28, 2006
    Applicant: CEMEDINE CO., LTD.
    Inventors: Atsushi Saito, Tomonori Saito, Naomi Okamura
  • Patent number: 6234348
    Abstract: An extruding mechanism for a tubular bag and a method of extruding the contents of a tubular bag are provided, by which a sealing material or the like is extruded and discharged from a tubular bag with an extruding gun for a cartridge container, and which reduces the amount of discarded waste, thereby serving as one solution to environmental problems. The extruding mechanism includes an extruding gun having a holding base, and a stationary holding plate disposed on a front end portion of the holding base. The holding plate is provided with a notched portion opened upward. An extruding rod is equipped at its leading end with a pressing plate. A cylindrical member having a cylinder body is set on the holding base and accommodates the tubular bag and is opened at both ends, and a piston body is inserted into the cylinder body.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: May 22, 2001
    Assignee: Cemedine Co., Ltd.
    Inventors: Naomi Okamura, Kenji Matsuo, Hironobu Omura, Nobuyoshi Nishikawa, Akio Nimura
  • Patent number: 5984099
    Abstract: There is provided a container for display and storage comprising a body rectangular base sheet and a lid rectangular base sheet connected in a double spread sheet (or folded) condition by a folding line along the longitudinal direction. The rectangular base sheet on the body side is provided with a transparent cover in which an article can be contained and an opening is provided in the reverse face through which the article can be freely taken out and put in.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: November 16, 1999
    Assignees: Taoka Chemical Co., Ltd., Cemedine Co., Ltd.
    Inventors: Keizi Shimizu, Kuninori Ide, Yoshio Nagahama, Takashi Nogi, Chiaki Hata, Naomi Okamura, Akio Nimura, Takao Hino, Masayuki Fukai
  • Patent number: 5678731
    Abstract: The present invention relates to an improvement of a discharge container with a nozzle for housing a liquid, for example, an instantaneous adhesive or another moisture curing type adhesive, various adhesives such as solvent volatilizing type adhesive, various chemicals, foods, inks and medical supplies. The present invention is a discharge container with a nozzle which includes a container body for housing contents, a nozzle threadly attached to the container body, and a dual-shoulder type protective frame having a neck hole, wherein the base end of the mouth of the container body is inserted through the neck hole of the dual-shoulder type protective frame, and the container body is threadly attached to the nozzle, thereby allowing them to be made a one-piece structure.
    Type: Grant
    Filed: August 24, 1995
    Date of Patent: October 21, 1997
    Assignees: Taoka Chemical Company, Limited, Cemedine Company, Limited
    Inventors: Naomi Okamura, Akio Nimura, Masayuki Fukai, Chiaki Hata, Yoshio Nagahama, Keizi Shimizu
  • Patent number: RE35587
    Abstract: A tool for squeezing out a high-viscosity liquid from a flexible plastic tube container includes a spool having a slot in which the bottom of the tube container is received and locked, and a container holder having a pair of opposed bearing portions frictionally and rotatably supporting thereon a body of the spool, and a pair of opposed engagement portions engageable with a body of the tube container as the tube container is wound on the spool body from the bottom thereof. When a rotational force or torque on the spool is released, the spool is urged to rotate in the reverse direction by a resilient force stored in a portion of the flexible plastic tube container wound on the spool body. However, partly due to a friction acting between the spool body and the bearing portions, and partly due to the engagement between one of the engagement portions and the tube container, the spool is held immovable relative to the container holder against the resilient force of the tube container.
    Type: Grant
    Filed: November 20, 1995
    Date of Patent: August 19, 1997
    Assignee: Cemedine Co. Ltd.
    Inventors: Naomi Okamura, Akio Nimura, Takao Hino