Patents by Inventor Naoki Yokokawa

Naoki Yokokawa 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).

  • Spotting pin, spotting device and method for spotting biomolecules
    Patent number: 6767748
    Abstract: The present invention enables the accurate management of the total number of spotting counts for each spotting pin. An IC chip is installed on the spotting pin to allow the IC chip to accumulate spotting-count information, and during each spotting time the information is loaded up and displayed.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: July 27, 2004
    Assignee: Hitachi Software Engineering Co., Ltd.
    Inventors: Naoki Yokokawa, Mitsuhiro Tachibana, Hiroshi Kishida
  • Spotting pin
    Patent number: 6726883
    Abstract: Identically shaped spots can be formed sequentially and stably by a spotting pin comprising a bar-like plunger 20. Four projections each formed in the shape of a top portion of a quadrangular pyramid are formed on the head of the plunger 20. The apexes 21 of the quadrangular pyramids constituting the projections are located inside a virtual plane extending from the peripheral wall of the plunger.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: April 27, 2004
    Assignee: Hitachi Software Engineering Co., Ltd.
    Inventors: Seiichiro Ito, Mitsuhiro Tachibana, Naoki Yokokawa
  • Spotting pin
    Publication number: 20030223911
    Abstract: Identically shaped spots can be formed sequentially and stably by a spotting pin comprising a bar-like plunger 20. Four projections each formed in the shape of a top portion of a quadrangular pyramid are formed on the head of the plunger 20. The apexes 21 of the quadrangular pyramids constituting the projections are located inside a virtual plane extending from the peripheral wall of the plunger.
    Type: Application
    Filed: May 20, 2003
    Publication date: December 4, 2003
    Applicant: Hitachi Software Engineering Co., Ltd.
    Inventors: Seiichiro Ito, Mitsuhiro Tachibana, Naoki Yokokawa
  • Spotting pin, spotting device and method for spotting biomolecules
    Publication number: 20030211013
    Abstract: The present invention enables the accurate management of the total number of spotting counts for each spotting pin. An IC chip is installed on the spotting pin to allow the IC chip to accumulate spotting-count information, and during each spotting time the information is loaded up and displayed.
    Type: Application
    Filed: May 6, 2003
    Publication date: November 13, 2003
    Applicant: Hitachi Software Engineering Co., Ltd.
    Inventors: Naoki Yokokawa, Mitsuhiro Tachibana, Hiroshi Kishida
  • Method and apparatus for reading fluorescence
    Patent number: 6646271
    Abstract: The present invention aims at minimizing the influence of residual fluorescence emitted from adjacent spots, upon reading time-resolved fluorescence. The path of laser beam scan is set to be intermittent such that residual fluorescence from adjacent spots gives no effect. In other words, the spots are read in a skipping manner.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: November 11, 2003
    Assignee: Hitachi Software Engineering CO, Ltd.
    Inventors: Naoki Yokokawa, Mitsuhiro Tachibana
  • Method and apparatus for reading fluorescence
    Publication number: 20020121611
    Abstract: The present invention aims at minimizing the influence of residual fluorescence emitted from adjacent spots, upon reading time-resolved fluorescence.
    Type: Application
    Filed: November 28, 2001
    Publication date: September 5, 2002
    Inventors: Naoki Yokokawa, Mitsuhiro Tachibana