Patents by Inventor Tsukasa Azuma

Tsukasa Azuma 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: 20120220136
    Abstract: According to one embodiment, a pattern data generating apparatus comprises a storage unit that stores a table defining direct self assembly information that combines a direct self assembly material, a film thickness of the direct self assembly material, and a process condition for the direct self assembly material according to a pattern dimension, a division unit that divides layout data of a device based on the pattern dimension to generate divided layouts, an extraction unit that extracts the direct self assembly information corresponding to the pattern dimension of the divided layout from the table, and a generation unit that generates pattern data by allocating the direct self assembly information extracted by the extraction unit to the divided layouts.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 30, 2012
    Inventor: Tsukasa AZUMA
  • Publication number: 20120214272
    Abstract: Certain embodiments provide a method of manufacturing an organic thin film solar cell comprising forming, on a first electrode, a first transport layer having an uneven pattern and a photoelectric conversion layer provided on a surface of the uneven pattern, forming a second transport layer on a second electrode, and bringing the uneven pattern having the photoelectric conversion layer is formed thereon into contact with the second transport layer to mold the second transport layer.
    Type: Application
    Filed: September 13, 2011
    Publication date: August 23, 2012
    Inventors: Tsukasa Azuma, Ikuo Yoneda, Akiko Mimotogi, Ryoichi Inanami, Mitsunaga Saito, Hiroki Iwanaga, Akiko Hirao
  • Publication number: 20120214094
    Abstract: According to one embodiment, there is provided a method of forming a pattern including forming a polymer layer on a substrate, the polymer layer including a first and second regions, selectively irradiating either of the first and second regions with energy rays or irradiating the first and second regions with energy rays under different conditions to cause a difference in surface free energy between the first and second regions, thereafter, forming a block copolymer layer on the polymer layer, and causing microphase separation in the block copolymer layer to simultaneously form first and second microphase-separated structures on the first and second regions, respectively.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 23, 2012
    Inventors: Satoshi MIKOSHIBA, Koji Asakawa, Hiroko Nakamura, Shigeki Hattori, Atsushi Hieno, Tsukasa Azuma, Yuriko Seino, Masahiro Kanno
  • Publication number: 20120180912
    Abstract: A high strength and high toughness cast steel material of the invention has a composition comprising 0.10 to 0.20% by mass of C, 0.10 to 0.50% by mass of Si, 0.40 to 1.20% by mass of Mn, 2.00 to 3.00% by mass of Ni, 0.20 to 0.70% by mass of Cr, and 0.10 to 0.50% by mass of Mo, and further comprising Fe and unavoidable impurities. The high strength and high toughness cast steel material of the invention is produced by subjecting an ingot having the above composition to annealing at 1,000 to 1,100° C., quenching at 850 to 950° C., tempering at 610 to 670° C., and then, if desired, stress-relief annealing at less than 610° C.
    Type: Application
    Filed: September 24, 2010
    Publication date: July 19, 2012
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Yoshihiro Gotoh, Shinji Tanaka, Tsukasa Azuma
  • Publication number: 20120160373
    Abstract: A forging heat resistant steel of an embodiment contains in percent by mass C: 0.05-0.2, Si: 0.01-0.1, Mn: 0.01-0.15, Ni: 0.05-1, Cr: 8 or more and less than 10, Mo: 0.05-1, V: 0.05-0.3, Co: 1-5, W: 1-2.2, N: 0.01 or more and less than 0.015, Nb: 0.01-0.15, B: 0.003-0.03, and a remainder comprising Fe and unavoidable impurities.
