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).
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Patent number: 8949043Abstract: While an illumination optical system is irradiating the surface of a contaminated standard wafer with illumination light, this illumination light is scanned over the surface of the contaminated standard wafer, then detectors of a detection optical system each detect the light scattered from the surface of the contaminated standard wafer, next a predefined reference value in addition to detection results on the scattered light is used to calculate a compensation parameter “Comp” for detection sensitivity correction of photomultiplier tubes of the detectors, and the compensation parameter “Comp” is separated into a time-varying deterioration parameter “P”, an optical characteristics parameter “Opt”, and a sensor characteristics parameter “Lr”, and correspondingly managed. This makes is easy to calibrate the detection sensitivity.Type: GrantFiled: February 2, 2010Date of Patent: February 3, 2015Assignee: Hitachi High-Technologies CorporationInventors: Kenji Oka, Kenji Mitomo, Kenichiro Komeda
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Publication number: 20140370630Abstract: A semiconductor light emitting device having high reliability and excellent light distribution characteristics can be provided with an n-electrode arranged on a light extraction surface on the side opposite to the surface whereupon a semiconductor stack is mounted on a substrate. A plurality of convexes are arranged on a first convex region and a second convex region on the light extraction surface. The second convex region adjoins the interface between the n-electrode and the semiconductor stack, between the first convex region and the n-electrode. The base end of the first convex arranged in the first convex region is positioned closer to a light emitting layer than the interface between the n-electrode and the semiconductor stack, and the base end of the second convex arranged in the second convex region is positioned closer to the interface between the n-electrode and the semiconductor stack than the base end of the first convex.Type: ApplicationFiled: August 27, 2014Publication date: December 18, 2014Inventors: Yohei WAKAI, Hiroaki MATSUMURA, Kenji OKA
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Publication number: 20140337610Abstract: The present invention protects a memory image of an OS in a sleep state. A CPU executes a first OS or a second OS while switching there between. The first OS is loaded into a main memory, and the second OS is loaded into an auxiliary memory. The auxiliary memory may be connected to a chipset through a PCIe interface. The main memory and the auxiliary memory are configured such that, when one is in an active state where the right of access to the CPU is obtained, the other makes a transition to the sleep state where there is no right of access to the CPU while maintaining the memory image. In order to prevent one OS in the active state from accessing the main memory or the auxiliary memory in which the memory image of the other OS in the sleep state is stored, the BIOS may set a corresponding controller to disabled during a POST.Type: ApplicationFiled: May 12, 2014Publication date: November 13, 2014Applicant: LENOVO (Singapore) PTE, LTD.Inventors: Seiichi Kawano, Kenji Oka, Shinji Matsushima
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Patent number: 8883529Abstract: A semiconductor light emitting device having high reliability and excellent light distribution characteristics can be provided with an n-electrode arranged on a light extraction surface on the side opposite to the surface whereupon a semiconductor stack is mounted on a substrate. A plurality of convexes are arranged on a first convex region and a second convex region on the light extraction surface. The second convex region adjoins the interface between the n-electrode and the semiconductor stack, between the first convex region and the n-electrode. The base end of the first convex arranged in the first convex region is positioned closer to a light emitting layer than the interface between the n-electrode and the semiconductor stack, and the base end of the second convex arranged in the second convex region is positioned closer to the interface between the n-electrode and the semiconductor stack than the base end of the first convex.Type: GrantFiled: September 9, 2013Date of Patent: November 11, 2014Assignee: Nichia CorporationInventors: Yohei Wakai, Hiroaki Matsumura, Kenji Oka
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Publication number: 20140317392Abstract: The present invention provides a method of easily managing two or more OSs. A host OS, a guest OS, and a virtualization module are loaded into a primary physical address area of a main memory. The guest OS is executed in a virtual environment in a primary physical address area. A memory image of the guest OS loaded in the primary physical address area is copied to a secondary physical address area. The right of access to a processor is transferred to the guest OS copied in the secondary physical address area to execute the guest OS in a physical environment.Type: ApplicationFiled: April 21, 2014Publication date: October 23, 2014Applicant: LENOVO (Singapore) PTE, LTD.Inventors: Seiichi Kawano, Jedd Benedict Kris Mahilum, Kenji Oka
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Patent number: 8831899Abstract: A system and method for determining measurement results of a dark-field inspection apparatus up to a microscopic area. A dark-field inspection apparatus is calibrated using a reference wafer having microroughness of an irregular asperity pattern accurately formed on a surface, and the microroughness of the surface having an ensured microroughness degree. This microroughness is measured by using an AFM, and an expected haze value is obtained based on the measured value. Then, haze of the surface of the reference wafer is measured by the dark-field inspection apparatus to be inspected to obtain an actually-measured haze value, and a difference between the expected haze value and the actually-measured haze value is obtained. Based on this difference, a haze measurement parameter of the dark-field inspection apparatus is adjusted so that the actually-measured haze value and the expected haze value match each other.Type: GrantFiled: October 15, 2009Date of Patent: September 9, 2014Assignee: Hitachi High-Technologies CorporationInventors: Kazunori Nemoto, Akira Hamamatsu, Hideo Ota, Kenji Oka, Takahiro Jingu
