Patents by Inventor Kohichiro Kawate

Kohichiro Kawate 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: 11124646
    Abstract: To provide a heat-dissipating resin composition, and cured product thereof, which can effectively transmit heat generated from a heat-generating part such as a semiconductor element or the like with a high heating value to an object such as a substrate, heat sink, shield can lid, housing, or the like, and reduce defects such as contact failure of a relay or connector, or the like. A heat-dissipating resin composition of an embodiment of the present disclosure includes: component (A): epoxy resin; component (B): curing agent for epoxy resin; component (C): (meth)acrylic oligomer with weight average molecular weight of 10,000 or less; and component (D): heat conductive particles.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: September 21, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Kohichiro Kawate
  • Publication number: 20210193099
    Abstract: An object of the present invention is to provide a vibration absorbing material having an improved followingness for an object to be applied and an improved convenience during use. The vibration absorbing material of the present invention is a pseudoplastic fluid comprising 40 parts by weight of a basic inorganic filler particle, a phosphate ester or a phosphite ester, and a binder.
    Type: Application
    Filed: April 23, 2019
    Publication date: June 24, 2021
    Inventor: Kohichiro Kawate
  • Publication number: 20200181393
    Abstract: To provide a heat-dissipating resin composition, and cured product thereof, which can effectively transmit heat generated from a heat-generating part such as a semiconductor element or the like with a high heating value to an object such as a substrate, heat sink, shield can lid, housing, or the like, and reduce defects such as contact failure of a relay or connector, or the like. A heat-dissipating resin composition of an embodiment of the present disclosure includes: component (A): epoxy resin; component (B): curing agent for epoxy resin; component (C): (meth)acrylic oligomer with weight average molecular weight of 10,000 or less; and component (D): heat conductive particles.
    Type: Application
    Filed: July 24, 2017
    Publication date: June 11, 2020
    Inventor: Kohichiro Kawate
  • Patent number: 9773714
    Abstract: A semiconductor package resin composition of the present invention includes an epoxy resin, a curing agent, inorganic particles, nano-particles surface treated with a silane that contains a photopolymerizable functional group, and a photopolymerization initiator.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: September 26, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kohichiro Kawate, Hiroko Akiyama, Naota Sugiyama, Brant U. Kolb, Eric G. Larson
  • Patent number: 9281255
    Abstract: To provide a solid preapplication underfill material that has excellent workability, has a high degree of freedom for solder bonding processes, and enables the formation of a solder bond with high reliability. (Resolution Means) The underfill composition of the present disclosure contains a hardened epoxy resin and has a viscosity of 1000 Pa·s or more at 30° C. The hardening epoxy resin includes a crystalline epoxy resin at not less than 50 wt % relative to an entire resin composition.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: March 8, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Kohichiro Kawate
  • Publication number: 20160007453
    Abstract: Problem: To prepare a prepreg having high thermal conductivity and a low thermal expansion coefficient. Resolution Means: The prepreg of the present disclosure is composed of a composite layer including an alumina-containing cloth including ceramic fibers and a thermosetting resin composition impregnated into the alumina-containing cloth and having a thermal conductivity coefficient greater than or equal to 1.0 W/(mK).
    Type: Application
    Filed: February 25, 2014
    Publication date: January 7, 2016
    Inventor: Kohichiro Kawate
  • Patent number: 9230873
    Abstract: A semiconductor package resin composition of the present invention includes an epoxy resin, a curing agent, inorganic particles, nano-particles surface treated with a silane that contains a photopolymerizable functional group, and a photopolymerization initiator.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: January 5, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kohichiro Kawate, Hiroko Akiyama, Naota Sugiyama, Brant U. Kolb, Eric G. Larson
  • Publication number: 20150332984
    Abstract: To provide a solid preapplication underfill material that has excellent workability, has a high degree of freedom for solder bonding processes, and enables the formation of a solder bond with high reliability. (Resolution Means) The underfill composition of the present disclosure contains a hardened epoxy resin and has a viscosity of 1000 Pa·s or more at 30° C. The hardening epoxy resin includes a crystalline epoxy resin at not less than 50 wt % relative to an entire resin composition.
