Patents by Inventor Shinji Yamaguchi

Shinji Yamaguchi 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: 7656589
    Abstract: An object is to provide: a zoom lens system that has a reduced overall length, a high resolution, and a variable magnification ratio as high as 9 or greater and that is satisfactorily adaptable for wide-angle image taking where the view angle at a wide-angle limit is 70° or greater; an imaging device employing this zoom lens system; and a thin and compact camera. The zoom lens system has a plurality of lens units each consisting of at least one lens element, and, in order from the object side to the image side, comprises a first lens unit having positive optical power, a second lens unit having negative optical power, a third lens unit having positive optical power, a fourth lens unit and a fifth lens unit. In zooming from a wide-angle limit to a telephoto limit at the time of image taking, at least the first lens unit and the second lens unit move in an optical axis direction, while the fourth lens unit and the fifth lens unit each consists of one lens element.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: February 2, 2010
    Assignee: Panasonic Corporation
    Inventors: Takakazu Bito, Keiki Yoshitsugu, Shinji Yamaguchi
  • Publication number: 20090246453
    Abstract: A honeycomb structure includes: a porous substrate having porous partition walls separating and forming a plurality of cells functioning as fluid passages, a porous coat layer disposed on a surface of the partition walls to inhibit microparticles from entering, a surface of the coat layer having an uneven shape to increase a surface area, and plugging portions for plugging cells so that a fluid flowing into the structure from an opening portions on one end side of predetermined cells may pass through the partition walls and flows out from opening portions on the other side of the other cells to allow the gas to flow through the partition walls and the coat layers. The honeycomb structure can inhibit the pressure loss from increasing upon trapping particulate matter in exhaust gas and can effectively combust and remove the trapped particulate matter.
    Type: Application
    Filed: March 18, 2009
    Publication date: October 1, 2009
    Applicant: NGK INSULATORS, LTD.
    Inventor: Shinji YAMAGUCHI
  • Publication number: 20090239029
    Abstract: Provided is a honeycomb structure that is divided by a porous partition wall 3, as well as that is formed of a plurality of cells 5 acting as a through channel of a fluid. An insertion hole 9 in which a sensor can be inserted is formed in an end face of the honeycomb structure, and a breakage prevention means 17 is provided on an inner circumference or in the proximity of the insertion hole. According to this honeycomb structure, it is possible to provide a honeycomb structure or a honeycomb filter in which a temperature, an oxygen concentration and the like of the honeycomb structure can be directly measured; a temperature control of the honeycomb structure, being a base member can be easily made, and various sensors in accordance with applications of OBD measurement, measurement of an oxygen concentration, an NOx concentration and the like can be attached; and further, canning is easy to be conducted, and the durability of various attached sensors can be improved.
    Type: Application
    Filed: March 17, 2009
    Publication date: September 24, 2009
    Applicant: NGK INSULATORS, LTD.
    Inventor: Shinji YAMAGUCHI
  • Patent number: 7579732
    Abstract: An insulating motor housing includes first to fourth power supply elements stacked in their thickness direction to be spaced and insulated from each other and integrated with a housing body by insert molding. A power source connector using power source terminals of the second to fourth power supply elements as connector terminals is also integrated with the housing body.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: August 25, 2009
    Assignees: Mitsubishi Cable Industries, Ltd., Mitsubishi Electric Corporation
    Inventors: Shinji Yamaguchi, Yoshikazu Tanaka, Masafumi Sugawara, Hiroyuki Kinugawa
  • Patent number: 7499582
    Abstract: There is disclosed a method for inspecting a defect in a photomask which is produced by using a graphic data, that matches mask data or is produced by subjecting mask data to correction of a process conversion difference relating to at least a line width. The method includes the following steps. Inspection data is produced by correcting a pattern of mask data so as to substantially match a planar shape of a pattern of a photomask to be produced by using the graphic data. A pattern of a produced photomask is compared with a pattern of the inspection data. Portions where planar shapes of the pattern of the inspection data and the pattern of the produced photomask do not match are extracted. A defect is distinguished from the portions where the planer shapes do not match.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: March 3, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Toshiya Kotani, Suigen Kyoh, Shinji Yamaguchi, Soichi Inoue
  • Publication number: 20080320434
    Abstract: A photomask is washed and at least one physical amount of transmittance and phase difference of the photomask, dimension of a pattern, height of the pattern and a sidewall shape of the pattern is measured. After this, the two-dimensional shape of a borderline pattern previously determined for the photomask is measured. Lithography tolerance is derived by performing a lithography simulation for the measured two-dimensional shape by use of the measured physical amount. Then, whether the photomask can be used or not is determined based on the derived lithography tolerance.
