Patents by Inventor Katsuya Miki

Katsuya Miki 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: 20190297413
    Abstract: A bass reflex port including: a tubular body portion; and a surface forming portion which is board-like, and continuous to an inner wall of the tubular body portion and which has a surface extending radially outwardly from an opening end of the tubular body portion disposed in a housing of a speaker, wherein the surface forming portion extends linearly in a direction away from a tube axis of the tubular body portion in a cross section parallel to the tube axis.
    Type: Application
    Filed: December 28, 2018
    Publication date: September 26, 2019
    Inventors: Katsuya UCHIDA, Akira MIKI, Hirofumi ONITSUKA
  • Publication number: 20190141437
    Abstract: An acoustic device includes an enclosure and a bass reflex port that includes a tube body. An inner wall surface of the tube body includes multiple regions in which viscous resistances in a tube axis direction of moving air and the inner wall surface are different. The multiple regions are provided along a circumferential direction of the inner wall surface. The tube body is attached to an opening area in the enclosure.
    Type: Application
    Filed: January 2, 2019
    Publication date: May 9, 2019
    Inventors: Akira MIKI, Hirofumi ONITSUKA, Katsuya UCHIDA
  • Patent number: 6641292
    Abstract: An illumination axis adjusting apparatus includes a stepping motor integrally having in turn an automatic angle adjusting structure for automatically adjusting the angle of the illumination axis of an automotive headlamp by driving the motor and a manual angle adjusting structure for manually adjusting the angle of the illumination axis of the headlamp.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: November 4, 2003
    Inventors: Katsuya Miki, Hirofumi Doi, Mutsuo Sekiya
  • Publication number: 20020018348
    Abstract: An illumination axis adjusting apparatus includes a stepping motor integrally having in turn an automatic angle adjusting structure for automatically adjusting the angle of the illumination axis of an automotive headlamp by driving the motor and a manual angle adjusting structure for manually adjusting the angle of the illumination axis of the headlamp.
    Type: Application
    Filed: May 31, 2001
    Publication date: February 14, 2002
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Katsuya Miki, Hirofumi Doi, Mutsuo Sekiya
  • Patent number: 6144120
    Abstract: A stepping motor is provided with a plate spring for pressing a housing and a rotor against each other. One of the housing and the rotor is provided with a projection. Variations in position, which is inherent in position control by a related art stepping motor, due to lack of a retaining force subsequent to an initial position setting or due to variations in rotating speed of the motor, are eliminated. Thus the motor is suitably used for controlling of the position of, for example, an HID lamp unit.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: November 7, 2000
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hirofumi Doi, Katsuya Miki, Sotsuo Miyoshi, Masashi Wakisaka
  • Patent number: 5811293
    Abstract: An (R)-2-amino-1-phenylethanol derivative shown by the general formula (IIa) ##STR1## wherein R.sup.1 and R.sup.5 represent a hydrogen atom, etc.; R.sup.2, R.sup.3 and R.sup.4 independently represent a halogen atom, etc., or a salt thereof, can readily be produced (1) by permitting a microorganism belonging to the genus Rhodosporidium, the genus Comamonas or the like to act on a mixture of corresponding (R)-form and (S)-form to asymmetrically utilize, or (2) by permitting a microorganism belonging to the genus Lodderomyces, the genus Pilimelia or the like to act on a corresponding aminoketone derivative to asymmetrically reduce. An (R,R)-1-phenyl-2-?(2-phenyl-1-alkylethyl) amino!ethanol derivative having a high optical purity can easily be obtained from the compound of the formula (IIa) or a salt thereof. Said derivative is useful as an intermediate for producing an anti-obesity agent and so on.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: September 22, 1998
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Kazuaki Furukawa, Takayuki Abe, Hidekazu Akamatsu, Akinobu Matsuyama, Michio Ito, Noritsugu Yamasaki, Katsuya Miki, Kiyoshi Ikura, Takeshi Ishiguro
  • Patent number: 5629200
    Abstract: An (R)-2-amino-1-phenylethanol derivative shown by the general formula (IIa) ##STR1## wherein R.sup.1 and R.sup.5 represent a hydrogen atom, etc.; R.sup.2, R.sup.3 and R.sup.4 independently represent a halogen atom, etc., or a salt thereof, can readily be produced (1) by permitting a microorganism to act on a mixture of corresponding (R)-form and (S)-form to asymmetrically utilize, or (2) by permitting a microorganism to act on a corresponding aminoketone derivative to asymmetrically reduce. An (R,R)-1-phenyl-2-[(2-phenyl-1-alkylethyl) amino]ethanol derivative having a high optical purity can easily be obtained from the compound of the formula (IIa) or a salt thereof. Said derivative is useful as an intermediate for producing an anti-obesity agent.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: May 13, 1997
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Kazuaki Furukawa, Takayuki Abe, Hidekazu Akamatsu, Akinobu Matsuyama, Michio Ito, Noritsugu Yamasaki, Katsuya Miki, Kiyoshi Ikura, Takeshi Ishiguro