Patents by Inventor Tsutomu Nishihashi

Tsutomu Nishihashi 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: 20230168034
    Abstract: [Object] To freeze droplets of a raw material liquid in a shorter drop distance while maintaining a cooling velocity, which is a super high speed, without deteriorating a solute or dispersoid.
    Type: Application
    Filed: April 30, 2021
    Publication date: June 1, 2023
    Inventors: Sora UEMATSU, Hiromu MATSUBAYASHI, Tsutomu NISHIHASHI, Masaki ITOU, Tsuyoshi YOSHIMOTO, Susumu ARAI, Nobuhiro MOTEGI
  • Patent number: 11112176
    Abstract: A freeze vacuum drying apparatus includes: a spraying unit; a pipe unit; a heating unit; and a collection unit. The spraying unit sprays a raw material liquid into a vacuum chamber. The pipe unit has a non-linear shape, includes a first opening end and a second opening end, and traps frozen particles via the first opening end, the frozen particles being formed by self-freezing of liquid droplets formed by spraying the raw material liquid into the vacuum chamber. The heating unit heats the frozen particles in the pipe unit for sublimation drying, the frozen particles moving in the pipe unit from the first opening end toward the second opening end by kinetic energy produced during spraying. The collection unit collects dried particles that are formed by sublimation drying of the frozen particles in the pipe unit and released from the second opening end of the pipe unit.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: September 7, 2021
    Assignee: ULVAC, INC.
    Inventors: Tsutomu Nishihashi, Haruhisa Nakano, Hirohiko Murakami, Tsuyoshi Yoshimoto, Masaki Itou, Takumi Komiya
  • Publication number: 20210080179
    Abstract: A freeze vacuum drying apparatus includes: a spraying unit; a pipe unit; a heating unit; and a collection unit. The spraying unit sprays a raw material liquid into a vacuum chamber. The pipe unit has a non-linear shape, includes a first opening end and a second opening end, and traps frozen particles via the first opening end, the frozen particles being formed by self-freezing of liquid droplets formed by spraying the raw material liquid into the vacuum chamber. The heating unit heats the frozen particles in the pipe unit for sublimation drying, the frozen particles moving in the pipe unit from the first opening end toward the second opening end by kinetic energy produced during spraying. The collection unit collects dried particles that are formed by sublimation drying of the frozen particles in the pipe unit and released from the second opening end of the pipe unit.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Inventors: Tsutomu NISHIHASHI, Haruhisa NAKANO, Hirohiko MURAKAMI, Tsuyoshi YOSHIMOTO, Masaki ITOU, Takumi KOMIYA
  • Patent number: 8791433
    Abstract: An ion implanting apparatus is provided, which can accurately measure a quantity of atoms that are implanted. The ion implanting apparatus according to the present invention has an object to be measured, and the object to be measured is arranged in an irradiating range in which ions are irradiated. When atoms are implanted into an object to be processed by irradiating ions of a processing gas and neutralized particles thereof, the object to be measured is heated through the irradiation with the processing gas ions and the neutralized particles. A control unit determines a quantity of the atoms that are implanted into the object to be processed from the temperature of the object to be measured.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: July 29, 2014
    Assignee: Ulvac, Inc.
    Inventors: Tsutomu Nishihashi, Kazuhiro Watanabe, Tadashi Morita, Kenji Sato, Tsutomu Tanaka, Takuya Uzumaki
  • Patent number: 8440551
    Abstract: A plasma doping method capable of introducing impurities into an object to be processed uniformly is supplied. Plasma of a diborane gas containing boron, which is a p-type impurity, and an argon gas, which is a rare gas, is generated, and no bias potential is applied to a silicon substrate. Thereby, the boron radicals in the plasma are deposited on the surface of the silicon substrate. After that, the supply of the diborane gas is stopped, and bias potential is applied to the silicon substrate. Thereby, the argon ions in the plasma are radiated onto the surface of the silicon substrate. The radiated argon ions collide with the boron radicals, and thereby boron radicals are introduced into the silicon substrate. The introduced boron radicals are activated by thermal processing, and thereby a p-type impurity diffusion layer is formed in the silicon substrate.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: May 14, 2013
    Assignee: ULVAC, Inc.
