Patents by Inventor Koichi Yomogida

Koichi Yomogida 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: 9914838
    Abstract: A composition containing a cationic polymer obtained from a reaction product of nitrogen-containing heterocyclic compound and epihalohydrin; and a phosphorus compound. The composition can be used as a surface treatment for gold or gold alloy. The composition can seal pinholes on the surface of the gold or gold alloy.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: March 13, 2018
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Yoko Mizuno, Makoto Kondo, Koichi Yomogida, Toshiyuki Morinaga
  • Patent number: 9790606
    Abstract: To provide a surface treatment solution and treatment method for gold or gold alloy plating that effectively suppresses corrosion of underlying metal or substrate metal from pinholes that develop on the gold or gold alloy plating film. [Solution] A surface treatment solution containing a disulfide compound is brought into contact with a gold or gold alloy plating film. A compound represented by the following formula (2) is preferred as the disulfide compound. X1O3S—R3—S—S—R4—SO3X2??(2) in the formula, R3 and R4 independently represent a linear or branched alkylene group having from 1 to 10 carbon atoms, cyclic alkylene group having from 3 to 10 carbon atoms, or phenylene group, R3 and R4 independently may be substituted by one or more substituents selected from an alkyl group, halogen atom, hydroxyl group, or alkoxy group, and X1 and X2 represent monovalent cations.
    Type: Grant
    Filed: November 30, 2014
    Date of Patent: October 17, 2017
    Assignee: Rohm and Haas Electronics Materials LLC
    Inventor: Koichi Yomogida
  • Publication number: 20170002211
    Abstract: A composition containing a cationic polymer obtained from a reaction product of nitrogen-containing heterocyclic compound and epihalohydrin; and a phosphorus compound. The composition can be used as a surface treatment for gold or gold alloy. The composition can seal pinholes on the surface of the gold or gold alloy.
    Type: Application
    Filed: May 18, 2016
    Publication date: January 5, 2017
    Inventors: Yoko Mizuno, Makoto Kondo, Koichi Yomogida, Toshiyuki Morinaga
  • Patent number: 9212429
    Abstract: A gold plating bath and a plating method is disclosed where gold cyanide or salts thereof provide the source of gold, a cobalt compound, and a reaction product of compound containing at least a nitrogen-containing heterocyclic compound and an epihalohydrin. The gold plating bath has high deposition selectivity.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: December 15, 2015
    Inventors: Koichi Yomogida, Makoto Kondo
  • Publication number: 20150152565
    Abstract: To provide a surface treatment solution and treatment method for gold or gold alloy plating that effectively suppresses corrosion of underlying metal or substrate metal from pinholes that develop on the gold or gold alloy plating film. [Solution] A surface treatment solution containing a disulfide compound is brought into contact with a gold or gold alloy plating film. A compound represented by the following formula (2) is preferred as the disulfide compound. X1O3S—R3—S—S—R4—SO3X2 ??(2) in the formula, R3 and R4 independently represent a linear or branched alkylene group having from 1 to 10 carbon atoms, cyclic alkylene group having from 3 to 10 carbon atoms, or phenylene group, R3 and R4 independently may be substituted by one or more substituents selected from an alkyl group, halogen atom, hydroxyl group, or alkoxy group, and X1 and X2 represent monovalent cations.