    Type: Application
    Filed: October 29, 2013
    Publication date: November 19, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Kohichiro Kawate
  • Publication number: 20150329740
    Abstract: A semiconductor package resin composition of the present invention includes an epoxy resin, a curing agent, inorganic particles, nano-particles surface treated with a silane that contains a photopolymerizable functional group, and a photopolymerization initiator.
    Type: Application
    Filed: July 28, 2015
    Publication date: November 19, 2015
    Inventors: Kohichiro Kawate, Hiroko Akiyama, Naota Sugiyama, Brant U. Kolb, Eric G. Larson
  • Publication number: 20140217622
    Abstract: A semiconductor package resin composition of the present invention includes an epoxy resin, a curing agent, inorganic particles, nano-particles surface treated with a silane that contains a photopolymerizable functional group, and a photopolymerization initiator.
    Type: Application
    Filed: July 9, 2012
    Publication date: August 7, 2014
    Inventors: Kohichiro Kawate, Hiroko Akiyama, Naota Sugiyama, Brant U. Kolb, Eric G. Larson
  • Publication number: 20140096622
    Abstract: To provide a film laminate body for a pressure sensitive fingerprint sensor that can provide an accurate pressure distribution corresponding to the degree of ridges and valleys of a fingerprint, and thereby can clearly recognize the shape of the fingerprint. A film laminate body for a pressure sensitive fingerprint sensor containing a base film with a first surface and a second surface, and a conductive layer formed by a dry film forming process provided on the first surface, and an elastic layer provided on the second surface, which is a side opposite the first surface of the base film, wherein the base film has a thickness of 6 ?m or less, and the elastic layer has a thickness no less than the base film, and has elasticity of 108 Pa or less.
    Type: Application
    Filed: May 22, 2012
    Publication date: April 10, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Kohichiro Kawate
  • Publication number: 20110163569
    Abstract: To provide a terminal mounting structure, the electrical continuation and the joining strength of which are sufficiently high although the structure is simple, further the reliability of which is high even when it is used over a long period of time and to provide a terminal mounting method therefor. A terminal (3) is connected and continued to a conductor (2) such as a heating wire provided on a substrate (1). Terminal (3) includes: a fixing portion (31); elastic portions (32) extending from fixing portion (31); and a substrate contact portion (33) provided in elastic portion (32) so that substrate contact portion (33) can be protruded with respect to substrate (1), and electrically connected to conductor (2). Each fixing portion (31) is made to adhere to substrate (1) by a joining means such as a double-sided adhesive tape (4).
    Type: Application
    Filed: January 23, 2009
    Publication date: July 7, 2011
    Inventors: Miki Yoneyama, Kohichiro Kawate, Kenji Kuwahara
  • Patent number: 7888604
    Abstract: Provided is a method of connecting conductive traces on one substrate to conductive traces on another substrate using an adhesive containing conductive particles and the resulting article.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: February 15, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Kohichiro Kawate, Andrew C. Lottes, James G. Vana, Jr., Barbara L. Birrell, Alexander W. Barr
  • Publication number: 20110000700
    Abstract: A method of connecting circuit boards capable of easily accomplishing the connection maintaining reliability. A method of connection comprising the steps of obtaining a laminated body of a first circuit board, an adhesive sheet and a second circuit board, and accomplishing electric conduction between the first circuit and the second circuit by applying heat and pressure to the laminated body of the first circuit board, the adhesive sheet and the second circuit board, wherein an end of the circuit formed on at least either the first circuit board or the second circuit board is terminated at a position separated away from an end of the substrate, and the adhesive of the adhesive sheet is partly arranged between the end of the substrate of the circuit board and the end of the circuit so as to be adhered to the opposing circuit board.
