Patents by Inventor Kiyozumi Kokawa
Kiyozumi Kokawa 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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Publication number: 20210028634Abstract: A pair of right and left fixing holes and a pair of strap attachment holes are provided on a rear surface of a main body housing at a position which does not protrude from a side area S in a planar view. A bottom edge portion of an upper recessed portion is provided above the fixing hole to cover each of the right and left fixing holes, the strap attachment holes are provided to be coaxial with the bottom edge portion, and it is ensured that durability and compactness of the charger are obtained.Type: ApplicationFiled: October 7, 2020Publication date: January 28, 2021Applicant: MAKITA CORPORATIONInventors: Hideyuki TAGA, Yasuhiro TABUCHI, Hidenori NAGASAKA, Kiyozumi KOKAWA, Shinsuke OKUDA
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Patent number: 10840717Abstract: A pair of right and left fixing holes and a pair of strap attachment holes are provided on a rear surface of a main body housing at a position which does not protrude from a side area S in a planar view. A bottom edge portion of an upper recessed portion is provided above the fixing hole to cover each of the right and left fixing holes, the strap attachment holes are provided to be coaxial with the bottom edge portion, and it is ensured that durability and compactness of the charger are obtained.Type: GrantFiled: January 12, 2018Date of Patent: November 17, 2020Assignee: MAKITA CORPORATIONInventors: Hideyuki Taga, Yasuhiro Tabuchi, Hidenori Nagasaka, Kiyozumi Kokawa, Shinsuke Okuda
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Publication number: 20180138725Abstract: A pair of right and left fixing holes and a pair of strap attachment holes are provided on a rear surface of a main body housing at a position which does not protrude from a side area S in a planar view. A bottom edge portion of an upper recessed portion is provided above the fixing hole to cover each of the right and left fixing holes, the strap attachment holes are provided to be coaxial with the bottom edge portion, and it is ensured that durability and compactness of the charger are obtained.Type: ApplicationFiled: January 12, 2018Publication date: May 17, 2018Applicant: MAKITA CORPORATIONInventors: Hideyuki TAGA, Yasuhiro TABUCHI, Hidenori NAGASAKA, Kiyozumi KOKAWA, Shinsuke OKUDA
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Patent number: 9906055Abstract: A pair of right and left fixing holes and a pair of strap attachment holes are provided on a rear surface of a main body housing at a position which does not protrude from a side area S in a planar view. A bottom edge portion of an upper recessed portion is provided above the fixing hole to cover each of the right and left fixing holes, the strap attachment holes are provided to be coaxial with the bottom edge portion, and it is ensured that durability and compactness of the charger are obtained.Type: GrantFiled: May 28, 2013Date of Patent: February 27, 2018Assignee: MAKITA CORPORATIONInventors: Hideyuki Taga, Yasuhiro Tabuchi, Hidenori Nagasaka, Kiyozumi Kokawa, Shinsuke Okuda
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Patent number: 9248566Abstract: A tool housing case includes a main body case, for holding a power tool, for example, and an accessory case, for holding a power tool accessory, for example, which accessory case is connectable to the main body case on a handle side of the main body case near a main body case handle. The accessory case has an opening that can be selectively closed by a cover element. A space is provided between the handle and the accessory case for receiving a user's hand when the handle is gripped, and when a user's hand is not gripping the handle, this space allows access to the accessory case.Type: GrantFiled: December 26, 2013Date of Patent: February 2, 2016Assignee: Makita CorporationInventors: Tooru Horiyama, Naoto Akiyama, Yukiyasu Okouchi, Shinya Bito, Kiyozumi Kokawa
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Publication number: 20150137758Abstract: A pair of right and left fixing holes and a pair of strap attachment holes are provided on a rear surface of a main body housing at a position which does not protrude from a side area S in a planar view. A bottom edge portion of an upper recessed portion is provided above the fixing hole to cover each of the right and left fixing holes, the strap attachment holes are provided to be coaxial with the bottom edge portion, and it is ensured that durability and compactness of the charger are obtained.Type: ApplicationFiled: May 28, 2013Publication date: May 21, 2015Inventors: Hideyuki Taga, Yasuhiro Tabuchi, Hidenori Nagasaka, Kiyozumi Kokawa, Shinsuke Okuda
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Publication number: 20140183075Abstract: A tool housing case includes a main body case, for holding a power tool, for example, and an accessory case, for holding a power tool accessory, for example, which accessory case is connectable to the main body case on a handle side of the main body case near a main body case handle. The accessory case has an opening that can be selectively closed by a cover element. A space is provided between the handle and the accessory case for receiving a user's hand when the handle is gripped, and when a user's hand is not gripping the handle, this space allows access to the accessory case.Type: ApplicationFiled: December 26, 2013Publication date: July 3, 2014Applicant: Makita CorporationInventors: Tooru Horiyama, Naoto Akiyama, Yukiyasu Okouchi, Shinya Bito, Kiyozumi Kokawa
