Patents by Inventor Seiji Yamamoto

Seiji Yamamoto 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: 20120128886
    Abstract: In a nuclear power plant, a corrosion-resistant oxide film on a surface of the metal component of a reactor structure is exposed to a high-temperature water, the corrosion-resistant oxide film containing an oxide having a property of a P-type semiconductor, and a catalytic substance having a property of an N-type semiconductor is deposited on the oxide film. The oxide film maintains the property of the P-type semiconductor.
    Type: Application
    Filed: January 31, 2012
    Publication date: May 24, 2012
    Applicants: THE TOKYO ELECTRIC POWER COMPANY, INCORPORATED, Kabushiki Kaisha Toshiba
    Inventors: Masato Okamura, Tetsuo Oosato, Seiji Yamamoto, Tadasu Yotsuyanagi, Nagayoshi Ichikawa, Kenji Yamazaki, Junichi Takagi, Hidehiro Urata, Shunichi Suzuki, Kenro Takamori, Junichi Suzuki
  • Publication number: 20120092877
    Abstract: A lamp holder that holds a lamp, which is a light source for displaying an image, in a lamp housing. The lamp holder includes an elastic portion, which is held between the lamp and an inner surface of the lamp housing, and a hooking portion, which is fitted into an opening extending through the lamp housing and hooked to an outer surface of the lamp housing.
    Type: Application
    Filed: October 11, 2011
    Publication date: April 19, 2012
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Kazuya Minami, Seiji Yamamoto
  • Publication number: 20120064242
    Abstract: According to one embodiment, there is provided a method for monitoring corrosion in a power plant, including: forming a film with a composition of M1FeO3 (M1: trivalent or tetravalent metal) or M2Fe2O4 (M2: divalent metal) on an inner wall surface of each of apparatuses of the power plant; and maintaining the film stably by controlling an amount of introduction of oxygen into each of apparatuses commensurate with a temperature in each of the apparatuses.
    Type: Application
    Filed: August 29, 2011
    Publication date: March 15, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Osamu SHIBASAKI, Masato Okamura, Koji Negishi, Seiji Yamamoto, Toyoaki Miyazaki
  • Publication number: 20120039429
    Abstract: The present invention provides an operation method of a plant which has a low-pressure feed water heater, a deaerator and a high-pressure feed water heater sequentially arranged in a feed water pipe reaching a steam generator from a condenser, and leads high-temperature feed water to the steam generator, wherein an oxidant is injected onto a surface of a structural material from an oxidant injection line in order to form a film that suppresses an elution of an element constituting the structural material such as the feed water pipe, the low-pressure feed water heater, the deaerator and the high-pressure feed water heater, which come in contact with the high-temperature feed water, and a corrosion suppression substance is further introduced from a corrosion suppression substance introduction line in order to deposit the corrosion suppression substance on a surface of the structural material in which corrosion accelerated by a flow of the feed water occurs.
    Type: Application
    Filed: February 8, 2010
    Publication date: February 16, 2012
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Osamu Shibasaki, Masato Okamura, Seiji Yamamoto, Toyoaki Miyazaki, Kenji Yamazaki, Tetsuji Kaneko, Minoru Kobayashi
  • Patent number: 8112144
    Abstract: Since cerebral atrophy does not occur only in a specific cross-section and reaches the brain in its entirety or arises prominently in a specific lobe (for example temporal lobe), for the assessment of cerebral atrophy, not only atrophy assessment for the frontal lobe but also an assessment also including atrophy of the temporal lobe, the parietal lobe and the occipital lobe is more desirable. The intracranial volume, the volume of the grey matter and the volume of the white matter are respectively extracted, computed and converted into numbers by image processing from a plurality of MRI slice images and the like. Ratios of these values from the conversions into numbers are taken to calculate the ratio of the grey matter and the ratio of the white matter with respect to the entire brain. Through comparison of a multitude of measurement data obtained by this automated computation, and a case, an objective cerebral atrophy assessment is carried out.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: February 7, 2012
    Assignees: National University Corporation Shizuoka University, National University Corporation Hamamatsu University School of Medicine
    Inventors: Seiji Yamamoto, Baigalmaa Tsagaan, Keiichi Abe
  • Publication number: 20120028038
    Abstract: A corrosion-resistant member has a composite titanium oxide film for reducing corrosion deposited on a surface of a construction material, where the composite titanium oxide film is represented by a molecular formula MTiO3 in which M is a transition element, and the corrosion-resistant member is preliminarily manufactured by depositing titanium oxide on the surface of the construction material, and the titanium oxide is subsequently or simultaneously subjected to high temperature treatment under existence of an ion of the transition metal.
