Patents by Inventor Shin Asari

Shin Asari 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).

  • Patent number: 10000850
    Abstract: A catalytic chemical vapor deposition apparatus comprising a catalyst wire including a tantalum wire and a boride layer formed on a surface of the tantalum wire is used. The boride of the metal tantalum (tantalum boride) is harder than the metal tantalum. Therefore, by using the tantalum wire having the boride layer formed on the surface thereof as a catalyst wire, it is possible to reduce thermal expansion of the catalyst wire, improve mechanical strength, and prolong the service life. Further, by performing energization heating of the catalyst wire by continuous energization, it is further possible to prolong the service life of the catalyst wire.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: June 19, 2018
    Assignee: Ulvac, Inc.
    Inventors: Shuji Osono, Masanori Hashimoto, Shin Asari
  • Publication number: 20160060764
    Abstract: A catalytic chemical vapor deposition apparatus comprising a catalyst wire including a tantalum wire and a boride layer formed on a surface of the tantalum wire is used. The boride of the metal tantalum (tantalum boride) is harder than the metal tantalum. Therefore, by using the tantalum wire having the boride layer formed on the surface thereof as a catalyst wire, it is possible to reduce thermal expansion of the catalyst wire, improve mechanical strength, and prolong the service life. Further, by performing energization heating of the catalyst wire by continuous energization, it is further possible to prolong the service life of the catalyst wire.
    Type: Application
    Filed: November 12, 2015
    Publication date: March 3, 2016
    Inventors: Shuji OSONO, Masanori HASHIMOTO, Shin ASARI
  • Patent number: 8673705
    Abstract: [Object] To provide a method of producing a thin film transistor superior in productivity and capable of preventing variation in transistor characteristics among devices from occurring to improve carrier mobility, and a thin film transistor. [Solving Means] In a method of producing a thin-film transistor according to the present invention, a solid-state green laser is irradiated onto a channel portion of an amorphous silicon film using a source electrode film and a drain electrode film as masks, thereby improving mobility. Since the channel portion of the amorphous silicon film is crystallized by the irradiation of the solid-state green laser, laser oscillation characteristics can be more stable than in a conventional method that uses an excimer laser. Further, laser irradiation onto a large-size substrate at uniform output characteristics in plane becomes possible, with the result that a variation in crystallinity of channel portions among devices can be avoided.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: March 18, 2014
    Assignee: Ulvac, Inc.
    Inventors: Taro Morimura, Toru Kikuchi, Masanori Hashimoto, Shin Asari, Kazuya Saito, Kyuzo Nakamura
  • Publication number: 20120145184
    Abstract: A self-cleaning catalytic chemical vapor deposition apparatus which suppresses the corrosion-induced degradation of a catalytic body by a cleaning gas without heating a catalytic body to not less than 2000° C. and permits practical cleaning rates and good cleaning at low cost. Conductors supply a constant current to a catalytic body within a reaction chamber from a heating power supply. Terminals of the heating power supply are electrically insulated from the reaction chamber. A cleaning gas containing halogen elements is introduced into the evacuated reaction chamber. The catalytic body is heated by the heating power supply. An active species generated by this heating reacts with an adhering film adhered to the interior of the reaction chamber, which is removed. During this removal, a DC bias voltage with appropriate polarity and appropriate value is applied from a constant-voltage power supply to the conductor of the heating power supply.
    Type: Application
    Filed: February 16, 2012
    Publication date: June 14, 2012
    Applicant: ULVAC, INC.
    Inventors: Makiko KITAZOE, Shuji Osono, Hiromi Itoh, Kazuya Saito, Shin Asari
  • Publication number: 20120034731
    Abstract: A photoelectric conversion device manufacturing system in which a photoelectric conversion device is manufactured, the photoelectric conversion device including a p-type semiconductor layer, an i-type semiconductor layer, and an n-type semiconductor layer which are sequentially layered on a transparent-electroconductive film formed on a substrate in the photoelectric conversion device.
