Patents by Inventor Yukio Tominaga

Yukio Tominaga 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: 7397118
    Abstract: A chip-type electronic component includes a ceramic chip body, an external electrode formed on the chip body, a conductive elastic resin film made of a mixture of metal powder and elastic resin and formed to cover the external electrode, and a metal plating film. The metal powder is exposed at an obverse surface of the conductive elastic resin film. The metal plating film is formed on the obverse surface of the conductive elastic resin film at which the metal powder is exposed.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: July 8, 2008
    Assignee: Rohm Co., Ltd.
    Inventor: Yukio Tominaga
  • Patent number: 7362559
    Abstract: A chip-type electronic component includes a ceramic chip body incorporating an element, an external electrode formed on a side surface of the chip body, a conductive elastic resin film which is larger in width than the external electrode and formed to cover the external electrode and extend onto part of a mount surface of the chip body, and a metal plating film for soldering formed on the conductive elastic resin film.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: April 22, 2008
    Assignee: Rohm Co., Ltd.
    Inventor: Yukio Tominaga
  • Patent number: 7351676
    Abstract: A dielectric ceramic composition of the present invention includes 100 parts by mole of BaTiO3, x1 parts by mole of MnO, x2 parts by mole of Cr2O3, x3 parts by mole of Y2O3 and/or Ho2O3, x4 parts by mole of oxide selected from the group consisting of BaO, CaO and SrO, and x5 parts by mole of SiO2 and/or GeO2, where 0.5?x1?4.5, 0.05?x2?1.0, x1+x2?4.55, 0.25?x3?1.5, 0.5 ?x4?6 and 0.5?x5?6. A multilayer ceramic capacitor of the present invention includes a laminated structure of a ceramic dielectric made of such a composition and an electrode made of Ni or Ni alloy.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: April 1, 2008
    Assignee: Rohm Co., Ltd.
    Inventors: Akihiro Koga, Yukio Tominaga, Tetsuhiro Takahashi
  • Publication number: 20060256495
    Abstract: A chip-type electronic component includes a ceramic chip body, an external electrode formed on the chip body, a conductive elastic resin film made of a mixture of metal powder and elastic resin and formed to cover the external electrode, and a metal plating film. The metal powder is exposed at an obverse surface of the conductive elastic resin film. The metal plating film is formed on the obverse surface of the conductive elastic resin film at which the metal powder is exposed.
    Type: Application
    Filed: April 13, 2006
    Publication date: November 16, 2006
    Applicant: ROHM CO., LTD.
    Inventor: Yukio Tominaga
  • Publication number: 20060240973
    Abstract: A dielectric ceramic composition of the present invention includes 100 parts by mole of BaTiO3, x1 parts by mole of MnO, x2 parts by mole of Cr2O3, x3 parts by mole of Y2O3 and/or Ho2O3, x4 parts by mole of oxide selected from the group consisting of BaO, CaO and SrO, and x5 parts by mole of SiO2 and/or GeO2, where 0.5?x1?4.5, 0.05?x2?1.0, x1+x2?4.55, 0.25?x3?1.5, 0.5 ?x4?6 and 0.5?x5?6. A multilayer ceramic capacitor of the present invention includes a laminated structure of a ceramic dielectric made of such a composition and an electrode made of Ni or Ni alloy.
    Type: Application
    Filed: August 11, 2004
    Publication date: October 26, 2006
    Inventors: Akihiro Koga, Yukio Tominaga, Tetsuhiro Takahashi
  • Publication number: 20060238948
    Abstract: A chip-type electronic component includes a ceramic chip body incorporating an element, an external electrode formed on a side surface of the chip body, a conductive elastic resin film which is larger in width than the external electrode and formed to cover the external electrode and extend onto part of a mount surface of the chip body, and a metal plating film for soldering formed on the conductive elastic resin film.
    Type: Application
    Filed: April 11, 2006
    Publication date: October 26, 2006
    Applicant: ROHM CO., LTD.