    Inventors: Kazuhiko Tonari, Tsutomu Nishihashi
  • Patent number: 8383496
    Abstract: A plasma doping method capable of introducing impurities into an object to be processed uniformly is supplied. Plasma of a diborane gas containing boron, which is a p-type impurity, and an argon gas, which is a rare gas, is generated, and no bias potential is applied to a silicon substrate. Thereby, the boron radicals in the plasma are deposited on the surface of the silicon substrate. After that, the supply of the diborane gas is stopped, and bias potential is applied to the silicon substrate. Thereby, the argon ions in the plasma are radiated onto the surface of the silicon substrate. The radiated argon ions collide with the boron radicals, and thereby boron radicals are introduced into the silicon substrate. The introduced boron radicals are activated by thermal processing, and thereby a p-type impurity diffusion layer is formed in the silicon substrate.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: February 26, 2013
    Inventors: Kazuhiko Tonari, Tsutomu Nishihashi
  • Publication number: 20120220096
    Abstract: A plasma doping method capable of introducing impurities into an object to be processed uniformly is supplied. Plasma of a diborane gas containing boron, which is a p-type impurity, and an argon gas, which is a rare gas, is generated, and no bias potential is applied to a silicon substrate. Thereby, the boron radicals in the plasma are deposited on the surface of the silicon substrate. After that, the supply of the diborane gas is stopped, and bias potential is applied to the silicon substrate. Thereby, the argon ions in the plasma are radiated onto the surface of the silicon substrate. The radiated argon ions collide with the boron radicals, and thereby boron radicals are introduced into the silicon substrate. The introduced boron radicals are activated by thermal processing, and thereby a p-type impurity diffusion layer is formed in the silicon substrate.
    Type: Application
    Filed: May 11, 2012
    Publication date: August 30, 2012
    Inventors: Kazuhiko Tonari, Tsutomu Nishihashi
  • Publication number: 20110248182
    Abstract: An ion implanting apparatus is provided, which can accurately measure a quantity of atoms that are implanted. The ion implanting apparatus according to the present invention has an object to be measured, and the object to be measured is arranged in an irradiating range in which ions are irradiated. When atoms are implanted into an object to be processed by irradiating ions of a processing gas and neutralized particles thereof, the object to be measured is heated through the irradiation with the processing gas ions and the neutralized particles. A control unit determines a quantity of the atoms that are implanted into the object to be processed from the temperature of the object to be measured.
    Type: Application
    Filed: April 28, 2011
    Publication date: October 13, 2011
    Applicant: ULVAC, INC.
    Inventors: Tsutomu Nishihashi, Kazuhiro Watanabe, Tadashi Morita, Kenji Sato, Tsutomu Tanaka, Takuya Uzumaki
  • Publication number: 20110242700
    Abstract: The following abstract replace prior abstract in the application. It is an object to provide a simple and practical method capable of producing a magnetic storage medium of a type such as a bit-patterned type, a magnetic storage medium of the above-mentioned type and an information storage device which may be produced by such a simple and practical method, and in a method of producing a magnetic disk, there are performed: a film-forming process of forming, on a glass substrate 61, a magnetic film 62 so that the Curie temperature becomes 600 K or lower; and an ion injection process (C) of injecting ions locally into an area other than a predetermined protected area on the magnetic film 62.
    Type: Application
    Filed: December 22, 2009
    Publication date: October 6, 2011
    Applicant: ULVAC, INC.
    Inventors: Kenji Sato, Tsutomu Tanaka, Takuya Uzumaki, Tsutomu Nishihashi, Tadashi Morita, Kazuhiro Watanabe
  • Publication number: 20110212272
    Abstract: A magnetic recording medium having a high magnetic pattern contrast is manufactured. By changing an acceleration voltage that accelerates ions in a process gas, depths (peak depths D0 and D1) from a magnetic layer 44, at which an injection amount of a target element is the maximum, can be made with set depths even if a film thickness of an ion permeation portion 48, which is a thin film portion of a resist 49, decreases. Since the set depths are achieved for the peak depths D0 and D1, a portion to be processed 43 of the magnetic film 44 is made non-magnetized from a top surface to a bottom surface, and a magnetic portion is separated; thus, the magnetic recording medium with a high magnetic pattern contrast can be obtained.
    Type: Application
    Filed: March 16, 2011
    Publication date: September 1, 2011
    Applicant: ULVAC, INC.
    Inventors: Tsutomu NISHIHASHI, Kazuhiro Watanabe, Tadashi Morita, Kenji Sato, Tsutomu Tanaka, Takuya Uzumaki
  • Publication number: 20110205663
    Abstract: It is an object to produce a magnetic storage medium of a high recording density by a production method that does not impair mass productivity, and a magnetic storage medium 10 is produced by a production method including: a magnetic-film forming step of forming a magnetic film 61 on a substrate 62; and a dots separating step of reducing saturation magnetization by locally injecting mixed ions of N2+ ion and N+ ion into an area, of the substrate 62, other than plural areas which respectively become magnetic dots 62c where information is to be magnetically recorded, thereby forming, between the magnetic dots 62c, a between-dot separator 62d having saturation magnetization smaller than saturation magnetization of the magnetic dots 62c.
