Patents by Inventor Tomohiro Ikegami

Tomohiro Ikegami 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: 20190284091
    Abstract: Provided is a display cover member that enables realization of a display having less reflection of the background and excellent anti-sparkle properties. The display cover member has a feature that: one of principal surfaces is formed of an uneven surface; a mean width of roughness profile elements (RSm) of the uneven surface defined by JIS B 0601-2013 is not less than 1 ?m and not more than 30 ?m; and a ratio ?/Rku between an average inclined angle (?) of the roughness profile of the uneven surface and a kurtosis of the roughness profile (Rku) of the uneven surface defined by JIS B 0601-2013 is not less than 0.40° and not more than 1.08°.
    Type: Application
    Filed: June 5, 2019
    Publication date: September 19, 2019
    Inventors: Koji IKEGAMI, Tomohiro NAGAKANE
  • Patent number: 10092853
    Abstract: A method of the present invention for producing a halohydantoin compound by refining, in a dryer (1), a composition containing at least one of water and elemental halogen, an organic solvent, and the halohydantoin compound, the method includes the steps of: (i) removing the organic solvent from the composition; and (ii) removing the at least one of the water and the elemental halogen from the composition refined in the step (i).
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: October 9, 2018
    Assignee: NIPPOH CHEMICALS CO., LTD.
    Inventors: Tomohiro Ikegami, Yukihiko Hanamura, Shinji Uchikoshi
  • Patent number: 9962624
    Abstract: A method of the present invention for producing a halohydantoin compound by refining, in a dryer (1), a composition containing at least one of water and elemental halogen, an organic solvent, and the halohydantoin compound, the method includes the steps of: (i) removing the organic solvent from the composition; and (ii) removing the at least one of the water and the elemental halogen from the composition refined in the step (i).
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: May 8, 2018
    Assignee: NIPPOH CHEMICALS CO., LTD.
    Inventors: Tomohiro Ikegami, Yukihiko Hanamura, Shinji Uchikoshi
  • Patent number: 9855514
    Abstract: A method of the present invention for producing a halohydantoin compound by refining, in a dryer (1), a composition containing at least one of water and elemental halogen, an organic solvent, and the halohydantoin compound, the method includes the steps of: (i) removing the organic solvent from the composition; and (ii) removing the at least one of the water and the elemental halogen from the composition refined in the step (i).
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: January 2, 2018
    Assignee: NIPPOH CHEMICALS CO., LTD.
    Inventors: Tomohiro Ikegami, Yukihiko Hanamura, Shinji Uchikoshi
  • Patent number: 9834517
    Abstract: A method for producing a halohydantoin compound according to the present invention includes the steps of: (a) providing, in a dryer, a composition containing (i) at least one component selected from the group consisting of water, an organic solvent, and elemental halogen and (ii) a halohydantoin compound; and (b) drying the composition under reduced pressure in the dryer, the reduced pressure being reduced to a pressure lower than atmospheric pressure while introducing an inert gas from an outside source into the dryer.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: December 5, 2017
    Assignee: NIPPOH CHEMICALS CO., LTD.
    Inventors: Tomohiro Ikegami, Yukihiko Hanamura, Kazuhisa Inoue
  • Publication number: 20170056786
    Abstract: A method of the present invention for producing a halohydantoin compound by refining, in a dryer (1), a composition containing at least one of water and elemental halogen, an organic solvent, and the halohydantoin compound, the method includes the steps of: (i) removing the organic solvent from the composition; and (ii) removing the at least one of the water and the elemental halogen from the composition refined in the step (i).
    Type: Application
    Filed: November 14, 2016
    Publication date: March 2, 2017
    Inventors: Tomohiro Ikegami, Yukihiko Hanamura, Shinji Uchikoshi
  • Publication number: 20170057927
    Abstract: A method of the present invention for producing a halohydantoin compound by refining, in a dryer (1), a composition containing at least one of water and elemental halogen, an organic solvent, and the halohydantoin compound, the method includes the steps of: (i) removing the organic solvent from the composition; and (ii) removing the at least one of the water and the elemental halogen from the composition refined in the step (i).
    Type: Application
    Filed: November 14, 2016
    Publication date: March 2, 2017
    Inventors: Tomohiro Ikegami, Yukihiko Hanamura, Shinji Uchikoshi
  • Publication number: 20150344438
    Abstract: A method for producing a halohydantoin compound according to the present invention includes the steps of: (a) providing, in a dryer, a composition containing (i) at least one component selected from the group consisting of water, an organic solvent, and elemental halogen and (ii) a halohydantoin compound; and (b) drying the composition under reduced pressure in the dryer, the reduced pressure being reduced to a pressure lower than atmospheric pressure while introducing an inert gas from an outside source into the dryer.