    Type: Application
    Filed: November 30, 2014
    Publication date: June 4, 2015
    Inventor: Koichi YOMOGIDA
  • Publication number: 20120132533
    Abstract: A gold plating bath and a plating method is disclosed where gold cyanide or salts thereof provide the source of gold, a cobalt compound, and a reaction product of compound containing at least a nitrogen-containing heterocyclic compound and an epihalohydrin. The gold plating bath has high deposition selectivity.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 31, 2012
    Applicant: Rohm and Haas Electronic Materials LLC
    Inventors: Koichi YOMOGIDA, Makoto Kondo
  • Patent number: 7534289
    Abstract: An electroless gold plating solution that can form a gold plating film with excellent adhesion and that does not cause corrosion of a base metal film such as nickel, copper, cobalt, or palladium, or the like.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: May 19, 2009
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventor: Koichi Yomogida
  • Patent number: 7374652
    Abstract: Copper plating baths containing a leveling agent that is a reaction product of a compound including a heteroatom chosen from nitrogen, sulfur and a mixture of nitrogen and sulfur, with a polyepoxide compound containing an ether linkage that deposit copper on the surface of an electronic device and in apertures on such substrate are provided. Such plating baths deposit a copper layer on the substrate surface that is substantially planar across a range of electrolyte concentrations. Methods of depositing copper layers using such copper plating baths are also disclosed.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: May 20, 2008
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Shinjiro Hayashi, Hideki Tsuchida, Masaru Kusaka, Koichi Yomogida
  • Publication number: 20070007143
    Abstract: Copper plating baths containing a leveling agent that is a reaction product of a compound including a heteroatom chosen from nitrogen, sulfur and a mixture of nitrogen and sulfur, with a polyepoxide compound containing an ether linkage that deposit copper on the surface of an electronic device and in apertures on such substrate are provided. Such plating baths deposit a copper layer on the substrate surface that is substantially planar across a range of electrolyte concentrations. Methods of depositing copper layers using such copper plating baths are also disclosed.
    Type: Application
    Filed: July 7, 2006
    Publication date: January 11, 2007
    Applicant: Rohm and Haas Electronic Materials LLC
    Inventors: Shinjiro Hayashi, Hideki Tsuchida, Masaru Kusaka, Koichi Yomogida
  • Publication number: 20050164020
    Abstract: This invention offers a composite material with improved binding strength and a method for its manufacture. In particular, the invention offers a composite material having metal at the surface of a resin base, obtained by subjecting the surface of a resin base to an ion exchange group introduction treatment, treating the surface of said resin base with liquid containing metal ions, and then reducing said metal ions, where the aforementioned composite material resin is characterized in that the resin base and metal of said composite material are hot-pressed. Said composite material has superior binding strength between resin base and metal relative to composite materials obtained by electroless plating which have inferior binding strength between resin base and metal. Moreover, said composite material is readily manufactured because hot-press methods can be used in the formation of said composite material.
    Type: Application
    Filed: January 24, 2005
    Publication date: July 28, 2005
    Applicant: Shipley Company, L.L.C.
    Inventors: Masaru Seita, Hideki Tsuchida, Masaaki Imanari, Masaru Kusaka, Koichi Yomogida, Hidemi Nawafune, Syozo Mizumoto, Shingo Ikeda
  • Patent number: 6899781
    Abstract: This invention offers a method for forming a resin composite material, containing the steps of: (1) treating the surface of a carrier resin to treatment introduce ion exchange groups, (2) introducing metal ions to treat the carrier resin surface by treating the surface of said carrier resin with a solution containing metal ions, (3) converting said metal ions to a component containing a metal element, (4) forming a metal foil on top of said component containing a metal element, and (5) transferring said metal foil to a resin substrate by heating said metal foil. This method provides a carrier resin substrate having a metal foil of any desired thickness laminated or cast onto it. In this way a carrier resin containing a metal foil, particularly a copper foil, having a thickness, such as 8 ?m or less, can be prepared that is otherwise difficult to prepare using conventional methods.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: May 31, 2005
    Assignee: Shipley Company, L.L.C.
    Inventors: Masaru Seita, Hideki Tsuchida, Masaaki Imanari, Koichi Yomogida, Hidemi Nawafune
  • Publication number: 20040170846
    Abstract: A resin composite material which comprises a resin base and a metal-element-containing ingredient disposed on the surface of the base and is obtained by a wet process, characterized by having no catalyst layers. The resin composite material is superior in adhesion between the resin base and the metal-element-containing ingredient and in evenness of the thickness of the metal-element-containing coating film to the resin composite materials obtained by conventional wet processes. The formation of the resin composite material necessitates neither etching nor electroless plating unlike the conventional wet processes. Consequently, the resin composite material can be easily produced without causing pollution attributable to these treatments, such as working atmosphere worsening and the pollution of the global environment.
