Patents by Inventor Hideyuki Kitamura

Hideyuki Kitamura 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).

  • Magnetic disk device
    Patent number: 11935559
    Abstract: This magnetic disk device is a 3.5-inch magnetic disk device equipped with magnetic disks formed from an aluminum alloy substrate. The magnetic disks arranged in a stacked manner have a thickness Td of 0.3 mm to 0.6 mm, the number N of magnetic disks involved is 10 to 16, and spacers disposed between the magnetic disks have an outside diameter 2 Rso of 35 mm to 65 mm. The outside diameter 2 Rso (mm) of the spacers satisfies 2 Rso??60 Td+70 and 2 Rso??0.5 N2?+16.5 N?73.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: March 19, 2024
    Assignees: UACJ CORPORATION, FURUKAWA ELECTRIC CO., LTD.
    Inventors: Naoki Kitamura, Kotaro Kitawaki, Hideyuki Hatakeyama, Ryohei Yamada, Toshihiro Nakamura
  • METHOD OF PRODUCING N-PHENYL-N'-PHENYLSULFONYL PIPERAZINE DERIVATIVE AND INTERMEDIATE THEREOF
    Publication number: 20150057447
    Abstract: Disclosed is a salt and crystal of a 2-(oxazole-2-yl)phenol derivative which are the intermediate in the process of producing a N-phenyl-N?-phenylsulfonyl piperazine derivative. Further disclosed is a method of producing the salt and the crystal of the compound represented by Formula(I): wherein X is halogen; as well as a process of producing N-phenyl-N?-phenylsulfonyl piperazine derivative through the salt.
    Type: Application
    Filed: March 29, 2013
    Publication date: February 26, 2015
    Inventors: Hideyuki Kitamura, Satoshi Goda, Mitsuru Yamamoto
  • ROLLER STAMP
    Publication number: 20130298789
    Abstract: Disclosed is a roller stamp with a stamp face roller that configures a stamp face, an inner case that fixes the roller with the ability to rotate, an outer case that fixes the inner case on one end and that configures a handgrip, a cap that tightly seals the roller, and a volatile ink that is impregnated on the stamp face of the roller. The disclosed roller stamp can stamp on even a coated paper that does not allow permeation by an ink solvent.
    Type: Application
    Filed: February 5, 2013
    Publication date: November 14, 2013
    Applicant: PLUS Corporation
    Inventors: Shoichi Soma, Hideyuki Kitamura
  • Roller stamp
    Patent number: D668713
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: October 9, 2012
    Assignee: Plus Corporation
    Inventors: Hideyuki Kitamura, Satoru Ono, Jun Ushijima, Shoichi Soma, Mizuki Hara
  • Roller stamp
    Patent number: D679317
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: April 2, 2013
    Assignee: Plus Corporation
    Inventors: Satoru Ono, Hideyuki Kitamura, Shoichi Soma
  • Correction tool
    Patent number: D811477
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: February 27, 2018
    Assignee: PLUS CORPORATION
    Inventors: Hayato Horie, Hiroyuki Nagahama, Hideyuki Kitamura