    Type: Application
    Filed: December 23, 2011
    Publication date: June 28, 2012
    Applicants: THE JAPAN STEEL WORKS, LTD., Kabushiki Kaisha Toshiba
    Inventors: Masayuki YAMADA, Reki Takaku, Haruki Ohnishi, Kenichi Okuno, Kenichi Imai, Kazuhiro Miki, Tsukasa Azuma, Satoru Ohsaki
  • Patent number: 8119313
    Abstract: A method for manufacturing a semiconductor device, includes: supplying a liquid resist containing a water-repellent additive to a surface of a rotating semiconductor wafer fixed to a rotary support to form a resist film to a design thickness on the surface of the semiconductor wafer; spin drying the resist film; bringing a liquid into contact with the resist film and exposing the resist film through the liquid after the spin drying; developing the resist film to form a resist pattern; and performing processing on the semiconductor wafer. A condition for adjusting contact angle between the resist film surface and the liquid is controlled so that the contact angle assumes a desired value, the condition including at least one selected from the group consisting of spin drying time for the resist film, resist temperature during the supplying, pressure of an atmosphere above the semiconductor wafer surface, and humidity of the atmosphere above the semiconductor wafer surface.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: February 21, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Katsutoshi Kobayashi, Daizo Muto, Koutarou Sho, Tsukasa Azuma
  • Publication number: 20120009799
    Abstract: According to one embodiment, a template manufacturing method is a method for manufacturing a template for use in an imprint processing in which a pattern having irregularities are formed on a principal surface, and the pattern is brought into contact with a resist member formed on a substrate to be processed, to transfer the pattern to the resist member, the method including implanting charged particles at least into the bottoms of concave portions of the template.
    Type: Application
    Filed: June 1, 2011
    Publication date: January 12, 2012
    Inventors: Tsukasa AZUMA, Tatsuhiko Higashiki, Kyoichi Suguro
  • Publication number: 20110059402
    Abstract: According to the embodiments, exposure is performed on a resist on a substrate at a first focus position by using a phase shift mask in which a first light transmitting area and a second light transmitting area are formed adjacently via a light shielding pattern and a phase difference between light transmitting through the first light transmitting area and light transmitting through the second light transmitting area is ???, and exposure is performed on the resist at a second focus position different from the first focus position by using the phase shift mask.
    Type: Application
    Filed: August 16, 2010
    Publication date: March 10, 2011
    Inventors: Tsukasa Azuma, Takashi Sato
  • Patent number: 7820098
    Abstract: In the thermal power system, the electricity production efficiency may be improved by providing turbine members having the improved high temperature characteristic over the corresponding prior art turbine members. Turbine members may be provided by using high resistant steels composed of any one or ones selected from the group consisting of the components, including 0.08 to 0.13% of carbon (C), 8.5 to 9.8% of chromium (Cr), 0 to 1.5% of molybdenum (Mo), 0.10 to 0.25% of vanadium (V), 0.03 to 0.08% of niobium (Nb), 0.2 to 5.0% of tungsten (W), 1.5 to 6.0% of cobalt (Co), 0.002 to 0.015% of boron (B), 0.015 to 0.025% of nitrogen (N), and optionally, 0.01 to 3.0% of rhenium (Re), 0.1 to 0.50% of silicon (Si), 0.1 to 1.0% of manganese (Mo), 0.05 to 0.8% of nickel (Ni) and 0.1 to 1.3% of cupper.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: October 26, 2010
    Assignees: The Japan Steel Works, Ltd., The Kansai Electric Power Co., Inc.
    Inventors: Masahiko Morinaga, Yoshinori Murata, Tsukasa Azuma, Kazuhiro Miki, Tohru Ishiguro, Ryokichi Hashizume
  • Publication number: 20100227262
    Abstract: A method for manufacturing a semiconductor device, includes: supplying a liquid resist containing a water-repellent additive to a surface of a rotating semiconductor wafer fixed to a rotary support to form a resist film to a design thickness on the surface of the semiconductor wafer; spin drying the resist film; bringing a liquid into contact with the resist film and exposing the resist film through the liquid after the spin drying; developing the resist film to form a resist pattern; and performing processing on the semiconductor wafer. A condition for adjusting contact angle between the resist film surface and the liquid is controlled so that the contact angle assumes a desired value, the condition including at least one selected from the group consisting of spin drying time for the resist film, resist temperature during the supplying, pressure of an atmosphere above the semiconductor wafer surface, and humidity of the atmosphere above the semiconductor wafer surface.