    Type: Application
    Filed: October 11, 2007
    Publication date: January 6, 2011
    Inventors: Yoshiaki Sato, Kohichiro Kawate, Tomihiro Hara, Noriko Kikuchi
  • Patent number: 7779538
    Abstract: A method for connecting circuit boards, comprising: (i) preparing a first circuit board having connection parts assigned to end parts of a plurality of conductor wirings, and a second circuit board having connection parts assigned to corresponding end parts of a plurality of conductor wirings; (ii) disposing the connection parts of the first circuit board to face the connection parts of the second circuit board with a thermosetting adhesive film between the connection parts of the circuit boards; and (iii) applying heat and pressure to the connection parts and to the thermosetting adhesive film sufficiently high to thoroughly push away the adhesive film so as to establish electrical contact between connection parts of the circuit boards facing each other and to allow for curing of the adhesive; wherein the conductor wirings constituting the connection parts of at least one of the first and second circuit boards contain non-linear wirings.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: August 24, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Yoshiaki Sato, Kohichiro Kawate, James R. White
  • Publication number: 20100206623
    Abstract: To provide a nonconductive adhesive film, for electrically connecting a flexible printed circuit board to a circuit board, which is superior in both storage stability and curability and which suppresses the formation of air bubbles at the time of press bonding. A nonconductive adhesive film substantially comprising a heat-curable epoxy resin, a latent curing agent, and organic elastic fine particles of an average particle size of approximately 1 ?m or less, a film being formed by aggregation of the organic elastic fine particles, is provided.
    Type: Application
    Filed: October 6, 2008
    Publication date: August 19, 2010
    Inventors: Kohichiro Kawate, Hiroko Arita, Hideaki Yasui, Yoshiaki Sato
  • Publication number: 20100197368
    Abstract: To provide a connecting means that can facilitate electrical connection between the circuit boards mounted in an electronic apparatus and can attain the miniaturization of connecting parts. A cable harness body comprising a plurality of cables for electrically connecting circuit boards mounted in an electronic apparatus and the terminal members disposed on both ends of said cables, wherein at least one of said terminal members is comprised of a flexible circuit board and an adhesive layer on the surface of the electric connecting part of said flexible circuit board.
    Type: Application
    Filed: April 4, 2006
    Publication date: August 5, 2010
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Yoshihisa Kawate, Takuro Miya, Kohichiro Kawate
  • Publication number: 20090321015
    Abstract: To provide an adhesive composition which can exhibit high adhesion to a circuit board and also has ability capable of releasing the connection to the circuit board connected and reconnecting the circuit board (repairing properties). An adhesive composition comprising: (i) one or more aromatic-group-containing polyhydroxy ether resins, (ii) a compound having an alkoxysilyl group and an imidazole group in the molecule, and (iii) organic particles, wherein the content of the organic particles is 50% by weight or more based on the weight of the adhesive composition.
    Type: Application
    Filed: June 18, 2007
    Publication date: December 31, 2009
    Inventors: Kohichiro Kawate, Hitoshi Yamaguchi, Noriko Kikuchi, Tomihiro Hara, Yoshiyuki Ohkura
  • Publication number: 20090127692
    Abstract: A method of electrically connecting a bump array package to a wiring board, comprising the steps of: arranging a thermofluidizing, thermosetting adhesive film on a surface of a bump array package having metal bumps; creating a bump array package having a flat surface comprising said metal bumps and said adhesive film, and connecting the bump array package to the wiring board by arranging the flat surface comprising said metal bumps and said adhesive film on the wiring board, and heating the adhesive film at a temperature high enough for finishing the setting of said adhesive film and higher than the melting temperature of said solder.
    Type: Application
    Filed: October 14, 2005
    Publication date: May 21, 2009
    Inventors: Kohichiro Kawate, Yoshiaki Sato, Miwa Monma, Yoshihisa Kawate
  • Publication number: 20080283280
    Abstract: To provide a method for connecting printed circuit boards with high connection reliability, while avoiding the problem of shorting even with a fine pitch. A method for connecting printed circuit boards (PCB) containing metal wiring, or connecting a printed circuit board (PCB) containing metal wiring with a metal lead wire or a metal contact, which method includes a step of thermocompression bonding of an adhesive film with connectors, the adhesive film being composed of an adhesive composition comprising a thermoplastic resin and organic particles, wherein the viscosity decreases as the applied thermocompression force increases at a temperature of 100-250° C.
    Type: Application
    Filed: November 9, 2006
    Publication date: November 20, 2008
    Inventors: Kohichiro Kawate, Yoshihisa Kawate