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Patent number: 8810642Abstract: In a pupil detection apparatus, based on a calculated value of red-eye occurrence intensity that is relative brightness of brightness within a first pupil image detected by a pupil detector with respect to brightness of a peripheral image outside the first pupil image, and a correlation characteristic of red-eye occurrence intensity and a pupil detection accuracy value, a switching selector selectively outputs a detection result of the first pupil image or a detection result of a second pupil image detected by a pupil detector. The pupil detection apparatus has a first imaging pair including an imager and an illuminator separated by a separation distance, and a second imaging pair whose separation distance is greater than that of the first imaging pair.Type: GrantFiled: January 24, 2011Date of Patent: August 19, 2014Assignee: Panasonic Intellectual Property Corporation of AmericaInventors: Sotaro Tsukizawa, Kenji Oka
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Patent number: 8804108Abstract: This application relates to an inspection apparatus including: a stage which holds a specimen; an illumination optical system which illuminates a surface of the specimen held on the stage, with illumination light; a dark-field optical system which detects scattered light generated by the illumination light with which the specimen is illuminated; a photoelectric converter which converts the scattered light detected by the dark-field optical system, into an electric signal; an A/D converter which converts the electric signal obtained by conversion by the photoelectric converter, into a digital signal; a judgement unit which determines the dimension of a foreign substance on the surface of the specimen on the basis of a magnitude of the scattered light from the foreign substance; and a signal processor which determines an inspection condition by use of information on the scattered light from the specimen surface.Type: GrantFiled: December 4, 2009Date of Patent: August 12, 2014Assignee: Hitachi High-Technologies CorporationInventors: Kenji Mitomo, Kenji Oka
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Patent number: 8699017Abstract: 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: GrantFiled: May 3, 2013Date of Patent: April 15, 2014Assignee: Hitachi High-Technologies CorporationInventors: Kenji Oka, Shigeru Matsui
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Patent number: 8659751Abstract: Disclosed are an ambient light reflection determination apparatus and an ambient light reflection determination method enabling to determine reflection without using an edge and even in a case where luminance of a reflection generating part in eyeglasses is low. In a reflection determination apparatus (100), a luminance histogram calculation section (102) calculates a luminance histogram representing a luminance distribution of an eye area image, a difference calculation section (104) calculates a difference histogram by finding a difference between the two luminance histograms calculated from the two eye area images having different photographing timings, an evaluation value calculation section (105) calculates an evaluation value regarding reflection of ambient light based on the difference histogram and a weight in accordance with luminance, and a reflection determination section (107) determines the reflection of ambient light based on the calculated evaluation value.Type: GrantFiled: June 7, 2011Date of Patent: February 25, 2014Assignee: Panasonic CorporationInventors: Sotaro Tsukizawa, Kenji Oka
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Patent number: 8649583Abstract: A pupil detection device and a pupil detection method, which are capable of stably detecting the pupil by actively using information of cornea-reflected image even when most of the pupil is hidden by the cornea-reflected image. In pupil detection device (100), peripheral state evaluating section (105) sets a plurality of line segments having a reference point of a cornea-reflected image as one end and having a predetermined length, and calculates a luminance evaluation value based on luminance of each pixel in each line segment and reference luminance. Pupil center straight line calculation section (106) specifies a pupil center straight line passing through a center of a pupil image from among a plurality of line segments based on a luminance evaluation value. Pupil search section (107) detects a pupil image based on a luminance state around the pupil center straight line.Type: GrantFiled: June 15, 2011Date of Patent: February 11, 2014Assignee: Panasonic CorporationInventors: Sotaro Tsukizawa, Kenji Oka
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Publication number: 20140038328Abstract: A semiconductor light emitting device having high reliability and excellent light distribution characteristics can be provided with an n-electrode arranged on a light extraction surface on the side opposite to the surface whereupon a semiconductor stack is mounted on a substrate. A plurality of convexes are arranged on a first convex region and a second convex region on the light extraction surface. The second convex region adjoins the interface between the n-electrode and the semiconductor stack, between the first convex region and the n-electrode. The base end of the first convex arranged in the first convex region is positioned closer to a light emitting layer than the interface between the n-electrode and the semiconductor stack, and the base end of the second convex arranged in the second convex region is positioned closer to the interface between the n-electrode and the semiconductor stack than the base end of the first convex.Type: ApplicationFiled: September 9, 2013Publication date: February 6, 2014Applicant: Nichia CorporationInventors: Yohei WAKAI, Hiroaki MATSUMURA, Kenji OKA
