Patents by Inventor Katsuyuki Takeuchi

Katsuyuki Takeuchi 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: 20190054240
    Abstract: A syringe barrel includes: a hollow body portion that is configured such that a gasket is slidably insertable therein. The syringe barrel is made of a resin that has a total light transmittance of 80% or more. A scale is disposed at an inner circumferential surface or an outer circumferential surface of the body portion, the scale being visible from an outside of the syringe barrel and being configured to indicate a liquid amount. The scale is formed by (i) a stepped structure having a step height in a range of 0.001 to 0.15 mm in a radial direction, and/or (ii) an embossment.
    Type: Application
    Filed: October 24, 2018
    Publication date: February 21, 2019
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Katsuyuki TAKEUCHI, Eiji Yagishita, Nobukazu AKAIKE
  • Publication number: 20190054241
    Abstract: A syringe body for a prefilled syringe includes: a hollow body portion; a proximal-end opening portion provided at a proximal end portion of the body portion; and a distal-end nozzle provided at a distal end portion of the body portion. The body portion is made of a cyclic olefin polymer or a cyclic olefin copolymer. The body portion has a thick body portion accounting for 80% or more of the body portion along an axial direction. A wall thickness of the thick body portion is 2.23 to 2.40 mm.
    Type: Application
    Filed: October 24, 2018
    Publication date: February 21, 2019
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Katsuyuki TAKEUCHI, Eiji YAGISHITA, Nobukazu AKAIKE, Koji NAKAMURA, Tsutomu UEDA, Kimiya MORI
  • Patent number: 8102234
    Abstract: A layered inductor is manufactured by layering “silver-based conductive layers” and “ferrite-based magnetic layers” and simultaneously firing these layers. The conductive layers are via-connected to form a helical coil. A shape of a cross sectional surface of the conductive layer, cut by a plane perpendicular to a longitudinal direction of each of the conductive layers is a substantial trapezoid shape, having an upper base and a lower base. A base angle ? of the trapezoid shape at both ends of the lower base is equal to or greater than 50° and is smaller than or equal to 80°.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: January 24, 2012
    Assignee: NGK Insulators, Ltd.
    Inventors: Shuichi Ozawa, Natsumi Shimogawa, Katsuyuki Takeuchi, Yukio Aisaka
  • Publication number: 20110121930
    Abstract: The invention relates to a coil-buried type inductor. The inductor comprises a conductive coil, a first fired ceramics body arranged at least in an area along an inner periphery of the coil, and a second fired ceramics body arranged so as to surround the entire of the coil along with the first fired ceramics body. The first fired ceramics body has porosity equal to or larger than 40 percent and smaller than 70 percent.
    Type: Application
    Filed: September 17, 2010
    Publication date: May 26, 2011
    Applicant: NGK Insulators, Ltd.
    Inventors: Katsuyuki TAKEUCHI, Natsumi Shimogawa, Shuichi Ozawa
  • Publication number: 20110080635
    Abstract: A image display device of the present invention forms and displays an image by light emitted from a light source. The image display device includes a wavelength selection means (2) arranged on the light path of light emitted from the light source and that, as the reflected light of this light, reflects light belonging to a first wavelength range and light belonging to a second wavelength range that differs from the first wavelength range at a predetermined period.
    Type: Application
    Filed: June 13, 2008
    Publication date: April 7, 2011
    Inventor: Katsuyuki Takeuchi
  • Publication number: 20110007281
    Abstract: A projector including a light source, an optical deflection element including a reflective surface, a mounting plate that holds the optical deflection element with a heat conductive member interposed between the optical deflection element and the mounting plate so that the reflective surface faces the light source, and a foreign matter intrusion preventing frame that is provided between the light source and the mounting plate so as to surround the reflective surface, the projector including: a heat receiving portion that is provided so as to surround at least one side of the optical deflection element; a heat radiating portion that is provided on the mounting plate outside the foreign matter intrusion preventing frame; and a heat pipe that includes the heat receiving portion and the heat radiating portion.