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Publication number: 20130312382Abstract: A lawn mower may include a main body having first right and left wheels, a mowing blade attached to the main body and configured to be rotated by a power source, and at least one mowing width indicator. The mowing blade is configured such that a mowing width thereof is greater than a distance between inner end surfaces of the first right and left wheels. The at least one mowing width indicator is formed in the first right and left wheels.Type: ApplicationFiled: May 16, 2013Publication date: November 28, 2013Inventors: Kiyozumi KOKAWA, Kazunori HATTORI
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Patent number: 8439192Abstract: A toolbox is configured to store at least one hand-held tool in a forward leaning position. A front end portion of a tool main body and a rear end potion of a handle are supported by a seat portion of the toolbox.Type: GrantFiled: April 6, 2009Date of Patent: May 14, 2013Assignee: Makita CorporationInventors: Munetoshi Goto, Kiyozumi Kokawa, Toru Horiyama, Yoshizo Hasegawa
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Patent number: 8113297Abstract: A power tool includes a body, a tool bit, a driving mechanism and a handgrip extending from an end of the handgrip proximal to the body to a grip distal end in a direction that crosses the axial direction of the tool bit. The power tool includes a holding optimization region that is arranged on the handgrip and shaped to match the shape of the user's fingers while the user is holding the handgrip. The holding optimization region at least includes a rearward end surface of a grip distal end region configured such that a normal extending from the rearward end surface crosses the axial direction of the tool bit forward of the handgrip, whereby it is possible to optimize the force of the user's fingers and palm applied to the handgrip.Type: GrantFiled: December 7, 2010Date of Patent: February 14, 2012Assignee: Makita CorporationInventors: Kazuyuki Sakakibara, Kiyozumi Kokawa
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Publication number: 20110079409Abstract: It is an object of the invention to provide an effective technique for reducing the load of user's fingers in a power tool. A representative power tool includes a body, a tool bit, a driving means and a handgrip that extends from a grip proximal end on the side of the body to a grip distal end in a direction that crosses the axial direction of the tool bit. The power tool includes a holding optimization region that is arranged on the handgrip and shaped to match with the holding form of the fingers of the user when the user holds the handgrip. Specifically, the holding optimization region at least includes the rear end surface of the grip distal end region such that a normal on the rear end surface crosses an axis of the tool bit forward of the handgrip. As a result, according to the invention, the force of the user's fingers and palm on the handgrip can be optimized.Type: ApplicationFiled: December 7, 2010Publication date: April 7, 2011Applicant: MAKITA CORPORATIONInventors: Kazuyuki Sakakibara, Kiyozumi Kokawa
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Publication number: 20100129701Abstract: One aspect according to the present invention includes a battery pack having a battery pack body. The battery pack body includes a finger engaging portion engageable with a finger or fingers of an operator in a removing direction of the battery pack body from a power tool.Type: ApplicationFiled: November 20, 2009Publication date: May 27, 2010Applicant: MAKITA CORPORATIONInventors: Tsuyoshi Murayama, Kiyozumi Kokawa, Kazutoshi Ogino
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Patent number: D608375Type: GrantFiled: September 5, 2008Date of Patent: January 19, 2010Assignee: Makita CorporationInventors: Kiyozumi Kokawa, Shinsuke Okuda, Masahiko Miura
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Patent number: D636996Type: GrantFiled: August 4, 2010Date of Patent: May 3, 2011Assignee: Makita CorporationInventors: Kiyozumi Kokawa, Tomonori Kawase
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Patent number: D642518Type: GrantFiled: February 22, 2011Date of Patent: August 2, 2011Assignee: Makita CorporationInventor: Kiyozumi Kokawa
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Patent number: D661903Type: GrantFiled: August 4, 2010Date of Patent: June 19, 2012Assignee: Makita CorporationInventors: Kiyozumi Kokawa, Tomonori Kawase
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Patent number: D668869Type: GrantFiled: April 10, 2012Date of Patent: October 16, 2012Assignee: Makita CorporationInventors: Yuji Yamamoto, Kiyozumi Kokawa
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Patent number: D671094Type: GrantFiled: October 6, 2011Date of Patent: November 20, 2012Assignee: Makita CorporationInventors: Kiyozumi Kokawa, Tomonori Kawase
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Patent number: D686309Type: GrantFiled: July 31, 2012Date of Patent: July 16, 2013Assignee: Makita CorporationInventors: Kiyozumi Kokawa, Shinsuke Okuda, Fuzhi Zhang
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Patent number: D706603Type: GrantFiled: August 26, 2013Date of Patent: June 10, 2014Assignee: Makita CorporationInventors: Kiyozumi Kokawa, Shinsuke Okuda