Patents by Inventor Nobuyasu Tamura

Nobuyasu Tamura 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: 20030094760
    Abstract: An object of the present invention is to provide a game machine which is capable of successfully combining a game having the realism of a mechanical reel and a display having colorful and rich expressions, which can be set up in an narrow area, and which yields high profitability.
    Type: Application
    Filed: April 19, 2002
    Publication date: May 22, 2003
    Inventors: Satoshi Motegi, Masatoshi Satoh, Nobuyasu Tamura, Kosaku Noda, Misao Yamanaka, Masanori Suganuma, Hayato Mizue
  • Patent number: 6564022
    Abstract: An image forming apparatus includes an image carrier on which a latent image is formed; and a developing roller provided in the vicinity of a surface of the image carrier for conveying a two-component developer to develop the latent image, wherein the following conditional inequality (1) is satisfied, 1<(Vs/Vp)≦(Dsd/Dws)×0.129 . . . (1) where Vs/Vp represents a relative velocity of the developing roller to the image carrier, Dsd (&mgr;m) represents a distance between the surface of the image carrier and a surface of the developing roller, and Dws (mg/cm2) represents an amount of the developer which has been held and conveyed by the developing roller.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: May 13, 2003
    Assignee: Konica Corporation
    Inventors: Nobuyasu Tamura, Yutaka Miyasaka, Kimio Nishizawa
  • Publication number: 20020041768
    Abstract: An image forming apparatus comprises: an image carrier on which a latent image is formed; and a developing roller provided in the vicinity of a surface of the image carrier for conveying a two-component developer to develop the latent image, wherein the following conditional inequality (1) is satisfied, 1<(Vs/Vp)≦(Dsd/Dws)×0.129 . . . . (1) where Vs/Vp represents a relative velocity of the developing roller to the image carrier, Dsd (&mgr;m) represents a distance between the surface of the image carrier and a surface of the developing roller, and Dws (mg/cm2) represents an amount of the developer which has been held and conveyed by the developing roller.
    Type: Application
    Filed: August 10, 2001
    Publication date: April 11, 2002
    Applicant: Konica Corporation
    Inventors: Nobuyasu Tamura, Yutaka Miyasaka, Kimio Nishizawa
  • Patent number: 4873373
    Abstract: Disclosed is a process for preparing 3-phenoxybenzyl 2-(4-alkoxyphenyl)-2-methylpropyl ethers represented by the following formula (I): ##STR1## wherein R stands for a lower alkyl group, and X.sub.1 and X.sub.2 stand for a hydrogen atom or fluorine atom,which comprises subjecting a 3-phenoxybenzyl 2-(4-alkoxy-3-halogenophenyl)-2-methylpropyl ether or 3-phenoxybenzyl-2-(4-alkoxy-3,5-dihalogenophenyl)-2-methylpropyl ether represented by the following formula (II): ##STR2## wherein R stands for a lower alkyl group, X.sub.1 and X.sub.2 stand for a hydrogen atom or fluorine atom, and Y.sub.1 and Y.sub.2 stand for a hydrogen atom, chlorine atom, bromine atom or iodine atom, with the proviso that at least one of Y.sub.1 and Y.sub.
    Type: Grant
    Filed: July 16, 1986
    Date of Patent: October 10, 1989
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Mitsumasa Umemoto, Tamotsu Asano, Hironobu Horie, Akinobu Takagi, Nobuyasu Tamura, Takeshi Nishida