Patents by Inventor Norihiko Kaga

Norihiko Kaga 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: 11585044
    Abstract: A cord for reinforcing elastomers excellent in adhesion to elastomers such as rubber is provided. The cord is a cord for reinforcing elastomers (10) that includes metallic filaments (1) and a resin filament (2) twisted together, the resin filament (2) being made from a polymeric material having a melting point or softening point of 80 to 160° C.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: February 21, 2023
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Takahisa Shizuku, Nobuhiro Ando, Norihiko Kaga
  • Publication number: 20200231014
    Abstract: To provide a suspension arm having good rigidity and reduced weight, which includes a member A composed of a resin composition containing short fibers having a fiber length of less than 10 mm (short-fiber resin composition), and a member B composed of a resin composition containing continuous fibers having a fiber length of 10 mm or more (continuous-fiber resin composition).
    Type: Application
    Filed: April 2, 2020
    Publication date: July 23, 2020
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Kanji Tanaka, Norihiko Kaga, Yoichi Nishimuro, Gaku Yakushiji
  • Publication number: 20200108535
    Abstract: A resin member including an annular portion that defines a through hole with a circular cross section, and made of a resin containing reinforcing fibers, where the resin member has at least one gate trace; a weld portion is formed in the annular portion; and in a case where a polished surface along a perpendicular-to-axial direction perpendicular to a central axis of the through hole is formed in the annular portion, a sum of valley widths at half-value Txxh in a fiber orientation tensor waveform is 1.20 mm or more.
    Type: Application
    Filed: May 14, 2018
    Publication date: April 9, 2020
    Applicant: Bridgestone Corporation
    Inventors: Kanji TANAKA, Norihiko KAGA, Yoichi NISHIMURO
  • Publication number: 20200055340
    Abstract: A cord for reinforcing elastomers excellent in adhesion to elastomers such as rubber is provided. The cord is a cord for reinforcing elastomers (10) that includes metallic filaments (1) and a resin filament (2) twisted together, the resin filament (2) being made from a polymeric material having a melting point or softening point of 80 to 160° C.
    Type: Application
    Filed: October 25, 2019
    Publication date: February 20, 2020
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Takahisa Shizuku, Nobuhiro Ando, Norihiko Kaga
  • Patent number: 9673345
    Abstract: The present invention provides a composition for a solar cell sealing film prepared by mixing an ethylene-?-olefin copolymer a metallocene catalyst (m-LLDPE) and another polymer as resin components, wherein the composition has the same processability as a composition containing m-LLDPE alone as a resin component and provides a solar cell sealing film having the same transparency as the composition containing m-LLDPE alone as resin component. A composition for a solar cell sealing film comprising m-LLDPE and low-density polyethylene (LDPE), wherein the weight average molecular weight of m-LLDPE (Mw(m-LLDPE)) is 200,000 or less, the weight average molecular weight of LDPE (Mw(LDPE)) is 250,000 or less, and the mass ratio of m-LLDPE to LDPE (m-LLDPE:LDPE) is in a range of 80:20 to 30:70, and a solar cell sealing film prepared using the same.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: June 6, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Yasunori Tarutani, Norihiko Kaga, Hisataka Kataoka, Takato Inamiya, Akira Yoshitake
  • Publication number: 20160087130
    Abstract: The present invention provides a composition for a solar cell sealing film prepared by mixing an ethylene-?-olefin copolymer (m-LLDPE) polymerized using a metallocene catalyst and other polymers as resin components, wherein the composition has the same processability as a composition containing m-LLDPE alone and provides a solar cell sealing film having the same transparency as the case where m-LLDPE is used alone. A composition for a solar cell sealing film comprising m-LLDPE and low-density polyethylene (LDPE), wherein the weight average molecular weight of m-LLDPE (Mw(m-LLDPE)) is 200,000 or less, the weight average molecular weight of LDPE (Mw(LDPE)) is 250,000 or less, and the mass ratio of m-LLDPE to LDPE (m-LLDPE:LDPE) is in a range of 80:20 to 30:70, and a solar cell sealing film prepared using the same.
