Patents by Inventor Yutaka Watanabe

Yutaka Watanabe 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: 20050225741
    Abstract: An exposure apparatus for exposing a mask pattern onto an object by using a light with wavelength of approximately 11 nm, said exposure apparatus comprising a projection optical system that includes a reflection-type optical element that has a multilayer film including a Be layer, and a reflection-type mask comprising a multilayer film that includes a first layer that has a first refractive index, and a second layer that has a second refractive index that has a real part that is larger than a real part of the first refractive index, said reflection-type mask includes the mask pattern, wherein said the first layer includes a beryllium, chrome, cobalt, niobium, molybdenum, technetium, ruthenium, rhodium, palladium, or tungsten, wherein said the second layer includes a lithium, boron, carbon, nitrogen, oxygen, fluorine, silicon, aluminum, titanium, scandium, iron, germanium, lanthanum, magnesium, tungsten, strontium, yttrium, or zirconium.
    Type: Application
    Filed: April 7, 2005
    Publication date: October 13, 2005
    Inventors: Takeshi Yamamoto, Yutaka Watanabe
  • Patent number: 6947518
    Abstract: An X-ray exposure apparatus comprises an X-ray mirror containing a material having an absorption edge only in at least either one of a wavelength region of less than 0.45 nm and a wavelength region exceeding 0.7 nm as to X-rays.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: September 20, 2005
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Canon Kabushiki Kaisha
    Inventors: Kenji Itoga, Toyoki Kitayama, Yutaka Watanabe, Shunichi Uzawa
  • Patent number: 6947519
    Abstract: An X-ray exposure apparatus extracts exposure X-rays from light called synchrotron radiation from a synchrotron radiation source by an optical path including an X-ray mirror and performs exposure using the extracted X-rays. The X-ray mirror contains a material having an absorption edge in at least one of a wavelength range of less than 0.45 nm and a wavelength range exceeding 0.7 nm, thereby implementing exposure using the X-ray in the range of 0.45 nm to 0.7 nm. The X-ray mirror contains at least one material selected from the group consisting of iron, cobalt, nickel, copper, manganese, chromium, and their alloys, nitrides, carbides, and borides.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: September 20, 2005
    Assignees: Canon Kabushiki Kaisha, Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kenji Itoga, Shunichi Uzawa, Yutaka Watanabe, Toyoki Kitayama
  • Publication number: 20050185165
    Abstract: An illumination apparatus for illuminating a target surface using light includes a light source that emits the light, a reflection integrator that forms plural secondary light sources using the light from the light source, and an optical unit that differentiates Helmholtz-Lagrange invariants in two orthogonal directions with respect to the light incident upon the reflection integrator.
    Type: Application
    Filed: February 18, 2005
    Publication date: August 25, 2005
    Inventor: Yutaka Watanabe
  • Patent number: 6919734
    Abstract: A device testing apparatus including a connection terminal to which an electronic device under test is detachably attached, a pusher for pushing the electronic device in the direction of the connection terminal so as to connect the electronic device to the connection terminal, and a cooling unit for cooling the electronic device. As the cooling unit, an element cooling the device using electricity is for example used. The cooling unit includes a cooling medium blower for blowing a cooling medium around the electronic device and heat exchange projections or depressions for raising the cooling efficiency by blowing a cooling medium. In the device testing apparatus, even if the electronic device generates heat on its own during testing, the electronic device is cooled through the pusher, connection terminals, or socket, so the effect of the heat generated by the electronic device is canceled out and the electronic device can be tested at the predetermined temperature as prescribed in the specification.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: July 19, 2005
    Assignee: Advantest Corporation
    Inventors: Noboru Saito, Hiroyuki Takahashi, Noriyuki Igarashi, Keiichi Fukumoto, Hiroto Nakamura, Yutaka Watanabe, Kenichi Shimada
  • Publication number: 20050109426
    Abstract: It is an object of the present invention to provide a processing solution used for forming a hexavalent chromium free, black conversion film, which is applied onto the surface of zinc or zinc alloy plating layers, and which has corrosion resistance identical to or higher than that achieved by the conventional hexavalent chromium-containing conversion film. According to an aspect of the present invention, there is provided a processing solution for forming a hexavalent chromium free, black conversion film on zinc or zinc alloy plating layers, the processing solution comprising: nitrate ions and trivalent chromium in a mole ratio (NO3?/Cr3+) of less than 0.
    Type: Application
    Filed: September 14, 2004
    Publication date: May 26, 2005
    Applicant: DIPSOL CHEMICALS CO., LTD.