    Type: Application
    Filed: March 26, 2010
    Publication date: February 2, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masato Okamura, Osamu Shibasaki, Seiji Yamamoto, Toyoaki Miyazaki
  • Publication number: 20120010498
    Abstract: Surgical operation supporting apparatus and method is disclosed in which based on a high-definition tomographic images of an operation site produced before surgery, a three-dimensional model of the operation site is generated, and a surface of the operation site is optically measured during the surgical operation, and further, first position information that represents a three-dimensional position of each of points on the surface is acquired. An unexposed portion of the operation site is measured with ultrasonic waves during the surgical operation, and second position information that represents a three-dimensional position of each of points in the unexposed portion is acquired. Based on the first position information and the second position information, displacement and distortion at a portion whose three-dimensional position is not known in the three-dimensional model is estimated to obtain an estimated result.
    Type: Application
    Filed: March 30, 2011
    Publication date: January 12, 2012
    Applicant: National University Corporation Hamamatsu University School of Medicine
    Inventors: Seiji Yamamoto, Susummu Terakawa, Toshihisa Takai, Katsuhiro Sato, Keiichi Abe, Baigalmaa Tsagaan
  • Publication number: 20120008108
    Abstract: A projection display device includes: a light source; a rod-type integrator which unifies light emitted from the light source in intensity distribution; an imager which modulates the light emitted from the integrator; and an optical axis adjuster for adjusting an optical axis of the light source with respect to an incidence plane of the integrator. In this arrangement, the integrator has the incidence plane formed in the shape of a rectangle and inclines around an optical axis of the integrator with respect to an installation surface of a main body cabinet in which the light source is disposed. In addition, the optical axis adjuster shifts the light source relatively with respect to the incidence plane in a direction parallel to a shorter side of the incidence plane.
    Type: Application
    Filed: July 12, 2011
    Publication date: January 12, 2012
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Taichi Yoshimura, Seiji Yamamoto
  • Publication number: 20120004541
    Abstract: Provided is a surgery assistance system to perform relatively fast and accurate alignment between three-dimensional surface shape data acquired by measurement using a three-dimensional surface shape scanner and three-dimensional internal shape data acquired in advance, even when the position of the patient and the surface shape of the skin of the patient change during the surgery. A surgery assistance system (1) includes a three-dimensional surface shape scanner (20) for acquiring three-dimensional surface shape data by measuring a three-dimensional surface shape of a patient (60) and a computing device (40) for processing the data from the three-dimensional surface shape scanner. The computing device stores therein three-dimensional internal shape data of the patient that is acquired in advance by measurement using a three-dimensional tomography scanner (30).
