Patents by Inventor Hirokazu Kimata
Hirokazu Kimata 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).
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Patent number: 8403730Abstract: A grinder can include a stopper projection provided to a grinding stone cover and position a stopper abutting portion on a side of a gear housing in order to restrict a position adjustable range through abutment of the stopper projection to the stopper abutting portion in a position where the grinding stone cover has rotated in a rotational direction of the grinding stone by a set angle.Type: GrantFiled: October 10, 2008Date of Patent: March 26, 2013Assignee: Makita CorporationInventors: Fumitoshi Numata, Hirokazu Kimata
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Patent number: 8198560Abstract: One aspect according to the present invention includes a switch device for a power tool. The switch device includes a switch lever operable to move between an ON position for activating the power tool and an OFF position for stopping activation of the power tool. An on-lock mechanism can lock the switch lever in the ON position. An off-lock mechanism can lock the switch lever in the OFF position. The operation for making the on-lock mechanism effective and the operation for releasing the off-lock mechanism are performed by operating an operation member in different directions from each other or by operating two separate operation members.Type: GrantFiled: December 29, 2009Date of Patent: June 12, 2012Assignee: Makita CorporationInventors: Hirokazu Kimata, Fumitoshi Numata, Junichi Nishikimi, Akira Tomonaga, Tatsuya Yoshizaki
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Publication number: 20110003541Abstract: It is an object of the invention to improve usability of a movable handle, in a sander having the movable handle. The sander includes a rotary working surface, a driving mechanism that is disposed above the rotary working surface in a direction of a rotation axis of the rotary working surface and rotationally drives the rotary working surface, a cylindrical housing that houses the driving mechanism, and a movable handle that is mounted on a surface of a cylindrical part of the cylindrical housing. The movable handle can be turned around a central axis of the cylindrical housing and can be fixed at an arbitrary position in a circumferential direction of the cylindrical housing.Type: ApplicationFiled: June 30, 2010Publication date: January 6, 2011Applicant: MAKITA CORPORATIONInventors: Hao Liu, Kenji Abe, Shigeru Takeda, Yuji Sakakibara, Hirokazu Kimata, Hideharu Muto, Shin Nakamura, Masanori Furusawa, Yoshio Sugiyama, Tomohiro Ukai
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Publication number: 20100210195Abstract: A grinder can include a stopper projection provided to a grinding stone cover and position a stopper abutting portion on a side of a gear housing in order to restrict a position adjustable range through abutment of the stopper projection to the stopper abutting portion in a position where the grinding stone cover has rotated in a rotational direction of the grinding stone by a set angle.Type: ApplicationFiled: October 10, 2008Publication date: August 19, 2010Applicant: MAKITA CORPORATIONInventors: Fumitoshi Numata, Hirokazu Kimata
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Publication number: 20100175972Abstract: One aspect according to the present invention includes a switch device for a power tool. The switch device includes a switch lever operable to move between an ON position for activating the power tool and an OFF position for stopping activation of the power tool. An on-lock mechanism can lock the switch lever in the ON position. An off-lock mechanism can lock the switch lever in the OFF position. The operation for making the on-lock mechanism effective and the operation for releasing the off-lock mechanism are performed by operating an operation member in different directions from each other or by operating two separate operation members.Type: ApplicationFiled: December 29, 2009Publication date: July 15, 2010Applicant: MAKITA CORPORATIONInventors: Hirokazu Kimata, Fumitoshi Numata, Junichi Nishikimi, Akira Tomonaga, Tatsuya Yoshizaki
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Patent number: 7252156Abstract: It is an object of the invention to provide an effective technique for reducing the manufacturing costs of a handle mounted to a power tool. According to the invention, a representative handle may comprise a handle body, a grip, an elastic element and an elastic outer surface member. The grip is hollow-shaped and the handle body is inserted into the grip. The elastic element is disposed between the inner surface of the grip and the outer surface of the handle body to apply a biasing force to the grip upon movement of the grip with respect to the handle body when vibration of the power tool is transmitted from the handle body to the grip. The elastic outer surface member covers the outer surface of the grip. The elastic outer surface member is integrally formed with the elastic element. As a result, the manufacturing costs can be reduced compared with known construction in which the elastic outer surface member and the elastic element are separately formed.Type: GrantFiled: March 27, 2006Date of Patent: August 7, 2007Assignee: Makita CorporationInventors: Yoshio Sugiyama, Sadaharu Oki, Kenichi Kawai, Hirokazu Kimata, Shinsuke Okuda
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Publication number: 20060219419Abstract: It is an object of the invention to provide an effective technique for reducing the manufacturing costs of a handle mounted to a power tool. According to the invention, a representative handle may comprise a handle body, a grip, an elastic element and an elastic outer surface member. The grip is hollow-shaped and the handle body is inserted into the grip. The elastic element is disposed between the inner surface of the grip and the outer surface of the handle body to apply a biasing force to the grip upon movement of the grip with respect to the handle body when vibration of the power tool is transmitted from the handle body to the grip. The elastic outer surface member covers the outer surface of the grip. The elastic outer surface member is integrally formed with the elastic element. As a result, the manufacturing costs can be reduced compared with known construction in which the elastic outer surface member and the elastic element are separately formed.Type: ApplicationFiled: March 27, 2006Publication date: October 5, 2006Applicant: MAKITA CORPORATIONInventors: Yoshio Sugiyama, Sadaharu Oki, Kenichi Kawai, Hirokazu Kimata, Shinsuke Okuda
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Patent number: 6259047Abstract: A power tool includes a motor and a switch device for starting and stopping the motor. The switch device includes an operation member and an on-operation prevention device. The operation member can pivot about a pivotal axis between an on position and an off position and has an on-operation arm and an off-operation arm on either side of the pivotal axis for operation by an operator. The on-operation prevention device serves to prevent the operation member from moving from the off position to the on position and to permit the operation member to move from the off position to the on position.Type: GrantFiled: December 6, 1999Date of Patent: July 10, 2001Assignee: Makita CorporationInventors: Hirokazu Kimata, Shin Sugiura
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Patent number: D305399Type: GrantFiled: August 19, 1987Date of Patent: January 9, 1990Assignee: Makita Electric Works, Ltd.Inventors: Fusao Fushiya, Hirokazu Kimata
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Patent number: D328841Type: GrantFiled: December 21, 1989Date of Patent: August 25, 1992Assignee: Makita Electric Works, Ltd.Inventors: Fusao Fushiya, Hirokazu Kimata