    Inventors: Manabu Inoue, Ryo Nakajima, Kazuhiro Watanabe, Toyoji Watanabe, Fumie Watanabe, Yutaka Watanabe, Takeshi Watanabe, Kimitaka Watanabe
  • Publication number: 20050096183
    Abstract: The invention is intended to provide a downhill speed control system which employs a method of setting a target vehicle speed in advance, thereby improving controllability when a vehicle runs down a slope, and giving an operator improved operability in setting of the target vehicle speed. Brakes are controlled so that, when the vehicle runs down the slope, an actual vehicle speed is matched with a target speed set by a switch which can set the target speed by selectively or continuously changing plural preset speeds. Also, control constants for PID control are modified depending on settings of a downslope gradient setting switch and a load setting switch. When an acceleration computed from the actual vehicle speed is larger than a target acceleration, the strength of applied brake is increased.
    Type: Application
    Filed: October 10, 2003
    Publication date: May 5, 2005
    Inventors: Yutaka Watanabe, Hiroshi Watanabe, Yasushi Tokuda
  • Patent number: 6867843
    Abstract: A debris removing system prevents debris from being scattered from an X-ray source. The debris removing system includes an attracting unit, disposed between a light emission point of the X-ray source and the optical system, for attracting debris. The attracting unit has an attracting surface parallel or approximately parallel to an axis passing through the light emission point. The debris removing system further includes a rotation unit for rotating the attracting unit about the axis. This debris removing system assures a superior debris removing effect and a good EUV light utilization efficiency, being compatible with each other.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: March 15, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuaki Ogushi, Yutaka Watanabe, Akira Miyake
  • Patent number: 6847696
    Abstract: A measurement apparatus has a first detector for measuring an intensity such that a sheet-shaped beam of synchrotron radiation is integrated over the entire range of the beam in the thickness direction thereof; a second detector for measuring the intensity of the beam at two points where positions along the direction are different; and a calculating device for calculating the magnitude of the beam in the direction on the basis of the detections by the first and second detectors.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: January 25, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideyuki Chinju, Yutaka Watanabe, Akira Miyake, Nobuaki Oqushi
  • Publication number: 20040264357
    Abstract: A phase-change optical recording medium capable of performing recording and reproduction at a high speed is provided, in which a reproduced signal output is not only sufficiently large but the phase-change optical recording medium also has excellent repeated rewriting performance. An interface layer 3, which is composed of a Ge—Si—N-based material, is formed on at least a surface of one side of a recording layer 4 of the phase-change optical recording medium 10. Accordingly, even when a phase-change material having a high melting point, for example, a Bi—Ge—Te-based phase-change material is used for the recording layer 4, it is possible to provide the phase-change optical recording medium in which the reproduced signal output is sufficiently large and the repeated rewriting performance is excellent.
    Type: Application
    Filed: June 24, 2004
    Publication date: December 30, 2004
    Applicant: Hitachi Maxell, Ltd.
    Inventors: Yoshihiro Ikari, Akira Kashiwakura, Makoto Miyamoto, Makoto Iimura, Naoki Kitagaki, Yutaka Watanabe, Mayumi Kurokawa, Sonoko Onodera
  • Patent number: 6823289
    Abstract: Fault diagnosis of hydraulic pumps is made automatically during an actual operation of a working machine, particularly when there is a problem with horsepower limiting control of the hydraulic pumps. A controller 50 performs horsepower limiting control for a plurality of variable displacement hydraulic pumps 1 to 6. The controller 50 measures a pump delivery pressure and pump delivery rate of each hydraulic pump when the pump delivery rate reaches a maximum during operation of the hydraulic drive system based on their detected values, collects the measured values as fault diagnostic data, and then compares a calculated target pump delivery rate with the collected pump delivery rate to decide if there is a fault of the hydraulic pump.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: November 23, 2004
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Hirotsugu Kasuya, Yutaka Watanabe, Masami Ochiai
  • Publication number: 20040125911
    Abstract: An X-ray mask has a mask pattern, a protection means for forming a dust-proof space for protecting the mask pattern, and an inner atmospheric pressure adjustment hole for ventilating between the dust-proof space and the outer atmosphere. The X-ray mask can be either a transmission type mask in which the mask pattern is formed on a membrane, or a reflection type mask in which a multilayered film reflection layer and the mask pattern are formed on a substrate.
    Type: Application
    Filed: December 17, 2003
    Publication date: July 1, 2004
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Keiko Chiba, Masami Tsukamoto, Yutaka Watanabe, Shinichi Hara, Hiroshi Maehara
  • Publication number: 20040081272
    Abstract: A measurement apparatus has a first detector for measuring an intensity such that a sheet-shaped beam of synchrotron radiation is integrated over the entire range of the beam in the thickness direction thereof; a second detector for measuring the intensity of the beam at two points where positions along the direction are different; and a calculating device for calculating the magnitude of the beam in the direction on the basis of the detections by the first and second detectors.
