Patents Assigned to Kobayashi Co., Ltd.
  • Patent number: 12112957
    Abstract: To provide a release film not to contaminate a mold or a molded article. The present invention provides a release film comprising a base layer formed of an easily moldable polyethylene terephthalate resin and surface layers laminated on two faces of the base layer and formed of a fluororesin. The present invention also provides a method of manufacturing a release film. The method comprises an applying step of applying a fluororesin composition onto two faces of a base layer formed of an easily moldable polyethylene terephthalate resin and, after the applying step, a curing step of curing the fluororesin composition. By molding with the release film, contamination of a mold or a molded article is prevented. The release film can be used in molding multiple times.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: October 8, 2024
    Assignee: KOBAYASHI & CO., LTD.
    Inventors: Keisuke Sakai, Norifumi Iwawaki, Nanae Tanaka, Satoshi Hiramatsu, Akane Kawafuchi
  • Patent number: 11919205
    Abstract: The objective of the present invention is to provide a mold-release film that docs not contaminate the mold or the formed body. This invention provides a mold-release film comprising a base material layer formed from a thermoplastic resin, and a surface layer formed from a resin composition layered on at least one surface of the base material layer. The mold-release film has a trouser tear strength, conforming to JIS K 7128-1, of 5 N/mm or stronger. The resin composition has a peel strength of 15 mN/30 mm or weaker, as measured at 175° C. in accordance with JIS Z0237. The resin composition has an elongation at break of 70% or greater, as measured at 175° C. in accordance with JIS K 7127.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: March 5, 2024
    Assignee: KOBAYASHI & CO., LTD.
    Inventors: Keisuke Sakai, Nanae Tanaka
  • Patent number: 11920012
    Abstract: To provide a release film not to contaminate a mold or a molded article. The present invention provides a release film comprising, an oligomer bleeding prevention layer formed of an acrylic resin or a siloxane resin and laminated on a first face of a base layer that is formed of a polyethylene terephthalate resin; a surface layer formed of a fluororesin and laminated on the oligomer bleeding prevention layer; and a surface layer formed of a fluororesin and laminated on a second face of the base layer, or an oligomer bleeding prevention layer formed of an acrylic resin or a siloxane resin and laminated on a second face of the base layer, and a surface layer formed of a fluororesin and laminated on the oligomer bleeding prevention layer that is laminated on the second face.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: March 5, 2024
    Assignee: KOBAYASHI & CO., LTD.
    Inventors: Keisuke Sakai, Norifumi Iwawaki, Nanae Tanaka, Satoshi Hiramatsu, Akane Kawafuchi
  • Publication number: 20230340297
    Abstract: [Problems] To provide a photocurable composition that can be used for sealing materials with lower moisture permeability. [Solution] The present invention provides a photocurable composition containing a photocurable acrylic resin component and a clay mineral powder. The photocurable composition can be used for sealing solar batteries. The photocurable composition can be used for sealing electronic devices, The present invention can provide a cured product of the photocurable composition. The present invention can provide a solar battery containing a cured product of the photocurable composition as a sealing material. The present invention can provide an electronic device containing a cured product of the photocurable composition as a sealing material.
    Type: Application
    Filed: October 18, 2021
    Publication date: October 26, 2023
    Applicant: KOBAYASHI & CO.,LTD.
    Inventors: Yuri OHASHI, Hayato HOSHINO, Wataru HARADA
  • Publication number: 20230054528
    Abstract: The objective of the present invention is to provide a mold-release film that docs not contaminate the mold or the formed body. This invention provides a mold-release film comprising a base material layer formed from a thermoplastic resin, and a surface layer formed from a resin composition layered on at least one surface of the base material layer. The mold-release film has a trouser tear strength, conforming to JIS K 7128-1, of 5 N/mm or stronger. The resin composition has a peel strength of 15 mN/30 mm or weaker, as measured at 175° C. in accordance with JIS Z0237. The resin composition has an elongation at break of 70% or greater, as measured at 175° C. in accordance with JIS K 7127.
    Type: Application
    Filed: June 29, 2020
    Publication date: February 23, 2023
    Applicant: KOBAYASHI & CO.,LTD.