    Type: Application
    Filed: April 3, 2004
    Publication date: September 2, 2004
    Inventors: Masaru Seita, Hideki Tsuchida, Masaaki Imanari, Hidemi Nawafune, Koichi Yomogida
  • Publication number: 20040101665
    Abstract: A composite material having metal at the surface of a resin base is obtained by subjecting the surface of a resin base to ion exchange group introduction treatment, treating the surface of said resin base with liquid containing metal ions to introduce metal ions, introducing photocatalyst into the resin base containing said introduced metal ions, and then irradiating the resin base with electromagnetic radiation after said photocatalyst introduction. Said composite material is useful for composite materials that require fine metal patterns.
    Type: Application
    Filed: August 26, 2003
    Publication date: May 27, 2004
    Applicant: Shipley Company, L.L.C.
    Inventors: Masaru Seita, Hideki Tsuchida, Masaaki Imanari, Hidemi Nawafune, Koichi Yomogida
  • Publication number: 20040072015
    Abstract: This invention offers a composite material with improved binding strength and a method for its manufacture. In particular, the invention offers a composite material having metal at the surface of a resin base, obtained by subjecting the surface of a resin base to an ion exchange group introduction treatment, treating the surface of said resin base with liquid containing metal ions, and then reducing said metal ions, where the aforementioned composite material resin is characterized in that the resin base and metal of said composite material are hot-pressed. Said composite material has superior binding strength between resin base and metal relative to composite materials obtained by electroless plating which have inferior binding strength between resin base and metal. Moreover, said composite material is readily manufactured because hot-press methods can be used in the formation of said composite material.
    Type: Application
    Filed: December 27, 2001
    Publication date: April 15, 2004
    Applicant: Shipley Company, L.L.C.
    Inventors: Masaru Seita, Hideki Tsuchida, Masaaki Imanari, Masaru Kusaka, Koichi Yomogida, Hidemi Nawafune, Syozo Mizumoto, Shingo Ikeda
  • Publication number: 20040001957
    Abstract: This invention offers a method for forming a resin composite material, containing the steps of: (1) treating the surface of a carrier resin to treatment introduce ion exchange groups, (2) introducing metal ions to treat the carrier resin surface by treating the surface of said carrier resin with a solution containing metal ions, (3) converting said metal ions to a component containing a metal element, (4) forming a metal foil on top of said component containing a metal element, and (5) transferring said metal foil to a resin substrate by heating said metal foil. This method provides a carrier resin substrate having a metal foil of any desired thickness laminated or cast onto it. In this way a carrier resin containing a metal foil, particularly a copper foil, having a thickness, such as 8 &mgr;m or less, can be prepared that is otherwise difficult to prepare using conventional methods.
    Type: Application
    Filed: November 1, 2002
    Publication date: January 1, 2004
    Applicant: Shipley Company, L.L.C.
    Inventors: Masaru Seita, Hideki Tsuchida, Masaaki Imanari, Koichi Yomogida, Hidemi Nawafune
  • Publication number: 20030003307
    Abstract: The present invention offers a non-charging resin composite material and method for manufacturing said resin composite material. In particular, a non-charging resin composite material can be manufactured by using liquid containing metal ions to treat the surface of a resin base treated with ion-exchange group introduction agent, thereby introducing metal ions. By then converting said metal ions, a component containing metal element is introduced at the surface of the resin base in such a small amount that charging of the resin base can be prevented, without increasing the low conductivity intrinsic to the resin base to above a certain level, which has been difficult in the past. With said non-charging resin composite material, damage due to the adhesion of dirt or dust on the base is prevented, as is damage to the base caused by static electricity resulting from charging.
    Type: Application
    Filed: December 6, 2001
    Publication date: January 2, 2003
    Applicant: Shipley Company, L.L.C.
    Inventors: Hideki Tsuchida, Masaaki Imanari, Koichi Yomogida, Hidemi Nawafune