    Type: Application
    Filed: March 25, 2009
    Publication date: January 13, 2011
    Inventors: Minoru Yoshikawa, Masaki Chiba, Katsuyuki Takeuchi
  • Publication number: 20100194513
    Abstract: A layered inductor 10 is manufactured by layering “silver-based conductive layers” and “ferrite-based magnetic layers” and simultaneously firing these layers. The conductive layers are via-connected to form a helical coil 30. A shape of a cross sectional surface of the conductive layer, cut by a plane perpendicular to a longitudinal direction of each of the conductive layers is a substantial trapezoid shape, having an upper base and a lower base. A base angle ? of the trapezoid shape at both ends of the lower base is equal to or greater than 50° and is smaller than or equal to 80°.
    Type: Application
    Filed: January 22, 2010
    Publication date: August 5, 2010
    Applicant: NGK Insulators, Ltd.
    Inventors: Shuichi Ozawa, Natsumi Shimogawa, Katsuyuki Takeuchi, Yukio Aisaka
  • Patent number: 7655180
    Abstract: A method for controlling the shrinkage of ceramic formed bodies is provided, including performing a preliminary test to determine an average shrinkage of ceramic formed bodies made from test lots of a ceramic powder, and determining a linear correlation between the average shrinkage and measured amounts of the ground test lots removed from a ball mill during a specific milling time interval. A batch of the ceramic powder is then ground, an amount of the ground ceramic powder removed from the ball mill during the specific time interval is measured, and the linear correlation is used to estimate the shrinkage of a ceramic body made therefrom. The difference between a target shrinkage and the estimated shrinkage is determined, and one or more of the processing conditions used to form the ceramic body are changed to offset the difference.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: February 2, 2010
    Assignee: NGK Insulators, Ltd.
    Inventors: Yukihisa Takeuchi, Tsutomu Nanataki, Koichi Iwata, Katsuyuki Takeuchi, Takuji Kimura
  • Patent number: 7540617
    Abstract: An illumination optical apparatus and a projection type display apparatus capable of preventing an image on boundary lines of a fly-eye lens from deviating from a designed position and preventing unevenness of brightness is provided: wherein a first lens holding member holding said first fly-eye lens; a second lens holding member joined to said first lens holding member, and holding said second fly-eye lens; and a third lens holding member joined to said second lens holding member, and holding an optical lens are provided; and said first lens holding member and said second lens holding member are joined to be relatively rotatable about an optical axis.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: June 2, 2009
    Assignees: Kyocera Corporation, NEC Display Solutions, Ltd.
    Inventors: Ryuuji Yamada, Hiroshi Gouda, Katsuyuki Takeuchi
  • Patent number: 7438424
    Abstract: An illumination optical apparatus and a projection type display apparatus capable of enhancing an illumination efficiency; having an ellipsoidal mirror, a light source arranged at a first focal point of the ellipsoidal mirror, a stop arranged closer to said light source side by a predetermined distance from a second focal point of said ellipsoidal mirror, and a positive refractive collimator lens for collimating a light flux emitted from the stop to a parallel light flux. A condition (0.01<L2/L1<0.06) is satisfied where, L1 is a distance from an apex of the ellipsoidal mirror to the second focal point thereof and, L2 (the light source side is a positive distance) is a distance from the second focal point of the ellipsoidal mirror to the stop.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: October 21, 2008
    Assignees: Kyocera Corporation, NEC Display Solutions, Ltd.
