Patents by Inventor Osamu Tokuda

Osamu Tokuda 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: 11985282
    Abstract: Provided is an image reading system that divides, with respect to image data obtained by performing a double sided reading in a state where a booklet is opened, cover sheet image data into two parts corresponding to a pair of cover sheets to arrange the two parts at a front and an end, respectively, and arranges main text image data between the front and the end, and then generates an image file from each of the arranged image data.
    Type: Grant
    Filed: February 22, 2023
    Date of Patent: May 14, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Nobutaka Suzuki, Nao Sato, Osamu Koyama, Masatomo Kanamitsu, Hideaki Tokuda
  • Patent number: 9369109
    Abstract: A surface acoustic wave device includes a quartz substrate and a periodic structure portion. The quartz substrate is constituted such that a surface acoustic wave is to propagate on a surface with an Euler angle of (0°, 16°<??18.5°, 0°). The periodic structure portion is disposed on the quartz substrate and includes a plurality of electrodes extending in a direction intersecting with a direction of the propagation of the surface acoustic wave. The electrodes are disposed in parallel to one another along the propagation direction. The periodic structure portion is constituted to mainly contain aluminum. When a width dimension of the electrode in the propagation direction and a separation dimension between the electrodes adjacent to one another are respectively defined as L and S, a metallization ratio ? (?=L÷(L+S)) is set to 0.4 or less.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: June 14, 2016
    Assignee: NIHON DEMPA KOGYO CO., LTD.
    Inventors: Kazuhiro Hirota, Osamu Tokuda
  • Publication number: 20150137903
    Abstract: A surface acoustic wave device includes a quartz substrate and a periodic structure portion. The quartz substrate is constituted such that a surface acoustic wave is to propagate on a surface with an Euler angle of (0°, 16°<??18.5°, 0°). The periodic structure portion is disposed on the quartz substrate and includes a plurality of electrodes extending in a direction intersecting with a direction of the propagation of the surface acoustic wave. The electrodes are disposed in parallel to one another along the propagation direction. The periodic structure portion is constituted to mainly contain aluminum. When a width dimension of the electrode in the propagation direction and a separation dimension between the electrodes adjacent to one another are respectively defined as L and S, a metallization ratio ? (?=L÷(L+S)) is set to 0.4 or less.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 21, 2015
    Inventors: KAZUHIRO HIROTA, OSAMU TOKUDA
  • Publication number: 20140292444
    Abstract: An elastic wave filter includes an electrode finger group in an input side electrode and an electrode finger group in output side electrode each disposed in a taper shape such that elastic waves with mutually different wavelengths propagate on a piezoelectric substrate across from a track Tr1 at a low frequency side of a passband to a track Tr2 at a high frequency side of the passband. Assuming that a period length P is a wavelength of the elastic wave propagating on the piezoelectric substrate and constituted of a width dimension of the finger and a separation dimension between the adjacent electrode fingers, at least one of the input side IDT electrode and the output side IDT electrode includes a specific configuration.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Applicant: NIHON DEMPA KOGYO CO., LTD.
    Inventors: OSAMU TOKUDA, TADAAKI TSUDA
  • Publication number: 20110172431
    Abstract: A process is provided for producing a 1-substituted trans-4-(substituted amino)piperidin-3-ol represented by formula (III-1): The process includes a step of reacting a 1-substituted-3,4-epoxypiperidine represented by formula (I): with an amine compound represented by formula (II) in the presence of an inorganic lithium salt. By utilizing the process, trans-4-aminopiperidin-3-ol compounds useful as various chemical products, such as medicine intermediates, can be produced.
    Type: Application
    Filed: September 25, 2009
    Publication date: July 14, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Toshiaki Aikawa, Osamu Tokuda, Tetsuya Ikemoto
  • Publication number: 20110166357
    Abstract: An N-substituted-trans-4-azidopiperidin-3-ol represented by formula (II-1) R1 is as defined below, which is useful as a pharmaceutical intermediate and so on, is produced by reacting an N-substituted-3,4-epoxypiperidine represented by formula (I): wherein R1 represents an aralkyl group having 7 to 24 carbon atoms or an alkyl group having 1 to 12 carbon atoms, with sodium azide in the presence of an inorganic lithium salt.
    Type: Application
    Filed: September 2, 2009
    Publication date: July 7, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Osamu Tokuda, Toshiaki Aikawa, Tetsuya Ikemoto
  • Patent number: 7592485
    Abstract: The present invention provides a process for producing (Z)-1-phenyl-1-diethylaminocarbonyl-2-aminomethylcyclopropane or hydrochloride thereof, which comprises a step of reacting (Z)-1-phenyl-1-diethylaminocarbonyl-2-phthalimidomethylcyclopropane by contacting said compound with an aqueous methylamine solution having a concentration of from 1 to 25% by weight to obtain (Z)-1-phenyl-1-diethylaminocarbonyl-2-aminomethylcyclopropane.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: September 22, 2009
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yoshihide Niimoto, Hiroharu Kumazawa, Osamu Tokuda, Fumiaki Ibukuro
  • Publication number: 20080064885
    Abstract: The present invention provides a process for producing 2-oxo-1-phenyl-3-oxabicyclo[3.1.0]hexane which comprises reacting phenylacetonitrile with epichlorohydrin in the presence of sodium hydride. According to the present invention, 2-oxo-1-phenyl-3-oxabicyclo[3.1.0]hexane can be produced safely, easily and industrially advantageously.
    Type: Application
    Filed: June 14, 2005
    Publication date: March 13, 2008
    Inventors: Yoshihide Niimoto, Hiroharu Kumazawa, Osamu Tokuda, Koh Kawami
  • Publication number: 20080051604
    Abstract: The present invention provides a process for producing (Z)-1-phenyl-1-diethylaminocarbonyl-2-aminomethylcyclopropane or hydrochloride thereof, which comprises a step of reacting (Z)-1-phenyl-1-diethylaminocarbonyl-2-phthalimidomethylcyclopropane by contacting said compound with an aqueous methylamine solution having a concentration of from 1 to 25% by weight to obtain (Z)-1-phenyl-1-diethylaminocarbonyl-2-aminomethylcyclopropane.
    Type: Application
    Filed: June 23, 2005
    Publication date: February 28, 2008
    Inventors: Yoshihide Niimoto, Hiroharu Kumazawa, Osamu Tokuda, Fumiaki Ibukuro
  • Patent number: 7053240
    Abstract: This invention relates to a process for producing a substantially pure disulfide compound of Formula II as disclosed herein, such as disodium 2,2?-dithiobis ethane sulfonate, by an efficient procedure from available, relatively inexpensive raw materials.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: May 30, 2006
    Assignee: BioNumerik Pharmaceuticals, Inc.
    Inventors: Koh Kawami, Osamu Tokuda, Yoshihide Niimoto
  • Publication number: 20050137419
    Abstract: This invention relates to a process for producing a substantially pure disulfide compound of Formula II as disclosed herein, such as disodium 2,2?-dithiobis ethane sulfonate, by an efficient procedure from available, relatively inexpensive raw materials.
    Type: Application
    Filed: December 17, 2004
    Publication date: June 23, 2005
    Inventors: Koh Kawami, Osamu Tokuda, Yoshihide Niimoto