Patents by Inventor Keitaro Seto

Keitaro Seto 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).

  • Publication number: 20150299509
    Abstract: Embodiments in accordance with the present invention relate generally to polymer compositions useful in the forming of microelectronic assemblies, and more specifically to such compositions that encompass a thermally decomposable polymer and that provide both tackiness and solder fluxing.
    Type: Application
    Filed: December 12, 2013
    Publication date: October 22, 2015
    Applicant: PROMERUS, LLC
    Inventors: W. C. PETER TSANG, ANDREW BELL, HONGSHI ZHEN, KEITARO SETO
  • Publication number: 20140322647
    Abstract: The present invention relates to photosensitive compositions containing polynorbornene (PNB) polymers and certain additives that are useful for forming microelectronic and/or optoelectronic devices and assemblies thereof, and more specifically to compositions encompassing PNBs and certain hindered phenols as additives which are resistant to thermo-oxidative chain degradation.
    Type: Application
    Filed: April 25, 2014
    Publication date: October 30, 2014
    Applicants: SUMITOMO BAKELITE CO., LTD, PROMERUS, LLC
    Inventors: BRIAN KNAPP, CHERYL BURNS, EDMUND ELCE, KEITARO SETO, HIROMICHI SUGIYAMA, MAKOTO HORII, KAZUYOSHI FUJITA
  • Patent number: 8765894
    Abstract: Embodiments of the present disclosure encompass vinyl addition and ROMP polymers having at least one type of repeating unit that encompasses a comprise N+(CH3)3OH? moiety. Other embodiments in accordance with the disclosure include alkali anion-exchange membranes (AAEMs) made from one of such polymers, anion fuel cells (AFCs) that encompass such AAEMs and components of such AFCs, other than the AAEM, that encompass one of such polymers.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: July 1, 2014
    Assignee: Promerus, LLC
    Inventors: Andrew Bell, Edmund Elce, Keitaro Seto
  • Patent number: 8765893
    Abstract: Embodiments of the present disclosure encompass vinyl addition and ROMP polymers having at least one type of repeating unit that encompasses a comprise N+(CH3)3OH? moiety. Other embodiments in accordance with the disclosure include alkali anion-exchange membranes (AAEMs) made from one of such polymers, anion fuel cells (AFCs) that encompass such AAEMs and components of such AFCs, other than the AAEM, that encompass one of such polymers.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: July 1, 2014
    Assignee: Promerus, LLC
    Inventors: Andrew Bell, Edmund Elce, Keitaro Seto
  • Patent number: 8729215
    Abstract: Embodiments according to the present invention relate to sacrificial polymer compositions that include polycarbonate polymers having repeat units derived from stereospecific polycyclic 2,3-diol monomers. The sacrificial polymer compositions also include an acid generator that is selected from at least one photoacid generator and/or at least one thermal acid generator. In addition, embodiments according to the present invention relate to a method of forming a structure that includes a three-dimensional space interposed between a substrate and an overcoat layer, and a method of temporarily bonding first and second substrates together, which make use of the polycarbonate polymers.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: May 20, 2014
    Assignee: Promerus, LLC
    Inventors: Andrew Bell, Robert A. Shick, Leah Langsdorf, Keitaro Seto, W. C. Peter Tsang
  • Publication number: 20140024799
    Abstract: Embodiments according to the present invention relate to sacrificial polymer compositions that include polycarbonate polymers having repeat units derived from stereospecific polycyclic 2,3-diol monomers. The sacrificial polymer compositions also include an acid generator that is selected from at least one photoacid generator and/or at least one thermal acid generator. In addition, embodiments according to the present invention relate to a method of forming a structure that includes a three-dimensional space interposed between a substrate and an overcoat layer, and a method of temporarily bonding first and second substrates together, which make use of the polycarbonate polymers.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 23, 2014
    Applicant: Promerus, LLC
    Inventors: Andrew Bell, Robert A. Shick, Leah Langsdorf, Keitaro Seto, W. C. Peter Tsang
  • Publication number: 20130323640
    Abstract: Embodiments in accordance with the present invention provide for norbornane-type ballast materials, norbornane-type photoactive compounds derived from such ballast materials and alkali-soluble positive-tone polymer compositions that encompass such norbornane-type photoactive compounds and one of a PBO or PNB resin.
