Patents by Inventor Yoshifumi Morita
Yoshifumi Morita 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: 20140208598Abstract: A vegetation cutter comprises a frame rod having a front end portion and a rear end portion, and assuming a hollow tube having an open front end; a cutter head mounted on the front end portion of the frame rod and including a drive motor, a cooling fan to be rotated by the drive motor, and a rotary cutter to be rotated by the drive motor; and a power head mounted on the rear end portion of the frame rod and providing electric power for the drive motor. The frame rod is provided with an air intake aperture located at a position rearward than the cutter head and communicating through the hollow tube toward the cutter head. The frame rod is comprised of a front part rod and a rear part rod separably coupled together by means of a tubular joint. The air intake aperture is located on the front part rod.Type: ApplicationFiled: January 30, 2014Publication date: July 31, 2014Inventors: Yoshifumi MORITA, Akihiro NOMURA, Hiroshi NOJIRI
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Publication number: 20140182143Abstract: A vegetation cutter includes a frame rod assuming a pole and having a front end and a rear end; a cutter head mounted on the front end of the frame rod and including a rotary cutter and a drive motor connected to the rotary cutter; controller head mounted on the rear end of the frame rod and including a control circuit for controlling the drive motor; and a handle fixed to the frame rod to be held by hands of a user. The cutter head includes a cutter frame for enclosing the drive motor therein, rotatably supports the rotary cutter below the cutter frame and is connected to the frame rod. The cutter frame is comprised of a wall member formed with a plurality of ridgelike ribs projecting inward from a platelike member, each rib having a height between 0.5 mm and 10 mm.Type: ApplicationFiled: December 18, 2013Publication date: July 3, 2014Inventor: Yoshifumi MORITA
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Publication number: 20140165521Abstract: A vegetation cutter is comprised of a frame rod assuming a shape of a pole, and having a front end portion and a rear end portion; a cutter head mounted on the front end portion of the frame rod and including a rotary cutter and a drive motor connected to the rotary cutter; a controller head including a control circuit for controlling the drive motor; and a handle fixed to the frame rod to be held by hands of a user. The cutter head includes a cutter frame for enclosing the drive motor therein, rotatably supporting the rotary cutter below the cutter frame and being connected to the front end portion of the frame rod at an upper rear end portion of the cutter frame. The cutter frame is comprised of a shell wall member and a motor enclosure for enclosing the motor.Type: ApplicationFiled: December 18, 2013Publication date: June 19, 2014Inventor: Yoshifumi MORITA
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Publication number: 20140165412Abstract: A work machine includes an operation rod, a front unit disposed at a front end of the operation rod and configured to attach a tool, a rear unit disposed at a rear end of the operation rod and configured to attach a battery, a brushless motor disposed in the front unit and configured to drive the tool, a motor controller disposed in the rear unit and electrically coupled with the battery, and a plurality of motor power lines disposed along the operation rod and configured to electrically couple the motor controller with the brushless motor.Type: ApplicationFiled: December 6, 2013Publication date: June 19, 2014Applicant: MAKITA CORPORATIONInventors: Yoshifumi MORITA, Katsuna HAYASHI
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Patent number: 8716908Abstract: A power tool in the form of an electric disc grinder has a driving motor for driving a grinding wheel that performs a grinding or polishing operation on a workpiece, a motor housing that houses the driving motor, a rear cover that is mounted to a rear end region of the motor housing and forms together with the motor housing a grip to be held by a user, and a power switch including an operating lever that extends longitudinally on both of the motor housing and the rear cover and is operated by gripping with a user's hand, and a switch part that is disposed within the rear cover and actuated by operation of the operating lever to control energization of the driving motor and connected to the operating lever through an opening.Type: GrantFiled: September 1, 2009Date of Patent: May 6, 2014Assignee: Makita CorporationInventors: Shigeru Takeda, Shin Sugiura, Tadashi Fukumoto, Yoshifumi Morita
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Publication number: 20140046548Abstract: A control system calculates inputs to a control target that has m inputs and n outputs (m=n, each of m and n is a natural number that is more than one), while designating a plurality of combinations of the inputs and the outputs. A feedback controller calculates, with respect to each designated combination, a control input to a non-interference controller based on a difference between a target value and a current value of the control quantity to make the current value follow the target value. The non-interference controller executes, with respect to each designated combination, a non-interference control to reduce influence due to mutual interference between n control quantities. This reduces the number of combinations of the inputs and the outputs, the combinations whose mutual interference needs considering; thereby, the non-interference control may be easily achieved.Type: ApplicationFiled: July 18, 2013Publication date: February 13, 2014Inventors: Yasuhiko MUKAI, Yoshifumi MORITA, Hiroyuki UKAI, Makoto IWASAKI, Takeshi WADA