    Type: Application
    Filed: November 15, 2013
    Publication date: December 3, 2015
    Inventors: Tomohiro Ikegami, Yukihiko Hanamura, Kazuhisa Inoue
  • Publication number: 20150299137
    Abstract: A method of the present invention for producing a halohydantoin compound by refining, in a dryer (1), a composition containing at least one of water and elemental halogen, an organic solvent, and the halohydantoin compound, the method includes the steps of: (i) removing the organic solvent from the composition; and (ii) removing the at least one of the water and the elemental halogen from the composition refined in the step (i).
    Type: Application
    Filed: November 15, 2013
    Publication date: October 22, 2015
    Inventors: Tomohiro Ikegami, Yukihiko Hanamura, Shinji Uchikoshi
  • Patent number: 7813066
    Abstract: A magnetic recording and reproduction method includes the steps of recording a plurality of tracks which make a unit for a signal process for data detection by means of a recording head on a magnetic recording medium, and reproducing signals of the plural tracks by a plural number of times in different positional relationships to the tracks by means of a reproduction head which can reproduce a signal across the plural tracks of the magnetic recording medium, collecting the reproduction signals in the unit and performing a signal process for the unit to produce reproduction signals for the individual tracks.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: October 12, 2010
    Assignee: Sony Corporation
    Inventors: Toshiyuki Nakagawa, Hiroyuki Ino, Tomoyuki Hiura, Tomohiro Ikegami, Masaaki Hara, Norihito Mihota, Shinichi Fukuda, Yoshihiko Deoka, Hidetoshi Honda
  • Patent number: 7636219
    Abstract: A magnetic recording and reproducing apparatus is disclosed which includes: a recording device configured to record with a write head a plurality of tracks constituting a unit of signal processing for data detection, to magnetic recording media; a reproduction device configured to reproduce with a read head a plurality of reproduction signals concurrently from the plurality of tracks on the magnetic recording media in different positional relations to the tracks, the reproduction signals being arranged into that one unit for signal processing thereby generating the track-specific reproduction signals; and a phase alignment device configured to align phases of record signals between adjacent tracks among the plurality of tracks recorded by the recording device to the magnetic recording media.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: December 22, 2009
    Assignee: Sony Corporation
    Inventors: Tomohiro Ikegami, Hiroyuki Ino, Toshiyuki Nakagawa, Tomoyuki Hiura, Norihito Mihota, Masaaki Hara, Yoshihiko Deoka, Hidetoshi Honda, Shinichi Fukuda
  • Patent number: 7586705
    Abstract: A magnetic recording/reproducing apparatus is disclosed wherein reproduced signals read out from a plurality of recording tracks using a reproducing head can be separated into original recording signals of the recording tracks. Upon recording, an identification signal which has a recording wavelength equal to or greater than a minimum recording wavelength and causes no interference of any of the recording tracks with any adjacent one of the recording tracks is appended to and recorded together with a recording signal in order to allow, upon reproduction, acquisition of the position information of the reproducing head with respect to the plural recording tracks of the magnetic recording medium. Upon reproduction, a reproduced signal for each of the recording tracks of the magnetic recording medium is generated on the basis of the positional information read from the recording tracks.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: September 8, 2009
    Assignee: Sony Corporation
    Inventors: Tomoyuki Hiura, Hiroyuki Ino, Toshiyuki Nakagawa, Norihito Mihota, Tomohiro Ikegami, Shinichi Fukuda, Yoshihiko Deoka, Hidetoshi Honda, Masaaki Hara
  • Publication number: 20070242378
    Abstract: A magnetic recording and reproducing apparatus is disclosed which includes: a recording device configured to record with a write head a plurality of tracks constituting a unit of signal processing for data detection, to magnetic recording media; a reproduction device configured to reproduce with a read head a plurality of reproduction signals concurrently from the plurality of tracks on the magnetic recording media in different positional relations to the tracks, the reproduction signals being arranged into that one unit for signal processing thereby generating the track-specific reproduction signals; and a phase alignment device configured to align phases of record signals between adjacent tracks among the plurality of tracks recorded by the recording device to the magnetic recording media.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 18, 2007
    Inventors: Tomohiro Ikegami, Hiroyuki Ino, Toshiyuki Nakagawa, Tomoyuki Hiura, Norihito Mihota, Masaaki Hara, Yoshihiko Deoka, Hidetoshi Honda, Shinichi Fukuda
  • Publication number: 20070242377
    Abstract: A magnetic recording/reproducing apparatus is disclosed wherein reproduced signals read out from a plurality of recording tracks using a reproducing head can be separated into original recording signals of the recording tracks. Upon recording, an identification signal which has a recording wavelength equal to or greater than a minimum recording wavelength and causes no interference of any of the recording tracks with any adjacent one of the recording tracks is appended to and recorded together with a recording signal in order to allow, upon reproduction, acquisition of the position information of the reproducing head with respect to the plural recording tracks of the magnetic recording medium. Upon reproduction, a reproduced signal for each of the recording tracks of the magnetic recording medium is generated on the basis of the positional information read from the recording tracks.