    Inventors: Ryuuji Yamada, Katsuyuki Takeuchi
  • Patent number: 7384152
    Abstract: A liquid-cooled projector incorporating cooling a component that to be cooled by a cooling liquid, and moreover, can constantly maintain the temperature of the component to be cooled at a prescribed temperature or below. A liquid-cooling jacket for cooling either one or both of the optical modulation element and cold mirror, which are the components that are to be cooled, one or a plurality of radiators, one or a plurality of reserve tanks, and one or a plurality of circulation pumps are connected together by piping. The components that are to be cooled are maintained at or below the prescribed temperature by circulating the cooling liquid through the system, which can further be separated at any position by couplers. By collecting the air that is generated in the cooling system in the reserve tank, idle running of the circulation pump can be prevented, and the effect of expansion and shrinkage in the volume of the cooling liquid can be mitigated.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: June 10, 2008
    Assignee: NEC ViewTechnology, Ltd.
    Inventor: Katsuyuki Takeuchi
  • Patent number: 7177078
    Abstract: A projection type display apparatus, wherein a common case can be used for housing an illumination optical system even when a shape of an image display element and an optical path length in a prism are different, is provided: wherein a light source for emitting an illumination light, an image display device, an illumination optical system for irradiating the illumination light from the light source to the image display device, and a projection optical system for projecting an image formed by said image display device are provided; the illumination optical system comprises a first fly-eye lens and a second fly-eye lens arranged at each other's focal points, a first lens group and a second lens group arranged over a mirror for bending an optical path; the first and second lens groups have a same focal length but a different back focus; and predetermined condition formulas are satisfied.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: February 13, 2007
    Assignees: Kyocera Corporation, NEC Viewtechnology, Ltd.
    Inventors: Ryuuji Yamada, Hiroshi Gouda, Katsuyuki Takeuchi
  • Publication number: 20060114557
    Abstract: A projection type display apparatus, wherein a common case can be used for housing an illumination optical system even when a shape of an image display element and an optical path length in a prism are different, is provided: wherein a light source for emitting an illumination light, an image display device, an illumination optical system for irradiating the illumination light from the light source to the image display device, and a projection optical system for projecting an image formed by said image display device are provided; the illumination optical system comprises a first fly-eye lens and a second fly-eye lens arranged at each other's focal points, a first lens group and a second lens group arranged over a mirror for bending an optical path; the first and second lens groups have a same focal length but a different back focus; and predetermined condition formulas are satisfied.
    Type: Application
    Filed: November 7, 2005
    Publication date: June 1, 2006
    Inventors: Ryuuji Yamada, Hiroshi Gouda, Katsuyuki Takeuchi
  • Publication number: 20060114418
    Abstract: An illumination optical apparatus and a projection type display apparatus capable of preventing an image on boundary lines of a fly-eye lens from deviating from a designed position and preventing unevenness of brightness is provided: wherein a first lens holding member holding said first fly-eye lens; a second lens holding member joined to said first lens holding member, and holding said second fly-eye lens; and a third lens holding member joined to said second lens holding member, and holding an optical lens are provided; and said first lens holding member and said second lens holding member are joined to be relatively rotatable about an optical axis.
    Type: Application
    Filed: November 8, 2005
    Publication date: June 1, 2006
    Inventors: Ryuuji Yamada, Hiroshi Gouda, Katsuyuki Takeuchi
  • Publication number: 20060114676
    Abstract: An illumination optical apparatus and a projection type display apparatus capable of enhancing an illumination efficiency; having an ellipsoidal mirror, a light source arranged at a first focal point of the ellipsoidal mirror, a stop arranged closer to said light source side by a predetermined distance from a second focal point of said ellipsoidal mirror, and a positive refractive collimator lens for collimating a light flux emitted from the stop to a parallel light flux. A condition (0.01<L2/L1<0.06) is satisfied where, L1 is a distance from an apex of the ellipsoidal mirror to the second focal point thereof and, L2 (the light source side is a positive distance) is a distance from the second focal point of the ellipsoidal mirror to the stop.