    Inventor: Yukio Tominaga
  • Patent number: 5990106
    Abstract: This invention relates to bicyclic amino group-substituted pyridonecarboxylic acid derivatives of the general formulaA--Priesters thereof and salts thereof, wherein: Pri is a pyridonecarboxylic acid residue, and A is a bicyclic amino group represented by the following formula and joined to the 7-position of the pyridonecarboxylic acid or a position equivalent to the 7-position thereof. ##STR1## wherein R.sub.1 and R.sub.2 may be the same or different and each represents a hydrogen atom, a lower alkyl group or an amino-protecting group; R.sub.3 and R.sub.4 may be the same or different and each represents a hydrogen atom, a halogen atom, a cyano group, a hydroxyl group, an oxo group, a lower alkoxy group or a lower alkyl group; and n is an integer of 0 or 1.The above-described pyridonecarboxylic acid derivatives, esters thereof and salts thereof are useful as antibacterial agents.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: November 23, 1999
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Masato Sakamoto, Katsumi Chiba, Yukio Tominaga, Akira Minami
  • Patent number: 5866657
    Abstract: In order to provide a general-purpose aqueous primer composition requiring no organic solvent and capable of improving adhesive strength and durability while ensuring an adequate application life required for the work of primer coating process, a primer composition according to the present invention contains (a) a modified polyisocyanate obtained by reaction of polyisocyanate; an emulsifying agent having an active hydrogen group reactable to an isocyanate group; and a silane coupling agent having an active hydrogen group reactable to an isocyanate group and (b) a core shell emulsion having a core layer of a rubbery polymer and a shell layer of a glassy polymer and having an active hydrogen group reactable to an isocyanate group in the core layer and/or the shell layer.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: February 2, 1999
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Yukio Tominaga, Atsuko Tsuchida, Hiroyuki Shiraki
  • Patent number: 5424434
    Abstract: 3-Oxadiazolyl-5,6,7,8-tetrahydro-1,6-naphthyridine derivative of the formula (I): ##STR1## wherein Het is an oxadiazole ring, R.sub.1 is hydrogen atom, an acyl group, a lower alkyl group or a group of the formula: --CH.sub.2 R.sub.1 ' (in which R.sub.1 ' is a cyclo-lower alkyl group, a lower alkenyl group, a lower alkynyl group, benzyl group, aryl group or a heteroaromatic group), R.sub.2 is a lower alkyl group, a cyclo-lower alkyl group, a lower alkenyl group, a lower alkynyl group, aryl group, a heteroaromatic group, a halogeno-lower alkyl group, a lower alkoxy-lower alkyl group, a lower alkoxy group, a lower alkenyloxy group, a phenoxy group or a lower alkylthio group, or a pharmaceutically acceptable acid addition salt thereof, which are useful as benzodiazepine receptor agonist.
    Type: Grant
    Filed: June 16, 1994
    Date of Patent: June 13, 1995
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Kazunori Ohno, Osamu Odai, Yukio Tominaga, Kiyoshi Furukawa, Makoto Oka
  • Patent number: 5424433
    Abstract: 3-Oxadiazolyl-5,6,7,8-tetrahydro-1,6-naphthyridine derivative of the formula (I): ##STR1## wherein Het is an oxadiazole ring, R.sub.1 is hydrogen atom, an acyl group, a lower alkyl group or a group of the formula: --CH.sub.2 R.sub.1' (in which R.sub.1' is a cyclo-lower alkyl group, a lower alkenyl group, a lower alkynyl group, benzyl group, aryl group or a heteroaromatic group), R.sub.2 is a lower alkyl group, a cyclo-lower alkyl group, a lower alkenyl group, a lower alkynyl group, aryl group, a heteroaromatic group, a halogeno-lower alkyl group, a lower alkoxy-lower alkyl group, a lower alkoxy group, a lower alkenyloxy group, a phenoxy group or a lower alkylthio group, or a pharmaceutically acceptable acid addition salt thereof, which are useful as benzodiazepine receptor agonist.
    Type: Grant
    Filed: June 16, 1994
    Date of Patent: June 13, 1995
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Kazunori Ohno, Osamu Odai, Yukio Tominaga, Kiyoshi Furukawa, Makoto Oka
  • Patent number: 5367078
    Abstract: 3-Oxadiazolyl-5,6,7,8-tetrahydro-1,6-naphthyridine derivative of the formula (I): ##STR1## wherein Het is an oxadiazole ring, R.sub.1 is hydrogen atom, an acyl group, a lower alkyl group or a group of the formula: --CH.sub.2 R.sub.1 ' (in which R.sub.1 ' is a cyclo-lower alkyl group, a lower alkenyl group, a lower alkynyl group, benzyl group, aryl group or a heteroaromatic groups), R.sub.2 is a lower alkyl group, a cyclo-lower alkyl group, a lower alkenyl group, a lower alkynyl group, aryl group, a heteroaromatic group, a halogeno-lower alkyl group, a lower alkoxy-lower alkyl group, a lower alkoxy group, a lower alkenyloxy group, a phenoxy group, or a lower alkylthio group, or a pharmaceutically acceptable acid addition salt thereof, which are useful as benzodiazedine receptor agonist.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: November 22, 1994
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Kazunori Ohno, Osamu Odai, Yukio Tominaga, Kiyoshi Furukawa, Makoto Oka