Patents by Inventor Takahiro Yamashita

Takahiro Yamashita 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: 20170037942
    Abstract: A chain guide includes a guide base pivotable about a fulcrum shaft. The fulcrum shaft is arranged between a roller bearing located at the end portion of the guide base, which is closer to the fulcrum shaft, and the center of the guide base in the longitudinal direction of the guide base such that the roller is arranged outside of the fulcrum shaft. In this arrangement, since the rotation moment applied to the above roller bearing due to the pressing force from a chain acts to alleviate the rotation moment applied to the remaining roller bearings, the guise base is less likely to bend.
    Type: Application
    Filed: November 27, 2014
    Publication date: February 9, 2017
    Applicant: NTN Corporation
    Inventors: Akio KATO, Takahiro YAMASHITA, Hisataka HASEGAWA
  • Patent number: 9562593
    Abstract: An object of the present invention is to provide a chain guide superior in silence, which includes: a guide base extending in a traveling direction of a chain; a plurality of roller shafts attached to the guide base at an interval along the traveling direction of the chain; and rollers each rotatably supported by one of the roller shafts. The roller has a cylindrical outer circumferential surface for guiding the chain. The outer circumferential surface of the roller has a cylindricity not greater than 20 ?m.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: February 7, 2017
    Assignee: NTN CORPORATION
    Inventors: Shinji Oishi, Akio Kato, Takahiro Yamashita, Katsufumi Abe
  • Patent number: 9551389
    Abstract: A bicycle disc brake caliper is basically provided with a first side caliper part, a second side caliper part, a layer of bonding material, a mating recess and a mating protrusion. The first side caliper part includes a first bonding surface. The second side caliper part includes a second bonding surface. The layer of bonding material is disposed between the first and second bonding surfaces of the first and second side caliper parts. The mating recess is disposed on one of the first and second side caliper parts. The mating protrusion is disposed on the other of the first and second side caliper parts and mated with the mating recess. The first and second bonding surfaces of the first and second side caliper parts are fixedly bonded together by the layer of bonding material with a brake disc slot being defined between the first and second side caliper parts.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: January 24, 2017
    Assignee: Shimano Inc.
    Inventors: Shinya Hirotomi, Osamu Kariyama, Takahiro Yamashita, Masahito Nakakura, Tetsu Nonoshita
  • Patent number: 9550546
    Abstract: A hydraulic bicycle hose structure includes a hydraulic hose and a first seal. The hydraulic hose has a first end with a first opening. The hydraulic hose is configured to be coupled to a hydraulic component. The hydraulic hose is filled with hydraulic fluid. The first seal is arranged to seal the first opening of the first end of the hydraulic hose. The first seal is configured to be physically ruptured.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: January 24, 2017
    Assignee: Shimano Inc.
    Inventors: Osamu Kariyama, Masahiro Nakakura, Takahiro Yamashita
  • Publication number: 20160348764
    Abstract: A chain transmission device for driving camshafts is provided, the device including a chain including a loose side chain portion, and trained around the crank sprocket and the cam sprockets, and a chain guide mounted on the outer side of the loose side chain portion so as to be pivotable about one of the two end portions of the chain guide, and provided with a plurality of rotatable rollers. An adjustment force is applied to the other of the two end portions of the chain guide by a chain tensioner such that the chain guide is biased toward the chain, so that the rollers of the chain guide can guide the chain by rolling. The winding angle of the portion of the chain located on the outer periphery of the roller located closest to the crank sprocket is set to be 170 degrees or over so as to reduce noise.
    Type: Application
    Filed: February 3, 2015
    Publication date: December 1, 2016
    Inventors: Akio KATO, Takahiro YAMASHITA, Hisataka HASEGAWA
  • Patent number: 9473024
    Abstract: A semiconductor integrated circuit device according to an embodiment includes at least one first transistor connected at its source to an input power supply line, connected at its drain to an output power supply line, and connected at its gate to a first control line, at least one second transistor connected at its source to the input power supply line, connected at its drain to the output power supply line, and connected at its gate to a second control line, a first buffer which drives the first control line, a second buffer configured to receive a control signal input via the first control line and drive the second control line, and a plurality of transfer gates provided to divide the first control line into a plurality of pieces, the plurality of transfer gates being capable of connecting pieces obtained by dividing the first control line.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: October 18, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventor: Takahiro Yamashita
  • Publication number: 20160272451
    Abstract: A printing apparatus includes a mark sensor, a moving section, a web edge sensor, and a printer control section. The moving section can move the mark sensor in a direction intersecting a transport direction of a sheet, or in a width direction. The web edge sensor can detect a location of an edge of the sheet. The printer control section controls the moving section to compensate for a location of the mark sensor, on the basis of a detection result from the web edge sensor which indicates the location of the edge of the sheet.