    Type: Application
    Filed: September 30, 2009
    Publication date: August 25, 2011
    Applicant: ULVAC, INC.
    Inventors: Kenji Sato, Tsutomu Tanaka, Takuya Uzumaki, Tsutomu Nishihashi, Tadashi Morita, Kazuhiro Watanabe
  • Publication number: 20110194207
    Abstract: It is an object to provide a simple method capable of producing a magnetic storage medium, a magnetic storage medium and an information storage device which may be produced by a simple production method with a high recording density, and a magnetic disk is produced by a production method having: a film-forming process of forming, on a substrate 61, a magnetic film made of a Co—Cr—Pt alloy and having a thickness of less than 10 nm; and an ion injection process of forming, by reducing saturation magnetization by locally injecting ions into a point other than plural points that become magnetic dots on each of which information is magnetically recorded, a between-dot separator having saturation magnetization smaller than saturation magnetization of the magnetic dots, between the magnetic dots.
    Type: Application
    Filed: November 18, 2009
    Publication date: August 11, 2011
    Applicant: ULVAC, INC.
    Inventors: Kenji Sato, Tsutomu Tanaka, Takuya Uzumaki, Tsutomu Nishihashi, Tadashi Morita, Kazuhiro Watanabe
  • Publication number: 20110186225
    Abstract: A magnetic recording medium is manufactured without the disappearance of the surface of a substrate that comprises a magnetic recording layer by ion milling and without being influenced by the atmosphere. A magnetic recording medium manufacturing device manufactures a magnetic recording medium by implanting an ion beam into a substrate that comprises a magnetic recording layer and removing by ashing the surface of the substrate that comprises the magnetic recording layer after the ion beam is implanted. The magnetic recording medium manufacturing device comprising an ion implantation chamber for implanting the ion beam into the substrate that comprises the magnetic recording layer coated with a resist film or a metal mask, and an ashing chamber for removing, by ashing, with plasma, the resist film or the metal mask of the substrate that comprises the magnetic recording layer coated with the resist film or the metal mask. The ion implantation chamber and the ashing chamber are coupled in a vacuum state.
    Type: Application
    Filed: July 21, 2009
    Publication date: August 4, 2011
    Applicant: ULVAC, INC.
    Inventors: Tsutomu Nishihashi, Tadashi Morita, Kazuhiro Watanabe, Kenji Sato, Takuya Uzumaki, Tsutomu Tanaka
  • Publication number: 20110129977
    Abstract: A plasma doping method capable of introducing impurities into an object to be processed uniformly is supplied. Plasma of a diborane gas containing boron, which is a p-type impurity, and an argon gas, which is a rare gas, is generated, and no bias potential is applied to a silicon substrate. Thereby, the boron radicals in the plasma are deposited on the surface of the silicon substrate. After that, the supply of the diborane gas is stopped, and bias potential is applied to the silicon substrate. Thereby, the argon ions in the plasma are radiated onto the surface of the silicon substrate. The radiated argon ions collide with the boron radicals, and thereby boron radicals are introduced into the silicon substrate. The introduced boron radicals are activated by thermal processing, and thereby a p-type impurity diffusion layer is formed in the silicon substrate.
    Type: Application
    Filed: August 7, 2009
    Publication date: June 2, 2011
    Inventors: Kazuhiko Tonari, Tsutomu Nishihashi
  • Publication number: 20110122526
    Abstract: A manufacturing method of a magnetic recording medium includes: forming a magnetic film having an artificial lattice structure by laminating plural types of atomic layers alternately on a substrate; and separating dots, which forms a dot separation band by implanting an ion, to reduce saturation magnetization locally, into portions of the magnetic film other than plural portions of the magnetic film. Each of the plural portions is made into a magnetic dot in which information is to be magnetically recorded. The saturation magnetization of the dot separation band is smaller than that of the magnetic dot.
    Type: Application
    Filed: July 16, 2009
    Publication date: May 26, 2011
    Applicant: ULVAC, INC.
