Patents by Inventor Akihiro Ito

Akihiro Ito 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: 20090202832
    Abstract: An epoxy resin composition suitably used for a prepreg which can complete curing in a short time even at a low temperature and secure a sufficient usable period under preservation at room temperature, in comparison with conventional epoxy resin compositions. An epoxy resin composition comprising at least one of an epoxy resin, an amine compound having at least one sulfur atom in the molecule thereof, and a reaction product of an epoxy resin and an amine compound having at least one sulfur atom in the molecule thereof, and an amine compound having at least one sulfur atom in the molecule thereof, and a urea compound and a dicyandiamide, wherein each of the contents of the sulfur atom and the urea compound in the epoxy resin composition is respectively 0.2 to 7% by mass and 1 to 15% by mass.
    Type: Application
    Filed: March 27, 2008
    Publication date: August 13, 2009
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Tsuneo Takano, Akitada Yanase, Tadashi Sakai, Kiharu Numata, Akihiro Ito, Masato Taguchi, Junichi Muramatsu, Kazuya Goto, Kazuki Koga
  • Publication number: 20090180773
    Abstract: An electromagnetic actuator includes; a coil for excitation; a stator excited with different magnetic poles by energization of the coil; a rotor magnetized with different magnetic poles in a circumferential direction thereof, and rotated by a magnetic force generated between the rotor and the stator; and an outputting member rotated in conjunction with the rotor and outputting rotational movement of the rotor to a first blade and a second blade. The rotor and the outputting member are jointed by welding and a welding portion of the rotor lies in a boundary of the magnetic poles thereof.
    Type: Application
    Filed: March 20, 2009
    Publication date: July 16, 2009
    Applicant: SEIKO PRECISION INC.
    Inventors: Akira YASUDA, Shuichi Kawaguchi, Akihiro Ito, Mikishige Sugasa, Shigeru Yanagisawa
  • Publication number: 20090148154
    Abstract: In a shutter drive device for a camera, the device including: a plate having an aperture; a shutter blade provided in the plate, and for opening and closing the aperture; and an driving source provided in the plate, and for driving the shutter blade. The driving source includes: a rotor magnetized with plural magnetic poles in a circumferential direction, and rotatable about an axis thereof; a stator generating magnetic force against the rotor; and a coil provided in the stator and for exciting the stator. The rotor has an arm portion extending outwardly in a direction perpendicular to the axis of the rotor, and a pin portion engaging with the shutter blade and provided in the arm portion to stand. The rotor, the arm portion and the pin portion are disposed within a thickness of the coil in the axis direction.
    Type: Application
    Filed: February 4, 2009
    Publication date: June 11, 2009
    Applicant: SEIKO PRECISION INC.
    Inventors: Mitsuru SUZUKI, Akihiro Ito
  • Publication number: 20090123717
    Abstract: An FRP is produced using a prepreg comprising reinforcing fiber, a sheet-like reinforcing fiber substrate containing reinforcing fiber, and a matrix resin, wherein the matrix resin is impregnated into the sheet-like reinforcing fiber substrate and also covers one surface of the sheet-like reinforcing fiber substrate, and the matrix resin impregnation ratio is within a range of 35% to 95%; a prepreg comprising reinforcing fiber, a sheet-like reinforcing fiber substrate containing reinforcing fiber, and a matrix resin, wherein the matrix resin exists on both surfaces of the sheet-like reinforcing fiber substrate, and the portion inside the sheet-like reinforcing fiber substrate into which the matrix resin has not been impregnated is continuous; or a prepreg comprising reinforcing fiber, a sheet-like reinforcing fiber substrate containing reinforcing fiber, and a matrix resin, wherein at least one surface exhibits a sea-and-island-type pattern comprising resin-impregnated portions (island portions) where the mat
    Type: Application
    Filed: October 2, 2008
    Publication date: May 14, 2009
    Applicant: Mitsubishi Rayon co., Ltd.
    Inventors: Kazuya Goto, Kazuki Koga, Tadayoshi Saitou, Akihiro Ito, Tsuneo Takano, Kouki Wakabayashi
  • Publication number: 20090111924
    Abstract: A prepreg is provided capable of being a composite material having suitable high heat resistance, impact resistance, and mechanical properties under high temperature and high humidity conditions. As the matrix resin, a composition including a specific epoxy resin component (A), a specific bifunctional epoxy resin (B), a specific tetrafunctional epoxy resin (C), and a specific aromatic amine compound (D) at specific proportions are used. Particularly, as the epoxy resin component (A), one obtained by mixing and heating a bifunctional epoxy resin (a1), a trifunctional epoxy resin (a2), a phenol compound (a3), and a specific polyamide resin (a4) is used so as to be able to solve the above-described problems.