    Type: Application
    Filed: April 6, 2010
    Publication date: February 9, 2012
    Applicant: ULVAC, INC.
    Inventors: Takafumi Noguchi, Hideyuki Ogata, Katsuhiko Mori, Yasuo Shimizu, Hiroto Uchida, Shin Asari
  • Publication number: 20120015473
    Abstract: A photoelectric conversion device manufacturing method manufactures a photoelectric conversion device in which a first photoelectric conversion unit and a second photoelectric conversion unit are sequentially stacked on a transparent-electroconductive film formed on a substrate. The method includes: forming each of a first p-type semiconductor layer, a first i-type semiconductor layer, a first n-type semiconductor layer, and a second p-type semiconductor layer in a plurality of first plasma CVD reaction chambers; exposing the second p-type semiconductor layer to an air atmosphere; supplying a gas including p-type impurities to inside a second plasma CVD reaction chamber before forming of the second i-type semiconductor layer; forming the second i-type semiconductor layer on the second p-type semiconductor layer that was exposed to an air atmosphere, in the second plasma CVD reaction chamber; and forming the second n-type semiconductor layer on the second i-type semiconductor layer.
    Type: Application
    Filed: January 29, 2010
    Publication date: January 19, 2012
    Applicant: ULVAC, INC.
    Inventors: Hiroto Uchida, Tetsushi Fujinaga, Masafumi Wakai, Tadamasa Kobayashi, Yoshinobu Ue, Kyuzo Nakamura, Shin Asari, Kazuya Saito, Koichi Matsumoto, Yasuo Shimizu, Katsuhiko Mori
  • Publication number: 20110232573
    Abstract: [Object] To provide a catalytic chemical vapor deposition apparatus capable of prolonging the service life of a catalyst wire. [Solving Means] In a catalytic chemical vapor deposition apparatus (1) according to the present invention, a catalyst wire (6) including a tantalum wire and a boride layer formed on a surface of the tantalum wire is used. The boride of the metal tantalum (tantalum boride) is harder than the metal tantalum. Therefore, by using the tantalum wire having the boride layer formed on the surface thereof as a catalyst wire, it is possible to reduce thermal expansion of the catalyst wire, improve mechanical strength, and prolong the service life. Further, by performing energization heating of the catalyst wire (6) by continuous energization, it is further possible to prolong the service life of the catalyst wire (6).
    Type: Application
    Filed: December 9, 2008
    Publication date: September 29, 2011
    Applicant: ULVAC, INC.
    Inventors: Shuji Osono, Masanori Hashimoto, Shin Asari
  • Publication number: 20110204466
    Abstract: A photoelectric conversion device manufacturing method, includes: continuously forming a first p-type semiconductor layer, a first i-type semiconductor layer, and a first n-type semiconductor layer, which constitute a first-photoelectric conversion unit, and a second p-type semiconductor layer which constitutes a second-photoelectric conversion unit, in decompression chambers that are different from each other; exposing the second p-type semiconductor layer to an air atmosphere; and forming a second i-type semiconductor layer and a second n-type semiconductor layer, which constitute the second-photoelectric conversion unit, on the second p-type semiconductor layer of the second-photoelectric conversion unit which was exposed to the air atmosphere, in the same decompression chamber.
    Type: Application
    Filed: August 28, 2009
    Publication date: August 25, 2011
    Applicant: ULVAC, INC.
    Inventors: Shinichi Asahina, Hirota Uchida, Shin Asari, Masanori Hashimoto, Tetsushi Fujinaga, Tadamasa Kobayashi, Masafumi Wakai, Kenichi Imakita, Yoshinobu Ue, Kazuya Saito, Kyuzo Nakamura
  • Publication number: 20110180402
    Abstract: To provide a vacuum processing apparatus capable of supporting and conveying a substrate by a method suitable for a processing content in each processing step and capable of suppressing various mechanisms provided within a processing chamber from being adversely affected. More particularly, the CVD chamber of the apparatus is configured to be horizontal, and hence the above-mentioned problem can be solved. Further, by configuring a sputtering apparatus as the vertical type processing apparatus, problems with abnormal electrical discharge can be solved.
