Patents by Inventor Kenji Oka

Kenji Oka 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: 20100264443
    Abstract: A semiconductor light emitting device having high reliability and excellent light distribution characteristics is provided. Specifically, a semiconductor light emitting device 1 is provided with an n-electrode 50, which is arranged on a light extraction surface on the side opposite to the surface whereupon a semiconductor stack 40 is mounted on a substrate 10. A plurality of convexes are arranged on a first convex region 80 and a second convex region 90 on the light extraction surface. The second convex region 90 adjoins to the interface between the n-electrode 50 and the semiconductor stack 40, between the first convex region 80 and the n-electrode 50.
    Type: Application
    Filed: December 26, 2008
    Publication date: October 21, 2010
    Applicant: NICHIA CORPORATION
    Inventors: Yohei Wakai, Hiroaki Matsumura, Kenji Oka
  • Publication number: 20100259750
    Abstract: An appearance inspection apparatus analyzes a difference in detection characteristics of detection signals obtained by detectors to flexibly meet various inspection purposes without changing a circuit or software. The apparatus includes a signal synthesizing section that synthesizes detection signals from the detectors in accordance with a set condition. An input operating section sets a synthesizing condition of the detection signal by the signal synthesizing section, and an information display section displays a synthesizing map structured based on a synthesized signal which is synthesized by the signal synthesizing section in accordance with a condition set by the input operating section.
    Type: Application
    Filed: June 25, 2010
    Publication date: October 14, 2010
    Applicant: Hitachi High-Technologies Corporation
    Inventors: Kenji OKA, Shigeru MATSUI
  • Patent number: 7786036
    Abstract: A dielectric ceramic composition containing at least 0.15 to 2.5 mol of a Mg compound in terms of MgO, 0 to 1.6 mol of a Ba compound in terms of BaCO3, 0.1 to 3.0 mol of a Ln (Ln includes two or three kinds of elements selected from Er, Dy, and Ho with Er being essential) compound in terms of Ln2O3, 0.01 to 0.4 mol of a Mn compound in terms of MnO4/3, 0.01 to 0.26 mol of a V compound in terms of V2O5, 0.3 to 3.5 mol of a Si compound in terms of SiO2, and 0.01 to 2.5 mol of an Al compound in terms of Al2O3 to 100 mol of barium titanate adjusted for a Ba/Ti molar ratio of 0.997 to 1.007.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: August 31, 2010
    Assignee: Panasonic Corporation
    Inventors: Kazuhiro Komatsu, Kazuki Hirata, Atsuo Nagai, Tadashi Onomi, Kenji Oka
  • Patent number: 7773210
    Abstract: An appearance inspection apparatus analyzes a difference in detection characteristics of detection signals obtained by detectors to flexibly meet various inspection purposes without changing a circuit or software. The apparatus includes a signal synthesizing section that synthesizes detection signals from the detectors in accordance with a set condition. An input operating section sets a synthesizing condition of the detection signal by the signal synthesizing section, and an information display section displays a synthesizing map structured based on a synthesized signal which is synthesized by the signal synthesizing section in accordance with a condition set by the input operating section.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: August 10, 2010
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Kenji Oka, Shigeru Matsui
  • Publication number: 20100140474
    Abstract: A method and apparatus of inspecting a sample, in which the sample is inspected under a plurality of inspection conditions, and inspection data obtained by inspecting the sample under each of the plurality of inspection conditions and position information on the sample of the inspection date in correspondence with the respective inspection conditions, are stored. The inspection data for each of the plurality of inspection conditions is against each other by the use of the position information on the sample to determine a position to be inspected in detail, and an image of the sample at a position to be inspected in detail is obtained. The obtained image is classified, the inspection condition of the sample by the use of information of classification of the image is determined.