    Type: Application
    Filed: July 12, 2006
    Publication date: April 30, 2009
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Akihiro Ito, Tadayoshi Saitou, Ietsugu Santo, Junichi Muramatsu, Yasuo Takagi, Kiharu Numata, Yasuhiro Fukuhara, Mina Oobayashi
  • Publication number: 20090045366
    Abstract: The invention has been made to provide a flow control valve capable of preventing adhesion between a fixed core and a movable core and increasing an attractive force, so that flow control can be performed with high accuracy. In a flow control valve 10, a first fixed core 23a is fixed in an upper part of a coil bobbin 21, a second fixed core 23b is fixed in a lower part of the coil bobbin 21, and the movable core 24 is formed at its lower end with a flange 24a having a diameter larger than an inner diameter of the coil bobbin 21. The movable core 24 is placed inside a cylindrical part 28a of the flared pipe 28 so that a distance D1 between the first fixed core 23a and the movable core 24 is larger than a distance D2 between the flange 24a and a disc part 28b of the flared pipe 28.
    Type: Application
    Filed: June 20, 2006
    Publication date: February 19, 2009
    Inventors: Akihiro Ito, Naotsugu Seko, Yoshihiro Matsuoka, Manami Niwa
  • Patent number: 7491167
    Abstract: An image capturing unit for an electronic endoscope, includes an image capturing element with an image capturing area, at least one bonding wire, which is extended curvedly and outwardly from at least one edge portion of a surface of the image capturing element to at least one conductor, and a transparent cover plate, which is fixed to a frame and is adapted to seal the image capturing element from an external environment. The cover plate is formed to have at least one bonding wire preventing portion, which is adapted to prevent the at least one bonding wire from being in contact with the cover plate. An edge portion on a front surface of the cover plate is hermetically sealed to the frame.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: February 17, 2009
    Assignee: Hoya Corporation
    Inventors: Takayuki Ogino, Kazuyuki Yamamoto, Akihiro Ito, Seiichiro Okamura, Tomokazu Yamashita
  • Publication number: 20080278736
    Abstract: An image processing apparatus includes a first print information receiving unit for receiving first print information including image data and color information, a color conversion parameter generating unit that generates a color conversion parameter for converting a color signal of the image data to a color signal of a color space fixed in advance, based on the color information included in the first print information, and a second print information transmitting unit that generates second print information by adding the color conversion parameter to the first print information. Also disclosed is an image processing method.
    Type: Application
    Filed: March 7, 2008
    Publication date: November 13, 2008
    Applicant: Fuji Xerox Co. Ltd.
    Inventors: Hidetoshi KAWASHIMA, Akihiro Ito, Yuichi Nishikuni, Toshio Koriyama, Toshie Kobiyama
  • Publication number: 20080259371
    Abstract: There is provided an image file creation device including: an obtaining section that obtains image data forming a color image, conversion conditions for converting the image data into color data of a device-independent color space, and basic viewing conditions for viewing the color image; an input section that inputs target viewing conditions for viewing a formed image that is formed by using the image data; and a creation section that creates an image file containing a main data region for storing the image data, the conversion conditions and the basic viewing conditions, and a sub-data region for storing the target viewing conditions.
    Type: Application
    Filed: April 15, 2008
    Publication date: October 23, 2008
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Akihiro ITO, Ryosuke HIGASHIKATA, Yasunari KISHIMOTO, Yasuki YAMAUCHI, Noriko HASEGAWA, Hidetoshi KAWASHIMA, Kiyoshi UNE, Toshihiro IWAFUCHI, Jungo HARIGAI
  • Publication number: 20080248204
    Abstract: The present invention relates to a prepreg which is free from the phenomenon that air is trapped between layers to generate voids, has good handling characteristics and can produce molded articles having any complicated shape and also relates to a method of producing the prepreg. A reinforced-fiber sheet is impregnated with a matrix resin so as to form a continuous resin layer at least in the inside thereof, and then, a protective film having an irregular surface is applied to at least one surface of the reinforced-fiber sheet impregnated with the matrix resin such that the irregular surface faces the reinforced-fiber sheet. In this state, the prepreg is allowed to leave at 30 to 60° C. under the atmosphere for 12 hours or more.
