Patents by Inventor Yoshifumi Sakai

Yoshifumi Sakai 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: 20170190593
    Abstract: The purpose/problem of the present invention is to provide a method for producing tungsten complex oxide particles useful as a heat shield material or the like that permits inexpensive production of a stable composition. This method for producing tungsten complex oxide particles includes a step for preparing a dispersion in which a raw material powder has been dispersed, a step for feeding the dispersion into a thermal plasma flame, and a step for supplying gas containing oxygen to the terminal portion of the thermal plasma flame and producing tungsten complex oxide particles. The dispersion preferably includes a carbon element.
    Type: Application
    Filed: June 1, 2015
    Publication date: July 6, 2017
    Inventors: Yoshifumi SAKAI, Daisuke SATO, Keitaroh NAKAMURA, Akihiro KINOSHITA
  • Patent number: 9187442
    Abstract: A novel method for producing a stereoselective epoxyketone compound is provided. A method for producing an epoxyketone compound represented by the formula (1), as represented by the following scheme, whereby it is possible to obtain an epoxyketone derivative in good yield and at high selectivity and to provide an industrially useful production method and an intermediate thereof. wherein R1 is a hydrogen atom, a linear, branched or cyclic alkyl group, an aromatic group which may have a substituent, or a heterocyclic group which may have a substituent, and R2 is a protective group for an amino group. R is a hydrogen atom or a C1-10 alkyl group, and R's may be the same or different, provided that at least one R is a C1-10 alkyl group.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: November 17, 2015
    Assignee: Nissan Chemical Industies, Ltd.
    Inventors: Yukihiro Nishino, Kazuya Wakui, Shota Murase, Yoshifumi Sakai
  • Publication number: 20150126755
    Abstract: A novel method for producing a stereoselective epoxyketone compound is provided. A method for producing an epoxyketone compound represented by the formula (1), as represented by the following scheme, whereby it is possible to obtain an epoxyketone derivative in good yield and at high selectivity and to provide an industrially useful production method and an intermediate thereof. wherein R1 is a hydrogen atom, a linear, branched or cyclic alkyl group, an aromatic group which may have a substituent, or a heterocyclic group which may have a substituent, and R2 is a protective group for an amino group. R is a hydrogen atom or a C1-10 alkyl group, and R's may be the same or different, provided that at least one R is a C1-10 alkyl group.
    Type: Application
    Filed: June 27, 2013
    Publication date: May 7, 2015
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Yukihiro Nishino, Kazuya Wakui, Shota Murase, Yoshifumi Sakai
  • Publication number: 20120128898
    Abstract: Disclosed are black composite particles having a high light-shielding performance suitable as a black component such as a black matrix in a color filter. Further disclosed is a black resin composition from which a black matrix having a high light-shielding performance can be formed. The black composite particles are represented by the composition formula: TiNxOy.zX (wherein X is a metal atom such as silver; x is a number greater than 0 and less than 2; y is a number not less than 0 and less than 2; and z is a number greater than 0 and less than 10). The black resin composition comprises at least a light shielding agent, a resin, and a solvent and comprises the black composite particles as the light shielding agent.
    Type: Application
    Filed: June 15, 2010
    Publication date: May 24, 2012
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Yoshihiko Inoue, Akihiko Watanabe, Yoshifumi Sakai, Keitaro Nakamura
  • Patent number: 7375276
    Abstract: A pick-up system is provided that can be suitably used irrespective of the type of the guitar by means of an arrangement of a plurality of pick-up coils that can appropriately conform to the curvature of the strings that are arranged in a stringed instrument. In accordance with the pick-up system of the present invention, it is possible to adjust the curvature of the roof surfaces of the pick-up coils in conformance with the bending of a pick-up board on which the pick-up coils have been mounted. Therefore, a distance that is always an appropriate distance can be maintained between each of the pick-up coils that are arranged on the pick-up board and each of the strings by means of the suitable adjustment of the curvature of the pick-up board. Accordingly, there is the advantageous result that the vibrations of each of the strings can be appropriately detected irrespective of the type of guitar.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: May 20, 2008
    Assignee: Roland Corporation
    Inventors: Ryohei Kanayama, Yoshifumi Sakai, Yasunori Nagaoka
  • Patent number: 7304233
    Abstract: An apparatus for mounting a control unit on a stringed musical instrument. The apparatus is designed such that the control unit can be easily mounted on and removed from the stringed musical instrument. The apparatus provides more stable and more firm mounting of the control unit compared to similar apparatuses of the past. The apparatus facilitates the mounting of the control unit on either the front surface of the stringed musical instrument or the rear surface of the stringed musical instrument. When mounting the control unit on the front surface of the stringed musical instrument, the apparatus also facilitates mounting the control unit above the bridge of the stringed musical instrument.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: December 4, 2007
    Assignee: Roland Corporation
    Inventors: Keisuke Suzuki, Hiroshi Imamura, Yoshifumi Sakai
  • Patent number: 7222269
    Abstract: A tabular form screen on which input fields for a parameter and a set value can be added is used as a condition input screen. In a test pattern control part, set values of different parameter groups inputted via the condition input screen are arbitrarily combined, one set value group from each parameter group being selected for one combination, to automatically generate test patterns and parameter files which are information on the set values. An execution control section can control a server and a client terminal of an information processing system to execute performance tests successively only with one input operation based on the generated parameter files.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: May 22, 2007
    Assignee: NS Solutions Corporation
    Inventors: Kentaro Kurinami, Yoshifumi Sakai, Takashi Oshiro, Tatsuya Hasegawa
  • Publication number: 20060278067
    Abstract: An apparatus for mounting a control unit on a stringed musical instrument. The apparatus is designed such that the control unit can be easily mounted on and removed from the stringed musical instrument. The apparatus provides more stable and more firm mounting of the control unit compared to similar apparatuses of the past. The apparatus facilitates the mounting of the control unit on either the front surface of the stringed musical instrument or the rear surface of the stringed musical instrument. When mounting the control unit on the front surface of the stringed musical instrument, the apparatus also facilitates mounting the control unit above the bridge of the stringed musical instrument.