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Publication number: 20140019505Abstract: An apparatus for estimating a transfer function of at target object having divided systems is disclosed. The apparatus acquires an estimation equation to estimate the transfer function of the target object, and determines, for each arithmetic operation in the estimation equation, whether the arithmetic operation is an addition or a multiplication. For the multiplication, the apparatus performs the multiplication of frequency response characteristics in the frequency domain. For addition, the apparatus converts the frequency response characteristics into time response characteristics, performs the addition of the time response characteristics in the time domain, and reconverts a result of the addition into the frequency domain.Type: ApplicationFiled: July 11, 2013Publication date: January 16, 2014Inventors: Yasuhiko MUKAI, Yoshifumi MORITA, Hiroyuki UKAI, Makoto IWASAKI, Hiroyasu OTAKE, Ryo KANO
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Publication number: 20130328460Abstract: An electric power tool of an embodiment of the present invention uses a motor provided with a yoke as a drive source, and is configured such that an end portion of an electric component mounted on a drive circuit of the motor is electrically connected to the yoke of the motor through a conductive elastic body.Type: ApplicationFiled: January 24, 2012Publication date: December 12, 2013Applicant: MAKITA CORPORATIONInventors: Shingo Kamiya, Junichi Nishikimi, Yoshifumi Morita
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Publication number: 20130260046Abstract: A die coater includes: a detecting section which detects a thickness of a coating film formed on a substrate; and a controlling section which can control the quantity of a supply flow of a coating liquid to be supplied to a cavity by a supplying section and the quantity of an ejection flow of the coating liquid to be ejected from the cavity by an ejecting section, on the basis of a detection result of the detecting section, when a coating width in a longitudinal direction of a slot has been changed.Type: ApplicationFiled: March 13, 2013Publication date: October 3, 2013Applicant: NITTO DENKO CORPORATIONInventors: Makoto Komatsubara, Yoshifumi Morita, Osamu Suzuki
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Publication number: 20130031787Abstract: A brush cutter is provided with an operating rod, a cord holder configured to be rotatably driven at a front end of the operating rod, a cutting cord held by the cord holder and configured that a tip of the cutting cord is drawn out from the cord holder, and an under cover configured to cover from an under side a part of a region in which the cutting cord extending from the cord holder revolves. The cord holder is provided with a cord feeding button that projects downward and is configured to feed the cutting cord by being pressed. The under cover is provided with an opening that exposes the cord feeding button.Type: ApplicationFiled: July 20, 2012Publication date: February 7, 2013Applicant: MAKITA CORPORATIONInventors: Takahiro KAMIYA, Yoshifumi MORITA, Shoko OHNO
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Patent number: 8197310Abstract: A dust box includes: an attachment portion configured to be attached to a dust-discharging nozzle extending from a housing of an electric tool; and a dust-collecting portion connected to the attachment portion and configured to store dust particles to be discharged from the nozzle. The dust-collecting portion mainly consists of a box which is made of synthetic resin and configured to be detachably connected to the attachment portion, and a paper bag received in the box and configured to store the dust particles to be discharged from the nozzle.Type: GrantFiled: October 14, 2011Date of Patent: June 12, 2012Assignee: Makita CorporationInventors: Yukio Yamashiro, Hirokazu Hagiwara, Yoshifumi Morita, Takashi Kumagai
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Patent number: 8175771Abstract: There is provided a control apparatus that controls a motor of an electric power steering system to assist a steering effort of an operator. The control apparatus includes a sensor, a parameter computer, a difference computer, a target torque computer, and a motor driver. The parameter computer computes a current value of one of physical parameters of one of constituents of the electric power steering system based on a steering parameter determined by the sensor referring to an equation of motion. The difference computer computes a difference between the current value of the one of the physical parameters computed by the parameter computer and a predetermined value of the one of the physical parameters. The target torque computer computes a target torque of the motor which compensates for the difference between the current value and the predetermined value of the one of the physical parameters.Type: GrantFiled: June 10, 2008Date of Patent: May 8, 2012Assignees: National University Corporation Nagoya Institute of Technology, Denso CorporationInventors: Hiroyuki Ukai, Yoshifumi Morita, Makoto Iwasaki, Nobuyuki Matsui, Norio Tsuchida, Yuya Yamamoto, Jiro Hayashi, Akihiko Sawada, Nobuhiko Makino
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Publication number: 20120095832Abstract: It is also an object of the present invention to provide objective advertisement plan(s). The target specifying information storage part 202 stores information for specifying target attribution including information for specifying information delivery medium of an object to contact with correspondently with searchers' id. The search term storage part 203 correspondently stores a searcher's id, the timing of search, and the term used for the search. The extraction part 204 extracts the timing of search for such search term for each searcher's id, segments the extracted search timing for each searcher's id into a predetermined number in chronological order and then extracts searcher's id belonging to each segment.Type: ApplicationFiled: December 6, 2011Publication date: April 19, 2012Applicant: DENTSU INC.Inventors: Satoshi NISHIDA, Shigetaka YAMAKAWA, Mieko SUGIHARA, Keita MANABE, Jun HASEGAWA, Yutaka KAMOSHITA, Hideaki HARUTA, Yoshifumi MORITA