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Publication number: 20130335189Abstract: An electrostatic discharge (ESD) protector includes a first high heat-conductive substrate, a second high heat-conductive substrate, a varistor layer, and a plurality of via-hole electrodes. The first high heat-conductive substrate is provided with a plurality of first through-holes. The second high heat-conductive substrate is provided with a plurality of second through-holes. The varistor layer that is mainly composed of zinc oxide is disposed between the first high heat-conductive substrate and the second high heat-conductive substrate. The varistor layer includes internal electrodes. Each of via-hole electrodes penetrates the varistor layer and fills both one of the first through-holes and one of the second through-holes to couple both the ones to each other.Type: ApplicationFiled: April 16, 2012Publication date: December 19, 2013Applicant: PANASONIC CORPORATIONInventors: Yuuichi Abe, Kenji Oka, Fuyuki Abe, Kazuhiro Miura, Mikinori Amisawa, Atsumi Miyakawa, Takahiro Senshu, Yuji Yamagishi, Jun Ootsuki
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Patent number: 8559000Abstract: 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: GrantFiled: August 23, 2012Date of Patent: October 15, 2013Assignees: Hitachi High-Technologies Corporation, Hitachi, Ltd.Inventors: Akira Hamamatsu, Minori Noguchi, Yoshimasa Ohshima, Hidetoshi Nishiyama, Kenji Oka, Takanori Ninomiya, Maki Tanaka, Kenji Watanabe, Tetsuya Watanabe, Yoshio Morishige
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Patent number: 8552445Abstract: 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: GrantFiled: December 26, 2008Date of Patent: October 8, 2013Assignee: Nichia CorporationInventors: Yohei Wakai, Hiroaki Matsumura, Kenji Oka
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Publication number: 20130242293Abstract: 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: ApplicationFiled: May 3, 2013Publication date: September 19, 2013Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATIONInventors: Kenji OKA, Shigeru MATSUI
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Patent number: 8539248Abstract: Associating biometric information with passwords is disclosed. If biometric information received from a user matches stored biometric information, stored passwords associated therewith are retrieved. If these stored passwords are identical to access-enabling passwords, then the user is permitted to gain access associated with the access-enabling passwords. If the biometric information matches the stored biometric information but the stored passwords do not match the access-enabling passwords or are not present, then the user is requested to manually enter passwords, which are stored. If these stored passwords are identical to the access-enabling passwords, the user is permitted to gain access. However, if the biometric information does not match the stored biometric information, or if the biometric information has not been received from the user or is not present, then the user is requested to manually enter passwords.Type: GrantFiled: October 2, 2004Date of Patent: September 17, 2013Assignee: International Business Machines CorporationInventors: Mikio Hagiwara, Kishiko Itoh, Kenji Oka, Akira Hino, Masaki Obinata
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Patent number: 8503737Abstract: The visual line estimating apparatus 200 comprises: an image inputting section 201 operable to take an image of a human; a visual line measurement section 202 operable to measure a direction of a visual line on the basis of the taken image; a visual line measuring result storing section 211 operable to store therein visual line measuring results previously measured; a representative value extracting section 212 operable to extract a previous representative value; and a visual line determining section 213 operable to judge whether or not a difference between the representative value and the visual line measuring result is lower than a predetermined threshold to determine a visual line estimating result from the representative value and the visual line measuring result.Type: GrantFiled: September 22, 2011Date of Patent: August 6, 2013Assignee: Panasonic CorporationInventors: Kenji Oka, Sotaro Tsukizawa
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Publication number: 20130170754Abstract: Disclosed is a pupil detection device capable improving the pupil detection accuracy even if a detection target image is a low-resolution image. In a pupil detection device (100), an eye area actual size calculation unit (102) acquires an actual scale value of an eye area, a pupil state prediction unit (103) calculates an actual scale prediction value of a pupil diameter, a necessary resolution estimation unit (105) calculates a target value of resolution on the basis of the calculated actual scale prediction value, an eye area image normalization unit (107) calculates a scale-up/scale-down factor on the basis of the calculated target value of resolution and the actual scale value of the eye area, and normalizes the image of the eye area on the basis of the calculated scale-up/scale-down factor, and a pupil detection unit (108) detects a pupil image from the normalized eye area image.Type: ApplicationFiled: September 22, 2011Publication date: July 4, 2013Applicant: PANASONIC CORPORATIONInventors: Sotaro Tsukizawa, Kenji Oka
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Patent number: 8462327Abstract: 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: GrantFiled: March 28, 2012Date of Patent: June 11, 2013Assignee: Hitachi High-Technologies CorporationInventors: Kenji Oka, Shigeru Matsui