    Inventors: Keisuke SAKAI, Nanae TANAKA
  • Publication number: 20220396011
    Abstract: To provide a release film having an electrostatic dissipative property. The present invention provides a release film comprising a base layer formed of a polyester resin and a surface layer formed of a tetrafluoroethylene resin that comprises an electrically conductive filler, and the release film has a surface resistivity Rs of 1×1011? or less. Preferably, the electrically conductive filler comprises carbon black, and the tetrafluoroethylene resin further comprises particles having an average particle size of 1 ?m to 15 ?m determined by laser diffraction particle size analysis.
    Type: Application
    Filed: March 6, 2020
    Publication date: December 15, 2022
    Applicant: KOBAYASHI & CO., LTD.
    Inventors: Keisuke SAKAI, Nanae TANAKA
  • Publication number: 20220162479
    Abstract: An object of the invention is to provide a film having excellent weatherability. The present invention provides a film comprising: a base layer formed of a thermoplastic resin, and a fluororesin layer laminated to one face of the base layer, wherein the fluororesin layer contains a tetrafluoroethylene resin and a photostabilizer. The present invention also provides a method of manufacturing a fluororesin composition suitable for manufacturing the film. The method of manufacturing comprises a dissolving step in which a photostabilizer is dissolved in ester-based, ketone-based, or aromatic solvent to obtain a solution and a mixing step in which the solution is mixed with a fluororesin comprising tetrafluoroethylene resin.
    Type: Application
    Filed: March 6, 2020
    Publication date: May 26, 2022
    Applicant: KOBAYASHI & CO.,LTD.
    Inventors: Keisuke SAKAI, Nanae TANAKA
  • Publication number: 20220152882
    Abstract: An object of the invention is to provide a method for conditioning a surface of a molded article. The present invention relates to a combination of a mold used for curing a thermosetting resin and a release film placed between the thermosetting resin and the mold during the curing. The release film comprises a base layer formed of a thermoplastic resin and a surface layer formed of a particle-containing fluororesin and laminated to the face which is placed during the curing on the side of the thermosetting resin among the two faces of the base layer. The mold has an irregularity formed on the face brought into contact with the release film during the curing.
    Type: Application
    Filed: September 24, 2019
    Publication date: May 19, 2022
    Applicant: KOBAYASHI & CO.,LTD.
    Inventors: Keisuke SAKAI, Nanae TANAKA, Kenji MIYASHITA, Go KOBAYASHI
  • Publication number: 20210253815
    Abstract: To provide a release film not to contaminate a mold or a molded article. The present invention provides a release film comprising, an oligomer bleeding prevention layer formed of an acrylic resin or a siloxane resin and laminated on a first face of a base layer that is formed of a polyethylene terephthalate resin; a surface layer formed of a fluororesin and laminated on the oligomer bleeding prevention layer; and a surface layer formed of a fluororesin and laminated on a second face of the base layer, or an oligomer bleeding prevention layer formed of an acrylic resin or a siloxane resin and laminated on a second face of the base layer, and a surface layer formed of a fluororesin and laminated on the oligomer bleeding prevention layer that is laminated on the second face.
    Type: Application
    Filed: April 8, 2019
    Publication date: August 19, 2021
    Applicant: KOBAYASHI & CO.,LTD.
    Inventors: Keisuke SAKAI, Norifumi IWAWAKI, Nanae TANAKA, Satoshi HIRAMATSU, Akane KAWAFUCHI
  • Publication number: 20210257228
    Abstract: To provide a release film not to contaminate a mold or a molded article. The present invention provides a release film comprising a base layer formed of an easily moldable polyethylene terephthalate resin and surface layers laminated on two faces of the base layer and formed of a fluororesin. The present invention also provides a method of manufacturing a release film. The method comprises an applying step of applying a fluororesin composition onto two faces of a base layer formed of an easily moldable polyethylene terephthalate resin and, after the applying step, a curing step of curing the fluororesin composition. By molding with the release film, contamination of a mold or a molded article is prevented. The release film can be used in molding multiple times.
    Type: Application
    Filed: April 8, 2019
    Publication date: August 19, 2021
    Applicant: KOBAYASHI & CO.,LTD.