    Type: Application
    Filed: April 30, 2008
    Publication date: December 25, 2008
    Inventors: Hidefumi MUKAI, Shinji Yamaguchi, Yukiyasu Arisawa, Toshiya Kotani
  • Patent number: 7449134
    Abstract: Noble crystal of 4-dimethylamino-4-stilbazolium tosylate (DAST) useful as an electro-optical element. A DAST crystal having a size effective for use as an electro-optical element is provided by a twin crystal of DAST. The twin crystal of DAST can be obtained according to a seed crystallization method or a slope crystal growing method.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: November 11, 2008
    Assignees: Daiichi Pure Chemicals Co., Ltd., Daiichi Pharmaceutical Co., Ltd.
    Inventors: Atsushi Izumi, Yuta Ochiai, Shinsuke Umegaki, Tomo Iwamura, Makoto Suzuki, Hidetaka Sakurai, Shinji Yamaguchi
  • Publication number: 20080252992
    Abstract: An object is to provide: a zoom lens system that has a reduced overall length, a high resolution, and a variable magnification ratio as high as 9 or greater and that is satisfactorily adaptable for wide-angle image taking where the view angle at a wide-angle limit is 70° or greater; an imaging device employing this zoom lens system; and a thin and compact camera. The zoom lens system has a plurality of lens units each composed of at least one lens element, and, in order from the object side to the image side, comprises a first lens unit having positive optical power, a second lens unit having negative optical power, a third lens unit having positive optical power, a fourth lens unit and a fifth lens unit. In zooming from a wide-angle limit to a telephoto limit at the time of image taking, at least the first lens unit and the second lens unit move in an optical axis direction, while the fourth lens unit and the fifth lens unit are each composed of one lens element.
    Type: Application
    Filed: January 22, 2008
    Publication date: October 16, 2008
    Inventors: Takakazu BITO, Keiki YOSHITSUGU, Shinji YAMAGUCHI
  • Patent number: 7434704
    Abstract: A medicine feeder is composed of: a cassette (2) for housing medicines D in an array; a biasing member (6) for biasing the medicines D in the cassette (2) toward one end side; and a discharge member (16) disposed on one end portion of the cassette (2) for holding a medicine D in a holding recess portion (18) and discharging the medicines D one at a time by rotating the discharge member. This makes it possible to ensure the discharge of a prescribed quantity of medicines based on prescription data.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: October 14, 2008
    Assignee: Yuyama Mfg. Co., Ltd.
    Inventors: Shoji Yuyama, Shinji Yamaguchi
  • Publication number: 20080232671
    Abstract: A mask pattern verifying method include obtaining first information about a hot spot from design data of a mask pattern, obtaining second information about the mask pattern actually formed on a photo mask, and determining a measuring spot of the mask pattern actually formed on the photo mask, based on the first and second information.
    Type: Application
    Filed: March 20, 2008
    Publication date: September 25, 2008
    Inventors: Mitsuyo ASANO, Shinji Yamaguchi, Satoshi Tanaka, Soichi Inoue, Masamitsu Itoh, Osamu Ikenaga
  • Patent number: 7393509
    Abstract: The present invention provides a honeycomb structure 1 comprising partition walls 2 so as to form a plurality of cells 3 extending from one end face 42 to the other end face 44, and a plug portion 4 plugging the cell 3 at the end face 42 and/or 44. In the honeycomb structure 1, the plug portion 4 has a hollow and convex shape, and at least a part of the plug portion 4 is protruding from the end face.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: July 1, 2008
    Assignee: NGK Insulators, Ltd.
    Inventor: Shinji Yamaguchi
  • Patent number: 7393233
    Abstract: In an electrical connector assembly, housings are locked with each other by locking a rear holder provided in a first connector with a cooperating second connector. In a rear holder main body 52 of a rear holder 51 there are formed a plurality of resilient clamping lances 53 which clamp connection terminals 67 inserted into respective terminal receiving holes 62 formed in a housing main body 61. At a middle upper portion of the rear holder 51 there is provided a resilient locking arm 54, and a locking claw 55 is formed on the locking arm. When the housing main body 61 is inserted into a housing main body 71 of a cooperating connector, connection terminals 67 and 72 are coupled with each other. The locking claw 55 provided on the locking arm 54 of the rear holder 51 is engaged with a locking portion 73 of the housing main body 71 of the cooperating second connector.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: July 1, 2008
    Assignees: FCI, Mitsubishi Cable Industries, Ltd.