    Type: Application
    Filed: February 25, 2016
    Publication date: September 22, 2016
    Inventors: Takahiro YAMASHITA, Tomoyuki SHIIYA
  • Patent number: 9448817
    Abstract: An information processing apparatus that can flexibly change an amount of data to be saved. A determining unit determines, at a time when the information processing apparatus is started up, whether termination processing has abnormally ended last-time or not. A detecting unit detects an instruction indicating processing that should be performed at the time of the start-up when the determining unit determines that the termination processing has abnormally ended last-time. A saving unit saves, under the instruction detected by the detecting unit, data stored in a save area determined by the instruction from among storage areas of a nonvolatile main storage device, to a save destination determined by the instruction.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: September 20, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takahiro Yamashita
  • Patent number: 9429216
    Abstract: A chain guide and a chain tensioner device using the chain guide. A roller, brought into contact with a chain, comprises a support shaft supported by an opposing guide base provided along the running direction of the chain, and roller bearings each having a steel outer ring on the outer peripheral surface of the support shaft so as to be brought into contact with the chain. The roller is also configured to be assembled by inserting opposite ends of the support shaft into support recesses on facing wall surfaces of the guide base. The roller has a vibration damping material between the support shaft and the support recess of each of the plate members.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: August 30, 2016
    Assignee: NTN CORPORATION
    Inventors: Akio Kato, Takahiro Yamashita, Katsufumi Abe
  • Patent number: 9411720
    Abstract: An information processing apparatus which is capable of effectively using an overwrite deletion function and a hibernation function. An image forming apparatus as the information processing apparatus that is equipped with an overwrite deletion function for overwriting data stored in a HDD, and a hibernation function for causing data stored in a RAM to be stored in the HDD. In a case where one of the overwrite deletion function and the hibernation function is enabled, a CPU disables the other function.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: August 9, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takahiro Yamashita
  • Publication number: 20160215861
    Abstract: It is an object of the present invention to provide a chain transmission device including rolling-type chain guides capable of guiding a chain quietly. In the chain transmission deice including the chain guides in which a plurality of spaced apart rollers for guiding the chain are arranged, distance L (m) between the contact points of a trained portion of the chain is set to satisfy the following inequality: L < 1 2 ? ? ? MAX ? T ? ( 1 ) where ?MAX is the maximum excitation frequency (Hz) from a crank shaft, ? is the mass of the chain per unit length (kg/m), and T is the time-average tension of the chain (N).
    Type: Application
    Filed: September 11, 2014
    Publication date: July 28, 2016
    Inventors: Akio KATO, Takahiro YAMASHITA, Hisataka HASEGAWA
  • Publication number: 20160203309
    Abstract: A contact sensor capable of inputting a character by tracing a character with user's finger is arranged in a region of a ten-key unit of a mobile telephone. When registering a password to release a key lock, a user traces a shape of a line, a character, a number, or other symbol on the contact sensor with his/her finger so that the shape is inputted and stored in a memory, thereby completing registration of a password. When releasing the key lock, the user traces the registered shape on the contact sensor with his/her finger so that the key lock is released. The input is easy. Even if the password input operation is observed by a third person, the password will not be easily known to the third person.
    Type: Application
    Filed: March 18, 2016
    Publication date: July 14, 2016
    Applicant: KYOCERA CORPORATION
    Inventors: Takahiro Yamashita, Yukari Yamashita, Mitsuhisa Kawaguchi, Takahiro Sato, Katsunobu Taira
  • Patent number: 9365259
    Abstract: A disc brake caliper comprises a caliper main body and an insert member. The caliper main body comprises a first portion, a second portion, a connecting portion, a first hole and a second hole. The connecting portion, the first portion and the second portion are formed as a single unitary member. A banjo fixing member is to be attached to the first hole. The second hole is provided apart from the first hole and extending from the first portion to the connecting portion so as to at least partially overlap the slit in the connecting portion. The insert member is configured to be inserted into the second hole. The insert member extends from the first portion to the connecting portion so as to at least partially overlap the slit in the second hole.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: June 14, 2016
    Assignee: SHIMANO INC.