    Type: Application
    Filed: January 5, 2010
    Publication date: June 10, 2010
    Inventors: Akira HAMAMATSU, Minori Noguchi, Yoshimasa Ohshima, Hidetoshi Nishiyama, Kenji Oka, Takanori Ninomya, Maki Tanaka, Kenji Watanabe, Tetsuya Watanabe, Yoshio Morishige
  • Patent number: 7729516
    Abstract: An image size changing section obtains a size changed image by changing the size of one of two original images captured by a pair of cameras. If an edge of an object has many oblique components, the edge is difficult to detect as a vertical edge but, when the image is horizontally reduced, an oblique edge becomes close to a vertical edge. For this reason, feature end points are extracted with reliability by a feature extracting section and, thereby, an object is recognized and the distance to the object is determined reliably.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: June 1, 2010
    Assignee: Fujitsu Ten Limited
    Inventors: Nobukazu Shima, Akihiro Oota, Kenji Oka
  • Patent number: 7643138
    Abstract: A method and apparatus of inspecting a sample, in which the sample is inspected under a plurality of inspection conditions, and inspection data obtained by inspecting the sample under each of the plurality of inspection conditions and position information on the sample of the inspection date in correspondence with the respective inspection conditions, are stored. The inspection data for each of the plurality of inspection conditions is against each other by the use of the position information on the sample to determine a position to be inspected in detail, and an image of the sample at a position to be inspected in detail is obtained. The obtained image is classified, the inspection condition of the sample by the use of information of classification of the image is determined.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: January 5, 2010
    Assignees: Hitachi, Ltd., Hitachi High-Technologies Corporation
    Inventors: Akira Hamamatsu, Minori Noguchi, Yoshimasa Ohshima, Hidetoshi Nishiyama, Kenji Oka, Takanori Ninomiya, Maki Tanaka, Kenji Watanabe, Tetsuya Watanabe, Yoshio Morishige
  • Patent number: 7612706
    Abstract: An antenna unit includes at least one transmission antenna and plural reception antennas. A receiver detects information including azimuth information for a target, based on an output from the antenna unit. An antenna switching unit switches connections between a transmitter and the transmission antenna and between the reception antenna and the receiver. The antenna unit includes a wide-beam array antenna and plural narrow-beam array antennas having a narrower beam width than the array antenna. A monopulse process is performed based on an output of a predetermined pair of array antennas from among the array antennas formed as the narrow-beam array antennas.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: November 3, 2009
    Assignee: Fujitsu Ten Limited
    Inventors: Kanako Honda, Kenji Oka, Kimihisa Yoneda
  • Publication number: 20090244529
    Abstract: An appearance inspection apparatus analyzes a difference in detection characteristics of detection signals obtained by detectors to flexibly meet various inspection purposes without changing a circuit or software. The apparatus includes a signal synthesizing section that synthesizes detection signals from the detectors in accordance with a set condition. An input operating section sets a synthesizing condition of the detection signal by the signal synthesizing section, and an information display section displays a synthesizing map structured based on a synthesized signal which is synthesized by the signal synthesizing section in accordance with a condition set by the input operating section.
    Type: Application
    Filed: June 11, 2009
    Publication date: October 1, 2009
    Applicant: Hitachi High-Technologies Corporation
    Inventors: Kenji Oka, Shigeru Matsui
  • Publication number: 20090214102
    Abstract: A method of inspecting patterns, including: adjusting a brightness of at least one of a first bright field image and a second bright field image detected from a specimen and directed to similar patterns on differing parts of the specimen, so as to more closely match a brightness; comparing the images which are adjusted in brightness to match with each other to detect dissimilarities indicative of a defect of the pattern, wherein in adjusting the brightness, the brightness between the first bright field image and the second bright field image is adjusted by performing a gradation conversion of at least one of the brightness between the first bright field image and the second bright field image; and wherein in the comparing, said defect of the pattern is detected by using information of a scattered diagram of brightness of the first bright field image and the second bright field image.