    Type: Application
    Filed: January 29, 2010
    Publication date: September 9, 2010
    Inventors: Katsutoshi KOBAYASHI, Daizo Muto, Koutarou Sho, Tsukasa Azuma
  • Publication number: 20080318166
    Abstract: An object of the present invention is to provide a method of manufacturing semiconductor device, in which a water repellent layer on a resist film surface is removed to improve pattern-size controllability in a developing process. The pattern controllability of a resist pattern is improved by forming the resist pattern in such a manner that a resist film is formed on a surface of a semiconductor substrate, by using an exposure system, a liquid is filled between the resist film and a projection optical system to expose the resist film through the liquid, a water repellent layer formed on a surface of the resist film is removed after exposure, the substrate is thermally-processed after the water repellent layer is remove, and the resist film is developed.
    Type: Application
    Filed: June 20, 2008
    Publication date: December 25, 2008
    Inventor: Tsukasa AZUMA
  • Publication number: 20080213099
    Abstract: An Ni—Fe based superalloy forging material including 30 to 40 wt % of Fe, 14 to 16 wt % of Cr, 1.2 to 1.7 wt % of Ti, 1.1 to 1.5 wt % of Al, 1.9 to 2.7 wt % of Nb, 0.05 wt % or less of C and the remainder of Ni and inevitable impurities is solution-treated and aged, and thereby ?? phase (Ni3Al) having an initial mean particle size of about 50 to about 100 nm is precipitated. This superalloy is excellent in high-temperature strength and high-temperature ductility and can produce a large forged product of 10 ton or more. Therefore, this material is suitable for use as the material of a steam turbine rotor having a main steam temperature of 650° C. or more.
    Type: Application
    Filed: August 10, 2007
    Publication date: September 4, 2008
    Inventors: Shinya IMANO, Hirotsugu KAWANAKA, Hiroyuki DOI, Tatsuya TAKAHASHI, Tsukasa AZUMA, Koji KAJIKAWA
  • Patent number: 6846750
    Abstract: According to the present invention, there is provided a method of manufacturing a semiconductor device, where a soluble thin film which is soluble in a dissolving liquid is used. According to the method of the present invention, when a soluble thin film is formed between a film to be processed which should be patterned and a mask pattern, it becomes possible to remove the mask pattern by lifting-off. On the other hand, when the thin film is used for a dummy layer for forming an air wiring structure, the dummy layer can be removed without performing ashing using oxygen plasma.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: January 25, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tokuhisa Ohiwa, Shoji Seta, Nobuo Hayasaka, Katsuya Okumura, Akihiro Kojima, Junko Ohuchi, Tsukasa Azuma, Hideo Ichinose, Ichiro Mizushima
  • Publication number: 20040192034
    Abstract: According to the present invention, there is provided a method of manufacturing a semiconductor device, where a soluble thin film which is soluble in a dissolving liquid is used. According to the method of the present invention, when a soluble thin film is formed between a film to be processed which should be patterned and a mask pattern, it becomes possible to remove the mask pattern by lifting-off. On the other hand, when the thin film is used for a dummy layer for forming an air wiring structure, the dummy layer can be removed without performing ashing using oxygen plasma.
    Type: Application
    Filed: April 15, 2004
    Publication date: September 30, 2004
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Tokuhisa Ohiwa, Shoji Seta, Nobuo Hayasaka, Katsuya Okumura, Akihiro Kojima, Junko Ohuchi, Tsukasa Azuma, Hideo Ichinose, Ichiro Mizushima
  • Publication number: 20030185700
    Abstract: Provided is a heat-resisting steel, which can be operated stably under a high-temperatures steam environment and which provides an excellent economic advantage. The particular heat-resisting steel comprises 0.25 to 0.35% by mass of C, not more than 0.15% by mass of Si, 0.2 to 0.8% by mass of Mn, 0.3 to 0.6% by mass of Ni, 1.6 to 1.9% by mass of Cr, 0.26 to 0.35% by mass of V, 0.6 to 1.1% by mass of Mo, 0.6 to 1.4% by mass of W, 1.3 to 1.4% by mass of Mo+W/2, and the balance of Fe and unavoidable impurities.