    Type: Application
    Filed: March 1, 2010
    Publication date: January 5, 2012
    Applicant: NATIONAL UNIVERSITY CORPORATION HAMAMATSU UNIVERSI
    Inventors: Seiji Yamamoto, Toshihisa Takai, Etsukazu Hayashimoto, Akira Miura
  • Patent number: 8047724
    Abstract: A wheel bearing apparatus includes a roller bearing, an inner shaft having an outer circumferential surface to which an inner ring of the roller bearing is installed, a coupler ring attached to an end portion of the inner shaft, and a caulked portion provided in an end portion of the inner shaft so as to fix the coupler ring and the roller bearing to the inner shaft so as to be immovable in an axial direction of the inner shaft. An outer diameter of the coupler ring is set smaller than a diameter of a shoulder portion of the inner ring. Alternatively, a protruding portion is provided in any one of opposing end surfaces of the coupler ring and the inner ring, whereby the coupler ring is arranged away from a seal member. Accordingly, it is possible to avoid an interference of the coupler ring with the seal member.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: November 1, 2011
    Assignee: JTEKT Corporation
    Inventors: Tsuyoshi Kamikawa, Yoshito Takada, Masaru Deguchi, Ken Adachi, Youichi Tsuzaki, Seiji Yamamoto, Changxin Yu, Masao Takimoto, Tetsuya Ishikawa, Syuuji Nagata
  • Publication number: 20110249140
    Abstract: An electronic camera includes an imager. An imager repeatedly outputs an image representing a scene captured by an imaging surface. An adjuster adjusts an imaging condition by referring to any one of a plurality of adjustment references including a specific adjustment reference suitable for outdoors. A controller controls whether or not the referring by the adjuster to the specific adjustment reference should be permitted, with reference to a determined result of whether or not an average luminance of the image outputted from the imager satisfies a first condition and a determined result of whether or not a ratio of an area having a luminance deviating from a predetermined range occupying in the image outputted from the imager satisfies a second condition.
    Type: Application
    Filed: April 11, 2011
    Publication date: October 13, 2011
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Takeshi FUJIWARA, Seiji Yamamoto, Seigo Hayashi
  • Publication number: 20110249130
    Abstract: An electronic camera includes an imager. An imager repeatedly outputs an image representing a scene captured by an imaging surface. An adjuster adjusts an imaging condition by referring to any one of a plurality of adjustment references including a specific adjustment reference suitable for a dynamic scene. A permitter permits the referring by the adjuster to the specific adjustment reference when a movement of the image outputted from the imager satisfies a first condition and a luminance of the image outputted from the imager satisfies a second condition. A restrictor restricts the referring by the adjuster to the specific adjustment reference when at least one of the first condition and the second condition is not satisfied.
    Type: Application
    Filed: April 11, 2011
    Publication date: October 13, 2011
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Takeshi FUJIWARA, Seiji Yamamoto
  • Patent number: 8029168
    Abstract: A projection type image display apparatus has a light source unit (11) that includes an arc tube (110) enclosed by a reflector (111) for reflecting the light emitted from the arc tube in one direction through its opening (111a). The opening (111a) of the reflector (111) of the light source unit (11) is covered with a transparent member (112). Formed in one side of the reflector (111), adjacent the opening is an air inlet port (113), while the side facing the air inlet port (113) is closed (i.e. has no port). Formed in the remaining two sides of the reflector (111), and adjacent the opening (111a), are air outlet ports (114) one for each side. This arrangement causes the cooling air to be uniformly circulated in the entire reflector (111) of the light source unit (11) without stagnation to regulate the temperature of the arc tube (110) in an easy and costless manner, and enables installation of the light source unit (11) at any angular position, free of angular limitation.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: October 4, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Seiji Yamamoto, Tamami Kitani, Taichi Yoshimura
  • Publication number: 20110211663
    Abstract: A radiation exposure reduction method includes the steps of: injecting iron into a coolant which flows from the reactor cooling system to the reactor core in a nuclear power plant; and ferritizing and fixing radionuclides or parent nuclides thereof, which are contained in the coolant, on the surface of a reactor core structure, wherein an iron citrate which is soluble organic iron, or iron oxalate or iron fumarate which has a particle diameter of 3 ?m or less, is used as the iron to be injected into the coolant.