    Inventors: Keisuke SAKAI, Norifumi IWAWAKI, Nanae TANAKA, Satoshi HIRAMATSU, Akane KAWAFUCHI
  • Patent number: 10709837
    Abstract: An infusion set employing a spike cap, arranged at which there is an opening configured to prevent passage therethrough of solid or liquid but to allow passage therethrough of gas at interior of the cap, hydrophobic filter being arranged at a location inward from where a tip of spike is inserted at interior of the cap by way of an insertion port, and a lid exterior of the opening for closing the opening; and in which there are hook(s) for anchoring to infusion tubing and a clip equipped with a catch for a flange arranged at the spike. Employing the cap at the infusion set makes it possible to carry out preprocessing including priming and backpriming by a simple operation without leakage of liquid.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: July 14, 2020
    Assignee: KOBAYASHI & CO., LTD.
    Inventors: Koji Fukuoka, Go Kawaoi, Kazuyuki Osawa, Imari Endo
  • Patent number: 10682456
    Abstract: In the context of a package for sealing an infusion set therewithin, the present invention causes a plurality of illustrations in which elements and colors thereof which appear in a story, verse, or lyric of a song or nursery rhyme are depicted in images in order of appearance therein, the respective images being displayed on a surface of the package in order from frontmost to backmost in mutually offset and partially overlapping fashion, such that it is possible to extremely naturally and without difficulty grasp the colors and the order thereof, i.e., the order of administration, as a result of which it is possible to effectively prevent misidentification of administration procedure during use of the infusion set.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: June 16, 2020
    Assignee: KOBAYASHI & CO., LTD.
    Inventors: Koji Fukuoka, Go Kawaoi, Kazuyuki Osawa, Imari Endo
  • Patent number: 10518025
    Abstract: In an infusion set, a spike or a connector for connection with an intravenous drip needle is covered by a cap, arranged at which there is an opening configured so as to not allow passage therethrough of solid or liquid but so as to allow passage therethrough of gas at the interior of the cap, a hydrophobic filter being arranged at a location inward from where the tip of the spike or the connector for connection with an intravenous drip needle is inserted at the interior of the cap by way of an insertion port, and a lid at the exterior of said opening for closing said opening. A three-way stopcock having a primary tubing downstream branch connector equipped with a mechanism that connects in such fashion as to permit rotation about primary tubing as axis is provided.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: December 31, 2019
    Assignee: KOBAYASHI & CO., LTD.
    Inventors: Koji Fukuoka, Go Kawaoi, Kazuyuki Osawa, Imari Endo
  • Publication number: 20180243501
    Abstract: An infusion set comprising first member(s) constituting primary tubing and second member(s) constituting instant tubing covered by a cap, arranged at an opening configured so as not to allow passage of solid or liquid but so as to allow passage of gas at the interior of the cap, a hydrophobic filter being arranged at a location inward from where the tip of a connector for connection with a three-way stopcock or an intravenous drip needle is inserted at the interior of the cap by way of an insertion port, and a lid at the exterior of said opening for closing said opening. The infusion set makes it possible to carry out priming by means of a simple operation without leakage of liquid; and operations become improved due to the fact that first member(s) and second member(s) can be connected as desired by three-way stopcock(s) 5.
    Type: Application
    Filed: September 8, 2015
    Publication date: August 30, 2018
    Applicant: KOBAYASHI & CO., LTD.
    Inventors: Koji Fukuoka, Go Kawaoi, Imari Endo, Masaaki Mitsuhashi
  • Publication number: 20180021504
    Abstract: In the context of a package for sealing an infusion set therewithin, the present invention causes a plurality of illustrations in which elements and colors thereof which appear in a story, verse, or lyric of a song or nursery rhyme are depicted in images in order of appearance therein, the respective images being displayed on a surface of the package in order from frontmost to backmost in mutually offset and partially overlapping fashion, such that it is possible to extremely naturally and without difficulty grasp the colors and the order thereof, i.e., the order of administration, as a result of which it is possible to effectively prevent misidentification of administration procedure during use of the infusion set.
    Type: Application
    Filed: February 10, 2015
    Publication date: January 25, 2018
    Applicant: KOBAYASHI & CO., LTD.