    Type: Application
    Filed: September 26, 2002
    Publication date: October 2, 2003
    Applicants: THE JAPAN STEEL WORKS, LTD., KABUSHIKI KAISHA TOSHIBA
    Inventors: Ryuichi Ishii, Yoichi Tsuda, Masayuki Yamada, Tsukasa Azuma, Kazuhiro Miki
  • Patent number: 6576375
    Abstract: A photomask comprises a transparent substrate, a anti-reflection structure having a chromium oxide film, a chromium film and a chromium oxide film laminated in order on the major surface of the transparent substrate, an LiF film as a anti-reflection film formed on the surface of the first chromium oxide and at the interface between the chromium oxide film and the transparent substrate, and a spin-on-glass film formed on the surface of the chromium oxide film.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: June 10, 2003
    Assignees: Kabushiki Kaisha Toshiba, Fujitsu Limited
    Inventors: Seiro Miyoshi, Tsukasa Azuma, Hideyuki Kanemitsu
  • Publication number: 20030024609
    Abstract: In the thermal power system, the electricity production efficiency may be improved by providing turbine members having the improved high temperature characteristic over the corresponding prior art turbine members. Turbine members may be provided by using high resistant steels composed of any one or ones selected from the group consisting of the components, including 0.08 to 0.13% of carbon (C), 8.5 to 9.8% of chromium (Cr), 0 to 1.5% of molybdenum (Mo), 0.10 to 0.25% of vanadium (V), 0.03 to 0.08% of niobium (Nb), 0.2 to 5.0% of tungsten (W), 1.5 to 6.0% of cobalt (Co), 0.002 to 0.015% of boron (B), 0.015 to 0.025% of nitrogen (N), and optionally, 0.01 to 3.0% of rhenium (Re), 0.1 to 0.50% of silicon (Si), 0.1 to 1.0% of manganese (Mo), 0.05 to 0.8% of nickel (Ni) and 0.1 to 1.3% of cupper.
    Type: Application
    Filed: July 16, 2002
    Publication date: February 6, 2003
    Inventors: Masahiko Morinaga, Yoshinori Murata, Tsukasa Azuma, Kazuhiro Miki, Tohru Ishiguro, Ryokichi Hashizume
  • Patent number: 6279502
    Abstract: A semiconductor device is fabricated by the steps of coating an underlayer formed on a semiconductor substrate with chemically amplified resist, exposing the resist to light, bringing the resist into contact with an alkaline developing solution with applying a magnetic field to the alkaline developing solution for conducting development to form a resist pattern, and etching the underlayer on the semiconductor substrate using the resist pattern as a mask.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: August 28, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Tsukasa Azuma
  • Patent number: 6096484
    Abstract: A chemically amplified resist is applied to a semiconductor substrate and subjected to post-apply bake, and exposed to light, then, the resist is treated with a vapor of an organic solvent such as PGMEA. By treating with the vapor of the organic solvent, acid diffusion in the resist in the post-exposure bake is suppressed, and a resist pattern having an excellent profile is obtained by development.
    Type: Grant
    Filed: October 15, 1997
    Date of Patent: August 1, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Tsukasa Azuma
  • Patent number: 6051369
    Abstract: A lithography process includes a step of forming an antireflective coating film on a substrate. A film is formed on the antireflective film and a radiation sensitive film is formed on the film. The radiation sensitive film is selectively exposed. During the selective exposing, the antireflective film covers the lower surface of the portion of film on which the radiation sensitive film is formed, and the antireflective coating film reduces reflections of radiation during the selective exposing of the radiation sensitive film. A fabrication process using the lithography process is also described.
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: April 18, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tsukasa Azuma, Takashi Sato