    Inventors: Kenji Sato, Tsutomu Tanaka, Tsutomu Nishihashi, Tadashi Morita, Kazuhiro Watanabe
  • Patent number: 7847271
    Abstract: An ion implanter for manufacturing a single crystal film by extracting a hydrogen ion or a rare-gas ion from an ion source, selects a desired ion with a first sector electromagnet, scanning the ion with a scanner, collimates the ion with a second sector electromagnet, and implants it into a substrate; the ion source is configured to be located close to the entrance side focal point of the first sector electromagnet. In this case, when an aperture of an extraction section of the ion source is circular and entrance side focal points in a deflection surface and a surface perpendicular thereto in the first sector electromagnet are coincident, the ion beam after passing the first sector electromagnet becomes completely parallel in the two surfaces and the spot shape becomes a circle.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: December 7, 2010
    Assignee: Ulvac Inc.
    Inventors: Seiji Ogata, Ryota Fukui, Hidekazu Yokoo, Tsutomu Nishihashi
  • Patent number: 7511288
    Abstract: To provide an ion implantation device which suppresses diffusion of an ion beam, can finely control a scanning waveform and can obtain a large scanning angle of about 10°. In the ion implantation device, first, second and third chambers 12A, 14A and 16A are arranged in predetermined places on a beam line, first and second gaps 20A and 22A intervene between the first chamber 12A and the second chamber 14A and between the second chamber 14A and the third chamber 16A, the second chamber 14A is electrically insulated from the first and third chambers 12A and 16A via first and second electrode pairs 26A and 28A attached to the first and second gaps 20A and 22A, respectively, the first and second electrode pairs 26A and 28A obliquely cross a standard axis J of the ion beam at a predetermined angle in opposite directions, and the second chamber 14 is connected to a scanning power source 40A which applies an electric potential having desired scanning waveform.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: March 31, 2009
    Assignee: Ulvac Co., Ltd
    Inventors: Seiji Ogata, Yuzo Sakurada, Masayuki Sekiguchi, Tsutomu Nishihashi
  • Publication number: 20090072164
    Abstract: An ion implanter for manufacturing a single crystal film by extracting a hydrogen ion or a rare-gas ion from an ion source, selects a desired ion with a first sector electromagnet, scanning the ion with a scanner, collimates the ion with a second sector electromagnet, and implants it into a substrate; the ion source is configured to be located close to the entrance side focal point of the first sector electromagnet. In this case, when an aperture of an extraction section of the ion source is circular and entrance side focal points in a deflection surface and a surface perpendicular thereto in the first sector electromagnet are coincident, the ion beam after passing the first sector electromagnet becomes completely parallel in the two surfaces and the spot shape becomes a circle.
    Type: Application
    Filed: February 15, 2007
    Publication date: March 19, 2009
    Applicant: ULVAC INC.
    Inventors: Seiji Ogata, Ryota Fukui, Hidekazu Yokoo, Tsutomu Nishihashi
  • Publication number: 20080054192
    Abstract: An ion implantation device that suppresses diffusion of an ion beam, can finely control a scanning waveform, and can obtain a large scanning angle of about 10°. In the ion implantation device, first, second, and third chambers are arranged in predetermined places on a beam line, first and second gaps intervene between the first chamber and the second chamber and between the second chamber and the third chamber. The second chamber is electrically insulated from the first and third chambers via first and second electrode pairs attached to the first and second gaps, respectively. The first and second electrode pairs obliquely cross a standard axis of the ion beam at a predetermined angle in opposite directions, and the second chamber is connected to a scanning power source that applies an electric potential having a desired scanning waveform.
    Type: Application
    Filed: November 14, 2005
    Publication date: March 6, 2008
    Applicant: ULVAC CO., LTD.
    Inventors: Seiji Ogata, Yuzo Sakurada, Masayuki Sekiguchi, Tsutomu Nishihashi
  • Publication number: 20060042059
    Abstract: The present invention provides a vibration isolation system which can prevent transmission of vibration from a transfer unit or other unit to a vacuum chamber, and can accurately perform positioning of the vacuum chamber connected to an elastic member having a simple structure and a transfer space therein. The present invention includes a vacuum chamber (11) placed on a vibration isolation unit, a transfer chamber (13) having a transfer space through which a work is transferred into the vacuum chamber (11), an elastic member (15) for connecting the vacuum chamber (11) and the transfer chamber (13), an actuator (24, 24) for elastically supporting the vacuum chamber (11) with respect to a fixed-side member, a position sensor (22) for detecting a displacement of the vacuum chamber (11) with respect to the fixed-side member, and a control unit (23) for controlling the actuator (24) based on output of the position sensor.
    Type: Application
    Filed: October 8, 2004
    Publication date: March 2, 2006
    Applicant: EBARA CORPORATION
    Inventors: Ichiju Satoh, Setsuji Shinoda, Yoshinori Jono, Tsutomu Nishihashi