    Type: Application
    Filed: March 23, 2007
    Publication date: October 18, 2007
    Inventors: Tomoyuki Hiura, Hiroyuki Ino, Toshiyuki Nakagawa, Norihito Mihota, Tomohiro Ikegami, Shinichi Fukuda, Yoshihiko Deoka, Hidetoshi Honda, Masaaki Hara
  • Publication number: 20070242376
    Abstract: A magnetic recording and reproduction method includes the steps of recording a plurality of tracks which make a unit for a signal process for data detection by means of a recording head on a magnetic recording medium, and reproducing signals of the plural tracks by a plural number of times in different positional relationships to the tracks by means of a reproduction head which can reproduce a signal across the plural tracks of the magnetic recording medium, collecting the reproduction signals in the unit and performing a signal process for the unit to produce reproduction signals for the individual tracks.
    Type: Application
    Filed: March 21, 2007
    Publication date: October 18, 2007
    Inventors: Toshiyuki Nakagawa, Hiroyuki Ino, Tomoyuki Hiura, Tomohiro Ikegami, Masaaki Hara, Norihito Mihota, Shinichi Fukuda, Yoshihiko Deoka, Hidetoshi Honda
  • Patent number: 6813109
    Abstract: A rotary magnetic head apparatus which can be formed into a smaller size in which signals of a plurality of recording tracks which are recorded on a tape-like information recording medium are reproduced by using a plurality of reproduction heads without depending on the arrangement of the recording tracks in the information recording medium. The rotary magnetic head apparatus includes a rotary drum, a fixed drum, a reproduction signal selection device, a rotor reproduction signal wiring section, and a stator reproduction signal wiring section.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: November 2, 2004
    Assignee: Sony Corporation
    Inventors: Tadashi Ozue, Toshio Shirai, Tomohiro Ikegami, Takehiko Saito
  • Publication number: 20040120082
    Abstract: A method and apparatus for enhancing thermal stability, improving biasing and reducing damage from electrical surges in self-pinned abutted junction heads. The head includes a free layer having a first end and a second end defining a width selected to form a desired trackwidth and an extended self-pinned bias layer extending beyond the ends of the free layer, the self-pinned bias layer extending beyond the free layer increasing the volume of the extended self-pinned bias layer to provide greater thermal stability and stronger pinning of the free layer.
    Type: Application
    Filed: July 29, 2003
    Publication date: June 24, 2004
    Applicant: Sony Corporation
    Inventors: Tomohiro Ikegami, Yutaka Okazaki
  • Patent number: 6429992
    Abstract: A rotary magnetic head unit has a non-contact type transmission device capable of reliably performing non-contact transmission both in signal and power supply systems and designed so as to be smaller in size. The non-contact type transmission device is formed of a rotating member and a fixed member each having a power supply wiring section for transmitting a power supply, a signal wiring section for transmitting a signal, and a crosstalk prevention section positioned between the power supply wiring section and the signal wiring section to prevent crosstalk between these sections.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: August 6, 2002
    Assignee: Sony Corporation
    Inventors: Tadashi Ozue, Toshio Shirai, Tomohiro Ikegami
  • Patent number: 6356403
    Abstract: A rotary magnetic head apparatus is provided which can be formed into a small size even if a plurality of reproduction heads are provided.
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: March 12, 2002
    Assignee: Sony Corporation
    Inventors: Tadashi Ozue, Toshio Shirai, Tomohiro Ikegami
  • Publication number: 20010043421
    Abstract: A rotary magnetic head apparatus is provided which can be formed into a small size even if a plurality of reproduction heads are provided.
    Type: Application
    Filed: April 20, 1998
    Publication date: November 22, 2001
    Inventors: TADASHI OZUE, TOSHIO SHIRAI, TOMOHIRO IKEGAMI