Patents by Inventor Tetsuya Tachibe

Tetsuya Tachibe 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).

  • Method of quantitative analysis of hexavalent chromium in chromate coating and method for controlling hazardous element in encapsulating resin of resin encapsulation semiconductor device
    Patent number: 9261493
    Abstract: This invention relates to a method of quantitative analysis of hexavalent chromium in a chromate coating on a substrate. In this method a substrate on which the chromate coating is formed is immersed into an aqueous solution containing lithium hydroxide to extract hexavalent chromium within an extraction solution. Quantitative analysis of extracted hexavalent chromium in the extraction solution is then performed.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: February 16, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tetsuya Tachibe, Mitsuhiro Oki, Miyuki Takenaka
  • MAGNETIC REFRIGERATION MATERIAL AND MAGNETIC REFRIGERATION DEVICE
    Publication number: 20070220901
    Abstract: A magnetic refrigeration material has magnetic material particles with a magnetocaloric effect and an oxidation-resistant film formed on the surfaces of the magnetic material particles.
    Type: Application
    Filed: February 16, 2007
    Publication date: September 27, 2007
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Tadahiko KOBAYASHI, Akiko Saito, Hideyuki Tsuji, Tetsuya Tachibe
  • Method of quantitative analysis of hexavalent chromium in chromate coating
    Publication number: 20070048873
    Abstract: A method of quantitative analysis of hexavalent chromium in a chromate coating includes immersing a substrate on which a chromate coating is formed in an aqueous solution containing lithium hydroxide to extract hexavalent chromium, and performing quantitative analysis of extracted hexavalent chromium.
    Type: Application
    Filed: August 29, 2006
    Publication date: March 1, 2007
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Tetsuya Tachibe, Mitsuhiro Oki, Miyuki Takenaka
  • Method of measuring an impurity profile of a semiconductor wafer and program for measuring an impurity profile of a semiconductor wafer
    Publication number: 20030008404
    Abstract: Disclosed is a program for measuring the impurity in semiconductor wafer, comprising an instruction for supplying to a computer a reference dose, an instruction for causing the computer to convert each of a plurality of impurity profiles measured in a direction of depth of the semiconductor wafer into a dose, and an instruction for causing the computer to select a converted dose closest to the reference dose from the plurality of converted doses.
    Type: Application
    Filed: June 14, 2002
    Publication date: January 9, 2003
    Inventors: Mitsuhiro Tomita, Shoji Kozuka, Tetsuya Tachibe, Masamichi Suzuki
  • Method of reclaiming cathodic active material of lithium ion secondary battery
    Patent number: 6261712
    Abstract: Disclosed is a method of reclaiming a cathodic active material of lithium ion secondary batteries. The lithium ion secondary battery is broken and the casing and the content are separated to remove the casing from the content. The content is dissolved into a mineral acid to separate remaining non-dissolved content from the mineral acid to obtain a liquid containing the cathodic active material represented by the formula: LiMO2, where M is a transition metal element: cobalt, nickel and manganese. A lithium salt is added to the liquid, and the cathodic active material is recovered from the liquid in the form of a mixture of lithium compound and the transition metal compound, which is calcined and reclaimed into the cathodic active material.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: July 17, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masaru Hayashi, Fuminobu Tezuka, Yuki Tomioka, Kunihiko Sasaki, Tetsuya Tachibe