    Type: Application
    Filed: October 21, 2003
    Publication date: April 29, 2004
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hideyuki Chinju, Yutaka Watanabe, Akira Miyake, Nobuaki Oqushi
  • Patent number: 6728332
    Abstract: An exposure method for transferring a pattern of a mask onto a member to be exposed. The method includes the steps of making preparations for exposure while a protection cover is attached to the mask, executing alignment between the member to be exposed and the mask while the protection cover is detached from the mask, and executing exposure with X-rays while the protection cover is detached from the mask.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: April 27, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keiko Chiba, Masami Tsukamoto, Yutaka Watanabe, Shinichi Hara, Hiroshi Maehara
  • Publication number: 20040070416
    Abstract: A device testing apparatus including a connection terminal to which an electronic device under test is detachably attached, a pusher for pushing the electronic device in the direction of the connection terminal so as to connect the electronic device to the connection terminal, and a cooling unit for cooling the electronic device. As the cooling unit, an element cooling the device using electricity is for example used. The cooling unit includes a cooling medium blower for blowing a cooling medium around the electronic device and heat exchange projections or depressions for raising the cooling efficiency by blowing a cooling medium. In the device testing apparatus, even if the electronic device generates heat on its own during testing, the electronic device is cooled through the pusher, connection terminals, or socket, so the effect of the heat generated by the electronic device is canceled out and the electronic device can be tested at the predetermined temperature as prescribed in the specification.
    Type: Application
    Filed: November 20, 2003
    Publication date: April 15, 2004
    Applicant: ADVANTEST CORPORATION
    Inventors: Noboru Saito, Hiroyuki Takahashi, Noriyuki Igarashi, Keiichi Fukumoto, Hiroto Nakamura, Yutaka Watanabe, Kenichi Shimada
  • Patent number: 6665371
    Abstract: A measurement apparatus has a first detector for measuring an intensity such that a sheet-shaped beam of synchrotron radiation is integrated over the entire range of the beam in the thickness direction thereof; a second detector for measuring the intensity of the beam at two points where positions along the direction are different; and a calculating device for calculating the magnitude of the beam in the direction on the basis of the detections by the first and second detectors.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: December 16, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideyuki Chinju, Yutaka Watanabe, Akira Miyake, Nobuaki Ogushi
  • Patent number: 6645707
    Abstract: A device manufacturing method includes a first exposure step for executing a multiple exposure of a first layer of a substrate by use of plural first masks, a development step for developing the first layer of the substrate and a second exposure step, executed after the development step, for executing a multiple exposure of a second layer of the substrate by use of plural second masks. A portion of at least one of the first masks has a pattern the same as a pattern formed in a portion of at least one of the second masks.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: November 11, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsuaki Amemiya, Shunichi Uzawa, Keiko Chiba, Yutaka Watanabe
  • Patent number: 6647086
    Abstract: A proximity X-ray exposure apparatus for irradiating a reticle with X-rays generated from an X-ray source and irradiating a substrate with X-rays that have passed through the reticle. The apparatus includes a plasma X-ray source for generating X-rays by producing plasma, and a control device for controlling X-ray intensity distribution by controlling production of the plasma so that the plasma is produced at a plurality of positions in one irradiating operation of the substrate with the X-rays. The control device controls the X-ray intensity distribution in order to control the plurality of positions so that a required amount of defocusing, which is a size of a projection image corresponding to one point on the reticle formed by irradiating the reticle with X-rays generated at the plurality of positions, can be obtained.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: November 11, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsuaki Amemiya, Yutaka Watanabe
  • Patent number: 6603833
    Abstract: An X-ray exposure apparatus includes a partition structure for defining therein an ambience of one of an atmospheric pressure and a reduced pressure, for accommodating an X-ray mask and an article to be exposed, an X-ray window provided on the partition structure for spatially isolating the inside of the partition structure and an X-ray source, and having a function for transmitting therethrough an X-ray beam with which the article as placed inside the partition structure can be exposed through the X-ray mask, and a scanning mechanism for scanningly moving the X-ray window in a direction intersecting with an optical axis of the X-ray beam, in a single exposure and without interruption at least from just before the start of the exposure to just after the end of the exposure.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: August 5, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeru Terashima, Yutaka Watanabe
  • Publication number: 20030143496
    Abstract: A device manufacturing method includes a first step for executing a multiple exposure to a first layer on a substrate, by use of a plurality of first masks, and a second step, to be executed after the first step, for executing a multiple exposure to a second layer on the substrate, by use of a plurality of second masks, wherein one of the second masks has a pattern portion of the same design rule as that of one of the first masks.
    Type: Application
    Filed: March 24, 2000
    Publication date: July 31, 2003
    Inventors: Mitsuaki Amemiya, Shunichi Uzawa, Keiko Chiba, Yutaka Watanabe