    Type: Application
    Filed: January 26, 2009
    Publication date: August 27, 2009
    Inventors: Shunji Maeda, Kenji Oka, Yukihiro Shibata, Minoru Yoshida, Chie Shishido, Yuji Takagi, Atsushi Yoshida, Kazuo Yamaguchi
  • Patent number: 7557911
    Abstract: An appearance inspection apparatus analyzes a difference in detection characteristics of detection signals obtained by detectors to flexibly meet various inspection purposes without changing a circuit or software. The apparatus includes a signal synthesizing section that synthesizes detection signals from the detectors in accordance with a set condition. An input operating section sets a synthesizing condition of the detection signal by the signal synthesizing section, and an information display section displays a synthesizing map structured based on a synthesized signal which is synthesized by the signal synthesizing section in accordance with a condition set by the input operating section.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: July 7, 2009
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Kenji Oka, Shigeru Matsui
  • Publication number: 20090141264
    Abstract: A defect inspecting apparatus includes a sample mounting device for mounting a sample; lighting and detecting apparatus for illuminating a patterned sample mounted on a mount and detecting the optical image of the reflected light obtained therefrom. Also included is a display for displaying the optical image detected by this lighting and detecting apparatus; an optical parameter setting device for setting and displaying optical parameters for the lighting and detecting apparatus on the display; and optical parameter adjusting apparatus for adjusting optical parameters set for the lighting and detecting apparatus according to the optical parameters set by the optical parameter setting apparatus; a storage device for storing comparative image data; and a defect detecting device for detecting defects from patterns formed on the sample by comparing the optical image detected by the optical image detecting apparatus with the comparative image data stored in the storage.
    Type: Application
    Filed: February 2, 2009
    Publication date: June 4, 2009
    Applicant: Hitachi, Ltd.
    Inventors: Yukihiro Shibata, Shunji Maeda, Kazuo Yamaguchi, Minoru Yoshida, Atsushi Yoshida, Kenji Oka, Kenji Watanabe
  • Publication number: 20090102702
    Abstract: Disclosed is a method of bias adjustment for a millimeter wave radar apparatus that can efficiently and highly accurately adjust the bias of an MMIC used in a radio frequency circuit in the millimeter wave radar apparatus.
    Type: Application
    Filed: September 10, 2008
    Publication date: April 23, 2009
    Applicant: FUJITSU TEN LIMITED
    Inventors: Kenji Oka, Hiroshi Ito, Jun Ito
  • Patent number: 7512259
    Abstract: A method of inspecting patterns to detect a defect of the patterns by using information of a scattered diagram of brightness of said first and second images.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: March 31, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Shunji Maeda, Kenji Oka, Yukihiro Shibata, Minoru Yoshida, Chie Shishido, Yuji Takagi, Atsushi Yoshida, Kazuo Yamaguchi
  • Publication number: 20090062580
    Abstract: Disclosed is a method for producing a cyclic olefin compound having two or more cyclohexene rings per molecule via intramolecular dehydration of an alicyclic alcohol having two or more hydroxylated cyclohexane rings per molecule. The method includes the step (i) of heating the alicyclic alcohol at a temperature of 130° C. to 230° C. and a pressure greater than 20 Torr in an organic solvent in the presence of a dehydration catalyst, to carry out dehydration of the alicyclic alcohol while distilling off by-product water, which dehydration catalyst is liquid or soluble in a liquid reaction mixture under the reaction conditions; and the subsequent step (ii) of heating the resulting reaction mixture at a temperature of 50° C. to 220° C. and a pressure of 200 Torr or less to recover the cyclic olefin compound as a distillate.