    Inventors: Koji Fukuoka, Go Kawaoi, Kazuyuki Osawa, Imari Endo
  • Publication number: 20180021512
    Abstract: In an infusion set, a spike or a connector for connection with an intravenous drip needle is covered by a cap, arranged at which there is an opening configured so as to not allow passage therethrough of solid or liquid but so as to allow passage therethrough of gas at the interior of the cap, a hydrophobic filter being arranged at a location inward from where the tip of the spike or the connector for connection with an intravenous drip needle is inserted at the interior of the cap by way of an insertion port, and a lid at the exterior of said opening for closing said opening. A three-way stopcock having a primary tubing downstream branch connector equipped with a mechanism that connects in such fashion as to permit rotation about primary tubing as axis is provided.
    Type: Application
    Filed: February 9, 2015
    Publication date: January 25, 2018
    Applicant: KOBAYASHI & CO., LTD.
    Inventors: Koji Fukuoka, Go Kawaoi, Kazuyuki Osawa, Imari Endo
  • Publication number: 20180021511
    Abstract: An infusion set employing a spike cap, arranged at which there is an opening configured to prevent passage therethrough of solid or liquid but to allow passage therethrough of gas at interior of the cap, hydrophobic filter being arranged at a location inward from where a tip of spike is inserted at interior of the cap by way of an insertion port, and a lid exterior of the opening for closing the opening; and in which there are hook(s) for anchoring to infusion tubing and a clip equipped with a catch for a flange arranged at the spike. Employing the cap at the infusion set makes it possible to carry out preprocessing including priming and backpriming by a simple operation without leakage of liquid.
    Type: Application
    Filed: February 9, 2015
    Publication date: January 25, 2018
    Applicant: KOBAYASHI & CO.. LTD.
    Inventors: Koji Fukuoka, Go Kawaoi, Kazuyuki Osawa, Imari Endo
  • Patent number: 9579258
    Abstract: The drug delivery device (1) connects an syringe barrel (6) and a drug container (2) by means of a closed system, and delivers a drug between the syringe barrel and drug container through said closed system. This drug delivery device includes a first member (8) connected to the drug container (2) on the side of a stopper (4), and a second member (30) connected at one end to the first member and connected at the other end to the syringe barrel (6). The first member and the second member are connected by a fitting mechanism. A second hollow needle member (34) provided on the second member faces towards the first member, and the tip portion (36) and the base portion (38) are fixed. The first member has a first hollow needle member (12). The first member and the second member each have an elastic member (18 and 40).
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: February 28, 2017
    Assignee: KOBAYASHI & CO., LTD.
    Inventor: Koji Fukuoka
  • Patent number: 9566215
    Abstract: This drug delivery device delivers a drug between a syringe barrel and a drug container, and, by enveloping the entire the drug container used in drug delivery, prevents exposure to hazardous drugs adhering to the drug container. This drug delivery device includes: a first member connected to the drug container on the side of a stopper; a second member connected to the first member and to the syringe barrel; and a third member connected to the first member and covering the drug container in a sealed state. The first member has a first hollow needle member and a drug container holder, and the second member has a second hollow needle member. The third member has an opening portion, a bottom surface portion where the drug container is stably mounted, and a flexible member which is connected to the opening portion and the bottom surface portion.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: February 14, 2017
    Assignee: KOBAYASHI & CO., LTD.
    Inventor: Koji Fukuoka
  • Publication number: 20150209233
    Abstract: This drug delivery device delivers a drug between a syringe barrel and a drug container, and, by enveloping the entire the drug container used in drug delivery, prevents exposure to hazardous drugs adhering to the drug container. This drug delivery device includes: a first member connected to the drug container on the side of a stopper; a second member connected to the first member and to the syringe barrel; and a third member connected to the first member and covering the drug container in a sealed state. The first member has a first hollow needle member and a drug container holder, and the second member has a second hollow needle member. The third member has an opening portion, a bottom surface portion where the drug container is stably mounted, and a flexible member which is connected to the opening portion and the bottom surface portion.
    Type: Application
    Filed: April 2, 2012
    Publication date: July 30, 2015
    Applicant: KOBAYASHI & CO., LTD.
    Inventor: Koji Fukuoka