    Type: Application
    Filed: May 23, 2014
    Publication date: March 24, 2016
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yasunori TARUTANI, Norihiko KAGA, Hisataka KATAOKA, Takato INAMIYA, Akira YOSHITAKE
  • Patent number: 9293616
    Abstract: The present invention provides a solar cell sealing film whereby generation of gas is decreased. The solar cell sealing film comprises a resin mixture of an ethylene-vinyl acetate copolymer and a polyethylene, and an organic peroxide. The mass ratio (EVA:PE) of the ethylene-vinyl acetate copolymer (EVA) to the polyethylene (PE) is 8:2 to 3:7, the content of the organic peroxide is 0.1 to 1.0 parts by mass based on 100 parts by mass of the resin mixture, and the gel rate after crosslinking is 20 to 80% by mass.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 22, 2016
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Takato Inamiya, Hisataka Kataoka, Norihiko Kaga, Yasunori Tarutani
  • Patent number: 9287429
    Abstract: The present invention provides a solar cell sealing film in which the shrinkage is prevented when heated. The solar cell sealing film 13A, 13B comprises a resin mixture of an ethylene-vinyl acetate copolymer and polyethylene, and an organic peroxide. The mass ratio (EVA:PE) of the ethylene-vinyl acetate copolymer (EVA) to the polyethylene (PE) is 8:2 to 3:7 and the melting point of the resin mixture (temperature at a viscosity of 30,000 Pa·s) is 80 to 105° C.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 15, 2016
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Takato Inamiya, Hisataka Kataoka, Norihiko Kaga, Yasunori Tarutani
  • Publication number: 20160005901
    Abstract: Method for manufacturing a solar cell module in which a light-receiving side sealing film 13A and a backside sealing film 13B are each formed of a different resin composition from each other selected from a resin composition A and a resin composition B, both of the sealing films are heated when the pressurizing is initiated so as to reach to a minimum temperature X° C. and a maximum temperature Y° C., the resin composition A has a viscosity of 5.0×104 Pa·s or less at the temperature X° C., and the resin composition B has a viscosity of 7.0×104 Pa·s or less at the temperature X° C. and has a viscosity of 2.0×104 Pa·s or more at the temperature Y° C.
    Type: Application
    Filed: February 27, 2014
    Publication date: January 7, 2016
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Takato INAMIYA, Hisataka KATAOKA, Satoshi ARAAKE, Norihiko KAGA, Yasunori TARUTANI
  • Publication number: 20150303339
    Abstract: To provide a sealing film for a solar cell, which can be effectively formed and is capable of preventing wraparound even if heating is performed in a wide temperature range when members of the solar cell module are integrated. A pair of sealing films 13A and 13B for a solar cell including a light-receiving side sealing film 13A formed from a resin composition A; and a colored backside sealing film 13B formed from a resin composition B, wherein a temperature at which the resin composition B has a viscosity of 50,000 Pa·s is 95° C. or lower, and the resin composition B has a viscosity higher than that of the resin composition A at 80° C. and 100° C.
    Type: Application
    Filed: August 8, 2013
    Publication date: October 22, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Takato INAMIYA, Hisataka KATAOKA, Satoshi ARAAKE, Norihiko KAGA, Yasunori TARUTANI
  • Publication number: 20150267012
    Abstract: There is provided a cured sheet and a laminate having the same, wherein the cured sheet is prepared by curing a laminate forming sheet containing an ethylene-vinyl acetate copolymer and a polyethylene, excellent in adhesion durability and has a sufficient flexibility even in the case of a high content of the polyethylene. A cured sheet constituting a laminate and a laminate having the same, wherein the cured sheet is prepared by curing through cross-linking a laminate forming sheet comprising a composition containing an ethylene-vinyl acetate copolymer, a polyethylene and an organic peroxide; a weight ratio of the ethylene-vinyl acetate copolymer (EVA) to the polyethylene (PE) (EVA:PE) is in a range of 3:7 to 8:2; and the cured sheet has a sea-island structure wherein the ethylene-vinyl acetate copolymer constitutes a sea phase and the polyethylene constitutes an island phase.
    Type: Application
    Filed: October 15, 2013
    Publication date: September 24, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yasunori Tarutani, Norihiko Kaga, Hisataka Kataoka, Takato Inamiya, Satoshi Araake
  • Publication number: 20150038646
    Abstract: To provide a composition for producing a sheet for forming a laminate, which contains an ethylene-vinyl acetate copolymer and a polyethylene resin, by which the above-described problems in the width of the temperature range in which a processable viscosity range is obtained and the like are improved and which excels in processing properties such as a film-forming property when producing a sheet, and a sheet for forming a laminate using this. A composition for producing a sheet for forming a laminate, which contains an ethylene-vinyl acetate copolymer and polyethylene, wherein the composition has a sea-island structure in which the ethylene-vinyl acetate copolymer is a sea phase and the polyethylene is an island phase, and a sheet for forming a laminate using this.
    Type: Application
    Filed: January 24, 2013
    Publication date: February 5, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yasunori Tarutani, Norihiko Kaga, Hisataka Kataoka, Takato Inamiya, Satoshi Araake
  • Publication number: 20150007888
    Abstract: The present invention provides a solar cell sealing film in which the shrinkage is prevented when heated. The solar cell sealing film 13A, 13B comprises a resin mixture of an ethylene-vinyl acetate copolymer and polyethylene, and an organic peroxide. The mass ratio (EVA:PE) of the ethylene-vinyl acetate copolymer (EVA) to the polyethylene (PE) is 8:2 to 3:7 and the melting point of the resin mixture (temperature at a viscosity of 30,000 Pa·s) is 80 to 105° C.
