Patents by Inventor Nobuyoshi Tsuda

Nobuyoshi Tsuda 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: 8430555
    Abstract: Provided are an agitation apparatus, a vessel, and an analysis apparatus including the agitation apparatus that have excellent energy transmission efficiency, and simplified structure allowing downsizing, and are easy to perform maintenance. An agitation apparatus (20), a vessel (5), and an analysis apparatus (1) including the agitation apparatus agitate a liquid retained in the vessel (5) using sound waves. The agitation apparatus (20) includes a power transmitter (21) that transmits power, an electric terminal (24c) that receives the power transmitted from the power transmitter and changes a relative arrangement with respect to the power transmitter when an arrangement of at least one of the power transmitter and the electric terminal (24c) changes, and a sound wave generator (24b) that generates sound waves by converting the power received by the electric terminal (24c) to agitate the liquid.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: April 30, 2013
    Assignee: Beckman Coulter, Inc.
    Inventors: Miyuki Murakami, Nobuyoshi Tsuda
  • Patent number: 8252231
    Abstract: An analyzer includes plural stirrers that have plural sound-wave generating units, which are provided on respective vessels holding liquid and generate sound wave toward the liquid, and drive units, which drive the plurality of sound-wave generating units, and that stir the liquid using sound wave generated by the sound-wave generating units; a power detecting unit that detects traveling-wave power output from the drive unit and reflected-wave power reflected from the sound-wave generating unit; and a control unit that determines whether an abnormality occurs in each of the stirrers on the sound-wave generating unit side or on the drive unit side in each of the stirrers based on a reflectivity of the power, and controls continuation or suspension of an analytical work based on a result of the determination.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: August 28, 2012
    Assignee: Beckman Coulter, Inc.
    Inventor: Nobuyoshi Tsuda
  • Patent number: 8235578
    Abstract: Provided here is an agitation vessel which enhances energy transmission efficiency in an agitation apparatus and an analysis apparatus, simplifies the structure of the agitation apparatus and the analysis apparatus, and allows for downsizing and improved maintenanceability. An agitation vessel (5) agitates retained liquid by sound waves. A sound wave generating member (24) which generates sound waves is provided integrally with the agitation vessel (5). The agitation vessel (5) includes a bottom wall (5d) and plural side walls (5c) made of an optically transparent material, and a part of the opposing side walls among the plural side walls (5c) is a photometric window (5b) that optically measures the liquid agitated. The sound wave generating member (24) is arranged on the side wall (5c), on which the photometric window (5b) is arranged, among the plural side walls (5c).
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: August 7, 2012
    Assignee: Beckman Coulter, Inc.
    Inventors: Miyuki Murakami, Nobuyoshi Tsuda
  • Patent number: 8197126
    Abstract: A stirring determining device that determines whether stirring by a stirrer, which stirs liquid contained in a vessel using sound wave generated by a sound-wave generating unit that is attached to the vessel, is successful or unsuccessful. The stirring determining device includes a temperature sensor that measures a temperature of the liquid; and a determining unit that determines whether stirring of the liquid contained in the vessel is successful or unsuccessful depending on the temperature of the liquid measured at least before and after the stirring by the temperature sensor.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: June 12, 2012
    Assignee: Beckman Coulter, Inc.
    Inventor: Nobuyoshi Tsuda
  • Publication number: 20100135352
    Abstract: A stirring determining device that determines whether stirring by a stirrer, which stirs liquid contained in a vessel using sound wave generated by a sound-wave generating unit that is attached to the vessel, is successful or unsuccessful. The stirring determining device includes a temperature sensor that measures a temperature of the liquid; and a determining unit that determines whether stirring of the liquid contained in the vessel is successful or unsuccessful depending on the temperature of the liquid measured at least before and after the stirring by the temperature sensor.
    Type: Application
    Filed: January 14, 2010
    Publication date: June 3, 2010
    Applicant: Beckman Coulter, Inc.
    Inventor: Nobuyoshi Tsuda
  • Publication number: 20100112704
    Abstract: An analyzer includes plural stirrers that have plural sound-wave generating units, which are provided on respective vessels holding liquid and generate sound wave toward the liquid, and drive units, which drive the plurality of sound-wave generating units, and that stir the liquid using sound wave generated by the sound-wave generating units; a power detecting unit that detects traveling-wave power output from the drive unit and reflected-wave power reflected from the sound-wave generating unit; and a control unit that determines whether an abnormality occurs in each of the stirrers on the sound-wave generating unit side or on the drive unit side in each of the stirrers based on a reflectivity of the power, and controls continuation or suspension of an analytical work based on a result of the determination.
    Type: Application
    Filed: January 14, 2010
    Publication date: May 6, 2010
    Applicant: Beckman Coulter, Inc.
    Inventor: Nobuyoshi Tsuda
  • Publication number: 20080095667
    Abstract: Provided are an agitation apparatus, a vessel, and an analysis apparatus including the agitation apparatus that have excellent energy transmission efficiency, and simplified structure allowing downsizing, and are easy to perform maintenance. An agitation apparatus (20), a vessel (5), and an analysis apparatus (1) including the agitation apparatus agitate a liquid retained in the vessel (5) using sound waves. The agitation apparatus (20) includes a power transmitter (21) that transmits power, an electric terminal (24c) that receives the power transmitted from the power transmitter and changes a relative arrangement with respect to the power transmitter when an arrangement of at least one of the power transmitter and the electric terminal (24c) changes, and a sound wave generator (24b) that generates sound waves by converting the power received by the electric terminal (24c) to agitate the liquid.
    Type: Application
    Filed: September 16, 2005
    Publication date: April 24, 2008
    Inventors: Miyuki Murakami, Nobuyoshi Tsuda
  • Publication number: 20080074945
    Abstract: Provided here is an agitation vessel which enhances energy transmission efficiency in an agitation apparatus and an analysis apparatus, simplifies the structure of the agitation apparatus and the analysis apparatus, and allows for downsizing and improved maintenanceability. An agitation vessel (5) agitates retained liquid by sound waves. A sound wave generating member (24) which generates sound waves is provided integrally with the agitation vessel (5). The agitation vessel (5) includes a bottom wall (5d) and plural side walls (5c) made of an optically transparent material, and a part of the opposing side walls among the plural side walls (5c) is a photometric window (5b) that optically measures the liquid agitated. The sound wave generating member (24) is arranged on the side wall (5c), on which the photometric window (5b) is arranged, among the plural side walls (5c).
    Type: Application
    Filed: September 16, 2005
    Publication date: March 27, 2008
    Inventors: Miyuki Murakami, Nobuyoshi Tsuda