Patents by Inventor Hirohisa Ota

Hirohisa Ota 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: 20070132157
    Abstract: A processing method for forming a first pattern on a substrate to which a resist is applied includes the steps of pressing an original having a second pattern that has a relief reverse to that of the first pattern, against the resist on the substrate, and irradiating light onto the resist via the original, wherein a size of a concave of the second pattern is greater than a size of a convex of the first pattern corresponding to the concave of the second pattern, and a size of a convex of the second pattern is smaller than a size of a concave of the first pattern corresponding to the convex of the second pattern.
    Type: Application
    Filed: December 7, 2006
    Publication date: June 14, 2007
    Inventors: Toshinobu Tokita, Hirohisa Ota, Eigo Kawakami, Kazuyuki Kasumi
  • Patent number: 7196321
    Abstract: Disclosed is a fine pattern forming apparatus and a fine pattern inspecting apparatus. In one preferred form, the fine pattern forming apparatus includes a surface irregularity information reading device for detecting a shape signal corresponding to a surface irregularity of a surface of an original, while scanning the surface by use of a first probe, and a surface irregularity information writing device for processing a substrate to be processed, while scanning a surface of the substrate by use of a second probe, wherein an applied electric voltage to the second probe is changed in accordance with the shape signal while a distance between the second probe and the substrate is kept substantially constant, or the distance between the second probe and the substrate is changed in accordance with the shape signal while the applied electric voltage to the second probe is kept substantially constant, such that the substrate is processed in accordance with the surface irregularity of the original.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: March 27, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eigo Kawakami, Hirohisa Ota, Takashi Nakamura, Kazuyuki Kasumi, Toshinobu Tokita
  • Patent number: 7180575
    Abstract: An exposure apparatus includes a projection optical system for projecting a multigradation pattern onto an object, a spatial modulation element that includes plural, two-dimensionally arranged pixels, and forms an optical image by binary control over each pixel, and a superposing optical system for forming the multigradation pattern by superposing the optical images for each row and/or for each column.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: February 20, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuyuki Kasumi, Hirohisa Ota, Eigo Kawakami, Takashi Nakamura, Toshinobu Tokita
  • Publication number: 20060192320
    Abstract: One object of the present invention is to provide a pattern transferring mold which can provide a starting area of mold release easily and certainly and a pattern transferring apparatus with the same. A pattern transferring mold is disclosed which is used in a pattern transferring apparatus that brings the mold into contact with a photo-curing resin on a substrate and cures the photo-curing resin by light irradiation to transfer a pattern formed on the mold onto the photo-curing resin. The mold comprises a bottom face which contacts the photo-curing resin, the bottom face portion including a first area in which the pattern is formed and a second area formed outside the first area. The mold has a mold-releasing shape in the second area, the mold-releasing shape providing a starting area of mold release from the cured photo-curing resin.
    Type: Application
    Filed: February 27, 2006
    Publication date: August 31, 2006
    Inventors: Toshinobu Tokita, Hirohisa Ota, Eigo Kawakami, Kazuyuki Kasumi, Takashi Nakamura
  • Publication number: 20060192928
    Abstract: A pattern transferring apparatus is disclosed which can prevent damage to a transferred pattern and realize fast mold release regardless of the type of resist. The pattern transferring apparatus transfers a pattern formed on a mold to an object by bringing the mold into contact with the apparatus has a deformer which causes deformation in the mold for releasing the mold from the object. The apparatus transfers a pattern formed on a mold to a photo-curing resin by bringing the mold into contact with the photo-curing resin and applying light thereto to cure the photo-curing resin. The apparatus has an optical system which applies light at an irradiation light intensity to a non-transfer area other than a transfer area where the pattern is to be transferred in the photo-curing resin, the intensity being different from an irradiation light intensity of light applied to the transfer area.
    Type: Application
    Filed: February 27, 2006
    Publication date: August 31, 2006
    Inventors: Kazuyuki Kasumi, Hirohisa Ota, Eigo Kawakami, Takashi Nakamura, Toshinobu Tokita
  • Publication number: 20060157444
    Abstract: An imprinting machine that brings a mold having a pattern into contact with an object and transfers the pattern onto the object includes a measurement unit that measures a position of the mold when the mold contacts the object.
    Type: Application
    Filed: December 7, 2005
    Publication date: July 20, 2006
    Inventors: Takashi Nakamura, Hirohisa Ota, Eigo Kawakami, Kazuyuki Kasumi, Toshinobu Tokita
  • Publication number: 20060087635
    Abstract: An exposure apparatus includes a projection optical system for projecting a multigradation pattern onto an object, a spatial modulation element that includes plural, two-dimensionally arranged pixels, and forms an optical image by binary control over each pixel, and a superposing optical system for forming the multigradation pattern by superposing the optical images for each row and/or for each column.
    Type: Application
    Filed: October 24, 2005
    Publication date: April 27, 2006
    Inventors: Kazuyuki Kazumi, Hirohisa Ota, Eigo Kawakami, Takashi Nakamura, Toshinobu Tokita
  • Publication number: 20050275125
    Abstract: A processing apparatus for transferring a relief pattern on a mold to a resist on a substrate through a compression of the mold against the resist, and an irradiation of light for exposing the resist onto the resist includes a mold chuck for holding the mold and for compressing the mold against the resist, and a deformation reducing part for reducing a deformation of the mold when the mold chuck applies a compression force to the mold.