    Type: Application
    Filed: June 13, 2008
    Publication date: October 9, 2008
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Shirou Asada, Hisao Koba, Akihiro Ito, Kazutami Mitani, Kimihiro Ikezaki, Koki Wakabayashi
  • Publication number: 20080240707
    Abstract: An actuator includes: a coil for excitation; a stator excited with different magnetic poles by energization of the coil; a rotor magnetized with different magnetic poles in a circumferential direction, and rotated by magnetic force generating between the rotor and the stator; and an outputting member rotated in conjunction with the rotor and outputting rotational movement of the rotor to a member. The outputting member fits onto the rotor, and the rotor has at least one of a recess portion and a projection portion at a fitting surface of the rotor. The outputting member is jointed with the rotor so as to have a shape corresponding to the at least one of the recess portion and the projection portion by welding.
    Type: Application
    Filed: March 27, 2008
    Publication date: October 2, 2008
    Applicant: SEIKO PRECISION INC.
    Inventors: Akira Yasuda, Akihiro Ito, Masato Tanaka
  • Publication number: 20080204775
    Abstract: In an image processing apparatus, a first conversion unit converts, on the basis of an input device profile, input data into first device-independent data expressed by a color space that is independent of an apparatus. A storage unit stores plural conversion profiles for converting using a color appearance model in the color space that is independent of the apparatus in correspondence with plural device characteristics that are dependent on apparatuses. A selection unit selects a conversion profile corresponding to characteristics of the input device, characteristics of an output device, observation conditions of the input data and the output data. A second conversion unit converts, on basis of the selected conversion profile, the first device-independent data into second device-independent data. A third conversion unit converts the second device-independent data into the output data on the basis of an output device profile.
    Type: Application
    Filed: January 29, 2008
    Publication date: August 28, 2008
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hidetoshi KAWASHIMA, Yasunari KISHIMOTO, Ryosuke HIGASHIKATA, Yasuki YAMAUCHI, Akihiro ITO, Noriko HASEGAWA, Yousuke TASHIRO, Kiyoshi UNE
  • Publication number: 20080185753
    Abstract: An epoxy resin composition suitably used for a prepreg which can complete curing in a short time even at a low temperature and secure a sufficient usable period under preservation at room temperature, in comparison with conventional epoxy resin compositions. An epoxy resin composition comprising at least one of an epoxy resin, an amine compound having at least one sulfur atom in the molecule thereof, and a reaction product of an epoxy resin and an amine compound having at least one sulfur atom in the molecule thereof, and an amine compound having at least one sulfur atom in the molecule thereof, and a urea compound and a dicyandiamide, wherein each of the contents of the sulfur atom and the urea compound in the epoxy resin composition is respectively 0.2 to 7% by mass and 1 to 15% by mass.
    Type: Application
    Filed: March 27, 2008
    Publication date: August 7, 2008
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Tsuneo Takano, Akitada Yanase, Tadashi Sakai, Kiharu Numata, Akihiro Ito, Masato Taguchi, Junichi Muramatsu, Kazuya Goto, Kazuki Koga
  • Publication number: 20080185757
    Abstract: An epoxy resin composition suitably used for a prepreg which can complete curing in a short time even at a low temperature and secure a sufficient usable period under preservation at room temperature, in comparison with conventional epoxy resin compositions. An epoxy resin composition comprising at least one of an epoxy resin, an amine compound having at least one sulfur atom in the molecule thereof, and a reaction product of an epoxy resin and an amine compound having at least one sulfur atom in the molecule thereof, and an amine compound having at least one sulfur atom in the molecule thereof, and a urea compound and a dicyandiamide, wherein each of the contents of the sulfur atom and the urea compound in the epoxy resin composition is respectively 0.2 to 7% by mass and 1 to 15% by mass.
    Type: Application
    Filed: March 27, 2008
    Publication date: August 7, 2008
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Tsuneo Takano, Akitada Yanase, Tadashi Sakai, Kiharu Numata, Akihiro Ito, Masato Taguchi, Junichi Muramatsu, Kazuya Goto, Kazuki Koga
  • Publication number: 20080187718
    Abstract: An epoxy resin composition suitably used for a prepreg which can complete curing in a short time even at a low temperature and secure a sufficient usable period under preservation at room temperature, in comparison with conventional epoxy resin compositions. An epoxy resin composition comprising at least one of an epoxy resin, an amine compound having at least one sulfur atom in the molecule thereof, and a reaction product of an epoxy resin and an amine compound having at least one sulfur atom in the molecule thereof, and an amine compound having at least one sulfur atom in the molecule thereof, and a urea compound and a dicyandiamide, wherein each of the contents of the sulfur atom and the urea compound in the epoxy resin composition is respectively 0.2 to 7% by mass and 1 to 15% by mass.
