Patents by Inventor Shingo Umemura
Shingo Umemura 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: 9160125Abstract: A battery adapter can include a plurality of machine-side-connecting sections capable of being connected to a plurality of battery-connecting ports provided on an electric machine, and a battery-side-connecting section(s) to which a battery or batteries can be connected. The number of the machine-side-connecting sections is preferably configured to be larger than the number of the battery-side-connecting section(s). Further, the electric machine is preferably connected to the machine-side-connecting sections of the battery adapter through its battery-connecting ports. The electric machine can be driven by the battery or batteries connected to the battery-side-connecting section(s) of the battery adapter.Type: GrantFiled: November 14, 2012Date of Patent: October 13, 2015Assignee: MAKITA CORPORATIONInventors: Tomoyuki Ota, Hitoshi Suzuki, Yukio Kobayashi, Shingo Umemura
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Patent number: 8752744Abstract: The present invention includes a portable tool including a tool body having a handle, a hook including a hook body, and a mounting device. The mounting device enables the hook body to be mounted to the handle with the hook body oriented in any one of a plurality of different directions and positioned at any one of a plurality of different positions along the oriented direction.Type: GrantFiled: May 8, 2009Date of Patent: June 17, 2014Assignee: Makita CorporationInventors: Yukiyasu Okouchi, Shingo Umemura, Takayoshi Yoshimura, Jiro Oda, Kenichi Miyata
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Publication number: 20130130552Abstract: A battery adapter can include a plurality of machine-side-connecting sections capable of being connected to a plurality of battery-connecting ports provided on an electric machine, and a battery-side-connecting section(s) to which a battery or batteries can be connected. The number of the machine-side-connecting sections is preferably configured to be larger than the number of the battery-side-connecting section(s). Further, the electric machine is preferably connected to the machine-side-connecting sections of the battery adapter through its battery-connecting ports. The electric machine can be driven by the battery or batteries connected to the battery-side-connecting section(s) of the battery adapter.Type: ApplicationFiled: November 14, 2012Publication date: May 23, 2013Inventors: Tomoyuki OTA, Hitoshi SUZUKI, Yukio KOBAYASHI, Shingo UMEMURA
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Publication number: 20090278012Abstract: The present invention includes a portable tool including a tool body having a handle, a hook including a hook body, and a mounting device. The mounting device enables the hook body to be mounted to the handle with the hook body oriented in any one of a plurality of different directions and positioned at any one of a plurality of different positions along the oriented direction.Type: ApplicationFiled: May 8, 2009Publication date: November 12, 2009Applicant: MAKITA CORPORATIONInventors: Yukiyasu Okouchi, Shingo Umemura, Takayoshi Yoshimura, Jiro Oda, Kenichi Miyata
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Patent number: 7201235Abstract: A driver drill that can effectively prevent erroneous clutch operation in a drill mode is provided. A flat washer positioned between steel balls for locking an internal gear and a coil spring is rotatable by rotative operation of a mode-change ring. Also, protruding streaks are provided on a small-diameter unit of a second gear case around which a flat washer is externally mounted. The protruding streaks interfere with internal projections on an inner circumference of the flat washer at its predetermined rotating position to regulate a forward movement of the flat washer. When a drill mode is selected with the mode-change ring, the flat washer is locked by the protruding streaks.Type: GrantFiled: November 9, 2004Date of Patent: April 10, 2007Assignee: Makita CorporationInventors: Shingo Umemura, Masahiko Miura
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Publication number: 20050150669Abstract: A driver drill that can effectively prevent erroneous clutch operation in a drill mode is provided. A flat washer positioned between steel balls for locking an internal gear and a coil spring is rotatable by rotative operation of a mode-change ring. Also, protruding streaks are provided on a small-diameter unit of a second gear case around which a flat washer is externally mounted. The protruding streaks interfere with internal projections on an inner circumference of the flat washer at its predetermined rotating position to regulate a forward movement of the flat washer. When a drill mode is selected with the mode-change ring, the flat washer is locked by the protruding streaks.Type: ApplicationFiled: November 9, 2004Publication date: July 14, 2005Applicant: Makita CorporationInventors: Shingo Umemura, Masahiko Miura