    Type: Application
    Filed: June 8, 2005
    Publication date: December 15, 2005
    Inventors: Eigo Kawakami, Hirohisa Ota, Takashi Nakamura, Kazuyuki Kasumi, Toshinobu Tokita
  • Publication number: 20050269035
    Abstract: Disclosed is a fine pattern forming apparatus and a fine pattern inspecting apparatus. In one preferred form, the fine pattern forming apparatus includes a surface irregularity information reading device for detecting a shape signal corresponding to a surface irregularity of a surface of an original, while scanning the surface by use of a first probe, and a surface irregularity information writing device for processing a substrate to be processed, while scanning a surface of the substrate by use of a second probe, wherein an applied electric voltage to the second probe is changed in accordance with the shape signal while a distance between the second probe and the substrate is kept substantially constant, or the distance between the second probe and the substrate is changed in accordance with the shape signal while the applied electric voltage to the second probe is kept substantially constant, such that the substrate is processed in accordance with the surface irregularity of the original.
    Type: Application
    Filed: June 7, 2005
    Publication date: December 8, 2005
    Inventors: Eigo Kawakami, Hirohisa Ota, Takashi Nakamura, Kazuyuki Kasumi, Toshinobu Tokita
  • Publication number: 20050248659
    Abstract: An exposure apparatus includes a projection optical system for projecting a predetermined pattern onto an object to be exposed, and a pattern generating unit that includes plural pixels, and generates the predetermined pattern by driving the plural pixels, wherein the pattern generating unit has an alignment mark used for an alignment between the predetermined pattern and the object, on approximately the same surface as a surface on which the predetermined pattern is formed.
    Type: Application
    Filed: April 22, 2005
    Publication date: November 10, 2005
    Inventors: Kazuyuki Kasumi, Hirohisa Ota, Eigo Kawakami, Takashi Nakamura, Toshinobu Tokita
  • Publication number: 20050237375
    Abstract: An exposure apparatus for exposing a predetermined pattern onto an object via a projection optical system includes a pattern generating unit that includes plural pixels, and generates the predetermined pattern by driving the plural pixels, a measuring unit for measuring at least one of optical performance of the pattern generating unit and a driving state of the plural pixels, and a maintenance unit for maintaining the pattern generating unit based on a measuring result by the measuring unit.
    Type: Application
    Filed: April 21, 2005
    Publication date: October 27, 2005
    Inventors: Toshinobu Tokita, Hirohisa Ota, Eigo Kawakami, Takashi Nakamura, Kazuyuki Kasumi
  • Publication number: 20050230346
    Abstract: A processing apparatus for transferring a relief pattern on a mold to a resist on a substrate through a compression of the mold against the resist, includes a supplier for supplying the resist between the substrate and the mold, and a recovery unit for recovering the resist.
    Type: Application
    Filed: March 28, 2005
    Publication date: October 20, 2005
    Inventors: Kazuyuki Kasumi, Hirohisa Ota, Eigo Kawakami, Takashi Nakamura, Toshinobu Tokita
  • Publication number: 20050219485
    Abstract: An exposure apparatus for scanning an exposure spot in an exposure allocated area and for exposing a desired pattern by controlling power of the exposure spot in accordance with an exposure pattern, includes an exposure unit for arranging plural fine exposure elements, for forming plural exposure spots F1 to F9 on an object to be exposed, and for previously defining the exposure allocated areas SA11 to SA19 respectively corresponding to the plural exposure spots F1 to F9, an exposure allocated area adjuster for adjusting the exposure allocated areas SA12 and SA15 in accordance with directions and sizes of offsets (offset amount vectors V2 and V5) of the exposure spots F2 and F5 from a reference position, and an exposure spot controller for controlling the power of the exposure spot in accordance with the exposure pattern corresponding to actual positions of the exposure spots F1 to F9.
    Type: Application
    Filed: March 24, 2005
    Publication date: October 6, 2005
    Inventors: Takashi Nakamura, Hirohisa Ota, Eigo Kawakami, Kazuyuki Kasumi, Toshinobu Tokita
  • Publication number: 20050212156
    Abstract: A processing apparatus for transferring a relief pattern on a mold to a resist on a substrate through a compression of the mold against the resist, includes a supplier for supplying the resist between the substrate and the mold, and an illumination optical system for illuminating ultraviolet light onto the resist via the mold so as to cure the resist.
    Type: Application
    Filed: March 28, 2005
    Publication date: September 29, 2005
    Inventors: Toshinobu Tokita, Hirohisa Ota, Eigo Kawakami, Takashi Nakamura, Kazuyuki Kasumi
  • Patent number: 5614787
    Abstract: A metal halide lamp comprises a sealed tube containing mercury vapor and halide, and electrodes extending to a center of the sealed tube, supported by sealed portions at both ends of the sealed tube. A notch extending in a direction perpendicular to an axis of the electrode is formed in each electrode. A transverse cross sectional area of a portion where the notch is formed is smaller than the transverse cross sectional area of another portions and functions as a heat dam portion for damming heat. Accordingly, temperature of a proximal portion from the heat dam portion to the support portion is lower than that of the same portion of the conventional electrode, and temperature of a distal end portion is higher than that of the same portion of the conventional electrode. Thus, formation of low-melting alloy due to reaction of the proximal portion of the electrode and the metal halide can be suppressed.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: March 25, 1997
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Kouji Kawai, Shigeki Ishihara, Naoki Masuda, Hirohisa Ota, Osamu Yogi