    Type: Application
    Filed: August 9, 2013
    Publication date: December 5, 2013
    Applicants: Sumitomo Bakelite Co., Ltd., Promerus, LLC
    Inventors: Andrew Bell, Keitaro Seto, Hiroaki Makabe
  • Patent number: 8575297
    Abstract: Embodiments according to the present invention relate to sacrificial polymer compositions that include polycarbonate polymers having repeat units derived from stereospecific polycyclic 2,3-diol monomers. The sacrificial polymer compositions also include an acid generator that is selected from at least one photoacid generator and/or at least one thermal acid generator. In addition, embodiments according to the present invention relate to a method of forming a structure that includes a three-dimensional space interposed between a substrate and an overcoat layer, and a method of temporarily bonding first and second substrates together, which make use of the polycarbonate polymers.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: November 5, 2013
    Assignee: Promerus, LCC
    Inventors: Andrew Bell, Robert A. Shick, Leah Langsdorf, Keitaro Seto, W. C. Peter Tsang
  • Patent number: 8530133
    Abstract: Embodiments in accordance with the present invention provide for norbornane-type ballast materials, norbornane-type photoactive compounds derived from such ballast materials and alkali-soluble positive-tone polymer compositions that encompass such norbornane-type photoactive compounds and one of a PBO or PNB resin.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: September 10, 2013
    Assignee: Promerus, LLC
    Inventors: Andrew Bell, Keitaro Seto, Hiroaki Makabe, Edmund Elce
  • Patent number: 8404792
    Abstract: Described is a cyclobutene polymer comprising: monomeric units of cyclobutene, said cyclobutene having at least one fused ring system substituted thereon, said polymer comprising not more than 10 mol percent ring-opened units of said cyclobutene; and said polymer having a molecular weight of at least 1,000; said polymer optionally copolymerized with a comonomer to form a copolymer therewith. Compositions thereof and methods of making the same are also described.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: March 26, 2013
    Assignee: North Carolina Sate University
    Inventors: Bruce M. Novak, Keitaro Seto
  • Publication number: 20120135352
    Abstract: Embodiments in accordance with the present invention provide for norbornane-type ballast materials, norbornane-type photoactive compounds derived from such ballast materials and alkali-soluble positive-tone polymer compositions that encompass such norbornane-type photoactive compounds and one of a PBO or PNB resin.
    Type: Application
    Filed: September 28, 2011
    Publication date: May 31, 2012
    Applicant: Promerus LLC
    Inventors: Andrew Bell, Keitaro Seto, Hiroaki Makabe, Edmund Elce
  • Publication number: 20120031556
    Abstract: Embodiments according to the present invention relate to sacrificial polymer compositions that include polycarbonate polymers having repeat units derived from stereospecific polycyclic 2,3-diol monomers. The sacrificial polymer compositions also include an acid generator that is selected from at least one photoacid generator and/or at least one thermal acid generator. In addition, embodiments according to the present invention relate to a method of forming a structure that includes a three-dimensional space interposed between a substrate and an overcoat layer, and a method of temporarily bonding first and second substrates together, which make use of the polycarbonate polymers.
    Type: Application
    Filed: August 5, 2011
    Publication date: February 9, 2012
    Applicant: Promerus LLC
    Inventors: Andrew Bell, Robert A. Shick, Leah Langsdorf, Keitaro Seto, W. C. Peter Tsang
  • Publication number: 20110313120
    Abstract: Described is a cyclobutene polymer comprising: monomeric units of cyclobutene, said cyclobutene having at least one fused ring system substituted thereon, said polymer comprising not more than 10 mol percent ring-opened units of said cyclobutene; and said polymer having a molecular weight of at least 1,000; said polymer optionally copolymerized with a comonomer to form a copolymer therewith. Compositions thereof and methods of making the same are also described.
    Type: Application
    Filed: August 30, 2011
    Publication date: December 22, 2011
    Inventors: Bruce M. Novak, Keitaro Seto
  • Publication number: 20110244368
    Abstract: Embodiments of the present disclosure encompass vinyl addition and ROMP polymers having at least one type of repeating unit that encompasses a comprise N+(CH3)3OH? moiety. Other embodiments in accordance with the disclosure include alkali anion-exchange membranes (AAEMs) made from one of such polymers, anion fuel cells (AFCs) that encompass such AAEMs and components of such AFCs, other than the AAEM, that encompass one of such polymers.
    Type: Application
    Filed: June 10, 2011
    Publication date: October 6, 2011
    Applicant: Promerus LLC
    Inventors: Andrew Bell, Edmund Elce, Keitaro Seto
  • Patent number: 8030424
    Abstract: Described is a cyclobutene polymer comprising: monomeric units of cyclobutene, said cyclobutene having at least one fused ring system substituted thereon, said polymer comprising not more than 10 mol percent ring-opened units of said cyclobutene; and said polymer having a molecular weight of at least 1,000; said polymer optionally copolymerized with a comonomer to form a copolymer therewith. Compositions thereof and methods of making the same are also described.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: October 4, 2011
    Assignee: North Carolina State University
    Inventors: Bruce M. Novak, Keitaro Seto
  • Publication number: 20110143260
    Abstract: Embodiments of the present disclosure encompass vinyl addition and ROMP polymers having at least one type of repeating unit that encompasses a comprise N+(CH3)3OH? moiety. Other embodiments in accordance with the disclosure include alkali anion-exchange membranes (AAEMs) made from one of such polymers, anion fuel cells (AFCs) that encompass such AAEMs and components of such AFCs, other than the AAEM, that encompass one of such polymers.
    Type: Application
    Filed: December 13, 2010
    Publication date: June 16, 2011
    Applicant: Promerus LLC
    Inventors: Andrew Bell, Edmund Elce, Keitaro Seto
  • Publication number: 20110003954
    Abstract: Described is a cyclobutene polymer comprising: monomeric units of cyclobutene, said cyclobutene having at least one fused ring system substituted thereon, said polymer comprising not more than 10 mol percent ring-opened units of said cyclobutene; and said polymer having a molecular weight of at least 1,000; said polymer optionally copolymerized with a comonomer to form a copolymer therewith. Compositions thereof and methods of making the same are also described.
    Type: Application
    Filed: August 16, 2007
    Publication date: January 6, 2011
    Inventors: Bruce M. Novak, Keitaro Seto