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Patent number: 6566005Abstract: A battery pack (1) includes an air intake port (9), air discharge ports (11), first air passages (24), and a second air passage (25). Cooling air introduced into the battery pack through the air intake port (9) flows around and through two cell groups contained in the pack before exiting to the pack from the discharge ports (11). As the intake port and the discharge ports are both provided at an upper enclosure (4) of the battery pack that is set on a charger (50) for charging or an electric power tool as a power source, neither intake port nor the discharge ports are exposed to the exterior environment whether the pack is set on the charger or attached to a power tool.Type: GrantFiled: November 6, 2000Date of Patent: May 20, 2003Assignee: Makita CorporationInventors: Yasutoshi Shimma, Junichi Masuda, Shingo Umemura, Kazuyuki Sakakibara
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Patent number: 6213224Abstract: An electric power tool is provided including a main housing (2) assembled by fitting together right and left casing halves (3, 4), a drive unit (5), a spindle (14) coupled to the drive unit, and a change ring (20). The drive unit includes a DC motor (6), a gear assembly (7), and first and second gear cases (9, 15). The aluminum-alloy second gear case (15) is provided with a connecting portion (17) which has an outer shape that smoothly and continuously connects with the front end of the main housing and which is secured to the main housing by four screws (24) in the axial direction toward the rear portion of the tool. In addition, the second gear case includes a small-diameter journal bearing (16) which extends forwardly from the front end of the connecting portion (17) within the change ring so as to support the spindle of the tool.Type: GrantFiled: June 16, 1999Date of Patent: April 10, 2001Assignee: Makita CorporationInventors: Takefumi Furuta, Shingo Umemura, Shinsuke Mori
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Charging system including a charger and an electric power tool operating on an internal battery unit
Patent number: 6066938Abstract: A battery-charging system is provided that does not require removal of batteries from an impact screwdriver (1) for recharging. The battery-charging system includes the impact screwdriver and a charger (20). The impact screwdriver (1) has a nose (3a) to which a tool bit is attached. The impact screwdriver additionally includes a grip handle (4) containing a battery unit (5) whose terminals (10) for recharging are exposed in a surface of a protrusion (7) of the grip handle. The charger (20) includes a charger circuit encased in an enclosure having a base (21) covered with a housing (22). The housing of the charger is provided with a first receiving recess (29) which can receive the nose (3a) of the screwdriver and a second receiving recess (30) which can receive the protrusion (7) of the screwdriver. The system additionally includes a pair of charge terminals of the charger circuit that resiliently projects into the second receiving recess (30).Type: GrantFiled: March 18, 1999Date of Patent: May 23, 2000Assignees: Makita Corporation, Honda Giken Kogyo Kabushiki KaishaInventors: Koki Hyodo, Manabu Sugimoto, Shin-ichi Nakane, Shingo Umemura, Kazuyoshi Horikawa -
Patent number: D436917Type: GrantFiled: May 8, 2000Date of Patent: January 30, 2001Assignee: Makita CorporationInventors: Naohiro Hayakawa, Yoichi Kato, Takao Kuroyanagi, Shingo Umemura
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Patent number: D384261Type: GrantFiled: July 22, 1996Date of Patent: September 30, 1997Assignee: Makita CorporationInventors: Naohiro Hayakawa, Shingo Umemura
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Patent number: D384262Type: GrantFiled: July 22, 1996Date of Patent: September 30, 1997Assignee: Makita CorporationInventors: Naohiro Hayakawa, Shingo Umemura
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Patent number: D411425Type: GrantFiled: August 28, 1998Date of Patent: June 22, 1999Assignee: Makita CorporationInventors: Manabu Sugimoto, Norifumi Niwa, Shingo Umemura
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Patent number: D411947Type: GrantFiled: August 19, 1998Date of Patent: July 13, 1999Assignee: Makita CorporationInventors: Manabu Sugimoto, Norifumi Niwa, Isao Miyashita, Shingo Umemura
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Patent number: D412485Type: GrantFiled: August 7, 1998Date of Patent: August 3, 1999Assignee: Makita CorporationInventors: Yoichi Kato, Shingo Umemura