Patents by Inventor Tomoyuki Hoshi

Tomoyuki Hoshi 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: 20140125159
    Abstract: A power tool capable of preventing entrance of foreign matter or water etc. through the air hole as much as possible is provided. To prevent foreign matter from entering a housing 2 through a outlet 22, a first through hole 70b penetrating a main wall 71 is formed on a part of the main wall 71 of a cover 70 covering the outlet 22, second through holes 70c are formed on: a part closest to a front end portion of the cover 70; an end portion in the extending direction of the handle of the cover 70; and an end portion in the opposite direction to the extending direction of the handle of the cover 70.
    Type: Application
    Filed: August 15, 2012
    Publication date: May 8, 2014
    Applicant: HITACHI KOKI CO., LTD.
    Inventors: Yutaka Ito, Tomomasa Nishikawa, Tetsuhiro Harada, Yoshihiro Nakano, Hiroki Uchida, Tomoyuki Hoshi
  • Publication number: 20120292065
    Abstract: An impact tool includes a motor, a housing, a hummer, an anvil, a hummer case, and an end tool holding unit. The housing accommodates therein the motor. The hummer is rotatable by the motor. The hummer strikes against the anvil in a rotational direction of the hummer. The hummer case covers the hummer and the anvil. The end tool holding unit is connected to the anvil and protrudes from the hummer case in a first direction. The housing supports the hummer case at at least two locations.
    Type: Application
    Filed: February 2, 2011
    Publication date: November 22, 2012
    Applicant: HITACHI KOKI CO. LTD
    Inventors: Tomoyuki Hoshi, Katsuhiro Oomori, Mizuho Nakamura
  • Patent number: 8087556
    Abstract: An electric driver includes a hook portion which is constituted by a deformable hook-like portion and a connecting portion for connecting the hook-like portion to the handle. The hook-like portion is constituted by a base portion connected to the connecting portion and a bent portion continuous to the base portion, and a front end portion continuous to the bent portion and arranged at a position substantially opposed to the base portion. The front end portion and the base portion can be proximate to and remote from each other. The connecting portion holds the hook-like portion in a direction substantially the same as a direction in which the handle extends. The hook-like portion is pivotably held on a first rotating axis center extending in substantially the same direction as the handle.
    Type: Grant
    Filed: November 23, 2007
    Date of Patent: January 3, 2012
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Katsuhiro Oomori, Tomoyuki Hoshi, Hideki Ishida, Masato Sakai, Takuya Teranishi, Takeshi Taniguchi, Takuma Saito, Naoki Tadokoro, Hideyuki Hashimoto, Akira Oono
  • Publication number: 20080185410
    Abstract: An electric driver includes a hook portion which is constituted by a hook-like portion and a connecting portion for connecting the hook-like portion to the handle. The hook-like portion is constituted by a base portion connected to the connecting portion and a bent portion continuous to the base portion and a front end portion continuous to the bent portion and arranged at a position substantially opposed to the base portion and can be deformed. The front end portion and the base portion can be proximate to and remote from each other. The connecting portion holds the hook-like portion in a state of being hung down in a direction substantially the same as a direction of extending the handle. The hook-like portion is held centering on a first rotating axis center extended in the direction of hanging down the hook-like portion pivotably relative to the handle.
    Type: Application
    Filed: November 23, 2007
    Publication date: August 7, 2008
    Inventors: Katsuhiro OOMORI, Tomoyuki Hoshi, Hideki Ishida, Masato Sakai, Takuya Teranishi, Takeshi Taniguchi, Takuma Saito, Naoki Tadokoro, Hideyuki Hashimoto, Akira Oono