Patents by Inventor Kei Hattori

Kei Hattori 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: 20140242732
    Abstract: An ion implantation apparatus according to an embodiment includes an ion implantation unit, a position detection unit, a charge supply unit, a current value detection unit, and a determination unit. The ion implantation unit scans the surface of a substrate with an ion beam containing positively charged ions and implants the ions into the substrate. The position detection unit detects the scan position of the ion beam on the substrate. The charge supply unit generates a plasma, emits electrons contained in the plasma, and supplies the electrons to the substrate. The current value detection unit detects a current value that changes in accordance with the amount of electrons emitted by the charge supply unit. The determination unit determines the charge build-up state of the substrate based on a change in the current value, the change being accompanied by a change in the scan position.
    Type: Application
    Filed: September 11, 2013
    Publication date: August 28, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masayuki Jinguuji, Kei Hattori, Keiji Fujita, Takahito Nagamatsu
  • Publication number: 20140226927
    Abstract: Provided is a sliding bearing that has a simple, easy-to-manufacture structure, does not require an insulating sleeve or the like, is not affected by the material or surface roughness of a roller against which the bearing slides, exhibits low friction torque and low wear, tolerates moment loads, and is easy to replace; as well as an image forming apparatus using the bearing.
    Type: Application
    Filed: September 20, 2012
    Publication date: August 14, 2014
    Inventors: Takuya Ishii, Ikuma Fujitsuka, Kei Hattori, Kazuo Hirose, Satoru Fukuzawa
  • Patent number: 8021565
    Abstract: A surface treatment method includes: removing a fluorocarbon-containing reaction product from a surface of a workpiece by oxygen gas plasma processing. The workpiece includes a plurality of layers. The fluorocarbon-containing reaction product is deposited by successively etching the layers of the workpiece. The method further includes after removing the reaction product, removing an oxide-containing reaction product from the surface of the workpiece using hydrogen fluoride gas.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: September 20, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Katsuaki Aoki, Naoya Hayamizu, Kei Hattori, Yukihiro Oka, Hidemi Kanetaka, Makoto Hasegawa
  • Publication number: 20110223769
    Abstract: According to one embodiment, a method of fabricating a semiconductor device, including, selectively forming a first film as a core member on a film to be processed, forming a second film on a side surface and an upper surface of the core member, and on an upper surface of the film to be processed to cover the film, the second film which is constituted with same material as the first film and is doped with impurities being different in amount from impurities in the first film, removing the second film on the core member and on the film to be processed to form a sidewall mask constituted with the second film on the side surface of the core member, selectively removing the core member, and etching the film to be processed using the sidewall mask film as a mask.
    Type: Application
    Filed: February 14, 2011
    Publication date: September 15, 2011
    Inventors: Nikka Ko, Katsunori Yahashi, Kei Hattori
  • Publication number: 20090000640
    Abstract: A surface treatment method includes: removing a fluorocarbon-containing reaction product from a surface of a workpiece by oxygen gas plasma processing. The workpiece includes a plurality of layers. The fluorocarbon-containing reaction product is deposited by successively etching the layers of the workpiece. The method further includes after removing the reaction product, removing an oxide-containing reaction product from the surface of the workpiece using hydrogen fluoride gas.
    Type: Application
    Filed: March 24, 2008
    Publication date: January 1, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Katsuaki Aoki, Naoya Hayamizu, Kei Hattori, Yukihiro Oka, Hidemi Kanetaka, Makoto Hasegawa
  • Patent number: 6274507
    Abstract: A semiconductor processing apparatus includes a load chamber, an unload chamber, a common transfer chamber, a first process chamber, and a second process chamber, which are connected via gate valves. The load and unload chambers are connected to a first vacuum-exhaust mechanism including a common dry pump. The common transfer chamber is connected to a second vacuum-exhaust mechanism including a dry pump. The first and second processes chambers are connected to a third vacuum-exhaust mechanism including a common dry pump, and first and second turbo molecular pumps. The processing apparatus includes a controller which can drive and stop the dry pumps independently of each other in coordination with open/closed switching of the gate valves, while keeping the turbo molecular pumps driven.
    Type: Grant
    Filed: January 7, 1999
    Date of Patent: August 14, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masaki Narita, Yukimasa Yoshida, Kei Hattori, Katsuya Okumura
  • Patent number: 5851641
    Abstract: The present invention is to provide an electrostatic chucking device having improved heat conductivity and at the same time increased adsorption area and improved adsorptity as well as having no uneveness on the wafer-provided face. The electrostatic chucking device of the present invention comprises a metal base, an adhesive layer, an electrode layer comprising a metal-deposited or metal-plated layer, and an electrically insulating layer possessing a face for providing a substance to be adhered by suction, laminated thereon in this order.