    Type: Application
    Filed: January 25, 2013
    Publication date: January 8, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Takato Inamiya, Hisataka Kataoka, Norihiko Kaga, Yasunori Tarutani
  • Publication number: 20140366945
    Abstract: The present invention provides a solar cell sealing film whereby generation of gas is decreased. The solar cell sealing film comprises a resin mixture of an ethylene-vinyl acetate copolymer and a polyethylene, and an organic peroxide. The mass ratio (EVA:PE) of the ethylene-vinyl acetate copolymer (EVA) to the polyethylene (PE) is 8:2 to 3:7, the content of the organic peroxide is 0.1 to 1.0 parts by mass based on 100 parts by mass of the resin mixture, and the gel rate after crosslinking is 20 to 80% by mass.
    Type: Application
    Filed: January 25, 2013
    Publication date: December 18, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Takato Inamiya, Hisataka Kataoka, Norihiko Kaga, Yasunori Tarutani
  • Patent number: 8144386
    Abstract: There are provided particles for display media capable of properly controlling change in an amount of charge by heating and an information display panel, by using the particles for display media capable of eliminating a display failure and reduction in contrast ratio.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: March 27, 2012
    Assignee: Bridgestone Corporation
    Inventors: Norihiko Kaga, Kazuya Murata, Gaku Yakushiji
  • Publication number: 20120049138
    Abstract: Particles for display media having charging properties used for information display panel, is characterized in that, in the particles for display media in which an external additive is applied on a surface of a mother particle made of resin, the external additive made of an external additive of an weak hydrophobic property and an external additive made of a metal oxide is used. Herewith, the particles for display media which can drive under a low voltage driving, and thus reduce a cost of the information display panel using such particles for display media are provided.
    Type: Application
    Filed: April 30, 2010
    Publication date: March 1, 2012
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Hiroyuki Anzai, Norihiko Kaga, Gaku Yakushiji
  • Patent number: 8120837
    Abstract: A display media particle used for an information display panel having display media constituted of particles sealed between two substrates, at least one of which is transparent, for displaying information by moving the display media, is formed of a mother particle 32 made from materials including a base resin having child particles 33 added to a surface thereof. The base resin is a thermoplastic resin having a viscosity of no more than 1000 Pa·s at 260° C. and a shear rate at 122 s?1, and a heatproof temperature at no less than 430° C. Since optimal conditions of the viscosity and the heatproof temperature are specified, it is possible to round the resin effectively by a heat treatment for spheronization as a post-treatment after manufacturing.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: February 21, 2012
    Assignee: Bridgestone Corporation
    Inventors: Toshiyuki Oosaki, Hideo Ishigouoka, Norihiko Kaga, Kentaro Hanzawa
  • Publication number: 20110228377
    Abstract: The present invention provides an information display panel capable of maintaining an excellent image property even after repeated rewrite, and particles for display media used therefor. The information display panel, in which at least one kind of display media including a charged particle for display media are sealed in a space between substrates at least one of which is transparent, for displaying an image by application of electrostatic force to the display media by means of an electronic field forming means, uses the particle for display media comprised of a mother particle, child particles and fine particles. The child particles, having a molecular structure of three-dimensional crosslinked structure and a particle diameter smaller than that of the mother particle which has no molecular structure of three-dimensional crosslinked structure, are embedded in a surface of the mother particle. It thereby hardens the surface of the mother particle.
    Type: Application
    Filed: August 6, 2008
    Publication date: September 22, 2011
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Norihiko Kaga, Takahisa Shizuku
  • Patent number: 7995266
    Abstract: Particles for display media are constructed as spherical resin fine particles, in which functional groups indicating positively-charging properties are existent on their surfaces, which are obtained by polymerizing monomer by utilizing initiator having functional groups indicating positively-charging properties produced by reacting organic alkyl sulfonates and both terminal ends of azo initiator having cationic functional group including nitrogen-containing heterocycle or nitrogen-containing fatty series, or, are constructed as spherical resin fine particles, in which functional group indicating charging properties or ionic properties are existent on their surfaces, which are obtained by polymerizing monomer by utilizing initiator having functional groups indicating charging properties or ionic properties at its both terminal ends.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: August 9, 2011
    Assignee: Bridgestone Corporation
    Inventors: Masahiro Homma, Norihiko Kaga, Kazuya Murata
  • Publication number: 20100284058
    Abstract: The present invention provides an information display panel capable of achieving good display performance (high contrast and low voltage driving), especially high contrast for a long term from the initial stage by using particles for display media whose charge amount is controllable In an information display panel, in which at least one kind of display media are sealed in a space between two substrates at least one of which is transparent, for displaying an image by electrically moving the display media, a particle for display media combined in a form of a mother particle embedded with first child particles and second child particles, wherein the first child particles and the second child particles have a smaller particle diameter and higher hardness than those of the mother particle and the first child particles and the second child particles have different charging characteristics with each other is used as the display media.
    Type: Application
    Filed: September 17, 2008
    Publication date: November 11, 2010
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Norihiko Kaga, Toshiaki Arai, Akira Okuno