    Type: Application
    Filed: March 27, 2008
    Publication date: August 7, 2008
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Tsuneo Takano, Akitada Yanase, Tadashi Sakai, Kiharu Numata, Akihiro Ito, Masato Taguchi, Junichi Muramatsu, Kazuya Goto, Kazuki Koga
  • Publication number: 20080170779
    Abstract: A color conversion device is provided including: a setting unit that sets a conversion mode, based on characteristics of a source color region related to an input image signal in a color space, for converting the input image signal to an image signal that falls within at least one color region from a plurality of color regions that have been defined in the color space; and a conversion unit that converts the input image signal in accordance with the conversion mode into the image signal that falls within the color region.
    Type: Application
    Filed: January 9, 2008
    Publication date: July 17, 2008
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Noriko HASEGAWA, Yasunari KISHIMOTO, Yasuki YAMAUCHI, Hidetoshi KAWASHIMA, Kiyoshi UNE, Akihiro ITO, Ryosuke HIGASHIKATA, Yousuke TASHIRO
  • Publication number: 20080166085
    Abstract: A receptacle type semiconductor laser module (TOSA) includes a semiconductor laser, a lens, and a fiber stub. The fiber stub has a slantwise cut surface to which a emission light emitted from the semiconductor laser and passing through the lens is incident. The cut surface is arranged in a position deviated from the focus of the lens in the direction of the optical axis of the fiber stub. The semiconductor laser module further includes a fixed optical attenuator arranged on a path of an emission light of the semiconductor laser and having an incident surface being oblique to an optical axis of the semiconductor laser. By such a configuration, a coupling fluctuation caused by an eccentricity of the optical fiber cord connected to the fiber stub and a near-end reflection can be suppressed.
    Type: Application
    Filed: December 31, 2007
    Publication date: July 10, 2008
    Applicant: NEC ELECTRONICS CORPORATION
    Inventors: Akihiro Ito, Yusuke Kurihara, Junichi Shimizu, Hideyuki Yamada
  • Publication number: 20080107332
    Abstract: An image processing apparatus includes a storage unit, a judgment unit and a conversion unit. The storage unit stores a reference color characteristic. The judgment unit judges as to whether or not a difference between an input color characteristic that is a color characteristic of input image data and the reference color characteristic is equal to or less than a predetermined threshold value. The conversion unit converts the input image data into a color characteristic that can be reproduced by an image reproducing apparatus, based on the reference color characteristic if the difference is equal to or less than the predetermined threshold value.
    Type: Application
    Filed: November 6, 2007
    Publication date: May 8, 2008
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yuichi NISHIKUNI, Akihiro ITO, Hidetoshi KAWASHIMA, Toshio KORIYAMA, Toshie KOBIYAMA, Kiyoshi UNE
  • Patent number: 7358629
    Abstract: The rotational torque of an electromagnetic actuator having a stator and rotor, such as a stepping motor, is increased. The electromagnetic actuator includes a rotor (30) having multiple magnetic poles (Nr1, Nr2, Nr3, Nr4, Nr5, Sr1, Sr2, Sr3, Sr4, Sr5) on a circumferential surface (31) and a plurality of stators (10, 20) in an electromagnet form. The stator (10, 20) has a pair of magnetic poles (13, 14, 23, 24) facing the circumferential surface (31) of the rotor (30), and an auxiliary yoke (40, 50) made of a soft magnetic material member extending in a circumferential direction (A) over an angular range (?1, ?2) larger than a spread angle (?) of the magnetic poles (Nr, Sr) of the rotor (30) in the circumferential direction (A) is provided between the pair of magnetic poles (13, 14, 23, 24).
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: April 15, 2008
    Assignee: Seiko Precision Inc.
    Inventors: Masami Yamamoto, Akihiro Ito, Masato Tanaka, Shinji Morinaga, Tetsuya Iwamoto
  • Publication number: 20070279714
    Abstract: A color conversion device for color-converting an input image signal in an input color reproduction region of a source device, in a predetermined color space, by mapping the input image signal into an output color reproduction region of a destination device in the predetermined color space, comprising: a calculation portion for calculating a mapping destination in the output color reproduction region of a pre-specified characteristic point in the input color reproduction region; a correction portion for correcting the output color reproduction region such that a region including a saturation higher than the calculated mapping destination is eliminated; and a mapping portion for mapping the input image signal into the corrected output color reproduction region, is provided.
    Type: Application
    Filed: December 26, 2006
    Publication date: December 6, 2007
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Ryosuke Higashikata, Akihiro Ito, Yasunari Kishimoto, Tomoko Taguchi