    Type: Grant
    Filed: April 29, 1997
    Date of Patent: December 22, 1998
    Assignees: Tomoegawa Paper Co., Ltd., Kabushiki Kaisha Toshiba
    Inventors: Tadao Matsunaga, Takaya Matsushita, Kei Hattori
  • Patent number: 5846886
    Abstract: A metal film etching method etches selectively a metal film formed on a layer insulating film provided with viaholes so as to cover the surface of the layer insulating film and fill up the viaholes so that the metal film excluding portions there of filling up the viaholes are removed completely without forming a pit in the portions of the metal film filling up the viaholes. The metal film etching method uses a mixed reactive gas of a gas containing fluorine atoms, a gas containing chlorine atoms and oxygen gas.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: December 8, 1998
    Assignees: Kabushiki Kaisha Toshiba, Shibaura Engineering Works Co., Ltd.
    Inventors: Kei Hattori, Akira Kobayashi, Mikio Nonaka, Makoto Muto, Masaru Kasai, Toshiyasu Onoda, Tomoaki Yoshimori
  • Patent number: 5645921
    Abstract: The present invention is to provide an electrostatic chucking device having improved heat conductivity and at the same time increased adsorption area and improved adsorptity as well as having no uneveness on the wafer-provided face. The electrostatic chucking device of the present invention comprises a metal base, an adhesive layer, an electrode layer comprising a metal-deposited or metal-plated layer, and an electrically insulating layer possessing a face for providing a substance to be adhered by suction, laminated thereon in this order.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: July 8, 1997
    Assignees: Tomoegawa Paper Co., Ltd., Kabushiki Kaisha Toshiba
    Inventors: Tadao Matsunaga, Takaya Matsushita, Kei Hattori
  • Patent number: 5411631
    Abstract: According to this invention, a dry etching method includes the step of sequentially forming an SiO.sub.2 film, an Al--Si--Cu thin film, and a photoresist on an Si substrate to sequentially form a mask pattern, the step of etching the Al--Si--Cu thin film by RIE using a gas mixture of Cl.sub.2 and BCl.sub.3 as an etching gas, and the step of removing etching residues by a sputter effect obtained by the plasma of the BCl.sub.3 gas.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: May 2, 1995
    Assignee: Tokyo Electron Limited
    Inventors: Masaru Hori, Haruo Okano, Michishige Aoyama, Masao Ito, Kei Hattori, Fumihiko Higuchi, Yoshifumi Tahara
  • Patent number: 5221450
    Abstract: Disclosed is an electrostatic chucking method, comprising the steps of: (a) placing a substrate to be chucked electrostatically on a chucking material containing an electrode; (b) chucking the substrate to the chucking material by supplying a predetermined electrical potential to the electrode in the chucking material; (c) removing the substrate from the chucking material; and (d) eliminating residual charges on the chucking material by sputtering it with a plasma gas for a predetermined period. Further, the plasma gas may be capable of etching the chucking material.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: June 22, 1993
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kei Hattori, Makoto Sekine
  • Patent number: 5161201
    Abstract: A pattern profile measuring method and apparatus for measuring the profile of a measuring portion of a pattern of a specimen placed on a specimen stage by controlling a deflector of a scanning electron microscope capable of setting a desired inclination angle of one of the specimen stage and an electron optical column, applying an electron beam to the measuring portion of the specimen, and image processing a secondary electron signal from the measuring portion.
    Type: Grant
    Filed: February 7, 1991
    Date of Patent: November 3, 1992
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuhiro Kaga, Kei Hattori, Isahiro Hasegawa, Fumio Komatsu
  • Patent number: 4785714
    Abstract: A positive-displacement fluid motor wherein a rotating member rotated by pressurized fluid flows to and from fluid chambers can be stopped at a desired one of at least one predetermined angular position by a torque produced by the motor itself. The fluid is supplied into at least one advancing fluid chamber of the fluid chambers which acts to rotate the rotating member in an operating direction of the motor, while causing the fluid to be discharged from at least one reversing fluid chamber of the fluid chambers which acts to rotate the rotating member in a direction opposite to the operating direction, if a motor stop command is generated when the desired angular position is ahead of a current position of the rotating member in the operating direction of the motor.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: November 22, 1988
    Assignee: Technol Inc.
    Inventors: Toshiro Tamada, Kei Hattori