    Type: Application
    Filed: November 21, 2005
    Publication date: June 1, 2006
    Inventors: Ryuuji Yamada, Katsuyuki Takeuchi
  • Publication number: 20060043648
    Abstract: The present invention provides a method for controlling the shrinkage of formed ceramic bodies, by which it is possible to suppress fluctuation of the shrinkage of formed ceramic bodies and to cause the shrinkage to approximate the target rate. The method comprises controlling the shrinkage of formed ceramic bodies in manufacturing ceramic products by a predetermined manufacturing process from ceramic powder ground by a dry-type ball mill. Such control can be achieved by determining a correlation between the change in the amount of the ground ceramic powder taken out from the dry-type ball mill with elapse time and the shrinkage during firing of the formed ceramic body, and thereafter adjusting the manufacturing conditions based on the previously-determined conditions for the above-mentioned manufacturing process and the correlation with respect to the shrinkage obtained.
    Type: Application
    Filed: July 15, 2005
    Publication date: March 2, 2006
    Applicant: NGK Insulators, Ltd.
    Inventors: Yukihisa Takeuchi, Tsutomu Nanataki, Koichi Iwata, Katsuyuki Takeuchi, Takuji Kimura
  • Publication number: 20050236144
    Abstract: A liquid-cooled projector incorporates a means for cooling a component that to be cooled by means of a cooling liquid, and moreover, can constantly maintain the temperature of the component to be cooled at a prescribed temperature or below. A liquid-cooling jacket for cooling either one or both of the optical modulation element and cold mirror, which are the components that are to be cooled, one or a plurality of radiators, one or a plurality of reserve tanks, and one or a plurality of circulation pumps are connected together by piping. The components that are to be cooled are maintained at or below the prescribed temperature by circulating the cooling liquid through the system, which can further be separated at any position by couplers. By collecting the air that is generated in the cooling system in the reserve tank, idle running of the circulation pump can be prevented, and the effect of expansion and shrinkage in the volume of the cooling liquid can be mitigated.
    Type: Application
    Filed: April 21, 2005
    Publication date: October 27, 2005
    Applicant: NEC Viewtechnology, Ltd.
    Inventor: Katsuyuki Takeuchi
  • Patent number: 6879775
    Abstract: In an optical disc playback apparatus capable of appropriately setting a font resolution of an on-screen message depending on a display resolution of data to be reproduced from an optical disc, a reader 12, 13, 14, 15 reads record data Si from a recording surface of the optical disc Od. An on-screen message font-resolution selector 16, 1A generates a digital character signal to be displayed as the on-screen message (OSM) An on-screen message font-resolution setting unit 16 controls the on-screen message font-resolution selector 16, 1A to change the font resolution of the on-screen message depending on the display format of the record data.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: April 12, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Katsuyuki Takeuchi
  • Patent number: 6738562
    Abstract: In an optical disc playback apparatus OPP for reproducing data recorded on an optical disc Od and outputting an on-screen message (OSM) to be displayed in a predetermined number (10) of display lines, a reader 12, 13, 14, 15 reads out record data Si from a recording surface of the optical disc Od. An on-screen message generator 16, 1A generates a digital character signal sequence to be displayed as the on-screen message (OSM). An on-screen message lines controller 16; Ssw; #400 controls the on-screen message generator to change the number of display lines in which the on-screen is displayed, based on the record data.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: May 18, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Katsuyuki Takeuchi
  • Patent number: 6552474
    Abstract: A ceramic diaphragm structure includes a ceramic substrate having at least one window portion, and a thin ceramic diaphragm plate laminated so as to cover the window portion, wherein the ceramic diaphragm structure is unitarily formed so that the thin ceramic diaphragm portion is protruded in the direction opposite to the window portion, and a ceramic connecting layer connects the thin ceramic diaphragm plate to the ceramic substrate. The ceramic diaphragm structure has a high resonance frequency, an enhanced strength, an excellent quality and a high reliability.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: April 22, 2003
    Assignee: NGK Insulators, Ltd.
    Inventors: Yukihisa Takeuchi, Tsutomu Nanataki, Katsuyuki Takeuchi