    Inventors: Shinya Hirotomi, Takefumi Terada, Takaaki Fujiwara, Takahiro Yamashita
  • Patent number: 9342392
    Abstract: An image forming apparatus configured to operate in a first power state and a second power state that uses less power than the first power state, in which error information for identifying processing that resolves an error detected during initialization processing is associated and registered in a storage unit, and processing for resolving the detected error is executed based on the error information registered in the storage unit.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: May 17, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takahiro Yamashita
  • Patent number: 9313355
    Abstract: An information processing apparatus activatable by first activation processing or by second activation processing, and method for controlling activation of the apparatus. When the information processing apparatus detects a request for causing it to activate by second activation processing upon the activation, it activates by the second activation processing when it is caused to activate due to a switch. The information processing apparatus activates by a first activation processing when it is caused to activate due to a received instruction.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: April 12, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takahiro Yamashita
  • Patent number: 9287845
    Abstract: A bandpass filter comprising two or more resonators arranged between two input/output terminals in a laminate substrate comprising pluralities of dielectric layers; each resonator being constituted by a resonance line and a resonance capacitance connected to one end of the resonance line; capacitance electrodes forming said resonance capacitances and said resonance lines being arranged on different dielectric layers, via a planar ground electrode covering the entire structural portion of the bandpass filter when viewed in a lamination direction; and in each of the resonators connected to said two input/output terminals, the junctions of said input/output terminals to said paths between said resonance lines and said resonance capacitances being closer to said resonance capacitances than said resonance lines in a lamination direction.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: March 15, 2016
    Assignee: HITACHI METALS, LTD.
    Inventors: Keisuke Fukamachi, Takahiro Yamashita, Takahiro Umeyama
  • Publication number: 20160026232
    Abstract: An information processing apparatus according to the present embodiment is capable of transiting to a power saving state and retains a status of a resume requesting device before the information processing apparatus transits to the power saving state. When resuming from the power saving state, the information processing apparatus acquires a status of the resume requesting device. The information processing apparatus further determines a device to which power is supplied based on a result of comparison between the status of the resume requesting device retained and the status of the resume requesting device acquired.
    Type: Application
    Filed: July 15, 2015
    Publication date: January 28, 2016
    Inventor: Takahiro Yamashita
  • Publication number: 20160006190
    Abstract: An electric cable through which power is provided from a power supply device to an electric device, includes an electrical connecting line group having power supply lines for supplying power by a plus side power supply line and a minus-side power supply-line, and a temperature measuring line to wire the temperature measuring line and the power supply line in parallel disposition, a plug disposed to at least one end of the electrical connecting line group, and a thermal sensitive element connected to the power supply line and the temperature measuring line, and disposed inside the plug.
    Type: Application
    Filed: September 9, 2014
    Publication date: January 7, 2016
    Inventors: MAKOTO KATSUURA, SHOGO SUMITOMO, HIROYUKI MIHARA, KOICHI INOUE, TAKAHIRO YAMASHITA, YOSHIKAZU ITAKURA, TAKUYA IMAI
  • Patent number: 9227692
    Abstract: A hydraulic bicycle component system includes a hydraulic component and a first seal. The hydraulic component has a fluid path filled with hydraulic fluid. The hydraulic component is configured to be coupled to a hydraulic hose. The first seal is arranged to seal an end of the fluid path of the hydraulic component.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: January 5, 2016
    Assignee: Shimano Inc.
    Inventors: Osamu Kariyama, Masahiro Nakamura, Takahiro Yamashita
  • Publication number: 20150367908
    Abstract: A bicycle hydraulic operating system is basically provided with first and second actuating devices and a hydraulic operated device. The first actuating device includes a first operating member, a first master cylinder and a first master piston. The first master piston moves in the first master cylinder in response to operation of the first operating member. The second actuating device includes a second operating member, a second master cylinder and a second master piston. The second master piston moves in the second master cylinder in response to operation of the second operating member. The hydraulic operated device includes a slave cylinder and a slave piston that is movably arranged in the slave cylinder. The slave cylinder has a slave fluid port that is connected to first and second fluid ports of the first and second master cylinders. Operation of either of the first and second operating members moves the slave piston.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 24, 2015
    Inventors: Osamu KARIYAMA, Takahiro Yamashita, Masahiro NAKAKURA