    Type: Application
    Filed: June 8, 2005
    Publication date: December 14, 2006
    Inventors: Keisuke Suzuki, Hiroshi Imamura, Yoshifumi Sakai
  • Publication number: 20050126377
    Abstract: A pick-up system is provided that can be suitably used irrespective of the type of the guitar by means of an arrangement of a plurality of pick-up coils that can appropriately conform to the curvature of the strings that are arranged in a stringed instrument. In accordance with the pick-up system of the present invention, it is possible to adjust the curvature of the roof surfaces of the pick-up coils in conformance with the bending of a pick-up board on which the pick-up coils have been mounted. Therefore, a distance that is always an appropriate distance can be maintained between each of the pick-up coils that are arranged on the pick-up board and each of the strings by means of the suitable adjustment of the curvature of the pick-up board. Accordingly, there is the advantageous result that the vibrations of each of the strings can be appropriately detected irrespective of the type of guitar.
    Type: Application
    Filed: December 8, 2004
    Publication date: June 16, 2005
    Inventors: Ryohei Kanayama, Yoshifumi Sakai, Yasunori Nagaoka
  • Publication number: 20030110421
    Abstract: A tabular form screen on which input fields for a parameter and a set value can be added is used as a condition input screen. In a test pattern control part, set values of different parameter groups inputted via the condition input screen are arbitrarily combined, one set value group from each parameter group being selected for one combination, to automatically generate test patterns and parameter files which are information on the set values. An execution control section can control a server and a client terminal of an information processing system to execute performance tests successively only with one input operation based on the generated parameter files.
    Type: Application
    Filed: December 4, 2002
    Publication date: June 12, 2003
    Applicant: NS SOLUTIONS CORPORATION
    Inventors: Kentaro Kurinami, Yoshifumi Sakai, Takashi Oshiro, Tatsuya Hasegawa
  • Patent number: 6038461
    Abstract: There are disclosed a high temperature superconductive material which can be plastically deformed, processed optionally into predetermined configurations and industrially mass produced and a method of manufacturing a formed body of the high temperature superconductive material. Mixed is a powder raw material which is mainly composed of: 10 to 50 mol % of at least one amide or nitride of alkali metal of Li, Na or K; 10 to 60 mol % of cyanide containing at least one metal selected from aluminum, copper, silver or gold; 5 to 50 mol % of at least one pure metal selected from aluminum, copper, silver or gold; and 10 mol % or less of at least one alkaline earth metal selected from Be, Mg, Ca, Sr or Ba. The powder raw material is pressed, and heated and sintered at the temperature of 673 K to 1553 K. In this manner, obtained is the plastically deformable high temperature superconductive material which can be optionally processed through forging, rolling and the like.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: March 14, 2000
    Inventors: Yoshifumi Sakai, Itsuko Sakai
  • Patent number: 5812697
    Abstract: A method of recognizing handwritten characters. A recognition dictionary is prepared including a plurality of characters and corresponding character clusters. A weighting dictionary is prepared including weighting clusters and corresponding object characters. All segmentation position candidates are selected by segmenting handwritten character ink data. Each of the position candidates is separated in a direction corresponding to a direction in which the handwritten character ink data is inputted from a leading position of the ink data and satisfying a predetermined condition. A character candidate is selected corresponding to each segment of the ink data segmented at the segmentation position candidates by referring to the recognition dictionary and calculating a distance value between each of the segments of the ink data and a selected one of the character clusters.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: September 22, 1998
    Assignee: Nippon Steel Corporation
    Inventors: Yoshifumi Sakai, Yoshitaka Ikeda