    Type: Application
    Filed: October 7, 2009
    Publication date: July 28, 2011
    Applicant: ULVAC, INC.
    Inventors: Takaomi Kurata, Junya Kiyota, Makoto Arai, Yasuhiko Akamatsu, Satoru Ishibashi, Shin Asari, Kazuya Saito, Shigemitsu Sato, Masashi Kikuchi
  • Publication number: 20110030780
    Abstract: A solar cell includes: a substrate having optical transparency; a photoelectric converter provided on the substrate, including a top-face electrode having optical transparency, a photoelectric conversion layer, and a back-face electrode having light reflectivity; and a low-refractive conductive layer whose refractive index is less than or equal to 2.0, the low-refractive conductive layer being made of a conductive material having optical transparency, being adjacent to the photoelectric conversion layer, and being disposed on a side of the photoelectric conversion layer opposite to the substrate.
    Type: Application
    Filed: April 24, 2009
    Publication date: February 10, 2011
    Applicant: ULVAC, INC.
    Inventors: Miwa Watai, Kazuya Saito, Takashi Komatsu, Yoshio Ide, Shin Asari, Yusuke Mizuno, Miho Shimizu
  • Publication number: 20100330363
    Abstract: A resin substrate of the present invention has a resin layer and a surface layer formed on a surface of the resin layer, wherein the surface layer is a layer comprising silicon nitride as a main component and deposited by the chemical vapor deposition method, and at the interface between the resin layer and the surface layer, at the interface between the resin layer and the surface layer, an interfacial region over which a percentage changes from 80% to 20% has a thickness of not more than 25 nm, wherein the difference between the maximum nitrogen concentration in the surface layer and the steady-state nitrogen concentration in the resin layer is taken as 100%. The surface layer has an average surface roughness (Ra) of not more than 1 nm. The resin substrate has properties of water vapor barrier and surface flatness.
    Type: Application
    Filed: June 27, 2008
    Publication date: December 30, 2010
    Applicants: ULVAC, INC., UBE INDUSTRIES, LTD.
    Inventors: Tetsushi Fujinaga, Makiko Takagi, Masanori Hashimoto, Shin Asari, Ryuji Oyama
  • Publication number: 20100301339
    Abstract: [Object] To provide a method of producing a thin film transistor superior in productivity and capable of preventing variation in transistor characteristics among devices from occurring to improve carrier mobility, and a thin film transistor. [Solving Means] In a method of producing a thin-film transistor according to the present invention, a solid-state green laser is irradiated onto a channel portion of an amorphous silicon film using a source electrode film and a drain electrode film as masks, thereby improving mobility. Since the channel portion of the amorphous silicon film is crystallized by the irradiation of the solid-state green laser, laser oscillation characteristics can be more stable than in a conventional method that uses an excimer laser. Further, laser irradiation onto a large-size substrate at uniform output characteristics in plane becomes possible, with the result that a variation in crystallinity of channel portions among devices can be avoided.
    Type: Application
    Filed: December 12, 2008
    Publication date: December 2, 2010
    Applicant: ULVAC, INC.
    Inventors: Taro Morimura, Toru Kikuchi, Masanori Hashimoto, Shin Asari, Kazuya Saito, Kyuzo Nakamura
  • Publication number: 20080050523
    Abstract: To provide a unit-layer post-treatment catalyst vapor-deposition apparatus and unit-layer post-treatment film forming method capable of improving in-face uniformity, step coverage, and film quality of a silicon nitride film or the like and forming a thin film by performing surface treatment after forming a film for each unit layer.