    Type: Application
    Filed: April 11, 2007
    Publication date: March 5, 2009
    Inventors: Hideyuki Takai, Kenji Oka, Kyuhei Kitao
  • Patent number: 7499162
    Abstract: A defect inspecting apparatus includes a sample mounting device for mounting a sample; lighting and detecting apparatus for illuminating a patterned sample mounted on a mount and detecting the optical image of the reflected light obtained therefrom. Also included is a display for displaying the optical image detected by this lighting and detecting apparatus; an optical parameter setting device for setting and displaying optical parameters for the lighting and detecting apparatus on the display; and optical parameter adjusting apparatus for adjusting optical parameters set for the lighting and detecting apparatus according to the optical parameters set by the optical parameter setting apparatus; a storage device for storing comparative image data; and a defect detecting device for detecting defects from patterns formed on the sample by comparing the optical image detected by the optical image detecting apparatus with the comparative image data stored in the storage.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: March 3, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Yukihiro Shibata, Shunji Maeda, Kazuo Yamaguchi, Minoru Yoshida, Atsushi Yoshida, Kenji Oka, Kenji Watanabe
  • Patent number: 7460220
    Abstract: A method of inspecting a specimen, including: emitting a light from a lamp of a light source; illuminating a specimen on which plural patterns are formed with the light emitted from the light source and, passed through an objective lens; forming an optical image of the specimen by collecting light reflected from the specimen by the illuminating and passed through the objective lens and a image forming lens; detecting the optical image with a TDI image sensor; and processing a signal outputted from the TDI image sensor and detecting a defect of a pattern among the plural patterns formed on the specimen, wherein the image detected by the TDI image sensor is formed with light having a wavelength selected from the wavelengths of the light emitted from the light source.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: December 2, 2008
    Assignee: Renesas Technology Corporation
    Inventors: Shunji Maeda, Yasuhiko Nakayama, Minoru Yoshida, Hitoshi Kubota, Kenji Oka
  • Publication number: 20080291437
    Abstract: A method and apparatus of inspecting a sample, in which the sample is inspected under a plurality of inspection conditions, and inspection data obtained by inspecting the sample under each of the plurality of inspection conditions and position information on the sample of the inspection date in correspondence with the respective inspection conditions, are stored. The inspection data for each of the plurality of inspection conditions is against each other by the use of the position information on the sample to determine a position to be inspected in detail, and an image of the sample at a position to be inspected in detail is obtained. The obtained image is classified, the inspection condition of the sample by the use of information of classification of the image is determined.
    Type: Application
    Filed: July 30, 2008
    Publication date: November 27, 2008
    Inventors: Akira Hamamatsu, Minori Noguchi, Yoshimasa Ohshima, Hidetoshi Nishiyama, Kenji Oka, Takanori Ninomiya, Maki Tanaka, Kenji Watanabe, Tetsuya Watanabe, Yoshio Morishige
  • Publication number: 20080239291
    Abstract: An elevating drive mechanism and an advancing drive mechanism are controlled, by means of control processing of the start of photomultiplier tube idling, such that the vertical irradiation position of a laser beam falls on a reflective plate and, during idling, laser beam is irradiated via reflective plate on photodetectors, which are photomultiplier tubes. When idling has come to an end and the inspection start of the following wafer occurs, a diagnosis of photomultiplier tubes is carried out. In case, as a result of the diagnosis, it is determined that photomultiplier tubes have degraded, an alarm is given that the photomultiplier tubes have degraded.
    Type: Application
    Filed: March 27, 2008
    Publication date: October 2, 2008
    Inventors: Yasuhiro Miyanohara, Kenji Oka
  • Patent number: 7417723
    Abstract: A method and apparatus of inspecting a sample, in which the sample is inspected under a plurality of inspection conditions, and inspection data obtained by inspecting the sample under each of the plurality of inspection conditions and position information on the sample of the inspection date in correspondence with the respective inspection conditions, are stored. The inspection data for each of the plurality of inspection conditions is against each other by the use of the position information on the sample to determine a position to be inspected in detail, and an image of the sample at a position to be inspected in detail is obtained. The obtained image is classified, the inspection condition of the sample by the use of information of classification of the image is determined.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: August 26, 2008
    Assignees: Hitachi, Ltd., Hitachi High-Technologies Corporation
    Inventors: Akira Hamamatsu, Minori Noguchi, Yoshimasa Ohshima, Hidetoshi Nishiyama, Kenji Oka, Takanori Ninomiya, Maki Tanaka, Kenji Watanabe, Tetsuya Watanabe, Yoshio Morishige