    Type: Application
    Filed: November 4, 2009
    Publication date: September 1, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yumi Yaita, Seiji Yamamoto, Hajime Hirasawa, Yutaka Uruma
  • Publication number: 20110122986
    Abstract: The present invention relates to a method and an apparatus for suppressing adhesion of a radioactive substance, capable of suppressing adhesion of the radioactive substance onto the surface of a metallic material forming a structural member in a nuclear plant. On the surface of the metallic material forming the structural member in a nuclear power generation plant, e.g., a surface 32A of a pipe 32, an adhesion-suppressing substance 34 containing titanium oxide as a titanium compound is disposed, and a part on which the adhesion-suppressing substance 34 has been formed, is held at 80° C. or higher. The adhesion-suppressing substance 34 is formed on the surface 32A of the pipe 32 by spraying a solution or a suspension liquid of the substance.
    Type: Application
    Filed: August 21, 2008
    Publication date: May 26, 2011
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Seiji Yamamoto, Masami Enda, Hiromi Aoi, Yutaka Uruma
  • Publication number: 20110125006
    Abstract: Even when the optical axis is offset in a rigid endoscope, the actual optical axis position is measured in advance, and surgery navigation can be performed by using the actual optical axis position.
    Type: Application
    Filed: March 17, 2009
    Publication date: May 26, 2011
    Inventors: Seiji Yamamoto, Toshihisa Takai, Etsukazu Hayashimoto, Masaaki Kinpara, Akira Miura
  • Publication number: 20110054300
    Abstract: Presentation of images showing with high resolution the state of a surgical field during surgery is realized with a simple configuration. When performing surgery, a three-dimensional model is generate based on MRI images of a patient captured prior to surgery, and three-dimensional coordinates of each location on a surface of the patient are measured by scanning a laser beam over the surface and detecting laser beam reflected therefrom, and correspondence is made with the MRI image for each location of the surface (frameless/markerless: steps 100 to 116), the position of a surgical instrument is also detected by the laser beam, the position of the surgical instrument derived, and images of the surgical instrument combined onto the MRI images and displayed during surgery (steps 120 to 130).
    Type: Application
    Filed: January 31, 2007
    Publication date: March 3, 2011
    Applicant: National University Corporation Hamamatsu University School of Medicine
    Inventors: Seiji Yamamoto, Susumu Terakawa, Toshihisa Takai, Katsuhiro Sato
  • Publication number: 20100094085
    Abstract: An object of the present invention is to accurately display to which region of a patient, a part the image of which is being picked up by an endoscope corresponds without the need to newly use a special endoscope.
    Type: Application
    Filed: January 9, 2008
    Publication date: April 15, 2010
    Applicant: National University Corporation Hamamatsu Universi ty School of Medicine
    Inventors: Seiji Yamamoto, Susumu Terakawa, Masanori Takaya
  • Patent number: 7654697
    Abstract: A liquid crystal projector device of the present invention includes a lamp unit and a lamp cooling fan, the lamp unit having disposed therein a columnar lamp bulb having a luminous body enclosed therein, the lamp unit having a side wall opposed to the lamp cooling fan and provided with a first and second air introduction openings at opposite sides of a plane including a central axis of the lamp bulb and perpendicular to the side wall, for introducing the air drawn from the lamp cooling fan toward the lamp bulb.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: February 2, 2010
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Taichi Yoshimura, Ryosuke Sato, Tamami Kitani, Seiji Yamamoto
  • Publication number: 20090221901
    Abstract: Since cerebral atrophy does not occur only in a specific cross-section and reaches the brain in its entirety or arises prominently in a specific lobe (for example temporal lobe), for the assessment of cerebral atrophy, not only atrophy assessment for the frontal lobe but also an assessment also including atrophy of the temporal lobe, the parietal lobe and the occipital lobe is more desirable. The intracranial volume, the volume of the grey matter and the volume of the white matter are respectively extracted, computed and converted into numbers by image processing from a plurality of MRI slice images and the like. Ratios of these values from the conversions into numbers are taken to calculate the ratio of the grey matter and the ratio of the white matter with respect to the entire brain. Through comparison of a multitude of measurement data obtained by this automated computation, and a case, an objective cerebral atrophy assessment is carried out.
    Type: Application
    Filed: March 29, 2007
    Publication date: September 3, 2009
    Inventors: Seiji Yamamoto, Baigalmaa Tsagaan, Keiichi Abe