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Publication number: 20120034856Abstract: A dust box includes: an attachment portion configured to be attached to a dust-discharging nozzle extending from a housing of an electric tool; and a dust-collecting portion connected to the attachment portion and configured to store dust particles to be discharged from the nozzle.Type: ApplicationFiled: October 14, 2011Publication date: February 9, 2012Applicant: MAKITA CORPORATIONInventors: Yukio Yamashiro, Hirokazu Hagiwara, Yoshifumi Morita, Takashi Kumagai
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Patent number: 8103663Abstract: It is also an object of the present invention to provide objective advertisement plan(s). The target specifying information storage part 202 stores information for specifying target attribution including information for specifying information delivery medium of an object to contact with correspondently with searchers' ID. The search term storage part 203 correspondently stores a searcher's ID, the timing of search, and the term used for the search. The extraction part 204 extracts the timing of search for such search term for each searcher's ID, segments the extracted search timing for each searcher's ID into a predetermined number in chronological order and then extracts searcher's ID belonging to each segment.Type: GrantFiled: September 26, 2008Date of Patent: January 24, 2012Assignee: Dentsu Inc.Inventors: Satoshi Nishida, Shigetaka Yamakawa, Mieko Sugihara, Keita Manabe, Jun Hasegawa, Yutaka Kamoshita, Hideaki Haruta, Yoshifumi Morita
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Patent number: 8066554Abstract: A dust box includes: an attachment portion configured to be attached to a dust-discharging nozzle extending from a housing of an electric tool; and a dust-collecting portion connected to the attachment portion and configured to store dust particles to be discharged from the nozzle. The dust-collecting portion mainly consists of a box which is made of synthetic resin and configured to be detachably connected to the attachment portion, and a paper bag received in the box and configured to store the dust particles to be discharged from the nozzle.Type: GrantFiled: April 27, 2009Date of Patent: November 29, 2011Assignee: Makita CorporationInventors: Yukio Yamashiro, Hirokazu Hagiwara, Yoshifumi Morita, Takashi Kumagai
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Publication number: 20110227429Abstract: A power tool in the form of an electric disc grinder has a driving motor for driving a grinding wheel that performs a grinding or polishing operation on a workpiece, a motor housing that houses the driving motor, a rear cover that is mounted to a rear end region of the motor housing and forms together with the motor housing a grip to be held by a user, and a power switch including an operating lever that extends longitudinally on both of the motor housing and the rear cover and is operated by gripping with a user's hand, and a switch part that is disposed within the rear cover and actuated by operation of the operating lever to control energization of the driving motor and connected to the operating lever through an opening.Type: ApplicationFiled: September 1, 2009Publication date: September 22, 2011Applicant: MAKITA CORPORATIONInventors: Shigeru Takeda, Shin Sugiura, Tadashi Fukumoto, Yoshifumi Morita
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Publication number: 20110035400Abstract: It is also an object of the present invention to provide objective advertisement plan(s). The target specifying information storage means 2 stores information for specifying target attribution including information for specifying information delivery medium of an object to contact with correspondently with searchers' id. The search term storage means 3 correspondently stores a searcher's id, the timing of search, and the term used for the search. The extraction means 4 extracts the timing of search for such search term for each searcher's id, segments the extracted search timing for each searcher's id into a predetermined number in chronological order and then extracts searcher's id belonging to each segment.Type: ApplicationFiled: September 26, 2008Publication date: February 10, 2011Applicant: DENTSU, INCInventors: Satoshi Nishida, Shigetaka Yamakawa, Mieko Sugihara, Keita Manabe, Jun Hasegawa, Yutaka Kamoshita, Hideaki Haruta, Yoshifumi Morita
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Patent number: 7853378Abstract: In a steering system having a variable gear transmission system and an electrical power steering system, respective compensation amounts for first and second electric motors are produced by a first mathematical model. The compensation amounts are added to command values (v1, v2) to generate final command signals (igref, ipref) to the respective electric motors. According to the above structure and operation, a mutual interference between two control systems can be suppressed.Type: GrantFiled: February 1, 2007Date of Patent: December 14, 2010Assignees: Denso Corporation, National University Corporation Nagoya Institute of TechnologyInventors: Hiroshi Ishikawa, Noriyuki Ido, Jirou Hayashi, Kazuhiro Ichikawa, Hiroyuki Ukai, Yoshifumi Morita, Makoto Iwasaki, Nobuyuki Matsui, Kentaro Torii
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Patent number: D710662Type: GrantFiled: February 19, 2013Date of Patent: August 12, 2014Assignee: Makita CorporationInventors: Tomonori Kawase, Yoshifumi Morita