    Inventors: Yukifumi Machida, Shinji Yamaguchi, Yoshikazu Tanaka, Makoto Enari, Tetsu Hirose
  • Publication number: 20080150377
    Abstract: An insulating motor housing includes first to fourth power supply elements stacked in their thickness direction to be spaced and insulated from each other and integrated with a housing body by insert molding. A power source connector using power source terminals of the second to fourth power supply elements as connector terminals is also integrated with the housing body.
    Type: Application
    Filed: November 29, 2007
    Publication date: June 26, 2008
    Applicants: MITSUBISHI CABLE INDUSTRIES, LTD., MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shinji YAMAGUCHI, Yoshikazu TANAKA, Masafumi SUGAWARA, Hiroyuki KINUGAWA
  • Patent number: 7388716
    Abstract: A variable magnification optical system for forming an optical image of an object onto a light acceptance surface of an image sensor, has in order from an object side: a first lens group having negative optical power; a second lens group having positive optical power; and a third lens group having positive optical power, the third lens group including at least two lenses. In magnification change from a wide-angle limit to a telephoto limit, the first lens group moves along a locus convex to an image side, the second lens group moves monotonically to the object side, and the third lens group moves along a locus convex to the object side.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: June 17, 2008
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Shinji Yamaguchi, Tetsuo Kohno, Genta Yagyu
  • Patent number: 7385685
    Abstract: A position detecting device includes: a liquid having a free surface; a light source configured to irradiate a light flux toward the free surface of the liquid; a dark field pattern provided between the liquid and the light source and configured to form a pattern of the light flux irradiated by the light source; a light-receiving sensor configured to detect the pattern of the light flux reflected by the free surface of the liquid; and an arithmetic unit configured to calculate a position of the pattern from results of detection of the light-receiving sensor, add the results of the detection of the light-receiving sensor in an X-direction and a Y-direction of the light-receiving sensor, and calculate the position of the pattern from an output obtained by adding the results of the detection in the X-direction and the Y-direction.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: June 10, 2008
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Kaoru Kumagai, Shinji Yamaguchi
  • Patent number: 7382548
    Abstract: A variable magnification optical system of the present invention for forming an optical image of an object on a light-receiving surface of an image sensor with variable magnification includes: from the object side, at least a first lens unit having a positive optical power, a second lens unit having a negative optical power, a third lens unit having a positive optical power, and a fourth lens unit having a positive optical power. The variable magnification is performed by movement of at least the first lens unit and the third lens unit. A bending optical element for bending an optical axis is provided between the second lens unit and the third lens unit. Moreover, prescribed conditional formulae are fulfilled.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: June 3, 2008
    Assignee: Konica Minolta Photo Imaging, Inc.
    Inventors: Tetsuo Kohno, Genta Yagyu, Shinji Yamaguchi
  • Patent number: 7375900
    Abstract: An object of the present invention is to provide a compact size variable power optical system capable of producing a high quality image. The variable power optical system comprises a plurality of lens groups for forming an optical image on an image surface of an image pickup device. Among the plurality of lens groups, the first lens group, which is disposed in the most subject side has a negative refraction power, includes at least a lens having a negative refraction power and a reflective optical element for bending the optical axis. When varying the variable power, the axial distance between the first lens group and the image surface varies. When Nd denotes the refraction power of the lens having negative refraction power at d-line, the refraction power satisfies the conditional formula Nd>1.81.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: May 20, 2008
    Assignee: Konica Minolta Photo Imaging, Inc.
    Inventors: Genta Yagyu, Tetsuo Kohno, Shinji Yamaguchi
  • Patent number: 7369326
    Abstract: A compact bent zooming imaging optical system characterized by sufficient aberration correction. The imagining optical system contains, in order from the object, a first lens group having positive refractive power, a second lens group with negative power which has a reflective optical element for bending the optical axis and lenses on each of the object side and the image side of the reflective optical element, and a following lens group. At least the aforementioned first lens group and following lens group are moved to change in the magnification. ?0.6<?1/?2<?0.15 is satisfied wherein ?1 denotes the refractive power of the first lens group and ?2 indicates the refractive power of the second lens group.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: May 6, 2008
    Assignee: Konica Minolta Photot Imaging, Inc.
    Inventors: Genta Yagyu, Tetsuo Kohno, Shinji Yamaguchi
  • Patent number: D578485
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: October 14, 2008
    Assignee: Mitsubishi Cable Industries Ltd.
    Inventors: Satoshi Uramatsu, Shinji Yamaguchi, Yoshikazu Tanaka, Tetsu Hirose, Naohito Sasaki
  • Patent number: D578486
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: October 14, 2008
    Assignee: Mitsubishi Cable Industries Ltd.
    Inventors: Satoshi Uramatsu, Shinji Yamaguchi, Yoshikazu Tanaka, Tetsu Hirose, Naohito Sasaki