    Type: Application
    Filed: March 25, 2005
    Publication date: February 28, 2008
    Inventors: Makiko Kitazoe, Hiromi Itho, Shin Asari, Kazuya Saito
  • Publication number: 20070209677
    Abstract: Provided is a self-cleaning catalytic chemical vapor deposition apparatus which suppresses the corrosion-induced degradation of a catalytic body by a cleaning gas without heating a catalytic body to not less than 2000° C. and permits practical cleaning rates and good cleaning at low cost. With conductors 5a, 5b which supply a constant current to a catalytic body 4 within a reaction chamber 2 from a heating power supply 6 and terminals 6a, 6b of the heating power supply 6 kept electrically insulated from the reaction chamber 2, a cleaning gas containing halogen elements is introduced into the reaction chamber 2 which has been evacuated, and the catalytic body 4 is heated by the energization from the heating power supply 6. An active species generated by this heating is caused to react with an adhering film which adheres to the interior of the reaction chamber 2, whereby the adhering film is removed.
    Type: Application
    Filed: March 10, 2005
    Publication date: September 13, 2007
    Inventors: Makiko Kitazoe, Shuji Osono, Hiromi Itoh, Kazuya Saito, Shin Asari
  • Publication number: 20040007247
    Abstract: In a plasma film-forming apparatus which includes a film-forming chamber in which a substrate is arranged, a film-forming gas introducing pipe connected to a supply source of a film-forming gas at its first end, a shower plate through numerous holes of which a second end of said film-forming gas introducing pipe communicate with said film-forming chamber, film-gas exciting means for exciting film-forming gas introduced through said shower plate into said film-forming chamber, to form a film on the surface of said substrate with the chemical reaction, radicals-producing means which excites said cleaning gas and produces radicals, and cleaning-gas introducing means which introduces said cleaning gas containing said radicals into said film-forming chamber, the improvement in which said cleaning-gas introducing means communicate directly with said film-forming chamber.
    Type: Application
    Filed: May 28, 2003
    Publication date: January 15, 2004
    Applicant: ULVAC, Inc.
    Inventors: Shin Asari, Naoto Tsuji, Takaomi Kurata, Kazuaki Yamauchi, Masanori Hashimoto, Michio Ishikawa, Masayasu Hirata, Katsuhiko Mori
  • Publication number: 20020124866
    Abstract: In a plasma film-forming apparatus which includes a film-forming chamber in which a substrate is arranged, a film-forming gas introducing pipe connected to a supply source of a film-forming gas at its first end, a shower plate through numerous holes of which a second end of said film-forming gas introducing pipe communicate with said film-forming chamber, film-gas exciting means for exciting film-forming gas introduced through said shower plate into said film-forming chamber, to form a film on the surface of said substrate with the chemical reaction, radicals-producing means which excites said cleaning gas and produces radicals, and cleaning-gas introducing means which introduces said cleaning gas containing said radicals into said film-forming chamber, the improvement in which said cleaning-gas introducing means communicate directly with said film-forming chamber.
    Type: Application
    Filed: August 17, 2001
    Publication date: September 12, 2002
    Applicant: ULVAC, Inc.
    Inventors: Shin Asari, Naoto Tsuji, Takaomi Kurata, Kazuaki Yamauchi, Masanori Hashimoto, Michio Ishikawa, Masayasu Hirata, Katsuhiko Mori
  • Patent number: 4661420
    Abstract: An enhancement of the Kerr rotation angle is obtained in a magnetic recording member by providing an amorphous layer of Si, Ge, or alloy thereof. Such layer may further contain any of the following additional elements: H, C, F, N and O.
    Type: Grant
    Filed: February 5, 1985
    Date of Patent: April 28, 1987
    Assignee: Nihon Shinku Gijutsu Kabushiki Kaisha
    Inventors: Kyuzo Nakamura, Yoshifumi Ota, Shin Asari, Tsutomu Asaka